Package com.evolveum.midpoint.repo.sqale.mapping

Class RefTableTargetResolver<Q extends QReference<R,?>,R extends MReference,TQ extends QObject<TR>,TR extends MObject>

java.lang.Object

com.evolveum.midpoint.repo.sqale.mapping.RefTableTargetResolver<Q,R,TQ,TR>

Type Parameters:

Q - type of reference entity path (where the mapping is)

R - row type for RefTableTargetResolver

TQ - type of target entity path, that is referenced object

TR - row type related to the target entity path RefTableTargetResolver

All Implemented Interfaces:

ItemRelationResolver<Q,R,TQ,TR>

public class RefTableTargetResolver<Q extends QReference<R,?>,R extends MReference,TQ extends QObject<TR>,TR extends MObject>
extends Object
implements ItemRelationResolver<Q,R,TQ,TR>

Resolver that knows how to traverse from reference table to the reference target. The resolver uses mapping lazily via supplier to avoid call cycles during mapping initialization. Ideal mapping type provided by the supplier is to be found in the schema inside `<a:objectReferenceTargetType>` element for the reference, using more generic type means Postgres has to search through more sub-tables than necessary and also doesn't provide the right implicit type for further conditions on the target.

Nested Class Summary

Nested classes/interfaces inherited from interface com.evolveum.midpoint.repo.sqlbase.mapping.ItemRelationResolver

ItemRelationResolver.ResolutionResult<TQ extends FlexibleRelationalPathBase<TR>,TR>

Constructor Summary

Constructors

Constructor	Description
RefTableTargetResolver(@NotNull Supplier<QueryTableMapping<?,TQ,TR>> targetMappingSupplier)

Method Summary

Modifier and Type	Method	Description
ItemRelationResolver.ResolutionResult<TQ,TR>	resolve(SqlQueryContext<?,Q,R> context)	Resolves a query context to ItemRelationResolver.ResolutionResult with new context and mapping.

Methods inherited from class java.lang.Object

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

Constructor Details

RefTableTargetResolver

public RefTableTargetResolver(@NotNull
 @NotNull Supplier<QueryTableMapping<?,TQ,TR>> targetMappingSupplier)

Method Details

resolve

public ItemRelationResolver.ResolutionResult<TQ,TR> resolve(SqlQueryContext<?,Q,R> context)

Description copied from interface: ItemRelationResolver

Resolves a query context to ItemRelationResolver.ResolutionResult with new context and mapping. The information about the resolved item is captured in the instance resolver already in a manner that is specific for various types of resolution (subquery or nested mapping).

Specified by:

resolve in interface ItemRelationResolver<Q extends QReference<R,?>,R extends MReference,TQ extends QObject<TR>,TR extends MObject>