/// <summary>
/// Create query restrictions used to retrieve actual data and deletions that took place at exactly given revision.
/// </summary>
private void createValidAndRemovedDataRestrictions(IAuditStrategy auditStrategy,
MiddleIdData referencedIdData, string versionsMiddleEntityName,
QueryBuilder remQb, IEnumerable <MiddleComponentData> componentData)
{
var disjoint = remQb.RootParameters.AddSubParameters("or");
var valid = disjoint.AddSubParameters("and"); // Restrictions to match all valid rows.
var removed = disjoint.AddSubParameters("and"); // Restrictions to match all rows deleted at exactly given revision.
var revisionPropertyPath = VerEntCfg.RevisionNumberPath;
var revisionTypePropName = RevisionTypePath();
// Excluding current revision, because we need to match data valid at the previous one.
createValidDataRestrictions(auditStrategy, referencedIdData, versionsMiddleEntityName, remQb, valid, false, componentData);
// ee.revision = :revision
removed.AddWhereWithNamedParam(revisionPropertyPath, "=", QueryConstants.RevisionParameter);
// e.revision = :revision
removed.AddWhereWithNamedParam(QueryConstants.ReferencedEntityAlias + "." + revisionPropertyPath, false, "=", QueryConstants.RevisionParameter);
// f.revision = :revision
removed.AddWhereWithNamedParam(QueryConstants.IndexEntityAlias + "." + revisionPropertyPath, false, "=", QueryConstants.RevisionParameter);
// ee.revision_type = DEL
removed.AddWhereWithNamedParam(revisionTypePropName, "=", QueryConstants.DelRevisionTypeParameter);
// e.revision_type = DEL
removed.AddWhereWithNamedParam(QueryConstants.ReferencedEntityAlias + "." + revisionTypePropName, false, "=", QueryConstants.DelRevisionTypeParameter);
// f.revision_type = DEL
removed.AddWhereWithNamedParam(QueryConstants.IndexEntityAlias + "." + revisionTypePropName, false, "=", QueryConstants.DelRevisionTypeParameter);
}
public OneEntityQueryGenerator(AuditEntitiesConfiguration verEntCfg,
IAuditStrategy auditStrategy,
string versionsMiddleEntityName,
MiddleIdData referencingIdData,
bool revisionTypeInId,
IEnumerable <MiddleComponentData> componentDatas)
: base(verEntCfg, referencingIdData, revisionTypeInId)
{
/*
* The query that we need to create:
* SELECT new list(ee) FROM middleEntity ee WHERE
* (only entities referenced by the association; id_ref_ing = id of the referencing entity)
* ee.originalId.id_ref_ing = :id_ref_ing AND
* (the association at revision :revision)
* --> for DefaultAuditStrategy:
* ee.revision = (SELECT max(ee2.revision) FROM middleEntity ee2
* WHERE ee2.revision <= :revision AND ee2.originalId.* = ee.originalId.*)
* --> for ValidityAuditStrategy
* ee.revision <= :revision and (ee.endRevision > :revision or ee.endRevision is null)
* AND
* (only non-deleted entities and associations)
* ee.revision_type != DEL
*/
var commonPart = commonQueryPart(versionsMiddleEntityName);
var validQuery = (QueryBuilder)commonPart.Clone();
var removedQuery = (QueryBuilder)commonPart.Clone();
createValidDataRestrictions(auditStrategy, versionsMiddleEntityName, validQuery, validQuery.RootParameters, true, componentDatas);
createValidAndRemovedDataRestrictions(auditStrategy, versionsMiddleEntityName, removedQuery, componentDatas);
_queryString = QueryToString(validQuery);
_queryRemovedString = QueryToString(removedQuery);
}
public TwoEntityOneAuditedQueryGenerator(AuditEntitiesConfiguration verEntCfg,
IAuditStrategy auditStrategy,
string versionsMiddleEntityName,
MiddleIdData referencingIdData,
MiddleIdData referencedIdData,
IEnumerable<MiddleComponentData> componentDatas)
{
this.referencingIdData = referencingIdData;
/*
* The query that we need to create:
* SELECT new list(ee, e) FROM referencedEntity e, middleEntity ee
* WHERE
* (entities referenced by the middle table; id_ref_ed = id of the referenced entity)
* ee.id_ref_ed = e.id_ref_ed AND
* (only entities referenced by the association; id_ref_ing = id of the referencing entity)
* ee.id_ref_ing = :id_ref_ing AND
*
* (the association at revision :revision)
* --> For DefaultAuditStrategy:
* ee.revision = (SELECT max(ee2.revision) FROM middleEntity ee2
* WHERE ee2.revision <= :revision AND ee2.originalId.* = ee.originalId.*)
* --> for ValidityAuditStrategy:
* ee.revision <= :revision and (ee.endRevision > :revision or ee.endRevision is null)
*
* AND
*
* (only non-deleted entities and associations)
* ee.revision_type != DEL
*/
var revisionPropertyPath = verEntCfg.RevisionNumberPath;
var originalIdPropertyName = verEntCfg.OriginalIdPropName;
var eeOriginalIdPropertyPath = "ee." + originalIdPropertyName;
// SELECT new list(ee) FROM middleEntity ee
var qb = new QueryBuilder(versionsMiddleEntityName, "ee");
qb.AddFrom(referencedIdData.EntityName, "e");
qb.AddProjection("new list", "ee, e", false, false);
// WHERE
var rootParameters = qb.RootParameters;
// ee.id_ref_ed = e.id_ref_ed
referencedIdData.PrefixedMapper.AddIdsEqualToQuery(rootParameters, eeOriginalIdPropertyPath,
referencedIdData.OriginalMapper, "e");
// ee.originalId.id_ref_ing = :id_ref_ing
referencingIdData.PrefixedMapper.AddNamedIdEqualsToQuery(rootParameters, originalIdPropertyName, true);
// (with ee association at revision :revision)
// --> based on auditStrategy (see above)
auditStrategy.AddAssociationAtRevisionRestriction(qb, revisionPropertyPath,
verEntCfg.RevisionEndFieldName, true, referencingIdData, versionsMiddleEntityName,
eeOriginalIdPropertyPath, revisionPropertyPath, originalIdPropertyName, componentDatas.ToArray());
// ee.revision_type != DEL
rootParameters.AddWhereWithNamedParam(verEntCfg.RevisionTypePropName, "!=", "delrevisiontype");
var sb = new StringBuilder();
qb.Build(sb, null);
queryString = sb.ToString();
}
public OneAuditEntityQueryGenerator(AuditEntitiesConfiguration verEntCfg,
IAuditStrategy auditStrategy,
MiddleIdData referencingIdData,
string referencedEntityName,
MiddleIdData referencedIdData,
bool revisionTypeInId)
: base(verEntCfg, referencingIdData, revisionTypeInId)
{
/*
* The valid query that we need to create:
* SELECT new list(e) FROM versionsReferencedEntity e
* WHERE
* (only entities referenced by the association; id_ref_ing = id of the referencing entity)
* e.id_ref_ing = :id_ref_ing AND
* (selecting e entities at revision :revision)
* --> for DefaultAuditStrategy:
* e.revision = (SELECT max(e2.revision) FROM versionsReferencedEntity e2
* WHERE e2.revision <= :revision AND e2.id = e.id)
* --> for ValidityAuditStrategy
* e.revision <= :revision and (e.endRevision > :revision or e.endRevision is null)
* AND
* (only non-deleted entities)
* e.revision_type != DEL
*/
var commonPart = commonQueryPart(verEntCfg.GetAuditEntityName(referencedEntityName));
var validQuery = (QueryBuilder)commonPart.Clone();
var removedQuery = (QueryBuilder)commonPart.Clone();
createValidDataRestrictions(auditStrategy, referencedIdData, validQuery, validQuery.RootParameters);
createValidAndRemovedDataRestrictions(auditStrategy, referencedIdData, removedQuery);
_queryString = QueryToString(validQuery);
_queryRemovedString = QueryToString(removedQuery);
}
private void createValidDataRestrictions(IAuditStrategy auditStrategy, MiddleIdData referencedIdData,
String versionsMiddleEntityName, QueryBuilder qb, Parameters rootParameters,
bool inclusive, IEnumerable <MiddleComponentData> componentData)
{
var revisionPropertyPath = VerEntCfg.RevisionNumberPath;
var originalIdPropertyName = VerEntCfg.OriginalIdPropName;
var eeOriginalIdPropertyPath = QueryConstants.MiddleEntityAlias + "." + originalIdPropertyName;
var revisionTypePropName = RevisionTypePath();
// (selecting e entities at revision :revision)
// --> based on auditStrategy (see above)
auditStrategy.AddEntityAtRevisionRestriction(qb, rootParameters,
QueryConstants.ReferencedEntityAlias + "." + revisionPropertyPath,
QueryConstants.ReferencedEntityAlias + "." +
VerEntCfg.RevisionEndFieldName, false,
referencedIdData, revisionPropertyPath, originalIdPropertyName,
QueryConstants.ReferencedEntityAlias,
QueryConstants.ReferencedEntityAliasDefAudStr);
// (with ee association at revision :revision)
// --> based on auditStrategy (see above)
auditStrategy.AddAssociationAtRevisionRestriction(qb, rootParameters, revisionPropertyPath,
VerEntCfg.RevisionEndFieldName, true, ReferencingIdData,
versionsMiddleEntityName,
eeOriginalIdPropertyPath, revisionPropertyPath,
originalIdPropertyName, QueryConstants.MiddleEntityAlias, inclusive,
componentData.ToArray());
// ee.revision_type != DEL
rootParameters.AddWhereWithNamedParam(revisionTypePropName, "!=", QueryConstants.DelRevisionTypeParameter);
// e.revision_type != DEL
rootParameters.AddWhereWithNamedParam(QueryConstants.ReferencedEntityAlias + "." + revisionTypePropName, false, "!=", QueryConstants.DelRevisionTypeParameter);
}
public static void AddAssociationAtRevision(QueryBuilder qb, Parameters rootParameters,
MiddleIdData referencingIdData, String versionsMiddleEntityName,
String eeOriginalIdPropertyPath, String revisionPropertyPath,
String originalIdPropertyName, IEnumerable <MiddleComponentData> componentDatas)
{
// SELECT max(ee2.revision) FROM middleEntity ee2
QueryBuilder maxEeRevQb = qb.NewSubQueryBuilder(versionsMiddleEntityName, "ee2");
maxEeRevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
Parameters maxEeRevQbParameters = maxEeRevQb.RootParameters;
// ee2.revision <= :revision
maxEeRevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, "<=", "revision");
// ee2.originalId.* = ee.originalId.*
String ee2OriginalIdPropertyPath = "ee2." + originalIdPropertyName;
referencingIdData.PrefixedMapper.AddIdsEqualToQuery(maxEeRevQbParameters, eeOriginalIdPropertyPath, ee2OriginalIdPropertyPath);
foreach (MiddleComponentData componentData in componentDatas)
{
componentData.ComponentMapper.AddMiddleEqualToQuery(maxEeRevQbParameters, eeOriginalIdPropertyPath, ee2OriginalIdPropertyPath);
}
// ee.revision = (SELECT max(...) ...)
rootParameters.AddWhere(revisionPropertyPath, "=", maxEeRevQb);
}
/// <summary>
/// Compute common part for both queries.
/// </summary>
private QueryBuilder commonQueryPart(MiddleIdData referencedIdData, MiddleIdData indexIdData,
string versionsMiddleEntityName, string originalIdPropertyName)
{
var eeOriginalIdPropertyPath = QueryConstants.MiddleEntityAlias + "." + originalIdPropertyName;
// SELECT new list(ee) FROM middleEntity ee
var qb = new QueryBuilder(versionsMiddleEntityName, QueryConstants.MiddleEntityAlias);
qb.AddFrom(referencedIdData.AuditEntityName, QueryConstants.ReferencedEntityAlias, false);
qb.AddFrom(indexIdData.AuditEntityName, QueryConstants.IndexEntityAlias, false);
qb.AddProjection("new list", QueryConstants.MiddleEntityAlias + ", "
+ QueryConstants.ReferencedEntityAlias + ", "
+ QueryConstants.IndexEntityAlias, null, false);
// WHERE
var rootParameters = qb.RootParameters;
// ee.id_ref_ed = e.id_ref_ed
referencedIdData.PrefixedMapper.AddIdsEqualToQuery(rootParameters, eeOriginalIdPropertyPath,
referencedIdData.OriginalMapper, QueryConstants.ReferencedEntityAlias + "." + originalIdPropertyName);
// ee.id_ref_ind = f.id_ref_ind
indexIdData.PrefixedMapper.AddIdsEqualToQuery(rootParameters, eeOriginalIdPropertyPath,
indexIdData.OriginalMapper, QueryConstants.IndexEntityAlias + "." + originalIdPropertyName);
// ee.originalId.id_ref_ing = :id_ref_ing
ReferencingIdData.PrefixedMapper.AddNamedIdEqualsToQuery(rootParameters, originalIdPropertyName, true);
return(qb);
}
protected AbstractRelationQueryGenerator(AuditEntitiesConfiguration verEntCfg,
MiddleIdData referencingIdData,
bool revisionTypeInId)
{
VerEntCfg = verEntCfg;
ReferencingIdData = referencingIdData;
_revisionTypeInId = revisionTypeInId;
}
public OneEntityQueryGenerator(AuditEntitiesConfiguration verEntCfg,
String versionsMiddleEntityName,
MiddleIdData referencingIdData,
IEnumerable <MiddleComponentData> componentDatas)
{
this._referencingIdData = referencingIdData;
/*
* The query that we need to create:
* SELECT new list(ee) FROM middleEntity ee WHERE
* (only entities referenced by the association; id_ref_ing = id of the referencing entity)
* ee.originalId.id_ref_ing = :id_ref_ing AND
* (the association at revision :revision)
* ee.revision = (SELECT max(ee2.revision) FROM middleEntity ee2
* WHERE ee2.revision <= :revision AND ee2.originalId.* = ee.originalId.*) AND
* (only non-deleted entities and associations)
* ee.revision_type != DEL
*/
String revisionPropertyPath = verEntCfg.RevisionNumberPath;
String originalIdPropertyName = verEntCfg.OriginalIdPropName;
// SELECT new list(ee) FROM middleEntity ee
QueryBuilder qb = new QueryBuilder(versionsMiddleEntityName, "ee");
qb.AddProjection("new list", "ee", false, false);
// WHERE
Parameters rootParameters = qb.RootParameters;
// ee.originalId.id_ref_ing = :id_ref_ing
referencingIdData.PrefixedMapper.AddNamedIdEqualsToQuery(rootParameters, originalIdPropertyName, true);
// SELECT max(ee2.revision) FROM middleEntity ee2
QueryBuilder maxRevQb = qb.NewSubQueryBuilder(versionsMiddleEntityName, "ee2");
maxRevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
Parameters maxRevQbParameters = maxRevQb.RootParameters;
// ee2.revision <= :revision
maxRevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, "<=", "revision");
// ee2.originalId.* = ee.originalId.*
String eeOriginalIdPropertyPath = "ee." + originalIdPropertyName;
String ee2OriginalIdPropertyPath = "ee2." + originalIdPropertyName;
referencingIdData.PrefixedMapper.AddIdsEqualToQuery(maxRevQbParameters, eeOriginalIdPropertyPath, ee2OriginalIdPropertyPath);
foreach (MiddleComponentData componentData in componentDatas)
{
componentData.ComponentMapper.AddMiddleEqualToQuery(maxRevQbParameters, eeOriginalIdPropertyPath, ee2OriginalIdPropertyPath);
}
// ee.revision = (SELECT max(...) ...)
rootParameters.AddWhere(revisionPropertyPath, "=", maxRevQb);
// ee.revision_type != DEL
rootParameters.AddWhereWithNamedParam(verEntCfg.RevisionTypePropName, "!=", "delrevisiontype");
StringBuilder sb = new StringBuilder();
qb.Build(sb, EmptyDictionary <String, object> .Instance);
_queryString = sb.ToString();
}
protected override void FillResult(IList result)
{
/*
* The query that we need to create:
* SELECT new list(e) FROM versionsReferencedEntity e
* WHERE
* (all specified conditions, transformed, on the "e" entity) AND
* (selecting e entities at revision :revision)
* --> for DefaultAuditStrategy:
* e.revision = (SELECT max(e2.revision) FROM versionsReferencedEntity e2
* WHERE e2.revision <= :revision AND e2.id = e.id)
*
* --> for ValidityAuditStrategy:
* e.revision <= :revision and (e.endRevision > :revision or e.endRevision is null)
*
* AND
* (only non-deleted entities)
* e.revision_type != DEL
*/
var verEntCfg = VerCfg.AuditEntCfg;
var revisionPropertyPath = verEntCfg.RevisionNumberPath;
var originalIdPropertyName = verEntCfg.OriginalIdPropName;
var referencedIdData = new MiddleIdData(verEntCfg, VerCfg.EntCfg[EntityName].IdMappingData,
null, EntityName, VerCfg.EntCfg.IsVersioned(EntityName));
// (selecting e entities at revision :revision)
// --> based on auditStrategy (see above)
VerCfg.GlobalCfg.AuditStrategy.AddEntityAtRevisionRestriction(QueryBuilder, QueryBuilder.RootParameters, revisionPropertyPath,
verEntCfg.RevisionEndFieldName, true, referencedIdData,
revisionPropertyPath, originalIdPropertyName, QueryConstants.ReferencedEntityAlias, QueryConstants.ReferencedEntityAliasDefAudStr);
// e.revision_type != DEL
if (!_includeDeletions)
{
QueryBuilder.RootParameters.AddWhereWithParam(verEntCfg.RevisionTypePropName, "<>", RevisionType.Deleted);
}
// all specified conditions
foreach (var criterion in Criterions)
{
criterion.AddToQuery(VerCfg, VersionsReader, EntityName, QueryBuilder, QueryBuilder.RootParameters);
}
foreach (var associationQuery in AssociationQueries)
{
associationQuery.AddCriterionsToQuery(VersionsReader);
}
var query = BuildQuery();
// add named parameter (only used for ValidAuditTimeStrategy and association queries)
if (query.NamedParameters.Contains(QueryConstants.RevisionParameter))
{
query.SetParameter(QueryConstants.RevisionParameter, _revision);
}
ApplyProjections(query, result, _revision);
}
public OneAuditEntityQueryGenerator(GlobalConfiguration globalCfg, AuditEntitiesConfiguration verEntCfg,
MiddleIdData referencingIdData, String referencedEntityName,
IIdMapper referencedIdMapper)
{
this.referencingIdData = referencingIdData;
/*
* The query that we need to create:
* SELECT new list(e) FROM versionsReferencedEntity e
* WHERE
* (only entities referenced by the association; id_ref_ing = id of the referencing entity)
* e.id_ref_ing = :id_ref_ing AND
* (selecting e entities at revision :revision)
* e.revision = (SELECT max(e2.revision) FROM versionsReferencedEntity e2
* WHERE e2.revision <= :revision AND e2.id = e.id) AND
* (only non-deleted entities)
* e.revision_type != DEL
*/
String revisionPropertyPath = verEntCfg.RevisionNumberPath;
String originalIdPropertyName = verEntCfg.OriginalIdPropName;
String versionsReferencedEntityName = verEntCfg.GetAuditEntityName(referencedEntityName);
// SELECT new list(e) FROM versionsEntity e
QueryBuilder qb = new QueryBuilder(versionsReferencedEntityName, "e");
qb.AddProjection("new list", "e", false, false);
// WHERE
Parameters rootParameters = qb.RootParameters;
// e.id_ref_ed = :id_ref_ed
referencingIdData.PrefixedMapper.AddNamedIdEqualsToQuery(rootParameters, null, true);
// SELECT max(e.revision) FROM versionsReferencedEntity e2
QueryBuilder maxERevQb = qb.NewSubQueryBuilder(versionsReferencedEntityName, "e2");
maxERevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
Parameters maxERevQbParameters = maxERevQb.RootParameters;
// e2.revision <= :revision
maxERevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, "<=", "revision");
// e2.id = e.id
referencedIdMapper.AddIdsEqualToQuery(maxERevQbParameters,
"e." + originalIdPropertyName, "e2." + originalIdPropertyName);
// e.revision = (SELECT max(...) ...)
rootParameters.AddWhere(revisionPropertyPath, false, globalCfg.getCorrelatedSubqueryOperator(), maxERevQb);
// e.revision_type != DEL
rootParameters.AddWhereWithNamedParam(verEntCfg.RevisionTypePropName, false, "!=", "delrevisiontype");
StringBuilder sb = new StringBuilder();
qb.Build(sb, EmptyDictionary <String, object> .Instance);
queryString = sb.ToString();
}
public QueryGeneratorBuilder(GlobalConfiguration globalCfg, AuditEntitiesConfiguration verEntCfg,
MiddleIdData referencingIdData, String auditMiddleEntityName)
{
this._globalCfg = globalCfg;
this._verEntCfg = verEntCfg;
this._referencingIdData = referencingIdData;
this._auditMiddleEntityName = auditMiddleEntityName;
_idDatas = new List <MiddleIdData>();
}
/**
*
* @param value Value, which should be mapped to the middle-table, either as a relation to another entity,
* or as a simple value.
* @param xmlMapping If not <code>null</code>, xml mapping for this value is added to this element.
* @param queryGeneratorBuilder In case <code>value</code> is a relation to another entity, information about it
* should be added to the given.
* @param prefix Prefix for proeprty names of related entities identifiers.
* @param joinColumns Names of columns to use in the xml mapping, if this array isn't null and has any elements.
* @return Data for mapping this component.
*/
//@SuppressWarnings({"unchecked"})
private MiddleComponentData AddValueToMiddleTable(IValue value, XmlElement xmlMapping,
QueryGeneratorBuilder queryGeneratorBuilder,
String prefix, JoinColumnAttribute[] joinColumns)
{
IType type = value.Type;
if (type is ManyToOneType)
{
String prefixRelated = prefix + "_";
String referencedEntityName = MappingTools.getReferencedEntityName(value);
IdMappingData referencedIdMapping = mainGenerator.GetReferencedIdMappingData(referencingEntityName,
referencedEntityName, propertyAuditingData, true);
// Adding related-entity (in this case: the referenced entities id) id mapping to the xml only if the
// relation isn't inverse (so when <code>xmlMapping</code> is not null).
if (xmlMapping != null)
{
AddRelatedToXmlMapping(xmlMapping, prefixRelated,
joinColumns != null && joinColumns.Length > 0
? MetadataTools.GetColumnNameEnumerator(joinColumns)
: MetadataTools.GetColumnNameEnumerator(value.ColumnIterator.GetEnumerator()),
referencedIdMapping);
}
// Storing the id data of the referenced entity: original mapper, prefixed mapper and entity name.
MiddleIdData referencedIdData = CreateMiddleIdData(referencedIdMapping,
prefixRelated, referencedEntityName);
// And adding it to the generator builder.
queryGeneratorBuilder.AddRelation(referencedIdData);
return(new MiddleComponentData(new MiddleRelatedComponentMapper(referencedIdData),
queryGeneratorBuilder.CurrentIndex));
}
else
{
// Last but one parameter: collection components are always insertable
bool mapped = mainGenerator.BasicMetadataGenerator.AddBasic(xmlMapping,
new PropertyAuditingData(prefix, "field", ModificationStore.FULL, RelationTargetAuditMode.AUDITED, null, null, false),
value, null, true, true);
if (mapped)
{
// Simple values are always stored in the first item of the array returned by the query generator.
return(new MiddleComponentData(new MiddleSimpleComponentMapper(mainGenerator.VerEntCfg, prefix), 0));
}
else
{
mainGenerator.ThrowUnsupportedTypeException(type, referencingEntityName, propertyName);
// Impossible to get here.
throw new AssertionFailure();
}
}
}
public QueryGeneratorBuilder(AuditEntitiesConfiguration verEntCfg, IAuditStrategy auditStrategy,
MiddleIdData referencingIdData, string auditMiddleEntityName, bool revisionTypeInId)
{
_verEntCfg = verEntCfg;
_auditStrategy = auditStrategy;
_referencingIdData = referencingIdData;
_auditMiddleEntityName = auditMiddleEntityName;
_revisionTypeInId = revisionTypeInId;
_idDatas = new List <MiddleIdData>();
}
public TwoEntityOneAuditedQueryGenerator(
AuditEntitiesConfiguration verEntCfg,
String versionsMiddleEntityName,
MiddleIdData referencingIdData,
MiddleIdData referencedIdData,
IEnumerable <MiddleComponentData> componentDatas)
{
this.referencingIdData = referencingIdData;
/*
* The query that we need to create:
* SELECT new list(ee, e) FROM referencedEntity e, middleEntity ee
* WHERE
* (entities referenced by the middle table; id_ref_ed = id of the referenced entity)
* ee.id_ref_ed = e.id_ref_ed AND
* (only entities referenced by the association; id_ref_ing = id of the referencing entity)
* ee.id_ref_ing = :id_ref_ing AND
* (the association at revision :revision)
* ee.revision = (SELECT max(ee2.revision) FROM middleEntity ee2
* WHERE ee2.revision <= :revision AND ee2.originalId.* = ee.originalId.*) AND
* (only non-deleted entities and associations)
* ee.revision_type != DEL
*/
String revisionPropertyPath = verEntCfg.RevisionNumberPath;
String originalIdPropertyName = verEntCfg.OriginalIdPropName;
String eeOriginalIdPropertyPath = "ee." + originalIdPropertyName;
// SELECT new list(ee) FROM middleEntity ee
QueryBuilder qb = new QueryBuilder(versionsMiddleEntityName, "ee");
qb.AddFrom(referencedIdData.EntityName, "e");
qb.AddProjection("new list", "ee, e", false, false);
// WHERE
Parameters rootParameters = qb.RootParameters;
// ee.id_ref_ed = e.id_ref_ed
referencedIdData.PrefixedMapper.AddIdsEqualToQuery(rootParameters, eeOriginalIdPropertyPath,
referencedIdData.OriginalMapper, "e");
// ee.originalId.id_ref_ing = :id_ref_ing
referencingIdData.PrefixedMapper.AddNamedIdEqualsToQuery(rootParameters, originalIdPropertyName, true);
// ee.revision = (SELECT max(...) ...)
QueryGeneratorTools.AddAssociationAtRevision(qb, rootParameters, referencingIdData, versionsMiddleEntityName,
eeOriginalIdPropertyPath, revisionPropertyPath, originalIdPropertyName, componentDatas);
// ee.revision_type != DEL
rootParameters.AddWhereWithNamedParam(verEntCfg.RevisionTypePropName, "!=", "delrevisiontype");
StringBuilder sb = new StringBuilder();
qb.Build(sb, EmptyDictionary <String, Object> .Instance);
queryString = sb.ToString();
}
/// <summary>
/// Creates query restrictions used to retrieve only actual data.
/// </summary>
private void createValidDataRestrictions(IAuditStrategy auditStrategy,
MiddleIdData referencedIdData, QueryBuilder qb, Parameters rootParameters)
{
var revisionPropertyPath = VerEntCfg.RevisionNumberPath;
// (selecting e entities at revision :revision)
// --> based on auditStrategy (see above)
auditStrategy.AddEntityAtRevisionRestriction(qb, rootParameters, revisionPropertyPath, VerEntCfg.RevisionEndFieldName, true,
referencedIdData, revisionPropertyPath, VerEntCfg.OriginalIdPropName, QueryConstants.ReferencedEntityAlias, QueryConstants.ReferencedEntityAliasDefAudStr);
// e.revision_type != DEL
rootParameters.AddWhereWithNamedParam(RevisionTypePath(), false, "!=", QueryConstants.DelRevisionTypeParameter);
}
public OneAuditEntityQueryGenerator(GlobalConfiguration globalCfg, AuditEntitiesConfiguration verEntCfg,
MiddleIdData referencingIdData, String referencedEntityName,
IIdMapper referencedIdMapper)
{
this.referencingIdData = referencingIdData;
/*
* The query that we need to create:
* SELECT new list(e) FROM versionsReferencedEntity e
* WHERE
* (only entities referenced by the association; id_ref_ing = id of the referencing entity)
* e.id_ref_ing = :id_ref_ing AND
* (selecting e entities at revision :revision)
* e.revision = (SELECT max(e2.revision) FROM versionsReferencedEntity e2
* WHERE e2.revision <= :revision AND e2.id = e.id) AND
* (only non-deleted entities)
* e.revision_type != DEL
*/
String revisionPropertyPath = verEntCfg.RevisionNumberPath;
String originalIdPropertyName = verEntCfg.OriginalIdPropName;
String versionsReferencedEntityName = verEntCfg.GetAuditEntityName(referencedEntityName);
// SELECT new list(e) FROM versionsEntity e
QueryBuilder qb = new QueryBuilder(versionsReferencedEntityName, "e");
qb.AddProjection("new list", "e", false, false);
// WHERE
Parameters rootParameters = qb.RootParameters;
// e.id_ref_ed = :id_ref_ed
referencingIdData.PrefixedMapper.AddNamedIdEqualsToQuery(rootParameters, null, true);
// SELECT max(e.revision) FROM versionsReferencedEntity e2
QueryBuilder maxERevQb = qb.NewSubQueryBuilder(versionsReferencedEntityName, "e2");
maxERevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
Parameters maxERevQbParameters = maxERevQb.RootParameters;
// e2.revision <= :revision
maxERevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, "<=", "revision");
// e2.id = e.id
referencedIdMapper.AddIdsEqualToQuery(maxERevQbParameters,
"e." + originalIdPropertyName, "e2." + originalIdPropertyName);
// e.revision = (SELECT max(...) ...)
rootParameters.AddWhere(revisionPropertyPath, false, globalCfg.getCorrelatedSubqueryOperator(), maxERevQb);
// e.revision_type != DEL
rootParameters.AddWhereWithNamedParam(verEntCfg.RevisionTypePropName, false, "!=", "delrevisiontype");
StringBuilder sb = new StringBuilder();
qb.Build(sb, EmptyDictionary<String, object>.Instance);
queryString = sb.ToString();
}
public OneEntityQueryGenerator(AuditEntitiesConfiguration verEntCfg,
String versionsMiddleEntityName,
MiddleIdData referencingIdData,
IEnumerable<MiddleComponentData> componentDatas)
{
this._referencingIdData = referencingIdData;
/*
* The query that we need to create:
* SELECT new list(ee) FROM middleEntity ee WHERE
* (only entities referenced by the association; id_ref_ing = id of the referencing entity)
* ee.originalId.id_ref_ing = :id_ref_ing AND
* (the association at revision :revision)
* ee.revision = (SELECT max(ee2.revision) FROM middleEntity ee2
* WHERE ee2.revision <= :revision AND ee2.originalId.* = ee.originalId.*) AND
* (only non-deleted entities and associations)
* ee.revision_type != DEL
*/
String revisionPropertyPath = verEntCfg.RevisionNumberPath;
String originalIdPropertyName = verEntCfg.OriginalIdPropName;
// SELECT new list(ee) FROM middleEntity ee
QueryBuilder qb = new QueryBuilder(versionsMiddleEntityName, "ee");
qb.AddProjection("new list", "ee", false, false);
// WHERE
Parameters rootParameters = qb.RootParameters;
// ee.originalId.id_ref_ing = :id_ref_ing
referencingIdData.PrefixedMapper.AddNamedIdEqualsToQuery(rootParameters, originalIdPropertyName, true);
// SELECT max(ee2.revision) FROM middleEntity ee2
QueryBuilder maxRevQb = qb.NewSubQueryBuilder(versionsMiddleEntityName, "ee2");
maxRevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
Parameters maxRevQbParameters = maxRevQb.RootParameters;
// ee2.revision <= :revision
maxRevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, "<=", "revision");
// ee2.originalId.* = ee.originalId.*
String eeOriginalIdPropertyPath = "ee." + originalIdPropertyName;
String ee2OriginalIdPropertyPath = "ee2." + originalIdPropertyName;
referencingIdData.PrefixedMapper.AddIdsEqualToQuery(maxRevQbParameters, eeOriginalIdPropertyPath, ee2OriginalIdPropertyPath);
foreach (MiddleComponentData componentData in componentDatas) {
componentData.ComponentMapper.AddMiddleEqualToQuery(maxRevQbParameters, eeOriginalIdPropertyPath, ee2OriginalIdPropertyPath);
}
// ee.revision = (SELECT max(...) ...)
rootParameters.AddWhere(revisionPropertyPath, "=", maxRevQb);
// ee.revision_type != DEL
rootParameters.AddWhereWithNamedParam(verEntCfg.RevisionTypePropName, "!=", "delrevisiontype");
StringBuilder sb = new StringBuilder();
qb.Build(sb, EmptyDictionary<String, object>.Instance);
_queryString = sb.ToString();
}
public TwoEntityOneAuditedQueryGenerator(
AuditEntitiesConfiguration verEntCfg,
String versionsMiddleEntityName,
MiddleIdData referencingIdData,
MiddleIdData referencedIdData,
IEnumerable<MiddleComponentData> componentDatas)
{
this.referencingIdData = referencingIdData;
/*
* The query that we need to create:
* SELECT new list(ee, e) FROM referencedEntity e, middleEntity ee
* WHERE
* (entities referenced by the middle table; id_ref_ed = id of the referenced entity)
* ee.id_ref_ed = e.id_ref_ed AND
* (only entities referenced by the association; id_ref_ing = id of the referencing entity)
* ee.id_ref_ing = :id_ref_ing AND
* (the association at revision :revision)
* ee.revision = (SELECT max(ee2.revision) FROM middleEntity ee2
* WHERE ee2.revision <= :revision AND ee2.originalId.* = ee.originalId.*) AND
* (only non-deleted entities and associations)
* ee.revision_type != DEL
*/
String revisionPropertyPath = verEntCfg.RevisionNumberPath;
String originalIdPropertyName = verEntCfg.OriginalIdPropName;
String eeOriginalIdPropertyPath = "ee." + originalIdPropertyName;
// SELECT new list(ee) FROM middleEntity ee
QueryBuilder qb = new QueryBuilder(versionsMiddleEntityName, "ee");
qb.AddFrom(referencedIdData.EntityName, "e");
qb.AddProjection("new list", "ee, e", false, false);
// WHERE
Parameters rootParameters = qb.RootParameters;
// ee.id_ref_ed = e.id_ref_ed
referencedIdData.PrefixedMapper.AddIdsEqualToQuery(rootParameters, eeOriginalIdPropertyPath,
referencedIdData.OriginalMapper, "e");
// ee.originalId.id_ref_ing = :id_ref_ing
referencingIdData.PrefixedMapper.AddNamedIdEqualsToQuery(rootParameters, originalIdPropertyName, true);
// ee.revision = (SELECT max(...) ...)
QueryGeneratorTools.AddAssociationAtRevision(qb, rootParameters, referencingIdData, versionsMiddleEntityName,
eeOriginalIdPropertyPath, revisionPropertyPath, originalIdPropertyName, componentDatas);
// ee.revision_type != DEL
rootParameters.AddWhereWithNamedParam(verEntCfg.RevisionTypePropName, "!=", "delrevisiontype");
StringBuilder sb = new StringBuilder();
qb.Build(sb, EmptyDictionary<String, Object>.Instance);
queryString = sb.ToString();
}
public void AddCriterionsToQuery(IAuditReaderImplementor versionsReader)
{
if (hasCriterions() || hasOrders() || hasProjections())
{
if (_auditConfiguration.EntCfg.IsVersioned(_entityName))
{
var verEntCfg = _auditConfiguration.AuditEntCfg;
var auditEntityName = verEntCfg.GetAuditEntityName(_entityName);
_queryBuilder.AddFrom(auditEntityName, _alias, false);
// owner.reference_id = target.originalId.Id
var originalIdPropertyName = verEntCfg.OriginalIdPropName;
var idMapperTarget = _auditConfiguration.EntCfg[_entityName].IdMapper;
var prefix = _alias + "." + originalIdPropertyName;
_ownerAssociationIdMapper.AddIdsEqualToQuery(_queryBuilder.RootParameters, _ownerAlias, idMapperTarget, prefix);
//filter reference of target entity
var revisionPropertyPath = verEntCfg.RevisionNumberPath;
var referencedIdData = new MiddleIdData(
verEntCfg,
_auditConfiguration.EntCfg[_entityName].IdMappingData,
prefix: null,
_entityName,
_auditConfiguration.EntCfg.IsVersioned(_entityName));
_auditConfiguration.GlobalCfg.AuditStrategy.AddEntityAtRevisionRestriction(_queryBuilder, _parameters, revisionPropertyPath, verEntCfg.RevisionEndFieldName, true, referencedIdData, revisionPropertyPath, originalIdPropertyName, _alias, _queryBuilder.GenerateAlias());
}
else
{
_queryBuilder.AddFrom(_entityName, _alias, false);
//owner.reference_id = target.id
var idMapperTarget = _auditConfiguration.EntCfg.GetNotVersionEntityConfiguration(_entityName).IdMapper;
_ownerAssociationIdMapper.AddIdsEqualToQuery(_queryBuilder.RootParameters, _ownerAlias, idMapperTarget, _alias);
}
foreach (var criterion in _criterions)
{
criterion.AddToQuery(_auditConfiguration, versionsReader, _entityName, _queryBuilder, _parameters);
}
foreach (var sub in _associationQueries)
{
sub.AddCriterionsToQuery(versionsReader);
}
}
}
public static void AddEntityAtRevision(GlobalConfiguration globalCfg, QueryBuilder qb, Parameters rootParameters,
MiddleIdData idData, String revisionPropertyPath, String originalIdPropertyName,
String alias1, String alias2)
{
// SELECT max(e.revision) FROM versionsReferencedEntity e2
QueryBuilder maxERevQb = qb.NewSubQueryBuilder(idData.AuditEntityName, alias2);
maxERevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
Parameters maxERevQbParameters = maxERevQb.RootParameters;
// e2.revision <= :revision
maxERevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, "<=", "revision");
// e2.id_ref_ed = e.id_ref_ed
idData.OriginalMapper.AddIdsEqualToQuery(maxERevQbParameters,
alias1 + "." + originalIdPropertyName, alias2 +"." + originalIdPropertyName);
// e.revision = (SELECT max(...) ...)
rootParameters.AddWhere("e." + revisionPropertyPath, false, globalCfg.getCorrelatedSubqueryOperator(), maxERevQb);
}
public override IEnumerable <TEntity> Results()
{
/*
* The query that should be executed in the versions table:
* SELECT e FROM ent_ver e
* WHERE
* (all specified conditions, transformed, on the "e" entity) AND
* (selecting e entities at revision :revision)
* --> for DefaultAuditStrategy:
* e.revision = (SELECT max(e2.revision) FROM versionsReferencedEntity e2
* WHERE e2.revision <= :revision AND e2.id = e.id)
*
* --> for ValidityAuditStrategy:
* e.revision <= :revision and (e.endRevision > :revision or e.endRevision is null)
*
* AND
* (only non-deleted entities)
* e.revision_type != DEL
*/
var verEntCfg = AuditConfiguration.AuditEntCfg;
var revisionPropertyPath = verEntCfg.RevisionNumberPath;
var originalIdPropertyName = verEntCfg.OriginalIdPropName;
var referencedIdData = new MiddleIdData(verEntCfg,
AuditConfiguration.EntCfg[EntityName].IdMappingData,
prefix: null,
EntityName,
AuditConfiguration.EntCfg.IsVersioned(EntityName));
// (selecting e entities at revision :revision)
// --> based on auditStrategy (see above)
AuditConfiguration.GlobalCfg.AuditStrategy.AddEntityAtRevisionRestriction(QueryBuilder, QueryBuilder.RootParameters, revisionPropertyPath,
verEntCfg.RevisionEndFieldName, true, referencedIdData,
revisionPropertyPath, originalIdPropertyName, QueryConstants.ReferencedEntityAlias, QueryConstants.ReferencedEntityAliasDefAudStr);
SetIncludeDeletationClause();
AddCriterions();
// the result of BuildAndExecuteQuery is always the name-value pair of EntityMode.Map
return(from versionsEntity in BuildAndExecuteQuery <IDictionary>()
select(TEntity) EntityInstantiator.CreateInstanceFromVersionsEntity(EntityName, versionsEntity, _revision));
}
public static void AddEntityAtRevision(GlobalConfiguration globalCfg, QueryBuilder qb, Parameters rootParameters,
MiddleIdData idData, String revisionPropertyPath, String originalIdPropertyName,
String alias1, String alias2)
{
// SELECT max(e.revision) FROM versionsReferencedEntity e2
QueryBuilder maxERevQb = qb.NewSubQueryBuilder(idData.AuditEntityName, alias2);
maxERevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
Parameters maxERevQbParameters = maxERevQb.RootParameters;
// e2.revision <= :revision
maxERevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, "<=", "revision");
// e2.id_ref_ed = e.id_ref_ed
idData.OriginalMapper.AddIdsEqualToQuery(maxERevQbParameters,
alias1 + "." + originalIdPropertyName, alias2 + "." + originalIdPropertyName);
// e.revision = (SELECT max(...) ...)
rootParameters.AddWhere("e." + revisionPropertyPath, false, globalCfg.getCorrelatedSubqueryOperator(), maxERevQb);
}
public static void AddAssociationAtRevision(QueryBuilder qb, Parameters rootParameters,
MiddleIdData referencingIdData, String versionsMiddleEntityName,
String eeOriginalIdPropertyPath, String revisionPropertyPath,
String originalIdPropertyName, IEnumerable<MiddleComponentData> componentDatas)
{
// SELECT max(ee2.revision) FROM middleEntity ee2
QueryBuilder maxEeRevQb = qb.NewSubQueryBuilder(versionsMiddleEntityName, "ee2");
maxEeRevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
Parameters maxEeRevQbParameters = maxEeRevQb.RootParameters;
// ee2.revision <= :revision
maxEeRevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, "<=", "revision");
// ee2.originalId.* = ee.originalId.*
String ee2OriginalIdPropertyPath = "ee2." + originalIdPropertyName;
referencingIdData.PrefixedMapper.AddIdsEqualToQuery(maxEeRevQbParameters, eeOriginalIdPropertyPath, ee2OriginalIdPropertyPath);
foreach (MiddleComponentData componentData in componentDatas) {
componentData.ComponentMapper.AddMiddleEqualToQuery(maxEeRevQbParameters, eeOriginalIdPropertyPath, ee2OriginalIdPropertyPath);
}
// ee.revision = (SELECT max(...) ...)
rootParameters.AddWhere(revisionPropertyPath, "=", maxEeRevQb);
}
public void AddEntityAtRevisionRestriction(QueryBuilder rootQueryBuilder, Parameters parameters, string revisionProperty, string revisionEndProperty,
bool addAlias, MiddleIdData idData, string revisionPropertyPath, string originalIdPropertyName,
string alias1, string alias2)
{
// create a subquery builder
// SELECT max(e.revision) FROM versionsReferencedEntity e2
var maxERevQb = rootQueryBuilder.NewSubQueryBuilder(idData.AuditEntityName, alias2);
maxERevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
var maxERevQbParameters = maxERevQb.RootParameters;
// e2.revision <= :revision
maxERevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, "<=", QueryConstants.RevisionParameter);
// e2.id_ref_ed = e.id_ref_ed
idData.OriginalMapper.AddIdsEqualToQuery(maxERevQbParameters,
alias1 + "." + originalIdPropertyName, alias2 + "." + originalIdPropertyName);
// add subquery to rootParameters
var subqueryOperator = _auditConfiguration.GlobalCfg.CorrelatedSubqueryOperator;
parameters.AddWhere(revisionProperty, addAlias, subqueryOperator, maxERevQb);
}
public void AddAssociationAtRevisionRestriction(QueryBuilder rootQueryBuilder,
Parameters parameters,
string revisionProperty,
string revisionEndProperty,
bool addAlias,
MiddleIdData referencingIdData,
string versionsMiddleEntityName,
string eeOriginalIdPropertyPath,
string revisionPropertyPath,
string originalIdPropertyName,
string alias1,
bool inclusive,
params MiddleComponentData[] componentDatas)
{
// SELECT max(ee2.revision) FROM middleEntity ee2
var maxEeRevQb = rootQueryBuilder.NewSubQueryBuilder(versionsMiddleEntityName, QueryConstants.MiddleEntityAliasDefAudStr);
maxEeRevQb.AddProjection("max", revisionPropertyPath, false);
// WHERE
var maxEeRevQbParameters = maxEeRevQb.RootParameters;
// ee2.revision <= :revision
maxEeRevQbParameters.AddWhereWithNamedParam(revisionPropertyPath, inclusive ? "<=" : "<", QueryConstants.RevisionParameter);
// ee2.originalId.* = ee.originalId.*
var ee2OriginalIdPropertyPath = QueryConstants.MiddleEntityAliasDefAudStr + "." + originalIdPropertyName;
referencingIdData.PrefixedMapper.AddIdsEqualToQuery(maxEeRevQbParameters, eeOriginalIdPropertyPath, ee2OriginalIdPropertyPath);
foreach (var componentData in componentDatas)
{
componentData.ComponentMapper.AddMiddleEqualToQuery(maxEeRevQbParameters, eeOriginalIdPropertyPath, alias1, ee2OriginalIdPropertyPath, QueryConstants.MiddleEntityAliasDefAudStr);
}
// add subquery to rootParameters
parameters.AddWhere(revisionProperty, addAlias, "=", maxEeRevQb);
}
private void addOneToManyAttached(bool fakeOneToManyBidirectional)
{
log.Debug("Adding audit mapping for property {0}. {1}" +
": one-to-many collection, using a join column on the referenced entity.", _referencingEntityName, _propertyName);
var mappedByProperty = getMappedByProperty(_propertyValue);
var mappedBy = mappedByProperty?.Name;
var referencedIdMapping = _mainGenerator.GetReferencedIdMappingData(_referencingEntityName,
_referencedEntityName, _propertyAuditingData, false);
var referencingIdMapping = _referencingEntityConfiguration.IdMappingData;
//// Generating the id mappers data for the referencing side of the relation.
//var referencingIdData = createMiddleIdData(referencingIdMapping,
// mappedBy + MappingTools.RelationCharacter, _referencingEntityName);
MiddleIdData referencingIdData;
// HACK: Terrible hack to fix LegOrSectorID
if ("AviMall.Supplier.Data.Permit" == _referencedEntityName &&
"AviMall.Supplier.Data.AdhocFlightLeg" == _referencingEntityName)
{
// The relational property is Id and navigation.
referencingIdData = new MiddleIdData(
_mainGenerator.VerEntCfg,
referencingIdMapping,
mappedByProperty,
_referencingEntityName,
_mainGenerator.EntitiesConfigurations.ContainsKey(_referencingEntityName)
);
}
else
{
// Generating the id mappers data for the referencing side of the relation.
referencingIdData = createMiddleIdData(referencingIdMapping,
mappedBy + MappingTools.RelationCharacter, _referencingEntityName);
}
// And for the referenced side. The prefixed mapper won't be used (as this collection isn't persisted
// in a join table, so the prefix value is arbitrary).
var referencedIdData = createMiddleIdData(referencedIdMapping,
null, _referencedEntityName);
// Generating the element mapping.
var elementComponentData = new MiddleComponentData(
new MiddleRelatedComponentMapper(referencedIdData), 0);
// Generating the index mapping, if an index exists. It can only exists in case a javax.persistence.MapKey
// annotation is present on the entity. So the middleEntityXml will be not be used. The queryGeneratorBuilder
// will only be checked for nullnes.
var indexComponentData = addIndex(null, null);
// Generating the query generator - it should read directly from the related entity.
var queryGenerator = new OneAuditEntityQueryGenerator(_mainGenerator.VerEntCfg,
_mainGenerator.GlobalCfg.AuditStrategy, referencingIdData, _referencedEntityName, referencedIdData, isEmbeddableElementType());
// Creating common mapper data.
var commonCollectionMapperData = new CommonCollectionMapperData(
_mainGenerator.VerEntCfg, _referencedEntityName,
_propertyAuditingData.GetPropertyData(),
referencingIdData, queryGenerator);
IPropertyMapper fakeBidirectionalRelationMapper;
IPropertyMapper fakeBidirectionalRelationIndexMapper;
if (fakeOneToManyBidirectional)
{
// In case of a fake many-to-one bidirectional relation, we have to generate a mapper which maps
// the mapped-by property name to the id of the related entity (which is the owner of the collection).
var auditMappedBy = _propertyAuditingData.MappedBy;
// Creating a prefixed relation mapper.
var relMapper = referencingIdMapping.IdMapper.PrefixMappedProperties(
MappingTools.CreateToOneRelationPrefix(auditMappedBy));
fakeBidirectionalRelationMapper = new ToOneIdMapper(
relMapper,
// The mapper will only be used to map from entity to map, so no need to provide other details
// when constructing the PropertyData.
new PropertyData(auditMappedBy, null, null),
_referencedEntityName, false);
// Checking if there's an index defined. If so, adding a mapper for it.
if (_propertyAuditingData.PositionMappedBy != null)
{
var positionMappedBy = _propertyAuditingData.PositionMappedBy;
fakeBidirectionalRelationIndexMapper = new SinglePropertyMapper(new PropertyData(positionMappedBy, null, null));
// Also, overwriting the index component data to properly read the index.
indexComponentData = new MiddleComponentData(new MiddleStraightComponentMapper(positionMappedBy), 0);
}
else
{
fakeBidirectionalRelationIndexMapper = null;
}
}
else
{
fakeBidirectionalRelationMapper = null;
fakeBidirectionalRelationIndexMapper = null;
}
// Checking the type of the collection and adding an appropriate mapper.
addMapper(commonCollectionMapperData, elementComponentData, indexComponentData);
// Storing information about this relation.
_referencingEntityConfiguration.AddToManyNotOwningRelation(_propertyName, mappedBy,
_referencedEntityName, referencingIdData.PrefixedMapper, fakeBidirectionalRelationMapper,
fakeBidirectionalRelationIndexMapper);
}
public MiddleRelatedComponentMapper(MiddleIdData relatedIdData)
{
this.relatedIdData = relatedIdData;
}
private void AddOneToManyAttached(bool fakeOneToManyBidirectional)
{
//throw new NotImplementedException();
log.Debug("Adding audit mapping for property " + referencingEntityName + "." + propertyName +
": one-to-many collection, using a join column on the referenced entity.");
String mappedBy = GetMappedBy(propertyValue);
IdMappingData referencedIdMapping = mainGenerator.GetReferencedIdMappingData(referencingEntityName,
referencedEntityName, propertyAuditingData, false);
IdMappingData referencingIdMapping = referencingEntityConfiguration.IdMappingData;
// Generating the id mappers data for the referencing side of the relation.
MiddleIdData referencingIdData = CreateMiddleIdData(referencingIdMapping,
mappedBy + "_", referencingEntityName);
// And for the referenced side. The prefixed mapper won't be used (as this collection isn't persisted
// in a join table, so the prefix value is arbitrary).
MiddleIdData referencedIdData = CreateMiddleIdData(referencedIdMapping,
null, referencedEntityName);
// Generating the element mapping.
MiddleComponentData elementComponentData = new MiddleComponentData(
new MiddleRelatedComponentMapper(referencedIdData), 0);
// Generating the index mapping, if an index exists. It can only exists in case a javax.persistence.MapKey
// annotation is present on the entity. So the middleEntityXml will be not be used. The queryGeneratorBuilder
// will only be checked for nullnes.
MiddleComponentData indexComponentData = AddIndex(null, null);
// Generating the query generator - it should read directly from the related entity.
IRelationQueryGenerator queryGenerator = new OneAuditEntityQueryGenerator(mainGenerator.GlobalCfg,
mainGenerator.VerEntCfg, referencingIdData, referencedEntityName,
referencedIdMapping.IdMapper);
// Creating common mapper data.
CommonCollectionMapperData commonCollectionMapperData = new CommonCollectionMapperData(
mainGenerator.VerEntCfg, referencedEntityName,
propertyAuditingData.getPropertyData(),
referencingIdData, queryGenerator);
IPropertyMapper fakeBidirectionalRelationMapper;
IPropertyMapper fakeBidirectionalRelationIndexMapper;
if (fakeOneToManyBidirectional)
{
// In case of a fake many-to-one bidirectional relation, we have to generate a mapper which maps
// the mapped-by property name to the id of the related entity (which is the owner of the collection).
String auditMappedBy = propertyAuditingData.AuditMappedBy;
// Creating a prefixed relation mapper.
IIdMapper relMapper = referencingIdMapping.IdMapper.PrefixMappedProperties(
MappingTools.createToOneRelationPrefix(auditMappedBy));
fakeBidirectionalRelationMapper = new ToOneIdMapper(
relMapper,
// The mapper will only be used to map from entity to map, so no need to provide other details
// when constructing the PropertyData.
new PropertyData(auditMappedBy, null, null, ModificationStore._NULL),
referencedEntityName, false);
// Checking if there's an index defined. If so, adding a mapper for it.
if (propertyAuditingData.PositionMappedBy != null)
{
String positionMappedBy = propertyAuditingData.PositionMappedBy;
fakeBidirectionalRelationIndexMapper = new SinglePropertyMapper(new PropertyData(positionMappedBy, null, null, ModificationStore._NULL));
// Also, overwriting the index component data to properly read the index.
indexComponentData = new MiddleComponentData(new MiddleStraightComponentMapper(positionMappedBy), 0);
}
else
{
fakeBidirectionalRelationIndexMapper = null;
}
}
else
{
fakeBidirectionalRelationMapper = null;
fakeBidirectionalRelationIndexMapper = null;
}
// Checking the type of the collection and adding an appropriate mapper.
AddMapper(commonCollectionMapperData, elementComponentData, indexComponentData);
// Storing information about this relation.
referencingEntityConfiguration.AddToManyNotOwningRelation(propertyName, mappedBy,
referencedEntityName, referencingIdData.PrefixedMapper, fakeBidirectionalRelationMapper,
fakeBidirectionalRelationIndexMapper);
}
/// <summary>
/// Create query restrictions used to retrieve actual data and deletions that took place at exactly given revision.
/// </summary>
private void createValidAndRemovedDataRestrictions(IAuditStrategy auditStrategy, MiddleIdData referencedIdData, QueryBuilder remQb)
{
var disjoint = remQb.RootParameters.AddSubParameters("or");
var valid = disjoint.AddSubParameters("and"); // Restrictions to match all valid rows.
var removed = disjoint.AddSubParameters("and"); // Restrictions to match all rows deleted at exactly given revision.
// Excluding current revision, because we need to match data valid at the previous one.
createValidDataRestrictions(auditStrategy, referencedIdData, remQb, valid);
// e.revision = :revision
removed.AddWhereWithNamedParam(VerEntCfg.RevisionNumberPath, false, "=", QueryConstants.RevisionParameter);
// e.revision_type = DEL
removed.AddWhereWithNamedParam(RevisionTypePath(), false, "=", QueryConstants.DelRevisionTypeParameter);
}
private void AddWithMiddleTable()
{
log.Debug("Adding audit mapping for property " + referencingEntityName + "." + propertyName +
": collection with a join table.");
// Generating the name of the middle table
String auditMiddleTableName;
String auditMiddleEntityName;
if (!String.IsNullOrEmpty(propertyAuditingData.JoinTable.Name))
{
auditMiddleTableName = propertyAuditingData.JoinTable.Name;
auditMiddleEntityName = propertyAuditingData.JoinTable.Name;
}
else
{
String middleTableName = GetMiddleTableName(propertyValue, referencingEntityName);
auditMiddleTableName = mainGenerator.VerEntCfg.GetAuditTableName(null, middleTableName);
auditMiddleEntityName = mainGenerator.VerEntCfg.GetAuditEntityName(middleTableName);
}
log.Debug("Using join table name: " + auditMiddleTableName);
// Generating the XML mapping for the middle entity, only if the relation isn't inverse.
// If the relation is inverse, will be later checked by comparing middleEntityXml with null.
XmlElement middleEntityXml;
if (!propertyValue.IsInverse)
{
// Generating a unique middle entity name
auditMiddleEntityName = mainGenerator.AuditEntityNameRegister.createUnique(auditMiddleEntityName);
// Registering the generated name
mainGenerator.AuditEntityNameRegister.register(auditMiddleEntityName);
middleEntityXml = CreateMiddleEntityXml(auditMiddleTableName, auditMiddleEntityName, propertyValue.Where);
}
else
{
middleEntityXml = null;
}
// ******
// Generating the mapping for the referencing entity (it must be an entity).
// ******
// Getting the id-mapping data of the referencing entity (the entity that "owns" this collection).
IdMappingData referencingIdMapping = referencingEntityConfiguration.IdMappingData;
// Only valid for an inverse relation; null otherwise.
String mappedBy;
// The referencing prefix is always for a related entity. So it has always the "_" at the end added.
String referencingPrefixRelated;
String referencedPrefix;
if (propertyValue.IsInverse)
{
// If the relation is inverse, then referencedEntityName is not null.
mappedBy = GetMappedBy(propertyValue.CollectionTable, mainGenerator.Cfg.GetClassMapping(referencedEntityName));
referencingPrefixRelated = mappedBy + "_";
referencedPrefix = StringTools.GetLastComponent(referencedEntityName);
}
else
{
mappedBy = null;
referencingPrefixRelated = StringTools.GetLastComponent(referencingEntityName) + "_";
referencedPrefix = referencedEntityName == null ? "element" : propertyName;
}
// Storing the id data of the referencing entity: original mapper, prefixed mapper and entity name.
MiddleIdData referencingIdData = CreateMiddleIdData(referencingIdMapping,
referencingPrefixRelated, referencingEntityName);
// Creating a query generator builder, to which additional id data will be added, in case this collection
// references some entities (either from the element or index). At the end, this will be used to build
// a query generator to read the raw data collection from the middle table.
QueryGeneratorBuilder queryGeneratorBuilder = new QueryGeneratorBuilder(mainGenerator.GlobalCfg,
mainGenerator.VerEntCfg, referencingIdData, auditMiddleEntityName);
// Adding the XML mapping for the referencing entity, if the relation isn't inverse.
if (middleEntityXml != null)
{
// Adding related-entity (in this case: the referencing's entity id) id mapping to the xml.
AddRelatedToXmlMapping(middleEntityXml, referencingPrefixRelated,
MetadataTools.GetColumnNameEnumerator(propertyValue.Key.ColumnIterator.GetEnumerator()),
referencingIdMapping);
}
// ******
// Generating the element mapping.
// ******
MiddleComponentData elementComponentData = AddValueToMiddleTable(propertyValue.Element, middleEntityXml,
queryGeneratorBuilder, referencedPrefix, propertyAuditingData.JoinTable.InverseJoinColumns);
// ******
// Generating the index mapping, if an index exists.
// ******
MiddleComponentData indexComponentData = AddIndex(middleEntityXml, queryGeneratorBuilder);
// ******
// Generating the property mapper.
// ******
// Building the query generator.
IRelationQueryGenerator queryGenerator = queryGeneratorBuilder.Build(new Collection <MiddleComponentData> {
elementComponentData, indexComponentData
});
// Creating common data
CommonCollectionMapperData commonCollectionMapperData = new CommonCollectionMapperData(
mainGenerator.VerEntCfg, auditMiddleEntityName,
propertyAuditingData.getPropertyData(),
referencingIdData, queryGenerator);
// Checking the type of the collection and adding an appropriate mapper.
AddMapper(commonCollectionMapperData, elementComponentData, indexComponentData);
// ******
// Storing information about this relation.
// ******
StoreMiddleEntityRelationInformation(mappedBy);
}
public MiddleRelatedComponentMapper(MiddleIdData relatedIdData)
{
this.relatedIdData = relatedIdData;
}
public void AddEntityAtRevisionRestriction(QueryBuilder rootQueryBuilder, Parameters parameters, string revisionProperty, string revisionEndProperty, bool addAlias, MiddleIdData idData, string revisionPropertyPath, string originalIdPropertyName, string alias1, string alias2)
{
addRevisionRestriction(parameters, revisionProperty, revisionEndProperty, addAlias, true);
}
public void AddAssociationAtRevisionRestriction(QueryBuilder rootQueryBuilder, Parameters parameters, string revisionProperty, string revisionEndProperty, bool addAlias, MiddleIdData referencingIdData, string versionsMiddleEntityName, string eeOriginalIdPropertyPath, string revisionPropertyPath, string originalIdPropertyName, string alias1, bool inclusive, params MiddleComponentData[] componentDatas)
{
addRevisionRestriction(parameters, revisionProperty, revisionEndProperty, addAlias, inclusive);
}
public void AddRelation(MiddleIdData idData)
{
_idDatas.Add(idData);
}
