/// <summary>
/// Returns the <see cref="ITopGroups{T}"/> for the specified
/// BlockJoinQuery. The groupValue of each GroupDocs will
/// be the parent docID for that group.
/// The number of documents within each group is calculated as minimum of <paramref name="maxDocsPerGroup"/>
/// and number of matched child documents for that group.
/// Returns <c>null</c> if no groups matched.
/// </summary>
/// <param name="query"> Search query </param>
/// <param name="withinGroupSort"> Sort criteria within groups </param>
/// <param name="offset"> Parent docs offset </param>
/// <param name="maxDocsPerGroup"> Upper bound of documents per group number </param>
/// <param name="withinGroupOffset"> Offset within each group of child docs </param>
/// <param name="fillSortFields"> Specifies whether to add sort fields or not </param>
/// <returns> <see cref="ITopGroups{T}"/> for specified query </returns>
/// <exception cref="IOException"> if there is a low-level I/O error </exception>
public virtual ITopGroups <int> GetTopGroups(ToParentBlockJoinQuery query, Sort withinGroupSort, int offset, int maxDocsPerGroup, int withinGroupOffset, bool fillSortFields)
{
if (!joinQueryID.TryGetValue(query, out int slot))
{
if (totalHitCount == 0)
{
return(null);
}
slot = -1; // LUCENENET: In Java null is converted to -1 for AccumulateGroups()
}
if (sortedGroups is null)
{
if (offset >= queue.Count)
{
return(null);
}
SortQueue();
}
else if (offset > sortedGroups.Length)
{
return(null);
}
return(AccumulateGroups(slot, offset, maxDocsPerGroup, withinGroupOffset, withinGroupSort, fillSortFields));
}
/// <summary>
/// Returns the <see cref="ITopGroups{T}"/> for the specified
/// BlockJoinQuery. The groupValue of each GroupDocs will
/// be the parent docID for that group.
/// The number of documents within each group is calculated as minimum of <paramref name="maxDocsPerGroup"/>
/// and number of matched child documents for that group.
/// Returns <c>null</c> if no groups matched.
/// </summary>
/// <param name="query"> Search query </param>
/// <param name="withinGroupSort"> Sort criteria within groups </param>
/// <param name="offset"> Parent docs offset </param>
/// <param name="maxDocsPerGroup"> Upper bound of documents per group number </param>
/// <param name="withinGroupOffset"> Offset within each group of child docs </param>
/// <param name="fillSortFields"> Specifies whether to add sort fields or not </param>
/// <returns> <see cref="ITopGroups{T}"/> for specified query </returns>
/// <exception cref="IOException"> if there is a low-level I/O error </exception>
public virtual ITopGroups <int> GetTopGroups(ToParentBlockJoinQuery query, Sort withinGroupSort, int offset, int maxDocsPerGroup, int withinGroupOffset, bool fillSortFields)
{
int?slot;
if (!joinQueryID.TryGetValue(query, out slot))
{
if (totalHitCount == 0)
{
return(null);
}
}
if (sortedGroups == null)
{
if (offset >= queue.Count)
{
return(null);
}
SortQueue();
}
else if (offset > sortedGroups.Length)
{
return(null);
}
return(AccumulateGroups(slot == null ? -1 : (int)slot, offset, maxDocsPerGroup, withinGroupOffset, withinGroupSort, fillSortFields));
}
protected bool Equals(ToParentBlockJoinQuery other)
{
return(base.Equals(other) &&
Equals(_parentsFilter, other._parentsFilter) &&
_scoreMode == other._scoreMode &&
Equals(_origChildQuery, other._origChildQuery));
}
public void TestNextDocValidationForToParentBjq()
{
Query parentQueryWithRandomChild = CreateChildrenQueryWithOneParent(GetRandomChildNumber(0));
var blockJoinQuery = new ToParentBlockJoinQuery(parentQueryWithRandomChild, ParentsFilter, ScoreMode.None);
var ex = Throws<InvalidOperationException>(() => IndexSearcher.Search(blockJoinQuery, 1));
StringAssert.Contains("child query must only match non-parent docs", ex.Message);
}
public override Query Rewrite(IndexReader reader)
{
Query childRewrite = _childQuery.Rewrite(reader);
if (childRewrite != _childQuery)
{
Query rewritten = new ToParentBlockJoinQuery(_origChildQuery, childRewrite, _parentsFilter, _scoreMode);
rewritten.Boost = Boost;
return(rewritten);
}
return(this);
}
public override bool Equals(object obj)
{
if (obj is ToParentBlockJoinQuery)
{
ToParentBlockJoinQuery other = (ToParentBlockJoinQuery)obj;
return(_origChildQuery.Equals(other._origChildQuery) &&
_parentsFilter.Equals(other._parentsFilter) &&
_scoreMode == other._scoreMode &&
base.Equals(other));
}
else
{
return(false);
}
}
private void Enroll(ToParentBlockJoinQuery query, ToParentBlockJoinQuery.BlockJoinScorer scorer)
{
scorer.TrackPendingChildHits();
if (joinQueryID.TryGetValue(query, out int?slot))
{
joinScorers[(int)slot] = scorer;
}
else
{
joinQueryID[query] = joinScorers.Length;
//System.out.println("found JQ: " + query + " slot=" + joinScorers.length);
ToParentBlockJoinQuery.BlockJoinScorer[] newArray = new ToParentBlockJoinQuery.BlockJoinScorer[1 + joinScorers.Length];
Array.Copy(joinScorers, 0, newArray, 0, joinScorers.Length);
joinScorers = newArray;
joinScorers[joinScorers.Length - 1] = scorer;
}
}
public void TestBugCausedByRewritingTwice()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, Similarity, TimeZone);
IList<Document> docs = new List<Document>();
for (int i = 0; i < 10; i++)
{
docs.Clear();
docs.Add(MakeJob("ruby", i));
docs.Add(MakeJob("java", 2007));
docs.Add(MakeResume("Frank", "United States"));
w.AddDocuments(docs);
}
IndexReader r = w.Reader;
w.Dispose();
IndexSearcher s = NewSearcher(r);
MultiTermQuery qc = NumericRangeQuery.NewIntRange("year", 2007, 2007, true, true);
// Hacky: this causes the query to need 2 rewrite
// iterations:
qc.SetRewriteMethod(MultiTermQuery.CONSTANT_SCORE_BOOLEAN_QUERY_REWRITE);
Filter parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("docType", "resume"))));
int h1 = qc.GetHashCode();
Query qw1 = qc.Rewrite(r);
int h2 = qw1.GetHashCode();
Query qw2 = qw1.Rewrite(r);
int h3 = qw2.GetHashCode();
assertTrue(h1 != h2);
assertTrue(h2 != h3);
assertTrue(h3 != h1);
ToParentBlockJoinQuery qp = new ToParentBlockJoinQuery(qc, parentsFilter, ScoreMode.Max);
ToParentBlockJoinCollector c = new ToParentBlockJoinCollector(Sort.RELEVANCE, 10, true, true);
s.Search(qp, c);
TopGroups<int> groups = c.GetTopGroups(qp, Sort.INDEXORDER, 0, 10, 0, true);
foreach (GroupDocs<int> group in groups.Groups)
{
assertEquals(1, group.TotalHits);
}
r.Dispose();
dir.Dispose();
}
public virtual void TestSimpleFilter()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, Similarity, TimeZone);
IList<Document> docs = new List<Document>();
docs.Add(MakeJob("java", 2007));
docs.Add(MakeJob("python", 2010));
CollectionsHelper.Shuffle(docs);
docs.Add(MakeResume("Lisa", "United Kingdom"));
IList<Document> docs2 = new List<Document>();
docs2.Add(MakeJob("ruby", 2005));
docs2.Add(MakeJob("java", 2006));
CollectionsHelper.Shuffle(docs2);
docs2.Add(MakeResume("Frank", "United States"));
AddSkillless(w);
bool turn = Random().NextBoolean();
w.AddDocuments(turn ? docs : docs2);
AddSkillless(w);
w.AddDocuments(!turn ? docs : docs2);
AddSkillless(w);
IndexReader r = w.Reader;
w.Dispose();
IndexSearcher s = NewSearcher(r);
// Create a filter that defines "parent" documents in the index - in this case resumes
Filter parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("docType", "resume"))));
// Define child document criteria (finds an example of relevant work experience)
BooleanQuery childQuery = new BooleanQuery();
childQuery.Add(new BooleanClause(new TermQuery(new Term("skill", "java")), BooleanClause.Occur.MUST));
childQuery.Add(new BooleanClause(NumericRangeQuery.NewIntRange("year", 2006, 2011, true, true), BooleanClause.Occur.MUST));
// Define parent document criteria (find a resident in the UK)
Query parentQuery = new TermQuery(new Term("country", "United Kingdom"));
// Wrap the child document query to 'join' any matches
// up to corresponding parent:
ToParentBlockJoinQuery childJoinQuery = new ToParentBlockJoinQuery(childQuery, parentsFilter, ScoreMode.Avg);
assertEquals("no filter - both passed", 2, s.Search(childJoinQuery, 10).TotalHits);
assertEquals("dummy filter passes everyone ", 2, s.Search(childJoinQuery, parentsFilter, 10).TotalHits);
assertEquals("dummy filter passes everyone ", 2, s.Search(childJoinQuery, new QueryWrapperFilter(new TermQuery(new Term("docType", "resume"))), 10).TotalHits);
// not found test
assertEquals("noone live there", 0, s.Search(childJoinQuery, new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("country", "Oz")))), 1).TotalHits);
assertEquals("noone live there", 0, s.Search(childJoinQuery, new QueryWrapperFilter(new TermQuery(new Term("country", "Oz"))), 1).TotalHits);
// apply the UK filter by the searcher
TopDocs ukOnly = s.Search(childJoinQuery, new QueryWrapperFilter(parentQuery), 1);
assertEquals("has filter - single passed", 1, ukOnly.TotalHits);
assertEquals("Lisa", r.Document(ukOnly.ScoreDocs[0].Doc).Get("name"));
// looking for US candidates
TopDocs usThen = s.Search(childJoinQuery, new QueryWrapperFilter(new TermQuery(new Term("country", "United States"))), 1);
assertEquals("has filter - single passed", 1, usThen.TotalHits);
assertEquals("Frank", r.Document(usThen.ScoreDocs[0].Doc).Get("name"));
TermQuery us = new TermQuery(new Term("country", "United States"));
assertEquals("@ US we have java and ruby", 2, s.Search(new ToChildBlockJoinQuery(us, parentsFilter, Random().NextBoolean()), 10).TotalHits);
assertEquals("java skills in US", 1, s.Search(new ToChildBlockJoinQuery(us, parentsFilter, Random().NextBoolean()), Skill("java"), 10).TotalHits);
BooleanQuery rubyPython = new BooleanQuery();
rubyPython.Add(new TermQuery(new Term("skill", "ruby")), BooleanClause.Occur.SHOULD);
rubyPython.Add(new TermQuery(new Term("skill", "python")), BooleanClause.Occur.SHOULD);
assertEquals("ruby skills in US", 1, s.Search(new ToChildBlockJoinQuery(us, parentsFilter, Random().NextBoolean()), new QueryWrapperFilter(rubyPython), 10).TotalHits);
r.Dispose();
dir.Dispose();
}
public void TestChildQueryNeverMatches()
{
Directory d = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), d, Similarity, TimeZone);
Document parent = new Document();
parent.Add(new StoredField("parentID", "0"));
parent.Add(NewTextField("parentText", "text", Field.Store.NO));
parent.Add(NewStringField("isParent", "yes", Field.Store.NO));
IList<Document> docs = new List<Document>();
Document child = new Document();
docs.Add(child);
child.Add(new StoredField("childID", "0"));
child.Add(NewTextField("childText", "text", Field.Store.NO));
// parent last:
docs.Add(parent);
w.AddDocuments(docs);
docs.Clear();
parent = new Document();
parent.Add(NewTextField("parentText", "text", Field.Store.NO));
parent.Add(NewStringField("isParent", "yes", Field.Store.NO));
parent.Add(new StoredField("parentID", "1"));
// parent last:
docs.Add(parent);
w.AddDocuments(docs);
IndexReader r = w.Reader;
w.Dispose();
// never matches:
Query childQuery = new TermQuery(new Term("childText", "bogus"));
Filter parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("isParent", "yes"))));
ToParentBlockJoinQuery childJoinQuery = new ToParentBlockJoinQuery(childQuery, parentsFilter, ScoreMode.Avg);
BooleanQuery parentQuery = new BooleanQuery();
parentQuery.Add(childJoinQuery, BooleanClause.Occur.SHOULD);
parentQuery.Add(new TermQuery(new Term("parentText", "text")), BooleanClause.Occur.SHOULD);
ToParentBlockJoinCollector c = new ToParentBlockJoinCollector(new Sort(new SortField("parentID", SortField.Type_e.STRING)), 10, true, true);
NewSearcher(r).Search(parentQuery, c);
TopGroups<int> groups = c.GetTopGroups(childJoinQuery, null, 0, 10, 0, false);
// Two parents:
assertEquals(2, (int)groups.TotalGroupCount);
// One child docs:
assertEquals(0, groups.TotalGroupedHitCount);
IGroupDocs<int> group = groups.Groups[0];
Document doc = r.Document((int)group.GroupValue);
assertEquals("0", doc.Get("parentID"));
group = groups.Groups[1];
doc = r.Document((int)group.GroupValue);
assertEquals("1", doc.Get("parentID"));
r.Dispose();
d.Dispose();
}
public void TestChildQueryMatchesParent()
{
Directory d = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), d, Similarity, TimeZone);
Document parent = new Document();
parent.Add(new StoredField("parentID", "0"));
parent.Add(NewTextField("parentText", "text", Field.Store.NO));
parent.Add(NewStringField("isParent", "yes", Field.Store.NO));
IList<Document> docs = new List<Document>();
Document child = new Document();
docs.Add(child);
child.Add(new StoredField("childID", "0"));
child.Add(NewTextField("childText", "text", Field.Store.NO));
// parent last:
docs.Add(parent);
w.AddDocuments(docs);
docs.Clear();
parent = new Document();
parent.Add(NewTextField("parentText", "text", Field.Store.NO));
parent.Add(NewStringField("isParent", "yes", Field.Store.NO));
parent.Add(new StoredField("parentID", "1"));
// parent last:
docs.Add(parent);
w.AddDocuments(docs);
IndexReader r = w.Reader;
w.Dispose();
// illegally matches parent:
Query childQuery = new TermQuery(new Term("parentText", "text"));
Filter parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("isParent", "yes"))));
ToParentBlockJoinQuery childJoinQuery = new ToParentBlockJoinQuery(childQuery, parentsFilter, ScoreMode.Avg);
BooleanQuery parentQuery = new BooleanQuery();
parentQuery.Add(childJoinQuery, BooleanClause.Occur.SHOULD);
parentQuery.Add(new TermQuery(new Term("parentText", "text")), BooleanClause.Occur.SHOULD);
ToParentBlockJoinCollector c = new ToParentBlockJoinCollector(new Sort(new SortField("parentID", SortField.Type_e.STRING)), 10, true, true);
Assert.Throws<InvalidOperationException>(() => NewSearcher(r).Search(parentQuery, c));
r.Dispose();
d.Dispose();
}
public void TestGetTopGroups()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, Similarity, TimeZone);
IList<Document> docs = new List<Document>();
docs.Add(MakeJob("ruby", 2005));
docs.Add(MakeJob("java", 2006));
docs.Add(MakeJob("java", 2010));
docs.Add(MakeJob("java", 2012));
CollectionsHelper.Shuffle(docs);
docs.Add(MakeResume("Frank", "United States"));
AddSkillless(w);
w.AddDocuments(docs);
AddSkillless(w);
IndexReader r = w.Reader;
w.Dispose();
IndexSearcher s = new IndexSearcher(r);
// Create a filter that defines "parent" documents in the index - in this case resumes
Filter parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("docType", "resume"))));
// Define child document criteria (finds an example of relevant work experience)
BooleanQuery childQuery = new BooleanQuery();
childQuery.Add(new BooleanClause(new TermQuery(new Term("skill", "java")), BooleanClause.Occur.MUST));
childQuery.Add(new BooleanClause(NumericRangeQuery.NewIntRange("year", 2006, 2011, true, true), BooleanClause.Occur.MUST));
// Wrap the child document query to 'join' any matches
// up to corresponding parent:
ToParentBlockJoinQuery childJoinQuery = new ToParentBlockJoinQuery(childQuery, parentsFilter, ScoreMode.Avg);
ToParentBlockJoinCollector c = new ToParentBlockJoinCollector(Sort.RELEVANCE, 2, true, true);
s.Search(childJoinQuery, c);
//Get all child documents within groups
TopGroups<int>[] getTopGroupsResults = new TopGroups<int>[2];
getTopGroupsResults[0] = c.GetTopGroups(childJoinQuery, null, 0, 10, 0, true);
getTopGroupsResults[1] = c.GetTopGroupsWithAllChildDocs(childJoinQuery, null, 0, 0, true);
foreach (TopGroups<int> results in getTopGroupsResults)
{
assertFalse(float.IsNaN(results.MaxScore));
assertEquals(2, results.TotalGroupedHitCount);
assertEquals(1, results.Groups.Length);
IGroupDocs<int> resultGroup = results.Groups[0];
assertEquals(2, resultGroup.TotalHits);
assertFalse(float.IsNaN(resultGroup.Score));
assertNotNull(resultGroup.GroupValue);
Document parentDocument = s.Doc(resultGroup.GroupValue);
assertEquals("Frank", parentDocument.Get("name"));
assertEquals(2, resultGroup.ScoreDocs.Length); //all matched child documents collected
foreach (ScoreDoc scoreDoc in resultGroup.ScoreDocs)
{
Document childDoc = s.Doc(scoreDoc.Doc);
assertEquals("java", childDoc.Get("skill"));
int year = Convert.ToInt32(childDoc.Get("year"));
assertTrue(year >= 2006 && year <= 2011);
}
}
//Get part of child documents
TopGroups<int> boundedResults = c.GetTopGroups(childJoinQuery, null, 0, 1, 0, true);
assertFalse(float.IsNaN(boundedResults.MaxScore));
assertEquals(2, boundedResults.TotalGroupedHitCount);
assertEquals(1, boundedResults.Groups.Length);
IGroupDocs<int> group = boundedResults.Groups[0];
assertEquals(2, group.TotalHits);
assertFalse(float.IsNaN(group.Score));
assertNotNull(group.GroupValue);
Document parentDoc = s.Doc(group.GroupValue);
assertEquals("Frank", parentDoc.Get("name"));
assertEquals(1, group.ScoreDocs.Length); //not all matched child documents collected
foreach (ScoreDoc scoreDoc in group.ScoreDocs)
{
Document childDoc = s.Doc(scoreDoc.Doc);
assertEquals("java", childDoc.Get("skill"));
int year = Convert.ToInt32(childDoc.Get("year"));
assertTrue(year >= 2006 && year <= 2011);
}
r.Dispose();
dir.Dispose();
}
public void TestSimple()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, Similarity, TimeZone);
IList<Document> docs = new List<Document>();
docs.Add(MakeJob("java", 2007));
docs.Add(MakeJob("python", 2010));
docs.Add(MakeResume("Lisa", "United Kingdom"));
w.AddDocuments(docs);
docs.Clear();
docs.Add(MakeJob("ruby", 2005));
docs.Add(MakeJob("java", 2006));
docs.Add(MakeResume("Frank", "United States"));
w.AddDocuments(docs);
IndexReader r = w.Reader;
w.Dispose();
IndexSearcher s = NewSearcher(r);
// Create a filter that defines "parent" documents in the index - in this case resumes
Filter parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("docType", "resume"))));
// Define child document criteria (finds an example of relevant work experience)
BooleanQuery childQuery = new BooleanQuery();
childQuery.Add(new BooleanClause(new TermQuery(new Term("skill", "java")), BooleanClause.Occur.MUST));
childQuery.Add(new BooleanClause(NumericRangeQuery.NewIntRange("year", 2006, 2011, true, true), BooleanClause.Occur.MUST));
// Define parent document criteria (find a resident in the UK)
Query parentQuery = new TermQuery(new Term("country", "United Kingdom"));
// Wrap the child document query to 'join' any matches
// up to corresponding parent:
ToParentBlockJoinQuery childJoinQuery = new ToParentBlockJoinQuery(childQuery, parentsFilter, ScoreMode.Avg);
// Combine the parent and nested child queries into a single query for a candidate
BooleanQuery fullQuery = new BooleanQuery();
fullQuery.Add(new BooleanClause(parentQuery, BooleanClause.Occur.MUST));
fullQuery.Add(new BooleanClause(childJoinQuery, BooleanClause.Occur.MUST));
ToParentBlockJoinCollector c = new ToParentBlockJoinCollector(Sort.RELEVANCE, 1, true, true);
s.Search(fullQuery, c);
TopGroups<int> results = c.GetTopGroups(childJoinQuery, null, 0, 10, 0, true);
assertFalse(float.IsNaN(results.MaxScore));
//assertEquals(1, results.totalHitCount);
assertEquals(1, results.TotalGroupedHitCount);
assertEquals(1, results.Groups.Length);
IGroupDocs<int> group = results.Groups[0];
assertEquals(1, group.TotalHits);
assertFalse(float.IsNaN(group.Score));
Document childDoc = s.Doc(group.ScoreDocs[0].Doc);
//System.out.println(" doc=" + group.ScoreDocs[0].Doc);
assertEquals("java", childDoc.Get("skill"));
assertNotNull(group.GroupValue);
Document parentDoc = s.Doc(group.GroupValue);
assertEquals("Lisa", parentDoc.Get("name"));
//System.out.println("TEST: now test up");
// Now join "up" (map parent hits to child docs) instead...:
ToChildBlockJoinQuery parentJoinQuery = new ToChildBlockJoinQuery(parentQuery, parentsFilter, Random().NextBoolean());
BooleanQuery fullChildQuery = new BooleanQuery();
fullChildQuery.Add(new BooleanClause(parentJoinQuery, BooleanClause.Occur.MUST));
fullChildQuery.Add(new BooleanClause(childQuery, BooleanClause.Occur.MUST));
//System.out.println("FULL: " + fullChildQuery);
TopDocs hits = s.Search(fullChildQuery, 10);
assertEquals(1, hits.TotalHits);
childDoc = s.Doc(hits.ScoreDocs[0].Doc);
//System.out.println("CHILD = " + childDoc + " docID=" + hits.ScoreDocs[0].Doc);
assertEquals("java", childDoc.Get("skill"));
assertEquals(2007, childDoc.GetField("year").NumericValue);
assertEquals("Lisa", GetParentDoc(r, parentsFilter, hits.ScoreDocs[0].Doc).Get("name"));
// Test with filter on child docs:
assertEquals(0, s.Search(fullChildQuery, new QueryWrapperFilter(new TermQuery(new Term("skill", "foosball"))), 1).TotalHits);
r.Dispose();
dir.Dispose();
}
public void TestAdvanceValidationForToParentBjq()
{
int randomChildNumber = GetRandomChildNumber(0);
// we need to make advance method meet wrong document, so random child number
// in BJQ must be greater than child number in Boolean clause
int nextRandomChildNumber = GetRandomChildNumber(randomChildNumber);
Query parentQueryWithRandomChild = CreateChildrenQueryWithOneParent(nextRandomChildNumber);
ToParentBlockJoinQuery blockJoinQuery = new ToParentBlockJoinQuery(parentQueryWithRandomChild, ParentsFilter, ScoreMode.None);
// advance() method is used by ConjunctionScorer, so we need to create Boolean conjunction query
BooleanQuery conjunctionQuery = new BooleanQuery();
WildcardQuery childQuery = new WildcardQuery(new Term("child", CreateFieldValue(randomChildNumber)));
conjunctionQuery.Add(new BooleanClause(childQuery, BooleanClause.Occur.MUST));
conjunctionQuery.Add(new BooleanClause(blockJoinQuery, BooleanClause.Occur.MUST));
var ex = Throws<InvalidOperationException>(() => IndexSearcher.Search(conjunctionQuery, 1));
StringAssert.Contains("child query must only match non-parent docs", ex.Message);
}
private void Enroll(ToParentBlockJoinQuery query, ToParentBlockJoinQuery.BlockJoinScorer scorer)
{
scorer.TrackPendingChildHits();
int? slot;
if (joinQueryID.TryGetValue(query, out slot))
{
joinScorers[(int) slot] = scorer;
}
else
{
joinQueryID[query] = joinScorers.Length;
//System.out.println("found JQ: " + query + " slot=" + joinScorers.length);
ToParentBlockJoinQuery.BlockJoinScorer[] newArray = new ToParentBlockJoinQuery.BlockJoinScorer[1 + joinScorers.Length];
Array.Copy(joinScorers, 0, newArray, 0, joinScorers.Length);
joinScorers = newArray;
joinScorers[joinScorers.Length - 1] = scorer;
}
}
public void TestRandom()
{
// We build two indices at once: one normalized (which
// ToParentBlockJoinQuery/Collector,
// ToChildBlockJoinQuery can query) and the other w/
// the same docs, just fully denormalized:
Directory dir = NewDirectory();
Directory joinDir = NewDirectory();
int numParentDocs = TestUtil.NextInt(Random(), 100 * RANDOM_MULTIPLIER, 300 * RANDOM_MULTIPLIER);
//final int numParentDocs = 30;
// Values for parent fields:
string[][] parentFields = GetRandomFields(numParentDocs / 2);
// Values for child fields:
string[][] childFields = GetRandomFields(numParentDocs);
bool doDeletes = Random().NextBoolean();
IList<int> toDelete = new List<int>();
// TODO: parallel star join, nested join cases too!
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, Similarity, TimeZone);
RandomIndexWriter joinW = new RandomIndexWriter(Random(), joinDir, Similarity, TimeZone);
for (int parentDocID = 0; parentDocID < numParentDocs; parentDocID++)
{
Document parentDoc = new Document();
Document parentJoinDoc = new Document();
Field id = NewStringField("parentID", "" + parentDocID, Field.Store.YES);
parentDoc.Add(id);
parentJoinDoc.Add(id);
parentJoinDoc.Add(NewStringField("isParent", "x", Field.Store.NO));
for (int field = 0; field < parentFields.Length; field++)
{
if (Random().NextDouble() < 0.9)
{
Field f = NewStringField("parent" + field, parentFields[field][Random().Next(parentFields[field].Length)], Field.Store.NO);
parentDoc.Add(f);
parentJoinDoc.Add(f);
}
}
if (doDeletes)
{
parentDoc.Add(NewStringField("blockID", "" + parentDocID, Field.Store.NO));
parentJoinDoc.Add(NewStringField("blockID", "" + parentDocID, Field.Store.NO));
}
IList<Document> joinDocs = new List<Document>();
if (VERBOSE)
{
StringBuilder sb = new StringBuilder();
sb.Append("parentID=").Append(parentDoc.Get("parentID"));
for (int fieldID = 0; fieldID < parentFields.Length; fieldID++)
{
string parent = parentDoc.Get("parent" + fieldID);
if (parent != null)
{
sb.Append(" parent" + fieldID + "=" + parent);
}
}
Console.WriteLine(" " + sb);
}
int numChildDocs = TestUtil.NextInt(Random(), 1, 20);
for (int childDocID = 0; childDocID < numChildDocs; childDocID++)
{
// Denormalize: copy all parent fields into child doc:
Document childDoc = TestUtil.CloneDocument(parentDoc);
Document joinChildDoc = new Document();
joinDocs.Add(joinChildDoc);
Field childID = NewStringField("childID", "" + childDocID, Field.Store.YES);
childDoc.Add(childID);
joinChildDoc.Add(childID);
for (int childFieldID = 0; childFieldID < childFields.Length; childFieldID++)
{
if (Random().NextDouble() < 0.9)
{
Field f = NewStringField("child" + childFieldID, childFields[childFieldID][Random().Next(childFields[childFieldID].Length)], Field.Store.NO);
childDoc.Add(f);
joinChildDoc.Add(f);
}
}
if (VERBOSE)
{
StringBuilder sb = new StringBuilder();
sb.Append("childID=").Append(joinChildDoc.Get("childID"));
for (int fieldID = 0; fieldID < childFields.Length; fieldID++)
{
string child = joinChildDoc.Get("child" + fieldID);
if (child != null)
{
sb.Append(" child" + fieldID + "=" + child);
}
}
Console.WriteLine(" " + sb);
}
if (doDeletes)
{
joinChildDoc.Add(NewStringField("blockID", "" + parentDocID, Field.Store.NO));
}
w.AddDocument(childDoc);
}
// Parent last:
joinDocs.Add(parentJoinDoc);
joinW.AddDocuments(joinDocs);
if (doDeletes && Random().Next(30) == 7)
{
toDelete.Add(parentDocID);
}
}
foreach (int deleteID in toDelete)
{
if (VERBOSE)
{
Console.WriteLine("DELETE parentID=" + deleteID);
}
w.DeleteDocuments(new Term("blockID", "" + deleteID));
joinW.DeleteDocuments(new Term("blockID", "" + deleteID));
}
IndexReader r = w.Reader;
w.Dispose();
IndexReader joinR = joinW.Reader;
joinW.Dispose();
if (VERBOSE)
{
Console.WriteLine("TEST: reader=" + r);
Console.WriteLine("TEST: joinReader=" + joinR);
for (int docIDX = 0; docIDX < joinR.MaxDoc; docIDX++)
{
Console.WriteLine(" docID=" + docIDX + " doc=" + joinR.Document(docIDX));
}
}
IndexSearcher s = NewSearcher(r);
IndexSearcher joinS = new IndexSearcher(joinR);
Filter parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("isParent", "x"))));
int iters = 200 * RANDOM_MULTIPLIER;
for (int iter = 0; iter < iters; iter++)
{
if (VERBOSE)
{
Console.WriteLine("TEST: iter=" + (1 + iter) + " of " + iters);
}
Query childQuery;
if (Random().Next(3) == 2)
{
int childFieldID = Random().Next(childFields.Length);
childQuery = new TermQuery(new Term("child" + childFieldID, childFields[childFieldID][Random().Next(childFields[childFieldID].Length)]));
}
else if (Random().Next(3) == 2)
{
BooleanQuery bq = new BooleanQuery();
childQuery = bq;
int numClauses = TestUtil.NextInt(Random(), 2, 4);
bool didMust = false;
for (int clauseIDX = 0; clauseIDX < numClauses; clauseIDX++)
{
Query clause;
BooleanClause.Occur occur;
if (!didMust && Random().NextBoolean())
{
occur = Random().NextBoolean() ? BooleanClause.Occur.MUST : BooleanClause.Occur.MUST_NOT;
clause = new TermQuery(RandomChildTerm(childFields[0]));
didMust = true;
}
else
{
occur = BooleanClause.Occur.SHOULD;
int childFieldID = TestUtil.NextInt(Random(), 1, childFields.Length - 1);
clause = new TermQuery(new Term("child" + childFieldID, childFields[childFieldID][Random().Next(childFields[childFieldID].Length)]));
}
bq.Add(clause, occur);
}
}
else
{
BooleanQuery bq = new BooleanQuery();
childQuery = bq;
bq.Add(new TermQuery(RandomChildTerm(childFields[0])), BooleanClause.Occur.MUST);
int childFieldID = TestUtil.NextInt(Random(), 1, childFields.Length - 1);
bq.Add(new TermQuery(new Term("child" + childFieldID, childFields[childFieldID][Random().Next(childFields[childFieldID].Length)])), Random().NextBoolean() ? BooleanClause.Occur.MUST : BooleanClause.Occur.MUST_NOT);
}
int x = Random().Next(4);
ScoreMode agg;
if (x == 0)
{
agg = ScoreMode.None;
}
else if (x == 1)
{
agg = ScoreMode.Max;
}
else if (x == 2)
{
agg = ScoreMode.Total;
}
else
{
agg = ScoreMode.Avg;
}
ToParentBlockJoinQuery childJoinQuery = new ToParentBlockJoinQuery(childQuery, parentsFilter, agg);
// To run against the block-join index:
Query parentJoinQuery;
// Same query as parentJoinQuery, but to run against
// the fully denormalized index (so we can compare
// results):
Query parentQuery;
if (Random().NextBoolean())
{
parentQuery = childQuery;
parentJoinQuery = childJoinQuery;
}
else
{
// AND parent field w/ child field
BooleanQuery bq = new BooleanQuery();
parentJoinQuery = bq;
Term parentTerm = RandomParentTerm(parentFields[0]);
if (Random().NextBoolean())
{
bq.Add(childJoinQuery, BooleanClause.Occur.MUST);
bq.Add(new TermQuery(parentTerm), BooleanClause.Occur.MUST);
}
else
{
bq.Add(new TermQuery(parentTerm), BooleanClause.Occur.MUST);
bq.Add(childJoinQuery, BooleanClause.Occur.MUST);
}
BooleanQuery bq2 = new BooleanQuery();
parentQuery = bq2;
if (Random().NextBoolean())
{
bq2.Add(childQuery, BooleanClause.Occur.MUST);
bq2.Add(new TermQuery(parentTerm), BooleanClause.Occur.MUST);
}
else
{
bq2.Add(new TermQuery(parentTerm), BooleanClause.Occur.MUST);
bq2.Add(childQuery, BooleanClause.Occur.MUST);
}
}
Sort parentSort = GetRandomSort("parent", parentFields.Length);
Sort childSort = GetRandomSort("child", childFields.Length);
if (VERBOSE)
{
Console.WriteLine("\nTEST: query=" + parentQuery + " joinQuery=" + parentJoinQuery + " parentSort=" + parentSort + " childSort=" + childSort);
}
// Merge both sorts:
IList<SortField> sortFields = new List<SortField>(Arrays.AsList(parentSort.GetSort()));
sortFields.AddRange(Arrays.AsList(childSort.GetSort()));
Sort parentAndChildSort = new Sort(sortFields.ToArray());
TopDocs results = s.Search(parentQuery, null, r.NumDocs, parentAndChildSort);
if (VERBOSE)
{
Console.WriteLine("\nTEST: normal index gets " + results.TotalHits + " hits");
ScoreDoc[] hits = results.ScoreDocs;
for (int hitIDX = 0; hitIDX < hits.Length; hitIDX++)
{
Document doc = s.Doc(hits[hitIDX].Doc);
//System.out.println(" score=" + hits[hitIDX].Score + " parentID=" + doc.Get("parentID") + " childID=" + doc.Get("childID") + " (docID=" + hits[hitIDX].Doc + ")");
Console.WriteLine(" parentID=" + doc.Get("parentID") + " childID=" + doc.Get("childID") + " (docID=" + hits[hitIDX].Doc + ")");
FieldDoc fd = (FieldDoc)hits[hitIDX];
if (fd.Fields != null)
{
Console.Write(" ");
foreach (object o in fd.Fields)
{
if (o is BytesRef)
{
Console.Write(((BytesRef)o).Utf8ToString() + " ");
}
else
{
Console.Write(o + " ");
}
}
Console.WriteLine();
}
}
}
bool trackScores;
bool trackMaxScore;
if (agg == ScoreMode.None)
{
trackScores = false;
trackMaxScore = false;
}
else
{
trackScores = Random().NextBoolean();
trackMaxScore = Random().NextBoolean();
}
ToParentBlockJoinCollector c = new ToParentBlockJoinCollector(parentSort, 10, trackScores, trackMaxScore);
joinS.Search(parentJoinQuery, c);
int hitsPerGroup = TestUtil.NextInt(Random(), 1, 20);
//final int hitsPerGroup = 100;
TopGroups<int> joinResults = c.GetTopGroups(childJoinQuery, childSort, 0, hitsPerGroup, 0, true);
if (VERBOSE)
{
Console.WriteLine("\nTEST: block join index gets " + (joinResults == null ? 0 : joinResults.Groups.Length) + " groups; hitsPerGroup=" + hitsPerGroup);
if (joinResults != null)
{
IGroupDocs<int>[] groups = joinResults.Groups;
for (int groupIDX = 0; groupIDX < groups.Length; groupIDX++)
{
IGroupDocs<int> group = groups[groupIDX];
if (group.GroupSortValues != null)
{
Console.Write(" ");
foreach (object o in group.GroupSortValues)
{
if (o is BytesRef)
{
Console.Write(((BytesRef)o).Utf8ToString() + " ");
}
else
{
Console.Write(o + " ");
}
}
Console.WriteLine();
}
assertNotNull(group.GroupValue);
Document parentDoc = joinS.Doc(group.GroupValue);
Console.WriteLine(" group parentID=" + parentDoc.Get("parentID") + " (docID=" + group.GroupValue + ")");
for (int hitIDX = 0; hitIDX < group.ScoreDocs.Length; hitIDX++)
{
Document doc = joinS.Doc(group.ScoreDocs[hitIDX].Doc);
//System.out.println(" score=" + group.ScoreDocs[hitIDX].Score + " childID=" + doc.Get("childID") + " (docID=" + group.ScoreDocs[hitIDX].Doc + ")");
Console.WriteLine(" childID=" + doc.Get("childID") + " child0=" + doc.Get("child0") + " (docID=" + group.ScoreDocs[hitIDX].Doc + ")");
}
}
}
}
if (results.TotalHits == 0)
{
assertNull(joinResults);
}
else
{
CompareHits(r, joinR, results, joinResults);
TopDocs b = joinS.Search(childJoinQuery, 10);
foreach (ScoreDoc hit in b.ScoreDocs)
{
Explanation explanation = joinS.Explain(childJoinQuery, hit.Doc);
Document document = joinS.Doc(hit.Doc - 1);
int childId = Convert.ToInt32(document.Get("childID"));
assertTrue(explanation.IsMatch);
assertEquals(hit.Score, explanation.Value, 0.0f);
assertEquals(string.Format("Score based on child doc range from {0} to {1}", hit.Doc - 1 - childId, hit.Doc - 1), explanation.Description);
}
}
// Test joining in the opposite direction (parent to
// child):
// Get random query against parent documents:
Query parentQuery2;
if (Random().Next(3) == 2)
{
int fieldID = Random().Next(parentFields.Length);
parentQuery2 = new TermQuery(new Term("parent" + fieldID, parentFields[fieldID][Random().Next(parentFields[fieldID].Length)]));
}
else if (Random().Next(3) == 2)
{
BooleanQuery bq = new BooleanQuery();
parentQuery2 = bq;
int numClauses = TestUtil.NextInt(Random(), 2, 4);
bool didMust = false;
for (int clauseIDX = 0; clauseIDX < numClauses; clauseIDX++)
{
Query clause;
BooleanClause.Occur occur;
if (!didMust && Random().NextBoolean())
{
occur = Random().NextBoolean() ? BooleanClause.Occur.MUST : BooleanClause.Occur.MUST_NOT;
clause = new TermQuery(RandomParentTerm(parentFields[0]));
didMust = true;
}
else
{
occur = BooleanClause.Occur.SHOULD;
int fieldID = TestUtil.NextInt(Random(), 1, parentFields.Length - 1);
clause = new TermQuery(new Term("parent" + fieldID, parentFields[fieldID][Random().Next(parentFields[fieldID].Length)]));
}
bq.Add(clause, occur);
}
}
else
{
BooleanQuery bq = new BooleanQuery();
parentQuery2 = bq;
bq.Add(new TermQuery(RandomParentTerm(parentFields[0])), BooleanClause.Occur.MUST);
int fieldID = TestUtil.NextInt(Random(), 1, parentFields.Length - 1);
bq.Add(new TermQuery(new Term("parent" + fieldID, parentFields[fieldID][Random().Next(parentFields[fieldID].Length)])), Random().NextBoolean() ? BooleanClause.Occur.MUST : BooleanClause.Occur.MUST_NOT);
}
if (VERBOSE)
{
Console.WriteLine("\nTEST: top down: parentQuery2=" + parentQuery2);
}
// Maps parent query to child docs:
ToChildBlockJoinQuery parentJoinQuery2 = new ToChildBlockJoinQuery(parentQuery2, parentsFilter, Random().NextBoolean());
// To run against the block-join index:
Query childJoinQuery2;
// Same query as parentJoinQuery, but to run against
// the fully denormalized index (so we can compare
// results):
Query childQuery2;
// apply a filter to children
Filter childFilter2, childJoinFilter2;
if (Random().NextBoolean())
{
childQuery2 = parentQuery2;
childJoinQuery2 = parentJoinQuery2;
childFilter2 = null;
childJoinFilter2 = null;
}
else
{
Term childTerm = RandomChildTerm(childFields[0]);
if (Random().NextBoolean()) // filtered case
{
childJoinQuery2 = parentJoinQuery2;
Filter f = new QueryWrapperFilter(new TermQuery(childTerm));
childJoinFilter2 = Random().NextBoolean() ? new FixedBitSetCachingWrapperFilter(f) : f;
}
else
{
childJoinFilter2 = null;
// AND child field w/ parent query:
BooleanQuery bq = new BooleanQuery();
childJoinQuery2 = bq;
if (Random().NextBoolean())
{
bq.Add(parentJoinQuery2, BooleanClause.Occur.MUST);
bq.Add(new TermQuery(childTerm), BooleanClause.Occur.MUST);
}
else
{
bq.Add(new TermQuery(childTerm), BooleanClause.Occur.MUST);
bq.Add(parentJoinQuery2, BooleanClause.Occur.MUST);
}
}
if (Random().NextBoolean()) // filtered case
{
childQuery2 = parentQuery2;
Filter f = new QueryWrapperFilter(new TermQuery(childTerm));
childFilter2 = Random().NextBoolean() ? new FixedBitSetCachingWrapperFilter(f) : f;
}
else
{
childFilter2 = null;
BooleanQuery bq2 = new BooleanQuery();
childQuery2 = bq2;
if (Random().NextBoolean())
{
bq2.Add(parentQuery2, BooleanClause.Occur.MUST);
bq2.Add(new TermQuery(childTerm), BooleanClause.Occur.MUST);
}
else
{
bq2.Add(new TermQuery(childTerm), BooleanClause.Occur.MUST);
bq2.Add(parentQuery2, BooleanClause.Occur.MUST);
}
}
}
Sort childSort2 = GetRandomSort("child", childFields.Length);
// Search denormalized index:
if (VERBOSE)
{
Console.WriteLine("TEST: run top down query=" + childQuery2 + " filter=" + childFilter2 + " sort=" + childSort2);
}
TopDocs results2 = s.Search(childQuery2, childFilter2, r.NumDocs, childSort2);
if (VERBOSE)
{
Console.WriteLine(" " + results2.TotalHits + " totalHits:");
foreach (ScoreDoc sd in results2.ScoreDocs)
{
Document doc = s.Doc(sd.Doc);
Console.WriteLine(" childID=" + doc.Get("childID") + " parentID=" + doc.Get("parentID") + " docID=" + sd.Doc);
}
}
// Search join index:
if (VERBOSE)
{
Console.WriteLine("TEST: run top down join query=" + childJoinQuery2 + " filter=" + childJoinFilter2 + " sort=" + childSort2);
}
TopDocs joinResults2 = joinS.Search(childJoinQuery2, childJoinFilter2, joinR.NumDocs, childSort2);
if (VERBOSE)
{
Console.WriteLine(" " + joinResults2.TotalHits + " totalHits:");
foreach (ScoreDoc sd in joinResults2.ScoreDocs)
{
Document doc = joinS.Doc(sd.Doc);
Document parentDoc = GetParentDoc(joinR, parentsFilter, sd.Doc);
Console.WriteLine(" childID=" + doc.Get("childID") + " parentID=" + parentDoc.Get("parentID") + " docID=" + sd.Doc);
}
}
CompareChildHits(r, joinR, results2, joinResults2);
}
r.Dispose();
joinR.Dispose();
dir.Dispose();
joinDir.Dispose();
}
public void TestNestedSorting()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMergePolicy(NoMergePolicy.COMPOUND_FILES));
IList<Document> docs = new List<Document>();
Document document = new Document();
document.Add(new StringField("field2", "a", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "b", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "c", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("__type", "parent", Field.Store.NO));
document.Add(new StringField("field1", "a", Field.Store.NO));
docs.Add(document);
w.AddDocuments(docs);
w.Commit();
docs.Clear();
document = new Document();
document.Add(new StringField("field2", "c", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "d", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "e", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("__type", "parent", Field.Store.NO));
document.Add(new StringField("field1", "b", Field.Store.NO));
docs.Add(document);
w.AddDocuments(docs);
docs.Clear();
document = new Document();
document.Add(new StringField("field2", "e", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "f", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "g", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("__type", "parent", Field.Store.NO));
document.Add(new StringField("field1", "c", Field.Store.NO));
docs.Add(document);
w.AddDocuments(docs);
docs.Clear();
document = new Document();
document.Add(new StringField("field2", "g", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "h", Field.Store.NO));
document.Add(new StringField("filter_1", "F", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "i", Field.Store.NO));
document.Add(new StringField("filter_1", "F", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("__type", "parent", Field.Store.NO));
document.Add(new StringField("field1", "d", Field.Store.NO));
docs.Add(document);
w.AddDocuments(docs);
w.Commit();
docs.Clear();
document = new Document();
document.Add(new StringField("field2", "i", Field.Store.NO));
document.Add(new StringField("filter_1", "F", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "j", Field.Store.NO));
document.Add(new StringField("filter_1", "F", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "k", Field.Store.NO));
document.Add(new StringField("filter_1", "F", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("__type", "parent", Field.Store.NO));
document.Add(new StringField("field1", "f", Field.Store.NO));
docs.Add(document);
w.AddDocuments(docs);
docs.Clear();
document = new Document();
document.Add(new StringField("field2", "k", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "l", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "m", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("__type", "parent", Field.Store.NO));
document.Add(new StringField("field1", "g", Field.Store.NO));
docs.Add(document);
w.AddDocuments(docs);
// This doc will not be included, because it doesn't have nested docs
document = new Document();
document.Add(new StringField("__type", "parent", Field.Store.NO));
document.Add(new StringField("field1", "h", Field.Store.NO));
w.AddDocument(document);
docs.Clear();
document = new Document();
document.Add(new StringField("field2", "m", Field.Store.NO));
document.Add(new StringField("filter_1", "T", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "n", Field.Store.NO));
document.Add(new StringField("filter_1", "F", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("field2", "o", Field.Store.NO));
document.Add(new StringField("filter_1", "F", Field.Store.NO));
docs.Add(document);
document = new Document();
document.Add(new StringField("__type", "parent", Field.Store.NO));
document.Add(new StringField("field1", "i", Field.Store.NO));
docs.Add(document);
w.AddDocuments(docs);
w.Commit();
// Some garbage docs, just to check if the NestedFieldComparator can deal with this.
document = new Document();
document.Add(new StringField("fieldXXX", "x", Field.Store.NO));
w.AddDocument(document);
document = new Document();
document.Add(new StringField("fieldXXX", "x", Field.Store.NO));
w.AddDocument(document);
document = new Document();
document.Add(new StringField("fieldXXX", "x", Field.Store.NO));
w.AddDocument(document);
IndexSearcher searcher = new IndexSearcher(DirectoryReader.Open(w.w, false));
w.Dispose();
Filter parentFilter = new QueryWrapperFilter(new TermQuery(new Term("__type", "parent")));
Filter childFilter = new QueryWrapperFilter(new PrefixQuery(new Term("field2")));
ToParentBlockJoinQuery query = new ToParentBlockJoinQuery(new FilteredQuery(new MatchAllDocsQuery(), childFilter), new FixedBitSetCachingWrapperFilter(parentFilter), ScoreMode.None);
// Sort by field ascending, order first
ToParentBlockJoinSortField sortField = new ToParentBlockJoinSortField("field2", SortField.Type_e.STRING, false, Wrap(parentFilter), Wrap(childFilter));
Sort sort = new Sort(sortField);
TopFieldDocs topDocs = searcher.Search(query, 5, sort);
assertEquals(7, topDocs.TotalHits);
assertEquals(5, topDocs.ScoreDocs.Length);
assertEquals(3, topDocs.ScoreDocs[0].Doc);
assertEquals("a", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[0]).Fields[0]).Utf8ToString());
assertEquals(7, topDocs.ScoreDocs[1].Doc);
assertEquals("c", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[1]).Fields[0]).Utf8ToString());
assertEquals(11, topDocs.ScoreDocs[2].Doc);
assertEquals("e", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[2]).Fields[0]).Utf8ToString());
assertEquals(15, topDocs.ScoreDocs[3].Doc);
assertEquals("g", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[3]).Fields[0]).Utf8ToString());
assertEquals(19, topDocs.ScoreDocs[4].Doc);
assertEquals("i", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[4]).Fields[0]).Utf8ToString());
// Sort by field ascending, order last
sortField = new ToParentBlockJoinSortField("field2", SortField.Type_e.STRING, false, true, Wrap(parentFilter), Wrap(childFilter));
sort = new Sort(sortField);
topDocs = searcher.Search(query, 5, sort);
assertEquals(7, topDocs.TotalHits);
assertEquals(5, topDocs.ScoreDocs.Length);
assertEquals(3, topDocs.ScoreDocs[0].Doc);
assertEquals("c", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[0]).Fields[0]).Utf8ToString());
assertEquals(7, topDocs.ScoreDocs[1].Doc);
assertEquals("e", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[1]).Fields[0]).Utf8ToString());
assertEquals(11, topDocs.ScoreDocs[2].Doc);
assertEquals("g", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[2]).Fields[0]).Utf8ToString());
assertEquals(15, topDocs.ScoreDocs[3].Doc);
assertEquals("i", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[3]).Fields[0]).Utf8ToString());
assertEquals(19, topDocs.ScoreDocs[4].Doc);
assertEquals("k", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[4]).Fields[0]).Utf8ToString());
// Sort by field descending, order last
sortField = new ToParentBlockJoinSortField("field2", SortField.Type_e.STRING, true, Wrap(parentFilter), Wrap(childFilter));
sort = new Sort(sortField);
topDocs = searcher.Search(query, 5, sort);
assertEquals(topDocs.TotalHits, 7);
assertEquals(5, topDocs.ScoreDocs.Length);
assertEquals(28, topDocs.ScoreDocs[0].Doc);
assertEquals("o", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[0]).Fields[0]).Utf8ToString());
assertEquals(23, topDocs.ScoreDocs[1].Doc);
assertEquals("m", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[1]).Fields[0]).Utf8ToString());
assertEquals(19, topDocs.ScoreDocs[2].Doc);
assertEquals("k", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[2]).Fields[0]).Utf8ToString());
assertEquals(15, topDocs.ScoreDocs[3].Doc);
assertEquals("i", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[3]).Fields[0]).Utf8ToString());
assertEquals(11, topDocs.ScoreDocs[4].Doc);
assertEquals("g", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[4]).Fields[0]).Utf8ToString());
// Sort by field descending, order last, sort filter (filter_1:T)
childFilter = new QueryWrapperFilter(new TermQuery((new Term("filter_1", "T"))));
query = new ToParentBlockJoinQuery(new FilteredQuery(new MatchAllDocsQuery(), childFilter), new FixedBitSetCachingWrapperFilter(parentFilter), ScoreMode.None);
sortField = new ToParentBlockJoinSortField("field2", SortField.Type_e.STRING, true, Wrap(parentFilter), Wrap(childFilter));
sort = new Sort(sortField);
topDocs = searcher.Search(query, 5, sort);
assertEquals(6, topDocs.TotalHits);
assertEquals(5, topDocs.ScoreDocs.Length);
assertEquals(23, topDocs.ScoreDocs[0].Doc);
assertEquals("m", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[0]).Fields[0]).Utf8ToString());
assertEquals(28, topDocs.ScoreDocs[1].Doc);
assertEquals("m", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[1]).Fields[0]).Utf8ToString());
assertEquals(11, topDocs.ScoreDocs[2].Doc);
assertEquals("g", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[2]).Fields[0]).Utf8ToString());
assertEquals(15, topDocs.ScoreDocs[3].Doc);
assertEquals("g", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[3]).Fields[0]).Utf8ToString());
assertEquals(7, topDocs.ScoreDocs[4].Doc);
assertEquals("e", ((BytesRef)((FieldDoc)topDocs.ScoreDocs[4]).Fields[0]).Utf8ToString());
searcher.IndexReader.Dispose();
dir.Dispose();
}
protected bool Equals(ToParentBlockJoinQuery other)
{
return base.Equals(other) &&
Equals(_parentsFilter, other._parentsFilter) &&
_scoreMode == other._scoreMode &&
Equals(_origChildQuery, other._origChildQuery);
}
public override Query Rewrite(IndexReader reader)
{
Query childRewrite = _childQuery.Rewrite(reader);
if (childRewrite != _childQuery)
{
Query rewritten = new ToParentBlockJoinQuery(_origChildQuery, childRewrite, _parentsFilter, _scoreMode);
rewritten.Boost = Boost;
return rewritten;
}
return this;
}
/// <summary>
/// Returns the TopGroups for the specified
/// BlockJoinQuery. The groupValue of each GroupDocs will
/// be the parent docID for that group.
/// The number of documents within each group is calculated as minimum of <code>maxDocsPerGroup</code>
/// and number of matched child documents for that group.
/// Returns null if no groups matched.
/// </summary>
/// <param name="query"> Search query </param>
/// <param name="withinGroupSort"> Sort criteria within groups </param>
/// <param name="offset"> Parent docs offset </param>
/// <param name="maxDocsPerGroup"> Upper bound of documents per group number </param>
/// <param name="withinGroupOffset"> Offset within each group of child docs </param>
/// <param name="fillSortFields"> Specifies whether to add sort fields or not </param>
/// <returns> TopGroups for specified query </returns>
/// <exception cref="IOException"> if there is a low-level I/O error </exception>
public virtual TopGroups<int> GetTopGroups(ToParentBlockJoinQuery query, Sort withinGroupSort, int offset, int maxDocsPerGroup, int withinGroupOffset, bool fillSortFields)
{
int? slot;
if (!joinQueryID.TryGetValue(query, out slot))
{
if (totalHitCount == 0)
{
return null;
}
}
if (sortedGroups == null)
{
if (offset >= queue.Size())
{
return null;
}
sortQueue();
}
else if (offset > sortedGroups.Length)
{
return null;
}
return AccumulateGroups(slot == null ? -1 : (int)slot, offset, maxDocsPerGroup, withinGroupOffset, withinGroupSort, fillSortFields);
}
public void TestBoostBug()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, Similarity, TimeZone);
IndexReader r = w.Reader;
w.Dispose();
IndexSearcher s = NewSearcher(r);
ToParentBlockJoinQuery q = new ToParentBlockJoinQuery(new MatchAllDocsQuery(), new QueryWrapperFilter(new MatchAllDocsQuery()), ScoreMode.Avg);
QueryUtils.Check(Random(), q, s, Similarity);
s.Search(q, 10);
BooleanQuery bq = new BooleanQuery();
bq.Boost = 2f; // we boost the BQ
bq.Add(q, BooleanClause.Occur.MUST);
s.Search(bq, 10);
r.Dispose();
dir.Dispose();
}
public void TestAdvanceSingleParentNoChild()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMergePolicy(new LogDocMergePolicy()));
Document parentDoc = new Document();
parentDoc.Add(NewStringField("parent", "1", Field.Store.NO));
parentDoc.Add(NewStringField("isparent", "yes", Field.Store.NO));
w.AddDocuments(Arrays.AsList(parentDoc));
// Add another doc so scorer is not null
parentDoc = new Document();
parentDoc.Add(NewStringField("parent", "2", Field.Store.NO));
parentDoc.Add(NewStringField("isparent", "yes", Field.Store.NO));
Document childDoc = new Document();
childDoc.Add(NewStringField("child", "2", Field.Store.NO));
w.AddDocuments(Arrays.AsList(childDoc, parentDoc));
// Need single seg:
w.ForceMerge(1);
IndexReader r = w.Reader;
w.Dispose();
IndexSearcher s = NewSearcher(r);
Query tq = new TermQuery(new Term("child", "2"));
Filter parentFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("isparent", "yes"))));
ToParentBlockJoinQuery q = new ToParentBlockJoinQuery(tq, parentFilter, ScoreMode.Avg);
Weight weight = s.CreateNormalizedWeight(q);
DocIdSetIterator disi = weight.Scorer(s.IndexReader.Leaves.First(), null);
assertEquals(2, disi.Advance(0));
r.Dispose();
dir.Dispose();
}
public void TestNestedDocScoringWithDeletes()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMergePolicy(NoMergePolicy.COMPOUND_FILES));
// Cannot assert this since we use NoMergePolicy:
w.DoRandomForceMergeAssert = false;
IList<Document> docs = new List<Document>();
docs.Add(MakeJob("java", 2007));
docs.Add(MakeJob("python", 2010));
docs.Add(MakeResume("Lisa", "United Kingdom"));
w.AddDocuments(docs);
docs.Clear();
docs.Add(MakeJob("c", 1999));
docs.Add(MakeJob("ruby", 2005));
docs.Add(MakeJob("java", 2006));
docs.Add(MakeResume("Frank", "United States"));
w.AddDocuments(docs);
w.Commit();
IndexSearcher s = NewSearcher(DirectoryReader.Open(dir));
ToParentBlockJoinQuery q = new ToParentBlockJoinQuery(NumericRangeQuery.NewIntRange("year", 1990, 2010, true, true), new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("docType", "resume")))), ScoreMode.Total);
TopDocs topDocs = s.Search(q, 10);
assertEquals(2, topDocs.TotalHits);
assertEquals(6, topDocs.ScoreDocs[0].Doc);
assertEquals(3.0f, topDocs.ScoreDocs[0].Score, 0.0f);
assertEquals(2, topDocs.ScoreDocs[1].Doc);
assertEquals(2.0f, topDocs.ScoreDocs[1].Score, 0.0f);
s.IndexReader.Dispose();
w.DeleteDocuments(new Term("skill", "java"));
w.Dispose();
s = NewSearcher(DirectoryReader.Open(dir));
topDocs = s.Search(q, 10);
assertEquals(2, topDocs.TotalHits);
assertEquals(6, topDocs.ScoreDocs[0].Doc);
assertEquals(2.0f, topDocs.ScoreDocs[0].Score, 0.0f);
assertEquals(2, topDocs.ScoreDocs[1].Doc);
assertEquals(1.0f, topDocs.ScoreDocs[1].Score, 0.0f);
s.IndexReader.Dispose();
dir.Dispose();
}
/// <summary>
/// Returns the TopGroups for the specified BlockJoinQuery. The groupValue of each
/// GroupDocs will be the parent docID for that group. The number of documents within
/// each group equals to the total number of matched child documents for that group.
/// Returns null if no groups matched.
/// </summary>
/// <param name="query">Search query</param>
/// <param name="withinGroupSort">Sort criteria within groups</param>
/// <param name="offset">Parent docs offset</param>
/// <param name="withinGroupOffset">Offset within each group of child docs</param>
/// <param name="fillSortFields">Specifies whether to add sort fields or not</param>
/// <returns>TopGroups for specified query</returns>
/// <exception cref="IOException"> if there is a low-level I/O error </exception>
public virtual TopGroups<int> GetTopGroupsWithAllChildDocs(ToParentBlockJoinQuery query, Sort withinGroupSort, int offset, int withinGroupOffset, bool fillSortFields)
{
return GetTopGroups(query, withinGroupSort, offset, int.MaxValue, withinGroupOffset, fillSortFields);
}
public void TestEmptyChildFilter()
{
Directory dir = NewDirectory();
IndexWriterConfig config = new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random()));
config.SetMergePolicy(NoMergePolicy.NO_COMPOUND_FILES);
// we don't want to merge - since we rely on certain segment setup
IndexWriter w = new IndexWriter(dir, config);
IList<Document> docs = new List<Document>();
docs.Add(MakeJob("java", 2007));
docs.Add(MakeJob("python", 2010));
docs.Add(MakeResume("Lisa", "United Kingdom"));
w.AddDocuments(docs);
docs.Clear();
docs.Add(MakeJob("ruby", 2005));
docs.Add(MakeJob("java", 2006));
docs.Add(MakeResume("Frank", "United States"));
w.AddDocuments(docs);
w.Commit();
int num = AtLeast(10); // produce a segment that doesn't have a value in the docType field
for (int i = 0; i < num; i++)
{
docs.Clear();
docs.Add(MakeJob("java", 2007));
w.AddDocuments(docs);
}
IndexReader r = DirectoryReader.Open(w, Random().NextBoolean());
w.Dispose();
assertTrue(r.Leaves.size() > 1);
IndexSearcher s = new IndexSearcher(r);
Filter parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("docType", "resume"))));
BooleanQuery childQuery = new BooleanQuery();
childQuery.Add(new BooleanClause(new TermQuery(new Term("skill", "java")), BooleanClause.Occur.MUST));
childQuery.Add(new BooleanClause(NumericRangeQuery.NewIntRange("year", 2006, 2011, true, true), BooleanClause.Occur.MUST));
ToParentBlockJoinQuery childJoinQuery = new ToParentBlockJoinQuery(childQuery, parentsFilter, ScoreMode.Avg);
BooleanQuery fullQuery = new BooleanQuery();
fullQuery.Add(new BooleanClause(childJoinQuery, BooleanClause.Occur.MUST));
fullQuery.Add(new BooleanClause(new MatchAllDocsQuery(), BooleanClause.Occur.MUST));
ToParentBlockJoinCollector c = new ToParentBlockJoinCollector(Sort.RELEVANCE, 1, true, true);
s.Search(fullQuery, c);
TopGroups<int> results = c.GetTopGroups(childJoinQuery, null, 0, 10, 0, true);
assertFalse(float.IsNaN(results.MaxScore));
assertEquals(1, results.TotalGroupedHitCount);
assertEquals(1, results.Groups.Length);
IGroupDocs<int> group = results.Groups[0];
Document childDoc = s.Doc(group.ScoreDocs[0].Doc);
assertEquals("java", childDoc.Get("skill"));
assertNotNull(group.GroupValue);
Document parentDoc = s.Doc(group.GroupValue);
assertEquals("Lisa", parentDoc.Get("name"));
r.Dispose();
dir.Dispose();
}
public void TestMultiChildTypes()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, Similarity, TimeZone);
IList<Document> docs = new List<Document>();
docs.Add(MakeJob("java", 2007));
docs.Add(MakeJob("python", 2010));
docs.Add(MakeQualification("maths", 1999));
docs.Add(MakeResume("Lisa", "United Kingdom"));
w.AddDocuments(docs);
IndexReader r = w.Reader;
w.Dispose();
IndexSearcher s = NewSearcher(r);
// Create a filter that defines "parent" documents in the index - in this case resumes
Filter parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("docType", "resume"))));
// Define child document criteria (finds an example of relevant work experience)
BooleanQuery childJobQuery = new BooleanQuery();
childJobQuery.Add(new BooleanClause(new TermQuery(new Term("skill", "java")), BooleanClause.Occur.MUST));
childJobQuery.Add(new BooleanClause(NumericRangeQuery.NewIntRange("year", 2006, 2011, true, true), BooleanClause.Occur.MUST));
BooleanQuery childQualificationQuery = new BooleanQuery();
childQualificationQuery.Add(new BooleanClause(new TermQuery(new Term("qualification", "maths")), BooleanClause.Occur.MUST));
childQualificationQuery.Add(new BooleanClause(NumericRangeQuery.NewIntRange("year", 1980, 2000, true, true), BooleanClause.Occur.MUST));
// Define parent document criteria (find a resident in the UK)
Query parentQuery = new TermQuery(new Term("country", "United Kingdom"));
// Wrap the child document query to 'join' any matches
// up to corresponding parent:
ToParentBlockJoinQuery childJobJoinQuery = new ToParentBlockJoinQuery(childJobQuery, parentsFilter, ScoreMode.Avg);
ToParentBlockJoinQuery childQualificationJoinQuery = new ToParentBlockJoinQuery(childQualificationQuery, parentsFilter, ScoreMode.Avg);
// Combine the parent and nested child queries into a single query for a candidate
BooleanQuery fullQuery = new BooleanQuery();
fullQuery.Add(new BooleanClause(parentQuery, BooleanClause.Occur.MUST));
fullQuery.Add(new BooleanClause(childJobJoinQuery, BooleanClause.Occur.MUST));
fullQuery.Add(new BooleanClause(childQualificationJoinQuery, BooleanClause.Occur.MUST));
// Collects all job and qualification child docs for
// each resume hit in the top N (sorted by score):
ToParentBlockJoinCollector c = new ToParentBlockJoinCollector(Sort.RELEVANCE, 10, true, false);
s.Search(fullQuery, c);
// Examine "Job" children
TopGroups<int> jobResults = c.GetTopGroups(childJobJoinQuery, null, 0, 10, 0, true);
//assertEquals(1, results.totalHitCount);
assertEquals(1, jobResults.TotalGroupedHitCount);
assertEquals(1, jobResults.Groups.Length);
IGroupDocs<int> group = jobResults.Groups[0];
assertEquals(1, group.TotalHits);
Document childJobDoc = s.Doc(group.ScoreDocs[0].Doc);
//System.out.println(" doc=" + group.ScoreDocs[0].Doc);
assertEquals("java", childJobDoc.Get("skill"));
assertNotNull(group.GroupValue);
Document parentDoc = s.Doc(group.GroupValue);
assertEquals("Lisa", parentDoc.Get("name"));
// Now Examine qualification children
TopGroups<int> qualificationResults = c.GetTopGroups(childQualificationJoinQuery, null, 0, 10, 0, true);
assertEquals(1, qualificationResults.TotalGroupedHitCount);
assertEquals(1, qualificationResults.Groups.Length);
IGroupDocs<int> qGroup = qualificationResults.Groups[0];
assertEquals(1, qGroup.TotalHits);
Document childQualificationDoc = s.Doc(qGroup.ScoreDocs[0].Doc);
assertEquals("maths", childQualificationDoc.Get("qualification"));
assertNotNull(qGroup.GroupValue);
parentDoc = s.Doc(qGroup.GroupValue);
assertEquals("Lisa", parentDoc.Get("name"));
r.Dispose();
dir.Dispose();
}
/// <summary>
/// Returns the <see cref="TopGroups{T}"/> for the specified BlockJoinQuery. The groupValue of each
/// GroupDocs will be the parent docID for that group. The number of documents within
/// each group equals to the total number of matched child documents for that group.
/// Returns <c>null</c> if no groups matched.
/// </summary>
/// <param name="query">Search query</param>
/// <param name="withinGroupSort">Sort criteria within groups</param>
/// <param name="offset">Parent docs offset</param>
/// <param name="withinGroupOffset">Offset within each group of child docs</param>
/// <param name="fillSortFields">Specifies whether to add sort fields or not</param>
/// <returns><see cref="ITopGroups{T}"/> for specified query</returns>
/// <exception cref="IOException"> if there is a low-level I/O error </exception>
public virtual ITopGroups <int> GetTopGroupsWithAllChildDocs(ToParentBlockJoinQuery query, Sort withinGroupSort, int offset, int withinGroupOffset, bool fillSortFields)
{
return(GetTopGroups(query, withinGroupSort, offset, int.MaxValue, withinGroupOffset, fillSortFields));
}
public void TestAdvanceSingleParentSingleChild()
{
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir, Similarity, TimeZone);
Document childDoc = new Document();
childDoc.Add(NewStringField("child", "1", Field.Store.NO));
Document parentDoc = new Document();
parentDoc.Add(NewStringField("parent", "1", Field.Store.NO));
w.AddDocuments(Arrays.AsList(childDoc, parentDoc));
IndexReader r = w.Reader;
w.Dispose();
IndexSearcher s = NewSearcher(r);
Query tq = new TermQuery(new Term("child", "1"));
Filter parentFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("parent", "1"))));
ToParentBlockJoinQuery q = new ToParentBlockJoinQuery(tq, parentFilter, ScoreMode.Avg);
Weight weight = s.CreateNormalizedWeight(q);
DocIdSetIterator disi = weight.Scorer(s.IndexReader.Leaves.First(), null);
assertEquals(1, disi.Advance(1));
r.Dispose();
dir.Dispose();
}