/// <summary>
/// Appends the field.
/// </summary>
/// <param name="key">The attribute key.</param>
/// <param name="value">The attribute value.</param>
/// <param name="matchVariant">The match variant.</param>
public void AppendField(string key, string value, MatchVariant matchVariant)
{
FieldQuery fldQuery = new FieldQuery(key, value, matchVariant);
QueryNode node = new QueryNode(fldQuery);
this.AddNode(node);
}
/// <summary>
/// Gets the match variant.
/// </summary>
/// <param name="variant">The variant.</param>
/// <returns>Returns string representing match variant.</returns>
protected virtual string GetMatchVariant(MatchVariant variant)
{
string result = string.Empty;
switch (variant)
{
case MatchVariant.Exactly:
result = "=";
break;
case MatchVariant.GreaterThan:
result = ">";
break;
case MatchVariant.GreaterThanOrEqual:
result = ">=";
break;
case MatchVariant.LessThan:
result = "<";
break;
case MatchVariant.LessThanOrEqual:
result = "<=";
break;
case MatchVariant.NotEquals:
result = "!=";
break;
}
return(result);
}
/// <summary>
/// Appends the subquery.
/// </summary>
/// <param name="key">The attribute key.</param>
/// <param name="value">The attribute value.</param>
/// <param name="matchVariant">The match variant.</param>
public void AppendAttribute(string key, string value, MatchVariant matchVariant)
{
AttributeQuery query = new AttributeQuery(key, value, matchVariant);
QueryNode node = new QueryNode(query);
this.AddNode(node);
}
/// <summary>
/// Initializes a new instance of the <see cref="SubQuery"/> class.
/// </summary>
/// <param name="key">The field key.</param>
/// <param name="value">The value.</param>
/// <param name="matchVariant">The match variant.</param>
protected SubQuery(string key, string value, MatchVariant matchVariant)
{
this.Key = key;
this.Value = value;
this.MatchVariant = matchVariant;
}
/// <summary>
/// Initializes a new instance of the <see cref="FieldQuery"/> class.
/// </summary>
/// <param name="key">The field key.</param>
/// <param name="value">The value.</param>
/// <param name="matchVariant">The match variant.</param>
public FieldQuery(string key, string value, MatchVariant matchVariant)
: base(key, value, matchVariant)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="SubQuery"/> class.
/// </summary>
/// <param name="key">The field key.</param>
/// <param name="value">The value.</param>
/// <param name="matchVariant">The match variant.</param>
protected SubQuery(string key, string value, MatchVariant matchVariant)
{
this.Key = key;
this.Value = value;
this.MatchVariant = matchVariant;
}
protected virtual LuceneSearch.TermRangeQuery GetRangeQuery(string key, string value, MatchVariant variant)
{
switch (variant)
{
case MatchVariant.GreaterThan:
return new LuceneSearch.TermRangeQuery(key, value, null, false, true);
case MatchVariant.GreaterThanOrEqual:
return new LuceneSearch.TermRangeQuery(key, value, null, true, true);
case MatchVariant.LessThan:
return new LuceneSearch.TermRangeQuery(key, null, value, true, false);
case MatchVariant.LessThanOrEqual:
return new LuceneSearch.TermRangeQuery(key, null, value, true, true);
}
return null;
}
/// <summary>
/// Adds the content sub query.
/// </summary>
/// <param name="query">The boolean query.</param>
/// <param name="key">The field key.</param>
/// <param name="value">The field value.</param>
/// <param name="matchVariant">The match variant.</param>
/// <param name="condition">The condition.</param>
/// <param name="isFirst">if set to <c>true</c> [is first].</param>
private void AddContentSubQuery(LuceneSearch.BooleanQuery query, string key, string value, MatchVariant matchVariant, QueryCondition condition)
{
if (matchVariant == MatchVariant.NotEquals)
{
query.Add(new LuceneSearch.TermQuery(new Term(key, value)), LuceneSearch.Occur.MUST_NOT);
return;
}
LuceneSearch.Occur occurrence = this.GetOccur(condition);
LuceneSearch.TermRangeQuery rangeQuery = this.GetRangeQuery(key, value, matchVariant);
if (rangeQuery != null)
{
query.Add(rangeQuery, occurrence);
return;
}
string[] keywords = value.Split(' ');
if (keywords.Length > 1)
{
LuceneSearch.PhraseQuery phraseQuery = new Lucene.Net.Search.PhraseQuery();
foreach (string keyword in keywords)
{
phraseQuery.Add(new Term(key, keyword));
}
query.Add(phraseQuery, occurrence);
}
else if (matchVariant == MatchVariant.Like)
{
query.Add(new LuceneSearch.WildcardQuery(new Term(key, value + "*")), occurrence);
}
else
{
query.Add(new LuceneSearch.TermQuery(new Term(key, value)), occurrence);
}
}
/// <summary>
/// Appends the field.
/// </summary>
/// <param name="key">The attribute key.</param>
/// <param name="value">The attribute value.</param>
/// <param name="matchVariant">The match variant.</param>
public void AppendField(string key, string value, MatchVariant matchVariant)
{
FieldQuery fldQuery = new FieldQuery(key, value, matchVariant);
QueryNode node = new QueryNode(fldQuery);
this.AddNode(node);
}
/// <summary>
/// Appends the subquery.
/// </summary>
/// <param name="key">The attribute key.</param>
/// <param name="value">The attribute value.</param>
/// <param name="matchVariant">The match variant.</param>
public void AppendAttribute(string key, string value, MatchVariant matchVariant)
{
AttributeQuery query = new AttributeQuery(key, value, matchVariant);
QueryNode node = new QueryNode(query);
this.AddNode(node);
}
/// <summary>
/// Initializes a new instance of the <see cref="FieldQuery"/> class.
/// </summary>
/// <param name="key">The field key.</param>
/// <param name="value">The value.</param>
/// <param name="matchVariant">The match variant.</param>
public FieldQuery(string key, string value, MatchVariant matchVariant)
: base(key, value, matchVariant)
{
}
/// <summary>
/// Gets the match variant.
/// </summary>
/// <param name="variant">The variant.</param>
/// <returns>Returns string representing match variant.</returns>
protected virtual string GetMatchVariant(MatchVariant variant)
{
string result = string.Empty;
switch (variant)
{
case MatchVariant.Exactly:
result = "=";
break;
case MatchVariant.GreaterThan:
result = ">";
break;
case MatchVariant.GreaterThanOrEqual:
result = ">=";
break;
case MatchVariant.LessThan:
result = "<";
break;
case MatchVariant.LessThanOrEqual:
result = "<=";
break;
case MatchVariant.NotEquals:
result = "!=";
break;
}
return result;
}
protected virtual LuceneSearch.TermRangeQuery GetRangeQuery(string key, string value, MatchVariant variant)
{
switch (variant)
{
case MatchVariant.GreaterThan:
return(new LuceneSearch.TermRangeQuery(key, value, null, false, true));
case MatchVariant.GreaterThanOrEqual:
return(new LuceneSearch.TermRangeQuery(key, value, null, true, true));
case MatchVariant.LessThan:
return(new LuceneSearch.TermRangeQuery(key, null, value, true, false));
case MatchVariant.LessThanOrEqual:
return(new LuceneSearch.TermRangeQuery(key, null, value, true, true));
}
return(null);
}
/// <summary>
/// Adds the content sub query.
/// </summary>
/// <param name="query">The boolean query.</param>
/// <param name="key">The field key.</param>
/// <param name="value">The field value.</param>
/// <param name="matchVariant">The match variant.</param>
/// <param name="condition">The condition.</param>
/// <param name="isFirst">if set to <c>true</c> [is first].</param>
private void AddContentSubQuery(LuceneSearch.BooleanQuery query, string key, string value, MatchVariant matchVariant, QueryCondition condition)
{
if (matchVariant == MatchVariant.NotEquals)
{
query.Add(new LuceneSearch.TermQuery(new Term(key, value)), LuceneSearch.Occur.MUST_NOT);
return;
}
LuceneSearch.Occur occurrence = this.GetOccur(condition);
LuceneSearch.TermRangeQuery rangeQuery = this.GetRangeQuery(key, value, matchVariant);
if (rangeQuery != null)
{
query.Add(rangeQuery, occurrence);
return;
}
string[] keywords = value.Split(' ');
if (keywords.Length > 1)
{
LuceneSearch.PhraseQuery phraseQuery = new Lucene.Net.Search.PhraseQuery();
foreach (string keyword in keywords)
{
phraseQuery.Add(new Term(key, keyword));
}
query.Add(phraseQuery, occurrence);
}
else if (matchVariant == MatchVariant.Like)
{
query.Add(new LuceneSearch.WildcardQuery(new Term(key, value + "*")), occurrence);
}
else
{
query.Add(new LuceneSearch.TermQuery(new Term(key, value)), occurrence);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="AttributeQuery"/> class.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="value">The value.</param>
/// <param name="matchVariant">The match variant.</param>
public AttributeQuery(string key, string value, MatchVariant matchVariant) : base(key, value, matchVariant)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="AttributeQuery"/> class.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="value">The value.</param>
/// <param name="matchVariant">The match variant.</param>
public AttributeQuery(string key, string value, MatchVariant matchVariant) : base(key, value, matchVariant)
{
}
