com.mysema.query.support
Class ProjectableQuery<Q extends ProjectableQuery<Q>>

java.lang.Object
  com.mysema.query.support.QueryBase<Q>
      com.mysema.query.support.ProjectableQuery<Q>

All Implemented Interfaces:

Projectable

Direct Known Subclasses:

AbstractColQuery, AbstractJDOQLQuery, AbstractSQLQuery, AbstractSQLQuery, AbstractSQLQuery, HQLQueryBase

public abstract class ProjectableQuery<Q extends ProjectableQuery<Q>>
extends QueryBase<Q>
implements Projectable

ProjectableQuery extends the QueryBase class to provide default implementations of the methods of the Projectable interface

Version:

$Id$

Author:

tiwe

Field Summary

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

queryMixin

Constructor Summary

ProjectableQuery(QueryMixin<Q> queryMixin)

Method Summary

long	countDistinct() return the amount of distinct matched rows
com.mysema.commons.lang.CloseableIterator<Object[]>	iterate(Expr<?> first, Expr<?> second, Expr<?>... rest) iterate over the results for the given projection
com.mysema.commons.lang.CloseableIterator<Object[]>	iterateDistinct(Expr<?>[] args) iterate over the distinct results for the given projection
com.mysema.commons.lang.CloseableIterator<Object[]>	iterateDistinct(Expr<?> first, Expr<?> second, Expr<?>... rest) iterate over the distinct results for the given projection
<RT> com.mysema.commons.lang.CloseableIterator<RT>	iterateDistinct(Expr<RT> projection) iterate over the distinct results for the given projection
List<Object[]>	list(Expr<?>[] args) list the results for the given projection
List<Object[]>	list(Expr<?> first, Expr<?> second, Expr<?>... rest) list the results for the given projection
<RT> List<RT>	list(Expr<RT> projection) list the results for the given projection
List<Object[]>	listDistinct(Expr<?>[] args) list the distinct results for the given projection
List<Object[]>	listDistinct(Expr<?> first, Expr<?> second, Expr<?>... rest) list the distinct results for the given projection
<RT> List<RT>	listDistinct(Expr<RT> projection) list the distinct results for the given projection
<RT> SearchResults<RT>	listDistinctResults(Expr<RT> projection) list the distinct results for the given projection
<K,V> Map<K,V>	map(Expr<K> key, Expr<V> value) return the given projection as a Map instance using key and value for Map population
Object[]	uniqueResult(Expr<?>[] args) return a unique result for the given projection
Object[]	uniqueResult(Expr<?> first, Expr<?> second, Expr<?>... rest) return a unique result for the given projection
<RT> RT	uniqueResult(Expr<RT> expr) return a unique result for the given projection

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

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.mysema.query.Projectable

count, iterate, iterate, listResults

Constructor Detail

ProjectableQuery

public ProjectableQuery(QueryMixin<Q> queryMixin)

Method Detail

countDistinct

public long countDistinct()

Description copied from interface: Projectable

return the amount of distinct matched rows

Specified by:

countDistinct in interface Projectable

iterate

public final com.mysema.commons.lang.CloseableIterator<Object[]> iterate(Expr<?> first,
                                                                         Expr<?> second,
                                                                         Expr<?>... rest)

Description copied from interface: Projectable

iterate over the results for the given projection

Specified by:

iterate in interface Projectable

Returns:

an Iterator over the projection

iterateDistinct

public final com.mysema.commons.lang.CloseableIterator<Object[]> iterateDistinct(Expr<?> first,
                                                                                 Expr<?> second,
                                                                                 Expr<?>... rest)

Description copied from interface: Projectable

iterate over the distinct results for the given projection

Specified by:

iterateDistinct in interface Projectable

Returns:

an Iterator over the projection

iterateDistinct

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

Description copied from interface: Projectable

iterate over the distinct results for the given projection

Specified by:

iterateDistinct in interface Projectable

Returns:

iterateDistinct

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

Description copied from interface: Projectable

iterate over the distinct results for the given projection

Specified by:

iterateDistinct in interface Projectable

Type Parameters:

RT - generic type of the Iteratpr

Returns:

an Iterator over the projection

list

public final List<Object[]> list(Expr<?> first,
                                 Expr<?> second,
                                 Expr<?>... rest)

Description copied from interface: Projectable

list the results for the given projection

Specified by:

list in interface Projectable

rest - rest

Returns:

a List 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

Returns:

list

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

Description copied from interface: Projectable

list the results for the given projection

Specified by:

list in interface Projectable

Type Parameters:

RT - generic type of the List

Returns:

a List over the projection

listDistinct

public final List<Object[]> listDistinct(Expr<?> first,
                                         Expr<?> second,
                                         Expr<?>... rest)

Description copied from interface: Projectable

list the distinct results for the given projection

Specified by:

listDistinct in interface Projectable

rest - rest

Returns:

a List over the projection

listDistinct

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

Description copied from interface: Projectable

list the distinct results for the given projection

Specified by:

listDistinct in interface Projectable

Returns:

listDistinct

public final <RT> List<RT> listDistinct(Expr<RT> projection)

Description copied from interface: Projectable

list the distinct results for the given projection

Specified by:

listDistinct in interface Projectable

Type Parameters:

RT - generic type of the List

Returns:

a List over the projection

listDistinctResults

public final <RT> SearchResults<RT> listDistinctResults(Expr<RT> projection)

Description copied from interface: Projectable

list the distinct results for the given projection

Specified by:

listDistinctResults in interface Projectable

Returns:

map

public final <K,V> Map<K,V> map(Expr<K> key,
                                Expr<V> value)

Description copied from interface: Projectable

return the given projection as a Map instance using key and value for Map population

Specified by:

map in interface Projectable

Returns:

uniqueResult

public final Object[] uniqueResult(Expr<?> first,
                                   Expr<?> second,
                                   Expr<?>... rest)

Description copied from interface: Projectable

return a unique result for the given projection

Specified by:

uniqueResult in interface Projectable

Returns:

uniqueResult

public Object[] uniqueResult(Expr<?>[] args)

Description copied from interface: Projectable

return a unique result for the given projection

Specified by:

uniqueResult in interface Projectable

Returns:

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

Type Parameters:

RT - return type

Returns:

the result or null for an empty result