| /** |
| * 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 relational operator. |
| */ |
| public class RelOpExpression implements Expression { |
| |
| private String relop; |
| |
| private Expression literal; |
| |
| private String lhs; |
| |
| public RelOpExpression(String relop, String lhs, Expression literal) { |
| this.relop = relop; |
| this.lhs = lhs; |
| this.literal = literal; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.oodt.xmlps.queryparser.Expression#evaluate() |
| */ |
| public String evaluate() { |
| return lhs + " " + relop + " " + literal.evaluate(); |
| } |
| |
| /** |
| * @return the lhs |
| */ |
| public String getLhs() { |
| return lhs; |
| } |
| |
| /** |
| * @param lhs the lhs to set |
| */ |
| public void setLhs(String lhs) { |
| this.lhs = lhs; |
| } |
| |
| /** |
| * @return the literal |
| */ |
| public Expression getLiteral() { |
| return literal; |
| } |
| |
| /** |
| * @param literal the literal to set |
| */ |
| public void setLiteral(Expression literal) { |
| this.literal = literal; |
| } |
| |
| } |