com.mysema.query.support
Class DetachableQuery<SubType extends DetachableQuery<SubType>>

java.lang.Object
  com.mysema.query.QueryBase<SubType>
      com.mysema.query.support.DetachableQuery<SubType>

Type Parameters:

SubType -

All Implemented Interfaces:

Detachable

Direct Known Subclasses:

HQLSubQuery, JDOQLSubQuery, SQLSubQuery

public class DetachableQuery<SubType extends DetachableQuery<SubType>>
extends QueryBase<SubType>
implements Detachable

Author:

tiwe

Field Summary

Fields inherited from class com.mysema.query.QueryBase

queryMixin

Constructor Summary

DetachableQuery(QueryMixin<SubType> queryMixin)

Method Summary

ObjectSubQuery<Long>	count() Return the count of matched rows as a sub query
EBoolean	exists() Create an exists(this) expression
ListSubQuery<Object[]>	list(Expr<?>[] args)
ListSubQuery<Object[]>	list(Expr<?> first, Expr<?> second, Expr<?>... rest) Create a projection expression for the given projection
<RT> ListSubQuery<RT>	list(Expr<RT> projection) Create a projection expression for the given projection
EBoolean	notExists() Create an not exists(this) expression
ObjectSubQuery<Object[]>	unique(Expr<?>[] args) Create a projection expression for the given projection
ObjectSubQuery<Object[]>	unique(Expr<?> first, Expr<?> second, Expr<?>... rest) Create a projection expression for the given projection
<RT> ObjectSubQuery<RT>	unique(Expr<RT> projection) Create a projection expression for the given projection

Methods inherited from class com.mysema.query.QueryBase

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

Methods inherited from class java.lang.Object

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

Constructor Detail

DetachableQuery

public DetachableQuery(QueryMixin<SubType> queryMixin)

Method Detail

count

public ObjectSubQuery<Long> count()

Description copied from interface: Detachable

Return the count of matched rows as a sub query

Specified by:

count in interface Detachable

Returns:

exists

public EBoolean exists()

Description copied from interface: Detachable

Create an exists(this) expression

Specified by:

exists in interface Detachable

Returns:

list

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

Description copied from interface: Detachable

Create a projection expression for the given projection

Specified by:

list in interface Detachable

rest - rest

Returns:

a List over the projection

list

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

Specified by:

list in interface Detachable

Returns:

list

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

Description copied from interface: Detachable

Create a projection expression for the given projection

Specified by:

list in interface Detachable

Type Parameters:

RT - generic type of the List

Returns:

a List over the projection

notExists

public EBoolean notExists()

Description copied from interface: Detachable

Create an not exists(this) expression

Specified by:

notExists in interface Detachable

Returns:

unique

public ObjectSubQuery<Object[]> unique(Expr<?> first,
                                       Expr<?> second,
                                       Expr<?>... rest)

Description copied from interface: Detachable

Create a projection expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public ObjectSubQuery<Object[]> unique(Expr<?>[] args)

Description copied from interface: Detachable

Create a projection expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public <RT> ObjectSubQuery<RT> unique(Expr<RT> projection)

Description copied from interface: Detachable

Create a projection expression for the given projection

Specified by:

unique in interface Detachable

Type Parameters:

RT - return type

Returns:

the result or null for an empty result