Package org.apache.openjpa.persistence.query

Class QueryBuilderImpl

java.lang.Object

org.apache.openjpa.persistence.query.QueryBuilderImpl

All Implemented Interfaces:

OpenJPAQueryBuilder, QueryBuilder

public class QueryBuilderImpl
extends Object
implements OpenJPAQueryBuilder

The factory for QueryDefinition.

Author:

Pinaki Poddar

Constructor Summary

Constructors

Constructor	Description
QueryBuilderImpl(OpenJPAEntityManagerFactorySPI emf)

Method Summary

Modifier and Type	Method	Description
QueryDefinition	createQueryDefinition()	Creates a QueryDefinition without a domain.
DomainObject	createQueryDefinition(Class root)	Creates a QueryDefinition with given class as domain.
QueryDefinition	createQueryDefinition(String jpql)	Create a QueryDefinition from the given JPQL String.
QueryDefinition	createQueryDefinition(Query jpql)	Create a QueryDefinition from the given OpenJPA Query instance.
DomainObject	createSubqueryDefinition(PathExpression path)	Creates a QueryDefinition that can be used a correlated subquery with the given path as domain.
String	toJPQL(QueryDefinition query)	Gets equivalent JPQL String for the given QueryDefinition.

Methods inherited from class java.lang.Object

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

Constructor Details

QueryBuilderImpl

public QueryBuilderImpl(OpenJPAEntityManagerFactorySPI emf)

Method Details

createQueryDefinition

public QueryDefinition createQueryDefinition()

Creates a QueryDefinition without a domain.

Specified by:

createQueryDefinition in interface QueryBuilder

Returns:

query definition instance

createQueryDefinition

public DomainObject createQueryDefinition(Class root)

Creates a QueryDefinition with given class as domain.

Specified by:

createQueryDefinition in interface QueryBuilder

Returns:

root domain object

createSubqueryDefinition

public DomainObject createSubqueryDefinition(PathExpression path)

Creates a QueryDefinition that can be used a correlated subquery with the given path as domain.

Specified by:

createSubqueryDefinition in interface QueryBuilder

Parameters:

path - - path expression corresponding to the domain object used to derive the subquery root.

Returns:

the subquery DomainObject

toJPQL

public String toJPQL(QueryDefinition query)

Description copied from interface: OpenJPAQueryBuilder

Gets equivalent JPQL String for the given QueryDefinition.

Specified by:

toJPQL in interface OpenJPAQueryBuilder

createQueryDefinition

public QueryDefinition createQueryDefinition(String jpql)

Description copied from interface: OpenJPAQueryBuilder

Create a QueryDefinition from the given JPQL String.

Specified by:

createQueryDefinition in interface OpenJPAQueryBuilder

createQueryDefinition

public QueryDefinition createQueryDefinition(Query jpql)

Description copied from interface: OpenJPAQueryBuilder

Create a QueryDefinition from the given OpenJPA Query instance.

Specified by:

createQueryDefinition in interface OpenJPAQueryBuilder