io.katharsis.jpa.query

Interface JpaQueryFactory

All Known Implementing Classes:

JpaCriteriaQueryFactory, JpaQueryFactoryBase, QuerydslQueryFactory

public interface JpaQueryFactory

Method Summary

Modifier and Type	Method and Description
ComputedAttributeRegistry	getComputedAttributes()
void	initalize(JpaQueryFactoryContext context) Called by the JPA module ones initalized.
<T> JpaQuery<T>	query(Class<?> parentEntityClass, String childrenAttrName, List<?> parentIds) Builds a new query for the given attribute.
<T> JpaQuery<T>	query(Class<T> entityClass) Builds a new query for the given entity class.

Method Detail

initalize

void initalize(JpaQueryFactoryContext context)

Called by the JPA module ones initalized.

Parameters:

context - to access entityManager, meta-data, etc.

query

<T> JpaQuery<T> query(Class<T> entityClass)

Builds a new query for the given entity class.

Type Parameters:

T - entity

Parameters:

entityClass - to query

Returns:

query

query

<T> JpaQuery<T> query(Class<?> parentEntityClass,
                      String childrenAttrName,
                      List<?> parentIds)

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

Type Parameters:

T - parent entity

Parameters:

parentEntityClass - to fetch children from

childrenAttrName - on parent entity

parentIds - to retrieve the children from

Returns:

query

getComputedAttributes

ComputedAttributeRegistry getComputedAttributes()

Returns:

ComputedAttributeRegistry holding registered computed attributes