/*******************************************************************************
* Copyright 2013 SAP AG
*
* 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.sap.core.odata.api.uri.expression;
/**
* Represents a binary expression node in the expression tree returned by the methods
* <li>{@link com.sap.core.odata.api.uri.UriParser#parseFilterString(com.sap.core.odata.api.edm.EdmEntityType, String)}</li>
* <li>{@link com.sap.core.odata.api.uri.UriParser#parseOrderByString(com.sap.core.odata.api.edm.EdmEntityType, String)}</li>
* <br>
* <br>
* A binary expression node is inserted in the expression tree for any valid
* ODATA binary operator in {@link BinaryOperator} (e.g. for "and", "div", "eg", ... )
* <br>
* @author SAP AG
*/
public interface BinaryExpression extends CommonExpression {
/**
* @return Operator object that represents the used operator
* @see BinaryOperator
*/
public BinaryOperator getOperator();
/**
* @return Expression sub tree of the left operand
*/
public CommonExpression getLeftOperand();
/**
* @return Expression sub tree of the right operand
*/
public CommonExpression getRightOperand();
}