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Commons Beanutils example source code file (

This example Commons Beanutils source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Beanutils tags/keywords

beanpredicate, beanpredicate, beanpredicatetestcase, beanpredicatetestcase, equalpredicate, equalpredicate, instanceofpredicate, notpredicate, string, testbean, testbean, testcase

The Commons Beanutils 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.apache.commons.beanutils;

import junit.framework.TestCase;

import org.apache.commons.collections.functors.EqualPredicate;
import org.apache.commons.collections.functors.InstanceofPredicate;
import org.apache.commons.collections.functors.NotPredicate;
import org.apache.commons.collections.functors.NullPredicate;

public class BeanPredicateTestCase extends TestCase {
    public BeanPredicateTestCase(String name) {

    public void testEqual() {
        BeanPredicate predicate = 
            new BeanPredicate("stringProperty",new EqualPredicate("foo"));
        assertTrue(predicate.evaluate(new TestBean("foo")));
        assertTrue(!predicate.evaluate(new TestBean("bar")));

    public void testNotEqual() {
        BeanPredicate predicate = 
            new BeanPredicate("stringProperty",new NotPredicate( new EqualPredicate("foo")));
        assertTrue(!predicate.evaluate(new TestBean("foo")));
        assertTrue(predicate.evaluate(new TestBean("bar")));

    public void testInstanceOf() {
        BeanPredicate predicate = 
            new BeanPredicate("stringProperty",new InstanceofPredicate( String.class ));
        assertTrue(predicate.evaluate(new TestBean("foo")));
        assertTrue(predicate.evaluate(new TestBean("bar")));

    public void testNull() {
        BeanPredicate predicate = 
            new BeanPredicate("stringProperty", NullPredicate.INSTANCE);
        String nullString = null;
        assertTrue(predicate.evaluate(new TestBean(nullString)));
        assertTrue(!predicate.evaluate(new TestBean("bar")));


Other Commons Beanutils examples (source code examples)

Here is a short list of links related to this Commons Beanutils source code file:

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