com.querydsl.jpa.JPQLQueryFactory Maven / Gradle / Ivy
/*
* Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
*
* 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.querydsl.jpa;
import com.querydsl.core.QueryFactory;
import com.querydsl.core.Tuple;
import com.querydsl.core.dml.DeleteClause;
import com.querydsl.core.dml.UpdateClause;
import com.querydsl.core.types.EntityPath;
import com.querydsl.core.types.Expression;
/**
* Common interface for JPA related QueryFactory implementations
*
* @author tiwe
*
*/
public interface JPQLQueryFactory extends QueryFactory> {
/**
* Create a new DELETE clause
*
* @param path entity to delete from
* @return delete clause
*/
DeleteClause delete(EntityPath path);
/**
* Create a new JPQLQuery instance with the given projection
*
* @param expr projection
* @param
* @return select(expr)
*/
JPQLQuery select(Expression expr);
/**
* Create a new JPQLQuery instance with the given projection
*
* @param exprs projection
* @return select(exprs)
*/
JPQLQuery select(Expression... exprs);
/**
* Create a new JPQLQuery instance with the given projection
*
* @param expr projection
* @param
* @return select(distinct expr)
*/
JPQLQuery selectDistinct(Expression expr);
/**
* Create a new JPQLQuery instance with the given projection
*
* @param exprs projection
* @return select(distinct exprs)
*/
JPQLQuery selectDistinct(Expression... exprs);
/**
* Create a new JPQLQuery instance with the projection one
*
* @return select(1)
*/
JPQLQuery selectOne();
/**
* Create a new JPQLQuery instance with the projection zero
*
* @return select(0)
*/
JPQLQuery selectZero();
/**
* Create a new JPQLQuery instance with the given source and projection
*
* @param from projection and source
* @param
* @return select(from).from(from)
*/
JPQLQuery selectFrom(EntityPath from);
/**
* Create a new Query with the given source
*
* @param from from
* @return from(from)
*/
JPQLQuery from(EntityPath from);
/**
* Create a new Query with the given source
*
* @param from from
* @return from(from)
*/
JPQLQuery from(EntityPath... from);
/**
* Create a new UPDATE clause
*
* @param path entity to update
* @return update clause
*/
UpdateClause update(EntityPath path);
}