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 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();
}
