Class EJBQLJoinAppender
java.lang.Object
org.apache.cayenne.access.translator.ejbql.EJBQLJoinAppender
public class EJBQLJoinAppender extends Object
Handles appending joins to the content buffer at a marked position.
- Since:
- 3.0
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Field SummaryFields Modifier and Type Field Description protected EJBQLTranslationContextcontext
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Constructor SummaryConstructors Constructor Description EJBQLJoinAppender(EJBQLTranslationContext context)
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Method SummaryModifier and Type Method Description voidappendInnerJoin(String marker, org.apache.cayenne.access.translator.ejbql.EJBQLTableId lhsId, org.apache.cayenne.access.translator.ejbql.EJBQLTableId rhsId)protected voidappendJoin(String marker, org.apache.cayenne.access.translator.ejbql.EJBQLTableId lhsId, org.apache.cayenne.access.translator.ejbql.EJBQLTableId rhsId, String semantics)voidappendOuterJoin(String marker, org.apache.cayenne.access.translator.ejbql.EJBQLTableId lhsId, org.apache.cayenne.access.translator.ejbql.EJBQLTableId rhsId)StringappendTable(org.apache.cayenne.access.translator.ejbql.EJBQLTableId id)StringregisterReusableJoin(String sourceIdPath, String relationship, String targetId)Registers a "reusable" join, returning a preexisting ID if the join is already registered.
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Field Details- 
context
 
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Constructor Details- 
EJBQLJoinAppender
 
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Method Details- 
registerReusableJoinRegisters a "reusable" join, returning a preexisting ID if the join is already registered. Reusable joins are the implicit inner joins that are added as a result of processing of path expressions in SELECT or WHERE clauses. Note that if an implicit INNER join overlaps with an explicit INNER join, both joins are added to the query.
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appendInnerJoinpublic void appendInnerJoin(String marker, org.apache.cayenne.access.translator.ejbql.EJBQLTableId lhsId, org.apache.cayenne.access.translator.ejbql.EJBQLTableId rhsId)
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appendOuterJoinpublic void appendOuterJoin(String marker, org.apache.cayenne.access.translator.ejbql.EJBQLTableId lhsId, org.apache.cayenne.access.translator.ejbql.EJBQLTableId rhsId)
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appendJoin
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appendTable
 
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