/*
* Copyright 2011, Mysema Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.mysema.query.jpa;
import com.mysema.query.DefaultQueryMetadata;
import com.mysema.query.JoinExpression;
import com.mysema.query.JoinType;
import com.mysema.query.QueryMetadata;
import com.mysema.query.support.DetachableQuery;
import com.mysema.query.support.Expressions;
import com.mysema.query.types.*;
import com.mysema.query.types.query.NumberSubQuery;
import com.mysema.query.types.template.NumberTemplate;
/**
* Abstract superclass for SubQuery implementations
*
* @author tiwe
*
* @param <Q> concrete subtype
*/
public class AbstractJPASubQuery<Q extends AbstractJPASubQuery<Q>> extends DetachableQuery<Q> implements JPQLSubQuery {
private final JPAQueryMixin<Q> queryMixin;
public AbstractJPASubQuery() {
this(new DefaultQueryMetadata().noValidate());
}
@SuppressWarnings("unchecked")
public AbstractJPASubQuery(QueryMetadata metadata) {
super(new JPAQueryMixin<Q>(metadata));
super.queryMixin.setSelf((Q)this);
this.queryMixin = (JPAQueryMixin<Q>) super.queryMixin;
}
@Override
public NumberSubQuery<Long> count() {
StringBuilder count = new StringBuilder();
for (JoinExpression join : queryMixin.getMetadata().getJoins()) {
if (join.getType() == JoinType.DEFAULT) {
count.append(count.length() == 0 ? "count(" : ", ");
count.append(join.getTarget().toString());
}
}
count.append(")");
return unique(NumberTemplate.create(Long.class, count.toString()));
}
public Q from(EntityPath<?> o) {
return queryMixin.from(o);
}
@Override
public Q from(EntityPath<?>... o) {
return queryMixin.from(o);
}
@Override
public <P> Q from(CollectionExpression<?,P> target, Path<P> alias) {
return queryMixin.fullJoin(Expressions.as((Path)target, alias));
}
@Override
@Deprecated
public <P> Q fullJoin(CollectionExpression<?,P> target) {
return queryMixin.fullJoin(target);
}
@Override
@Deprecated
public <P> Q fullJoin(CollectionExpression<?,P> target, Path<P> alias) {
return queryMixin.fullJoin(target, alias);
}
@Override
@Deprecated
public <P> Q fullJoin(EntityPath<P> target) {
return queryMixin.fullJoin(target);
}
@Override
@Deprecated
public <P> Q fullJoin(EntityPath<P> target, Path<P> alias) {
return queryMixin.fullJoin(target, alias);
}
@Override
@Deprecated
public <P> Q fullJoin(MapExpression<?,P> target) {
return queryMixin.fullJoin(target);
}
@Override
@Deprecated
public <P> Q fullJoin(MapExpression<?,P> target, Path<P> alias) {
return queryMixin.fullJoin(target, alias);
}
@Override
public <P> Q innerJoin(CollectionExpression<?,P> target) {
return queryMixin.innerJoin(target);
}
@Override
public <P> Q innerJoin(CollectionExpression<?,P> target, Path<P> alias) {
return queryMixin.innerJoin(target, alias);
}
@Override
public <P> Q innerJoin(EntityPath<P> target) {
return queryMixin.innerJoin(target);
}
@Override
public <P> Q innerJoin(EntityPath<P> target, Path<P> alias) {
return queryMixin.innerJoin(target, alias);
}
@Override
public <P> Q innerJoin(MapExpression<?,P> target) {
return queryMixin.innerJoin(target);
}
@Override
public <P> Q innerJoin(MapExpression<?,P> target, Path<P> alias) {
return queryMixin.innerJoin(target, alias);
}
@Override
public <P> Q join(CollectionExpression<?,P> target) {
return queryMixin.join(target);
}
@Override
public <P> Q join(CollectionExpression<?,P> target, Path<P> alias) {
return queryMixin.join(target, alias);
}
@Override
public <P> Q join(EntityPath<P> target) {
return queryMixin.join(target);
}
@Override
public <P> Q join(EntityPath<P> target, Path<P> alias) {
return queryMixin.join(target, alias);
}
@Override
public <P> Q join(MapExpression<?,P> target) {
return queryMixin.join(target);
}
@Override
public <P> Q join(MapExpression<?,P> target, Path<P> alias) {
return queryMixin.join(target, alias);
}
@Override
public <P> Q leftJoin(CollectionExpression<?,P> target) {
return queryMixin.leftJoin(target);
}
@Override
public <P> Q leftJoin(CollectionExpression<?,P> target, Path<P> alias) {
return queryMixin.leftJoin(target, alias);
}
@Override
public <P> Q leftJoin(EntityPath<P> target) {
return queryMixin.leftJoin(target);
}
@Override
public <P> Q leftJoin(EntityPath<P> target, Path<P> alias) {
return queryMixin.leftJoin(target, alias);
}
@Override
public <P> Q leftJoin(MapExpression<?,P> target) {
return queryMixin.leftJoin(target);
}
@Override
public <P> Q leftJoin(MapExpression<?,P> target, Path<P> alias) {
return queryMixin.leftJoin(target, alias);
}
@Override
public <P> Q rightJoin(CollectionExpression<?,P> target) {
return queryMixin.rightJoin(target);
}
@Override
public <P> Q rightJoin(CollectionExpression<?,P> target, Path<P> alias) {
return queryMixin.rightJoin(target, alias);
}
@Override
public <P> Q rightJoin(EntityPath<P> target) {
return queryMixin.rightJoin(target);
}
@Override
public <P> Q rightJoin(EntityPath<P> target, Path<P> alias) {
return queryMixin.rightJoin(target, alias);
}
@Override
public <P> Q rightJoin(MapExpression<?,P> target) {
return queryMixin.rightJoin(target);
}
@Override
public <P> Q rightJoin(MapExpression<?,P> target, Path<P> alias) {
return queryMixin.rightJoin(target, alias);
}
public Q on(Predicate condition) {
return queryMixin.on(condition);
}
@Override
public Q on(Predicate... conditions) {
return queryMixin.on(conditions);
}
@Override
public Q limit(long l) {
throw new UnsupportedOperationException("JPQL doesn't support limit on subqueries");
}
@Override
public Q offset(long o) {
throw new UnsupportedOperationException("JPQL doesn't support offset on subqueries");
}
@Override
public String toString() {
if (!queryMixin.getMetadata().getJoins().isEmpty()) {
JPQLSerializer serializer = new JPQLSerializer(JPQLTemplates.DEFAULT, null);
serializer.setStrict(false);
serializer.serialize(queryMixin.getMetadata(), false, null);
return serializer.toString().trim();
} else {
return super.toString();
}
}
}