com.mysema.query.support

Class DetachableQuery<Q extends DetachableQuery<Q>>

java.lang.Object

com.mysema.query.support.QueryBase<Q>

com.mysema.query.support.DetachableQuery<Q>

Type Parameters:

Q - concrete subtype

All Implemented Interfaces:

Detachable

Direct Known Subclasses:

AbstractJDOSubQuery, AbstractJPASubQuery, AbstractSQLSubQuery

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

DetachableQuery is a base class for queries which implement the Query and Detachable interfaces

Author:

tiwe

Field Summary

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

queryMixin

Constructor Summary

Constructors

Constructor and Description
DetachableQuery(QueryMixin<Q> queryMixin)

Method Summary

Methods

Modifier and Type	Method and Description
NumberSubQuery<java.lang.Long>	count() Return the count of matched rows as a sub query
BooleanExpression	exists() Create an exists(this) expression
ListSubQuery<Tuple>	list(Expression<?>... args) Create a projection expression for the given projection
<RT> ListSubQuery<RT>	list(Expression<RT> projection) Create a projection expression for the given projection
ListSubQuery<Tuple>	list(java.lang.Object... args) Create a projection expression for the given projection Non expression arguments are converted into constant expressions
ListSubQuery<Tuple>	list(java.lang.Object arg)
BooleanExpression	notExists() Create an not exists(this) expression
<RT extends java.lang.Comparable<?>> ComparableSubQuery<RT>	unique(ComparableExpression<RT> projection) Create a subquery expression for the given projection
<RT extends java.lang.Comparable<?>> DateSubQuery<RT>	unique(DateExpression<RT> projection) Create a subquery expression for the given projection
<RT extends java.lang.Comparable<?>> DateTimeSubQuery<RT>	unique(DateTimeExpression<RT> projection) Create a subquery expression for the given projection
SimpleSubQuery<Tuple>	unique(Expression<?>... args) Create a projection expression for the given projection
<RT> SimpleSubQuery<RT>	unique(Expression<RT> projection) Create a subquery expression for the given projection
<RT extends java.lang.Number & java.lang.Comparable<?>> NumberSubQuery<RT>	unique(NumberExpression<RT> projection) Create a subquery expression for the given projection
SimpleSubQuery<Tuple>	unique(java.lang.Object... args) Create a projection expression for the given projection Non expression arguments are converted into constant expressions
BooleanSubQuery	unique(Predicate projection) Create a subquery expression for the given projection
StringSubQuery	unique(StringExpression projection) Create a subquery expression for the given projection
<RT extends java.lang.Comparable<?>> TimeSubQuery<RT>	unique(TimeExpression<RT> projection) Create a subquery expression for the given projection

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

distinct, equals, groupBy, groupBy, hashCode, having, having, limit, offset, orderBy, orderBy, restrict, set, toString, where, where

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DetachableQuery

public DetachableQuery(QueryMixin<Q> queryMixin)

Method Detail

count

public NumberSubQuery<java.lang.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 BooleanExpression exists()

Description copied from interface: Detachable

Create an exists(this) expression

Specified by:

exists in interface Detachable

Returns:

list

public ListSubQuery<Tuple> list(Expression<?>... args)

Description copied from interface: Detachable

Create a projection expression for the given projection

Specified by:

list in interface Detachable

Returns:

list

public <RT> ListSubQuery<RT> list(Expression<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

list

public ListSubQuery<Tuple> list(java.lang.Object arg)

list

public ListSubQuery<Tuple> list(java.lang.Object... args)

Description copied from interface: Detachable

Create a projection expression for the given projection Non expression arguments are converted into constant expressions

Specified by:

list in interface Detachable

Returns:

notExists

public BooleanExpression notExists()

Description copied from interface: Detachable

Create an not exists(this) expression

Specified by:

notExists in interface Detachable

Returns:

unique

public <RT extends java.lang.Comparable<?>> ComparableSubQuery<RT> unique(ComparableExpression<RT> projection)

Description copied from interface: Detachable

Create a subquery expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public <RT extends java.lang.Comparable<?>> DateSubQuery<RT> unique(DateExpression<RT> projection)

Description copied from interface: Detachable

Create a subquery expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public <RT extends java.lang.Comparable<?>> DateTimeSubQuery<RT> unique(DateTimeExpression<RT> projection)

Description copied from interface: Detachable

Create a subquery expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public SimpleSubQuery<Tuple> unique(Expression<?>... args)

Description copied from interface: Detachable

Create a projection expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public <RT> SimpleSubQuery<RT> unique(Expression<RT> projection)

Description copied from interface: Detachable

Create a subquery 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

unique

public <RT extends java.lang.Number & java.lang.Comparable<?>> NumberSubQuery<RT> unique(NumberExpression<RT> projection)

Description copied from interface: Detachable

Create a subquery expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public BooleanSubQuery unique(Predicate projection)

Description copied from interface: Detachable

Create a subquery expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public StringSubQuery unique(StringExpression projection)

Description copied from interface: Detachable

Create a subquery expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public <RT extends java.lang.Comparable<?>> TimeSubQuery<RT> unique(TimeExpression<RT> projection)

Description copied from interface: Detachable

Create a subquery expression for the given projection

Specified by:

unique in interface Detachable

Returns:

unique

public SimpleSubQuery<Tuple> unique(java.lang.Object... args)

Description copied from interface: Detachable

Create a projection expression for the given projection Non expression arguments are converted into constant expressions

Specified by:

unique in interface Detachable

Returns: