com.mysema.query.support
Class ProjectableAdapter<P extends Projectable>

java.lang.Object
  com.mysema.query.support.ProjectableAdapter<P>

All Implemented Interfaces:

Projectable

public class ProjectableAdapter<P extends Projectable>
extends Object
implements Projectable

ProjectableAdapter is an adapter implementation for the Projectable interface

Version:

$Id$

Author:

tiwe

Constructor Summary

ProjectableAdapter(P projectable)

Method Summary

long	count() return the amount of matched rows
long	countDistinct() return the amount of distinct matched rows
boolean	exists()
protected P	getProjectable()
com.mysema.commons.lang.CloseableIterator<Object[]>	iterate(Expression<?>[] args) iterate over the results for the given projection
com.mysema.commons.lang.CloseableIterator<Object[]>	iterate(Expression<?> first, Expression<?> second, Expression<?>... rest) iterate over the results for the given projection
<RT> com.mysema.commons.lang.CloseableIterator<RT>	iterate(Expression<RT> projection) iterate over the results for the given projection
com.mysema.commons.lang.CloseableIterator<Object[]>	iterateDistinct(Expression<?>[] args) iterate over the distinct results for the given projection
com.mysema.commons.lang.CloseableIterator<Object[]>	iterateDistinct(Expression<?> first, Expression<?> second, Expression<?>... rest) iterate over the distinct results for the given projection
<RT> com.mysema.commons.lang.CloseableIterator<RT>	iterateDistinct(Expression<RT> projection) iterate over the distinct results for the given projection
List<Object[]>	list(Expression<?>[] args) list the results for the given projection
List<Object[]>	list(Expression<?> first, Expression<?> second, Expression<?>... rest) list the results for the given projection
<RT> List<RT>	list(Expression<RT> projection) list the results for the given projection
List<Object[]>	listDistinct(Expression<?>[] args) list the distinct results for the given projection
List<Object[]>	listDistinct(Expression<?> first, Expression<?> second, Expression<?>... rest) list the distinct results for the given projection
<RT> List<RT>	listDistinct(Expression<RT> projection) list the distinct results for the given projection
<RT> SearchResults<RT>	listDistinctResults(Expression<RT> expr) list the distinct results for the given projection
<RT> SearchResults<RT>	listResults(Expression<RT> expr) list the results for the given projection
<K,V> Map<K,V>	map(Expression<K> key, Expression<V> value) return the given projection as a Map instance using key and value for Map population
boolean	notExists()
String	toString()
Object[]	uniqueResult(Expression<?>[] args) return a unique result for the given projection or null if not result is found
Object[]	uniqueResult(Expression<?> first, Expression<?> second, Expression<?>... rest) return a unique result for the given projection or null if not result is found
<RT> RT	uniqueResult(Expression<RT> expr) return a unique result for the given projection or null if not result is found

Methods inherited from class java.lang.Object

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

Constructor Detail

ProjectableAdapter

public ProjectableAdapter(P projectable)

Method Detail

getProjectable

protected P getProjectable()

count

public long count()

Description copied from interface: Projectable

return the amount of matched rows

Specified by:

count in interface Projectable

countDistinct

public long countDistinct()

Description copied from interface: Projectable

return the amount of distinct matched rows

Specified by:

countDistinct in interface Projectable

exists

public boolean exists()

Specified by:

exists in interface Projectable

Returns:

true, if rows matching the given criteria exist, otherwise false

notExists

public boolean notExists()

Specified by:

notExists in interface Projectable

Returns:

true, if no rows matching the given criteria exist, otherwise false

iterate

public com.mysema.commons.lang.CloseableIterator<Object[]> iterate(Expression<?> first,
                                                                   Expression<?> second,
                                                                   Expression<?>... 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

iterate

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

Description copied from interface: Projectable

iterate over the results for the given projection

Specified by:

iterate in interface Projectable

Returns:

iterate

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

Description copied from interface: Projectable

iterate over the results for the given projection

Specified by:

iterate in interface Projectable

Type Parameters:

RT - generic type of the Iterator

Returns:

an Iterator over the projection

iterateDistinct

public com.mysema.commons.lang.CloseableIterator<Object[]> iterateDistinct(Expression<?> first,
                                                                           Expression<?> second,
                                                                           Expression<?>... 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 com.mysema.commons.lang.CloseableIterator<Object[]> iterateDistinct(Expression<?>[] args)

Description copied from interface: Projectable

iterate over the distinct results for the given projection

Specified by:

iterateDistinct in interface Projectable

Returns:

iterateDistinct

public <RT> com.mysema.commons.lang.CloseableIterator<RT> iterateDistinct(Expression<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 List<Object[]> list(Expression<?> first,
                           Expression<?> second,
                           Expression<?>... 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(Expression<?>[] 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(Expression<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 List<Object[]> listDistinct(Expression<?> first,
                                   Expression<?> second,
                                   Expression<?>... 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 List<Object[]> listDistinct(Expression<?>[] args)

Description copied from interface: Projectable

list the distinct results for the given projection

Specified by:

listDistinct in interface Projectable

Returns:

listDistinct

public <RT> List<RT> listDistinct(Expression<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 <RT> SearchResults<RT> listDistinctResults(Expression<RT> expr)

Description copied from interface: Projectable

list the distinct results for the given projection

Specified by:

listDistinctResults in interface Projectable

Returns:

listResults

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

Description copied from interface: Projectable

list the results for the given projection

Specified by:

listResults in interface Projectable

Returns:

map

public <K,V> Map<K,V> map(Expression<K> key,
                          Expression<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:

toString

public String toString()

Overrides:

toString in class Object

uniqueResult

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

Description copied from interface: Projectable

return a unique result for the given projection or null if not result is found

Specified by:

uniqueResult in interface Projectable

Returns:

uniqueResult

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

Description copied from interface: Projectable

return a unique result for the given projection or null if not result is found

Specified by:

uniqueResult in interface Projectable

Returns:

uniqueResult

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

Description copied from interface: Projectable

return a unique result for the given projection or null if not result is found

Specified by:

uniqueResult in interface Projectable

Type Parameters:

RT - return type

Returns:

the result or null for an empty result