Class AssociationJoin

java.lang.Object

com.kingsrook.qqq.backend.core.actions.tables.helpers.AssociationJoin

public class AssociationJoin
extends Object

A declared association's field pairs, oriented from parent to child. Tuple values use the child field types for both matching and assignment.

Method Summary

Modifier and Type	Method	Description
void	assignParentValues(QRecord parent, QRecord child)	Relationship fields override child input using the actual parent values.
List<Serializable>	childValues(QRecord record)	Use the same declared types as the parent lookup key.
List<JoinOn>	getJoinOns()	Return parent-left field pairs without exposing the registered join.
List<Serializable>	parentValues(QRecord record)	Preserve explicit null components; callers decide whether membership exists.
static AssociationJoin	resolve(QTableMetaData parentTable, Association association)	Resolve the supplied parent's declared graph, including personalized metadata.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

resolve

public static AssociationJoin resolve(QTableMetaData parentTable,
 Association association)
                               throws QException

Resolve the supplied parent's declared graph, including personalized metadata. Self joins keep the registered left side as the parent, as validation does.

Throws:

QException

getJoinOns

public List<JoinOn> getJoinOns()

Return parent-left field pairs without exposing the registered join.

parentValues

public List<Serializable> parentValues(QRecord record)

Preserve explicit null components; callers decide whether membership exists.

childValues

public List<Serializable> childValues(QRecord record)

Use the same declared types as the parent lookup key.

assignParentValues

public void assignParentValues(QRecord parent,
 QRecord child)

Relationship fields override child input using the actual parent values.