com.querydsl.core

Interface FetchableQuery<T,Q extends FetchableQuery<T,Q>>

Type Parameters:

T - element type

Q - concrete subtype

All Superinterfaces:

Fetchable<T>, FilteredClause<Q>, SimpleQuery<Q>

All Known Subinterfaces:

JDOQLQuery<T>, JPQLQuery<T>

All Known Implementing Classes:

AbstractCollQuery, AbstractHibernateQuery, AbstractHibernateSQLQuery, AbstractJDOQuery, AbstractJPAQuery, AbstractJPASQLQuery, AbstractSQLQuery, AbstractSQLQuery, AbstractSQLQuery, CollQuery, HibernateQuery, HibernateSQLQuery, JDOQuery, JDOSQLQuery, JPAQuery, JPAQueryBase, JPASQLQuery, MySQLQuery, OracleQuery, PostgreSQLQuery, ProjectableSQLQuery, SQLQuery, SQLServerQuery, TeradataQuery

public interface FetchableQuery<T,Q extends FetchableQuery<T,Q>>
extends SimpleQuery<Q>, Fetchable<T>

FetchableQuery extends Fetchable and SimpleQuery with projection changing methods and result aggregation functionality using ResultTransformer instances.

Method Summary

Modifier and Type	Method and Description
FetchableQuery<Tuple,?>	select(Expression<?>... exprs) Change the projection of this query
<U> FetchableQuery<U,?>	select(Expression<U> expr) Change the projection of this query
<S> S	transform(ResultTransformer<S> transformer) Apply the given transformer to this FetchableQuery instance and return the results

Methods inherited from interface com.querydsl.core.SimpleQuery

distinct, limit, offset, orderBy, restrict, set

Methods inherited from interface com.querydsl.core.FilteredClause

where

Methods inherited from interface com.querydsl.core.Fetchable

fetch, fetchCount, fetchFirst, fetchOne, fetchResults, iterate

Method Detail

select

<U> FetchableQuery<U,?> select(Expression<U> expr)

Change the projection of this query

Type Parameters:

U -

Parameters:

expr - new projection

Returns:

the current object

select

FetchableQuery<Tuple,?> select(Expression<?>... exprs)

Change the projection of this query

Parameters:

exprs - new projection

Returns:

the current object

transform

<S> S transform(ResultTransformer<S> transformer)

Apply the given transformer to this FetchableQuery instance and return the results

Type Parameters:

S -

Parameters:

transformer - result transformer

Returns:

transformed result