com.querydsl.sql

Interface Union<RT>

Type Parameters:

RT - return type of projection

All Superinterfaces:

Expression<RT>, Fetchable<RT>, Serializable, SubQueryExpression<RT>

All Known Implementing Classes:

UnionImpl

public interface Union<RT>
extends SubQueryExpression<RT>, Fetchable<RT>

Union defines an interface for Union queries

Author:

tiwe

Method Summary

Modifier and Type	Method and Description
Expression<RT>	as(Path<RT> alias) Create an alias for the expression
Expression<RT>	as(String alias) Create an alias for the expression
Union<RT>	groupBy(Expression<?>... o) Defines the grouping/aggregation expressions
Union<RT>	having(Predicate... o) Defines the filters for aggregation
com.mysema.commons.lang.CloseableIterator<RT>	iterate() Get the projection as a typed Iterator
List<RT>	list() Deprecated. Use Fetchable.fetch()
Union<RT>	orderBy(OrderSpecifier<?>... o) Define the ordering of the query results

Methods inherited from interface com.querydsl.core.types.SubQueryExpression

getMetadata

Methods inherited from interface com.querydsl.core.types.Expression

accept, getType

Methods inherited from interface com.querydsl.core.Fetchable

fetch, fetchCount, fetchFirst, fetchOne, fetchResults

Method Detail

list

@Deprecated
List<RT> list()

Deprecated. Use Fetchable.fetch()

Get the projection as a typed List

iterate

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

Get the projection as a typed Iterator

Specified by:

iterate in interface Fetchable<RT>

Returns:

result iterator

groupBy

Union<RT> groupBy(Expression<?>... o)

Defines the grouping/aggregation expressions

Parameters:

o - group by

Returns:

the current object

having

Union<RT> having(Predicate... o)

Defines the filters for aggregation

Parameters:

o - having conditions

Returns:

the current object

orderBy

Union<RT> orderBy(OrderSpecifier<?>... o)

Define the ordering of the query results

Parameters:

o - order

Returns:

the current object

as

Expression<RT> as(String alias)

Create an alias for the expression

Parameters:

alias - alias

Returns:

this as alias

as

Expression<RT> as(Path<RT> alias)

Create an alias for the expression

Parameters:

alias - alias

Returns:

this as alias