/*
* 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.types;
import java.util.List;
/**
* {@code Operation} represents an operation with operator and arguments
*
* @author tiwe
* @param <T> expression type
*/
public interface Operation<T> extends Expression<T> {
/**
* Get the argument with the given index
*
* @param index zero based index of expression
* @return expression at index
*/
Expression<?> getArg(int index);
/**
* Get the arguments of this operation
*
* @return arguments
*/
List<Expression<?>> getArgs();
/**
* Get the operator symbol for this operation
*
* @return operator
*/
Operator getOperator();
}