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

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

Type Parameters:

SubType -

All Implemented Interfaces:

Detachable

Direct Known Subclasses:

HQLSubQuery, JDOQLSubQuery, SQLSubQuery

public abstract class QueryBaseWithDetach<SubType extends QueryBaseWithDetach<SubType>>
extends QueryBase<SubType>
implements Detachable

Author:

tiwe

Field Summary

Fields inherited from class com.mysema.query.QueryBase

_this

Constructor Summary

QueryBaseWithDetach(QueryMetadata metadata)

Method Summary

ObjectSubQuery<Long>	count() Return the count of matched rows as a subquery
EBoolean	exists()
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()
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

addToProjection, getMetadata, 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

QueryBaseWithDetach

public QueryBaseWithDetach(QueryMetadata metadata)

Method Detail

count

public ObjectSubQuery<Long> count()

Description copied from interface: Detachable

Return the count of matched rows as a subquery

Specified by:

count in interface Detachable

Returns:

exists

public EBoolean exists()

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 <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()

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 <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