Spring Framework example source code file (AssignableTypeFilterTests.java)

This example Spring Framework source code file (AssignableTypeFilterTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

assignabletypefilter, assignabletypefilter, exception, exception, metadatareader, metadatareaderfactory, simplemetadatareaderfactory, simplemetadatareaderfactory, somedaolikeimpl, somedaolikeinterface, string, string, testinterface, testnoninheritingclass

The Spring Framework AssignableTypeFilterTests.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * Licensed 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.springframework.core.type;

import junit.framework.TestCase;

import org.springframework.core.type.classreading.MetadataReaderFactory;
import org.springframework.core.type.classreading.MetadataReader;
import org.springframework.core.type.classreading.SimpleMetadataReaderFactory;
import org.springframework.core.type.filter.AssignableTypeFilter;
import org.springframework.jdbc.core.simple.SimpleJdbcDaoSupport;
import org.springframework.jdbc.core.support.JdbcDaoSupport;

/**
 * @author Ramnivas Laddad
 * @author Juergen Hoeller
 */
public class AssignableTypeFilterTests extends TestCase {

	public void testDirectMatch() throws Exception {
		MetadataReaderFactory metadataReaderFactory = new SimpleMetadataReaderFactory();
		String classUnderTest = "org.springframework.core.type.AssignableTypeFilterTests$TestNonInheritingClass";
		MetadataReader metadataReader = metadataReaderFactory.getMetadataReader(classUnderTest);

		AssignableTypeFilter matchingFilter = new AssignableTypeFilter(TestNonInheritingClass.class);
		AssignableTypeFilter notMatchingFilter = new AssignableTypeFilter(TestInterface.class);
		assertFalse(notMatchingFilter.match(metadataReader, metadataReaderFactory));
		assertTrue(matchingFilter.match(metadataReader, metadataReaderFactory));
	}
	
	public void testInterfaceMatch() throws Exception {
		MetadataReaderFactory metadataReaderFactory = new SimpleMetadataReaderFactory();
		String classUnderTest = "org.springframework.core.type.AssignableTypeFilterTests$TestInterfaceImpl";
		MetadataReader metadataReader = metadataReaderFactory.getMetadataReader(classUnderTest);

		AssignableTypeFilter filter = new AssignableTypeFilter(TestInterface.class);
		assertTrue(filter.match(metadataReader, metadataReaderFactory));
		ClassloadingAssertions.assertClassNotLoaded(classUnderTest);
	}
	
	public void testSuperClassMatch() throws Exception {
		MetadataReaderFactory metadataReaderFactory = new SimpleMetadataReaderFactory();
		String classUnderTest = "org.springframework.core.type.AssignableTypeFilterTests$SomeDaoLikeImpl";
		MetadataReader metadataReader = metadataReaderFactory.getMetadataReader(classUnderTest);

		AssignableTypeFilter filter = new AssignableTypeFilter(SimpleJdbcDaoSupport.class);
		assertTrue(filter.match(metadataReader, metadataReaderFactory));
		ClassloadingAssertions.assertClassNotLoaded(classUnderTest);
	}
	
	public void testInterfaceThroughSuperClassMatch() throws Exception {
		MetadataReaderFactory metadataReaderFactory = new SimpleMetadataReaderFactory();
		String classUnderTest = "org.springframework.core.type.AssignableTypeFilterTests$SomeDaoLikeImpl";
		MetadataReader metadataReader = metadataReaderFactory.getMetadataReader(classUnderTest);

		AssignableTypeFilter filter = new AssignableTypeFilter(JdbcDaoSupport.class);
		assertTrue(filter.match(metadataReader, metadataReaderFactory));
		ClassloadingAssertions.assertClassNotLoaded(classUnderTest);
	}


	// We must use a standalone set of types to ensure that no one else is loading them
	// and interfere with ClassloadingAssertions.assertClassNotLoaded()
	private static class TestNonInheritingClass {
	}


	private static interface TestInterface {
	}


	private static class TestInterfaceImpl implements TestInterface {
	}


	private static interface SomeDaoLikeInterface {
	}


	private static class SomeDaoLikeImpl extends SimpleJdbcDaoSupport implements SomeDaoLikeInterface {
	}

}