com.querydsl.collections

Class AbstractCollQuery<T,Q extends AbstractCollQuery<T,Q>>

java.lang.Object

com.querydsl.core.support.QueryBase<Q>

com.querydsl.core.support.FetchableQueryBase<T,Q>

com.querydsl.collections.AbstractCollQuery<T,Q>

Type Parameters:

T - result type

Q - concrete subtype

All Implemented Interfaces:

com.querydsl.core.Fetchable<T>, com.querydsl.core.FetchableQuery<T,Q>, com.querydsl.core.FilteredClause<Q>, com.querydsl.core.SimpleQuery<Q>

Direct Known Subclasses:

CollQuery

public abstract class AbstractCollQuery<T,Q extends AbstractCollQuery<T,Q>>
extends com.querydsl.core.support.FetchableQueryBase<T,Q>
implements com.querydsl.core.FetchableQuery<T,Q>

AbstractCollQuery provides a base class for Collection query implementations.

Author:

tiwe

See Also:

CollQuery

Field Summary

Fields inherited from class com.querydsl.core.support.QueryBase

MDC_PARAMETERS, MDC_QUERY, queryMixin

Constructor Summary

Constructors

Constructor and Description
AbstractCollQuery(com.querydsl.core.QueryMetadata metadata, QueryEngine queryEngine)

Method Summary

Modifier and Type	Method and Description
<A> Q	bind(com.querydsl.core.types.Path<A> entity, java.lang.Iterable<? extends A> col) Bind the given collection to an already existing query source
java.util.List<T>	fetch()
long	fetchCount()
T	fetchOne()
com.querydsl.core.QueryResults<T>	fetchResults()
<A> Q	from(com.querydsl.core.types.Path<A> entity, java.lang.Iterable<? extends A> col) Add a query source
protected com.querydsl.core.QueryMetadata	getMetadata()
protected QueryEngine	getQueryEngine()
Q	groupBy(com.querydsl.core.types.Expression<?>... o)
Q	groupBy(com.querydsl.core.types.Expression<?> e)
Q	having(com.querydsl.core.types.Predicate... e)
Q	having(com.querydsl.core.types.Predicate e)
<P> Q	innerJoin(com.querydsl.core.types.MapExpression<?,P> target, com.querydsl.core.types.Path<P> alias) Define an inner join from the Map typed path to the alias
<P> Q	innerJoin(com.querydsl.core.types.Path<? extends java.util.Collection<P>> target, com.querydsl.core.types.Path<P> alias) Define an inner join from the Collection typed path to the alias
com.mysema.commons.lang.CloseableIterator<T>	iterate()
<P> Q	leftJoin(com.querydsl.core.types.MapExpression<?,P> target, com.querydsl.core.types.Path<P> alias) Define a left join from the Map typed path to the alias
<P> Q	leftJoin(com.querydsl.core.types.Path<? extends java.util.Collection<P>> target, com.querydsl.core.types.Path<P> alias) Define a left join from the Collection typed path to the alias
java.util.stream.Stream<T>	stream()

Methods inherited from class com.querydsl.core.support.FetchableQueryBase

equals, fetchFirst, transform, uniqueResult

Methods inherited from class com.querydsl.core.support.QueryBase

distinct, hashCode, limit, offset, orderBy, orderBy, restrict, set, toString, where, where

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.querydsl.core.FetchableQuery

select, select, transform

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

fetchFirst

Constructor Detail

AbstractCollQuery

public AbstractCollQuery(com.querydsl.core.QueryMetadata metadata,
                         QueryEngine queryEngine)

Method Detail

fetchCount

public long fetchCount()

Specified by:

fetchCount in interface com.querydsl.core.Fetchable<T>

getMetadata

protected com.querydsl.core.QueryMetadata getMetadata()

from

public <A> Q from(com.querydsl.core.types.Path<A> entity,
                  java.lang.Iterable<? extends A> col)

Add a query source

Type Parameters:

A - type of expression

Parameters:

entity - Path for the source

col - content of the source

Returns:

current object

bind

public <A> Q bind(com.querydsl.core.types.Path<A> entity,
                  java.lang.Iterable<? extends A> col)

Bind the given collection to an already existing query source

Type Parameters:

A - type of expression

Parameters:

entity - Path for the source

col - content of the source

Returns:

current object

groupBy

public Q groupBy(com.querydsl.core.types.Expression<?> e)

Overrides:

groupBy in class com.querydsl.core.support.QueryBase<Q extends AbstractCollQuery<T,Q>>

groupBy

public Q groupBy(com.querydsl.core.types.Expression<?>... o)

Overrides:

groupBy in class com.querydsl.core.support.QueryBase<Q extends AbstractCollQuery<T,Q>>

having

public Q having(com.querydsl.core.types.Predicate e)

Overrides:

having in class com.querydsl.core.support.QueryBase<Q extends AbstractCollQuery<T,Q>>

having

public Q having(com.querydsl.core.types.Predicate... e)

Overrides:

having in class com.querydsl.core.support.QueryBase<Q extends AbstractCollQuery<T,Q>>

getQueryEngine

protected QueryEngine getQueryEngine()

innerJoin

public <P> Q innerJoin(com.querydsl.core.types.Path<? extends java.util.Collection<P>> target,
                       com.querydsl.core.types.Path<P> alias)

Define an inner join from the Collection typed path to the alias

Type Parameters:

P - type of expression

Parameters:

target - target of the join

alias - alias for the join target

Returns:

current object

innerJoin

public <P> Q innerJoin(com.querydsl.core.types.MapExpression<?,P> target,
                       com.querydsl.core.types.Path<P> alias)

Define an inner join from the Map typed path to the alias

Type Parameters:

P - type of expression

Parameters:

target - target of the join

alias - alias for the join target

Returns:

current object

leftJoin

public <P> Q leftJoin(com.querydsl.core.types.Path<? extends java.util.Collection<P>> target,
                      com.querydsl.core.types.Path<P> alias)

Define a left join from the Collection typed path to the alias

Type Parameters:

P - type of expression

Parameters:

target - target of the join

alias - alias for the join target

Returns:

current object

leftJoin

public <P> Q leftJoin(com.querydsl.core.types.MapExpression<?,P> target,
                      com.querydsl.core.types.Path<P> alias)

Define a left join from the Map typed path to the alias

Type Parameters:

P - type of expression

Parameters:

target - target of the join

alias - alias for the joint target

Returns:

current object

iterate

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

Specified by:

iterate in interface com.querydsl.core.Fetchable<T>

stream

public java.util.stream.Stream<T> stream()

Specified by:

stream in interface com.querydsl.core.Fetchable<T>

fetch

public java.util.List<T> fetch()

Specified by:

fetch in interface com.querydsl.core.Fetchable<T>

Overrides:

fetch in class com.querydsl.core.support.FetchableQueryBase<T,Q extends AbstractCollQuery<T,Q>>

fetchResults

public com.querydsl.core.QueryResults<T> fetchResults()

Specified by:

fetchResults in interface com.querydsl.core.Fetchable<T>

fetchOne

public T fetchOne()
           throws com.querydsl.core.NonUniqueResultException

Specified by:

fetchOne in interface com.querydsl.core.Fetchable<T>

Throws:

com.querydsl.core.NonUniqueResultException