com.querydsl.sql

Class UnionImpl<T,Q extends ProjectableSQLQuery<T,Q> & Query<Q>>

java.lang.Object

com.querydsl.sql.UnionImpl<T,Q>

Type Parameters:

T - result type

Q - concrete query type

All Implemented Interfaces:

Expression<T>, SubQueryExpression<T>, Union<T>, Serializable

public class UnionImpl<T,Q extends ProjectableSQLQuery<T,Q> & Query<Q>>
extends Object
implements Union<T>

Default implementation of the Union interface

Author:

tiwe

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
UnionImpl(Q query)

Method Summary

Methods

Modifier and Type	Method and Description
<R,C> R	accept(Visitor<R,C> v, C context)
Expression<T>	as(Path<T> alias) Create an alias for the expression
Expression<T>	as(String alias) Create an alias for the expression
QueryMetadata	getMetadata()
Class<? extends T>	getType()
Union<T>	groupBy(Expression<?>... o) Defines the grouping/aggregation expressions
Union<T>	having(Predicate... o) Defines the filters for aggregation
com.mysema.commons.lang.CloseableIterator<T>	iterate() Get the projection as a typed Iterator
List<T>	list() Get the projection as a typed List
Union<T>	orderBy(OrderSpecifier<?>... o) Define the ordering of the query results
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

UnionImpl

public UnionImpl(Q query)

Method Detail

list

public List<T> list()

Description copied from interface: Union

Get the projection as a typed List

Specified by:

list in interface Union<T>

Returns:

results

iterate

public com.mysema.commons.lang.CloseableIterator<T> iterate()

Description copied from interface: Union

Get the projection as a typed Iterator

Specified by:

iterate in interface Union<T>

Returns:

result iterator

groupBy

public Union<T> groupBy(Expression<?>... o)

Description copied from interface: Union

Defines the grouping/aggregation expressions

Specified by:

groupBy in interface Union<T>

Parameters:

o - group by

Returns:

the current object

having

public Union<T> having(Predicate... o)

Description copied from interface: Union

Defines the filters for aggregation

Specified by:

having in interface Union<T>

Parameters:

o - having conditions

Returns:

the current object

orderBy

public Union<T> orderBy(OrderSpecifier<?>... o)

Description copied from interface: Union

Define the ordering of the query results

Specified by:

orderBy in interface Union<T>

Parameters:

o - order

Returns:

the current object

as

public Expression<T> as(String alias)

Description copied from interface: Union

Create an alias for the expression

Specified by:

as in interface Union<T>

Parameters:

alias - alias

Returns:

this as alias

as

public Expression<T> as(Path<T> alias)

Description copied from interface: Union

Create an alias for the expression

Specified by:

as in interface Union<T>

Parameters:

alias - alias

Returns:

this as alias

toString

public String toString()

Overrides:

toString in class Object

accept

@Nullable
public <R,C> R accept(Visitor<R,C> v,
                      @Nullable
                      C context)

Specified by:

accept in interface Expression<T>

getType

public Class<? extends T> getType()

Specified by:

getType in interface Expression<T>

getMetadata

public QueryMetadata getMetadata()

Specified by:

getMetadata in interface SubQueryExpression<T>