| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.oodt.xmlps.queryparser; |
| |
| /** |
| * |
| * A logical expression with a left-hand side |
| * and right hind-side {@link Expression}. |
| * |
| */ |
| public class LogOpExpression implements Expression { |
| |
| private String logop; |
| |
| private Expression lhs; |
| |
| private Expression rhs; |
| |
| |
| |
| public LogOpExpression(String logop, Expression lhs, Expression rhs) { |
| this.lhs = lhs; |
| this.rhs = rhs; |
| this.logop = logop; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.oodt.xmlps.queryparser.Expression#evaluate() |
| */ |
| public String evaluate() { |
| return "(" + lhs.evaluate() + " " + logop + " " + rhs.evaluate() + ")"; |
| } |
| |
| /** |
| * @return the lhs |
| */ |
| public Expression getLhs() { |
| return lhs; |
| } |
| |
| /** |
| * @param lhs the lhs to set |
| */ |
| public void setLhs(Expression lhs) { |
| this.lhs = lhs; |
| } |
| |
| /** |
| * @return the rhs |
| */ |
| public Expression getRhs() { |
| return rhs; |
| } |
| |
| /** |
| * @param rhs the rhs to set |
| */ |
| public void setRhs(Expression rhs) { |
| this.rhs = rhs; |
| } |
| |
| } |