/*
* 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.core;
import com.querydsl.core.types.Expression;
import com.querydsl.core.types.Predicate;
/**
* {@code Query} defines the main query interface of the fluent query language.
*
* <p>Note that the from method has been left out, since there are implementation
* specific variants of it.</p>
*
* @author tiwe
* @see SimpleQuery
*
* @param <Q> concrete subtype
*/
public interface Query<Q extends Query<Q>> extends SimpleQuery<Q> {
/**
* Add grouping/aggregation expressions
*
* @param o group by expressions
* @return the current object
*/
Q groupBy(Expression<?>... o);
/**
* Add filters for aggregation
*
* @param o having conditions
* @return the current object
*/
Q having(Predicate... o);
}