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ActiveMQ example source code file (BinaryExpression.java)
The ActiveMQ BinaryExpression.java source code/** * 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.activemq.filter; /** * An expression which performs an operation on two expression values. * * */ public abstract class BinaryExpression implements Expression { protected Expression left; protected Expression right; public BinaryExpression(Expression left, Expression right) { this.left = left; this.right = right; } public Expression getLeft() { return left; } public Expression getRight() { return right; } /** * @see java.lang.Object#toString() */ public String toString() { return "(" + left.toString() + " " + getExpressionSymbol() + " " + right.toString() + ")"; } /** * TODO: more efficient hashCode() * * @see java.lang.Object#hashCode() */ public int hashCode() { return toString().hashCode(); } /** * TODO: more efficient hashCode() * * @see java.lang.Object#equals(java.lang.Object) */ public boolean equals(Object o) { if (o == null || !this.getClass().equals(o.getClass())) { return false; } return toString().equals(o.toString()); } /** * Returns the symbol that represents this binary expression. For example, addition is * represented by "+" * * @return */ public abstract String getExpressionSymbol(); /** * @param expression */ public void setRight(Expression expression) { right = expression; } /** * @param expression */ public void setLeft(Expression expression) { left = expression; } } Other ActiveMQ examples (source code examples)Here is a short list of links related to this ActiveMQ BinaryExpression.java source code file: |
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