| /* |
| * 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.cas.catalog.query; |
| |
| /** |
| * @author bfoster |
| * @version $Revision$ |
| * |
| * <p> |
| * A TermQueryExpression which allows Term comparison |
| * <p> |
| */ |
| public class ComparisonQueryExpression extends TermQueryExpression { |
| |
| public static enum Operator { EQUAL_TO("=="), LESS_THAN_EQUAL_TO("<="), GREATER_THAN_EQUAL_TO(">="), LESS_THAN("<"), GREATER_THAN(">"), LIKE("LIKE"); |
| |
| private String value; |
| |
| Operator(String value) { |
| this.value = value; |
| } |
| |
| public static Operator getOperatorBySign(String sign) { |
| if (EQUAL_TO.value.equals(sign)) |
| return EQUAL_TO; |
| else if (LESS_THAN_EQUAL_TO.value.equals(sign)) |
| return LESS_THAN_EQUAL_TO; |
| else if (GREATER_THAN_EQUAL_TO.value.equals(sign)) |
| return GREATER_THAN_EQUAL_TO; |
| else if (LESS_THAN.value.equals(sign)) |
| return LESS_THAN; |
| else if (GREATER_THAN.value.equals(sign)) |
| return GREATER_THAN; |
| else if (LIKE.value.equals(sign)) |
| return LIKE; |
| else |
| throw new IllegalArgumentException("Not matching operator for '" + sign + "'"); |
| } |
| |
| public String toString() { |
| return this.value; |
| } |
| |
| } |
| protected Operator operator; |
| |
| public void setOperator(Operator operator) { |
| this.operator = operator; |
| } |
| |
| public Operator getOperator() { |
| return this.operator; |
| } |
| |
| @Override |
| public String toString() { |
| return "({" + this.bucketNames + "} " + this.getTerm().getName() + " " + this.operator + " " + this.getTerm().getValues() + ")"; |
| } |
| |
| @Override |
| public ComparisonQueryExpression clone() { |
| ComparisonQueryExpression newQE = new ComparisonQueryExpression(); |
| newQE.operator = this.operator; |
| newQE.setTerm(this.term.clone()); |
| newQE.setBucketNames(this.getBucketNames()); |
| return newQE; |
| } |
| |
| } |