Package com.evolveum.midpoint.repo.sqlbase.mapping

Class DefaultItemSqlMapper<S,Q extends FlexibleRelationalPathBase<R>,R>

java.lang.Object

com.evolveum.midpoint.repo.sqlbase.mapping.DefaultItemSqlMapper<S,Q,R>

Type Parameters:

S - schema type owning the mapped item

Q - entity path owning the mapped item

R - row type with the mapped item

All Implemented Interfaces:

ItemSqlMapper<Q,R>

Direct Known Subclasses:

SqaleItemSqlMapper

public class DefaultItemSqlMapper<S,Q extends FlexibleRelationalPathBase<R>,R>
extends Object
implements ItemSqlMapper<Q,R>

Declarative information how an item (from schema/prism world) is to be processed when interpreting query. As this is declarative it does not point to any Q-class attributes - instead it knows how to get to the attributes when the Q-class instance (entity path) is provided; this is provided as a function (or functions for multiple paths), typically as lambdas. Based on this information the mapper can later create FilterProcessor when needed, again providing the right type of FilterProcessor, based on the type of the item and/or how the item is mapped to the database.

Constructor Summary

Constructors

Constructor	Description
DefaultItemSqlMapper(@NotNull Function<SqlQueryContext<S,Q,R>,ItemValueFilterProcessor<?>> filterProcessorFactory)
DefaultItemSqlMapper(@NotNull Function<SqlQueryContext<S,Q,R>,ItemValueFilterProcessor<?>> filterProcessorFactory, @Nullable Function<Q,P> primaryItemMapping)

Method Summary

Modifier and Type	Method	Description
<T extends ValueFilter<?,?>> @Nullable ItemValueFilterProcessor<T>	createFilterProcessor(SqlQueryContext<?,?,?> sqlQueryContext)	Creates ItemValueFilterProcessor based on this mapping.
@Nullable RightHandProcessor	createRightHandProcessor(SqlQueryContext<?,?,?> sqlQueryContext)
@Nullable com.querydsl.core.types.Path<?>	primaryPath(Q root, ItemDefinition<?> unused)	Returns primary path for provided entity path - usable for ordering.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultItemSqlMapper

public DefaultItemSqlMapper(@NotNull
                            @NotNull Function<SqlQueryContext<S,Q,R>,ItemValueFilterProcessor<?>> filterProcessorFactory,
                            @Nullable
                            @Nullable Function<Q,P> primaryItemMapping)

DefaultItemSqlMapper

public DefaultItemSqlMapper(@NotNull
                            @NotNull Function<SqlQueryContext<S,Q,R>,ItemValueFilterProcessor<?>> filterProcessorFactory)

Method Detail

primaryPath

@Nullable
public @Nullable com.querydsl.core.types.Path<?> primaryPath(Q root,
                                                             ItemDefinition<?> unused)

Description copied from interface: ItemSqlMapper

Returns primary path for provided entity path - usable for ordering.

Specified by:

primaryPath in interface ItemSqlMapper<S,Q extends FlexibleRelationalPathBase<R>>

createFilterProcessor

@Nullable
public <T extends ValueFilter<?,?>> @Nullable ItemValueFilterProcessor<T> createFilterProcessor(SqlQueryContext<?,?,?> sqlQueryContext)

Creates ItemValueFilterProcessor based on this mapping. Provided SqlQueryContext is used to figure out the query paths when this is executed (as the entity path instance is not yet available when the mapping is configured in a declarative manner). The type of the returned processor is adapted to the client code needs for convenience. Also the type of the provided context is flexible, but with proper mapping it's all safe. [NOTE] This may return null if the subclass supports other type of mapping for this item, but not filtering for queries.

Specified by:

createFilterProcessor in interface ItemSqlMapper<S,Q extends FlexibleRelationalPathBase<R>>

createRightHandProcessor

@Nullable
public @Nullable RightHandProcessor createRightHandProcessor(SqlQueryContext<?,?,?> sqlQueryContext)

Specified by:

createRightHandProcessor in interface ItemSqlMapper<S,Q extends FlexibleRelationalPathBase<R>>