com.mysema.query.hql.jpa
Class AbstractJPAQuery<Q extends AbstractJPAQuery<Q>>

java.lang.Object
  com.mysema.query.support.QueryBase<Q>
      com.mysema.query.support.ProjectableQuery<Q>
          com.mysema.query.hql.HQLQueryBase<Q>
              com.mysema.query.hql.jpa.AbstractJPAQuery<Q>

Type Parameters:

Q -

All Implemented Interfaces:

Projectable

Direct Known Subclasses:

JPAQuery

public abstract class AbstractJPAQuery<Q extends AbstractJPAQuery<Q>>
extends HQLQueryBase<Q>

Abstract base class for JPA API based implementations of the HQLQuery interface

Author:

tiwe

Constructor Summary

AbstractJPAQuery(javax.persistence.EntityManager em)

AbstractJPAQuery(JPASessionHolder sessionHolder, HQLTemplates patterns, QueryMetadata metadata)

Method Summary

long	count() return the amount of matched rows
javax.persistence.Query	createQuery(Expr<?> expr) Expose the original JPA query for the given projection
javax.persistence.Query	createQuery(Expr<?>[] args) Expose the original JPA query for the given projection
javax.persistence.Query	createQuery(Expr<?> expr1, Expr<?> expr2, Expr<?>... rest) Expose the original JPA query for the given projection
com.mysema.commons.lang.CloseableIterator<Object[]>	iterate(Expr<?>[] args) iterate over the results for the given projection
<RT> com.mysema.commons.lang.CloseableIterator<RT>	iterate(Expr<RT> projection) iterate over the results for the given projection
List<Object[]>	list(Expr<?>[] args) list the results for the given projection
<RT> List<RT>	list(Expr<RT> expr) list the results for the given projection
<RT> SearchResults<RT>	listResults(Expr<RT> expr) list the results for the given projection
protected void	logQuery(String queryString)
<RT> RT	uniqueResult(Expr<RT> expr) return a unique result for the given projection

Methods inherited from class com.mysema.query.hql.HQLQueryBase

fetch, fetchAll, from, fullJoin, fullJoin, fullJoin, fullJoin, fullJoin, fullJoin, getConstants, getMetadata, getQueryMixin, getTemplates, innerJoin, innerJoin, innerJoin, innerJoin, innerJoin, innerJoin, join, join, join, join, join, join, leftJoin, leftJoin, leftJoin, leftJoin, leftJoin, leftJoin, reset, toCountRowsString, toQueryString, toString, with

Methods inherited from class com.mysema.query.support.ProjectableQuery

countDistinct, iterate, iterateDistinct, iterateDistinct, iterateDistinct, list, listDistinct, listDistinct, listDistinct, listDistinctResults, map, uniqueResult, uniqueResult

Methods inherited from class com.mysema.query.support.QueryBase

groupBy, having, limit, offset, orderBy, restrict, where

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractJPAQuery

public AbstractJPAQuery(javax.persistence.EntityManager em)

AbstractJPAQuery

public AbstractJPAQuery(JPASessionHolder sessionHolder,
                        HQLTemplates patterns,
                        QueryMetadata metadata)

Method Detail

count

public long count()

Description copied from interface: Projectable

return the amount of matched rows

createQuery

public javax.persistence.Query createQuery(Expr<?> expr)

Expose the original JPA query for the given projection

Parameters:

expr -

Returns:

createQuery

public javax.persistence.Query createQuery(Expr<?> expr1,
                                           Expr<?> expr2,
                                           Expr<?>... rest)

Expose the original JPA query for the given projection

Parameters:

expr -

Returns:

createQuery

public javax.persistence.Query createQuery(Expr<?>[] args)

Expose the original JPA query for the given projection

Parameters:

args -

Returns:

iterate

public com.mysema.commons.lang.CloseableIterator<Object[]> iterate(Expr<?>[] args)

Description copied from interface: Projectable

iterate over the results for the given projection

Returns:

iterate

public <RT> com.mysema.commons.lang.CloseableIterator<RT> iterate(Expr<RT> projection)

Description copied from interface: Projectable

iterate over the results for the given projection

Type Parameters:

RT - generic type of the Iteratpr

Returns:

an Iterator over the projection

list

public List<Object[]> list(Expr<?>[] args)

Description copied from interface: Projectable

list the results for the given projection

Specified by:

list in interface Projectable

Overrides:

list in class ProjectableQuery<Q extends AbstractJPAQuery<Q>>

Returns:

list

public <RT> List<RT> list(Expr<RT> expr)

Description copied from interface: Projectable

list the results for the given projection

Specified by:

list in interface Projectable

Overrides:

list in class ProjectableQuery<Q extends AbstractJPAQuery<Q>>

Type Parameters:

RT - generic type of the List

Returns:

a List over the projection

listResults

public <RT> SearchResults<RT> listResults(Expr<RT> expr)

Description copied from interface: Projectable

list the results for the given projection

Returns:

logQuery

protected void logQuery(String queryString)

uniqueResult

public <RT> RT uniqueResult(Expr<RT> expr)

Description copied from interface: Projectable

return a unique result for the given projection

Specified by:

uniqueResult in interface Projectable

Overrides:

uniqueResult in class ProjectableQuery<Q extends AbstractJPAQuery<Q>>

Type Parameters:

RT - return type

Returns:

the result or null for an empty result