io.katharsis.jpa.query.criteria

Class JpaCriteriaQueryFactory

java.lang.Object

io.katharsis.jpa.internal.JpaQueryFactoryBase

io.katharsis.jpa.query.criteria.JpaCriteriaQueryFactory

All Implemented Interfaces:

JpaQueryFactory

public class JpaCriteriaQueryFactory
extends JpaQueryFactoryBase
implements JpaQueryFactory

Field Summary

Fields inherited from class io.katharsis.jpa.internal.JpaQueryFactoryBase

computedAttrs, em, metaLookup

Method Summary

Modifier and Type	Method and Description
static JpaCriteriaQueryFactory	newInstance()
<T> JpaCriteriaQuery<T>	query(Class<?> entityClass, String attrName, List<?> entityIds) Builds a new query for the given attribute.
<T> JpaCriteriaQuery<T>	query(Class<T> entityClass) Builds a new query for the given entity class.
void	registerComputedAttribute(Class<?> targetClass, String attributeName, Type attributeType, JpaCriteriaExpressionFactory<?> expressionFactory)

Methods inherited from class io.katharsis.jpa.internal.JpaQueryFactoryBase

getComputedAttributes, getEntityManager, initalize

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.katharsis.jpa.query.JpaQueryFactory

getComputedAttributes, initalize

Method Detail

newInstance

public static JpaCriteriaQueryFactory newInstance()

query

public <T> JpaCriteriaQuery<T> query(Class<T> entityClass)

Description copied from interface: JpaQueryFactory

Builds a new query for the given entity class.

Specified by:

query in interface JpaQueryFactory

Type Parameters:

T - entity

Parameters:

entityClass - to query

Returns:

query

query

public <T> JpaCriteriaQuery<T> query(Class<?> entityClass,
                                     String attrName,
                                     List<?> entityIds)

Description copied from interface: JpaQueryFactory

Builds a new query for the given attribute. Used to retrieve relations of an entity.

Specified by:

query in interface JpaQueryFactory

Type Parameters:

T - parent entity

Parameters:

entityClass - to fetch children from

attrName - on parent entity

entityIds - to retrieve the children from

Returns:

query

registerComputedAttribute

public void registerComputedAttribute(Class<?> targetClass,
                                      String attributeName,
                                      Type attributeType,
                                      JpaCriteriaExpressionFactory<?> expressionFactory)