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Lookup methods can support arguments, find a target bean based on the return type, and be identified by an @Lookup annotation

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Issue: SPR-7431
Issue: SPR-5192
This commit is contained in:
Juergen Hoeller
2014-08-14 23:49:05 +02:00
parent e753f23110
commit eb0ab8431b
11 changed files with 428 additions and 57 deletions
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116
spring-beans/src/test/java/org/springframework/beans/factory/annotation/LookupAnnotationTests.java Normal file
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/*
* Copyright 2002-2014 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.beans.factory.annotation;
import org.junit.Before;
import org.junit.Test;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.tests.sample.beans.TestBean;
import static org.junit.Assert.*;
/**
* @author Karl Pietrzak
* @author Juergen Hoeller
*/
public class LookupAnnotationTests {
private DefaultListableBeanFactory beanFactory;
@Before
public void setUp() {
beanFactory = new DefaultListableBeanFactory();
AutowiredAnnotationBeanPostProcessor aabpp = new AutowiredAnnotationBeanPostProcessor();
aabpp.setBeanFactory(beanFactory);
beanFactory.addBeanPostProcessor(aabpp);
beanFactory.registerBeanDefinition("abstractBean", new RootBeanDefinition(AbstractBean.class));
RootBeanDefinition tbd = new RootBeanDefinition(TestBean.class);
tbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
beanFactory.registerBeanDefinition("testBean", tbd);
}
@Test
public void testWithoutConstructorArg() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
Object expected = bean.get();
assertEquals(TestBean.class, expected.getClass());
}
@Test
public void testWithOverloadedArg() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
TestBean expected = bean.get("haha");
assertEquals(TestBean.class, expected.getClass());
assertEquals("haha", expected.getName());
}
@Test
public void testWithOneConstructorArg() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
TestBean expected = bean.getOneArgument("haha");
assertEquals(TestBean.class, expected.getClass());
assertEquals("haha", expected.getName());
}
@Test
public void testWithTwoConstructorArg() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
TestBean expected = bean.getTwoArguments("haha", 72);
assertEquals(TestBean.class, expected.getClass());
assertEquals("haha", expected.getName());
assertEquals(72, expected.getAge());
}
@Test
public void testWithThreeArgsShouldFail() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
try {
bean.getThreeArguments("name", 1, 2);
fail("TestBean does not have a three arg constructor so this should not have worked");
}
catch (AbstractMethodError ex) {
}
}
public static abstract class AbstractBean {
@Lookup
public abstract TestBean get();
@Lookup
public abstract TestBean get(String name); // overloaded
@Lookup
public abstract TestBean getOneArgument(String name);
@Lookup
public abstract TestBean getTwoArguments(String name, int age);
public abstract TestBean getThreeArguments(String name, int age, int anotherArg);
}
}

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spring-beans/src/test/java/org/springframework/beans/factory/support/LookupMethodTests.java Normal file
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/*
* Copyright 2002-2014 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.beans.factory.support;
import org.junit.Before;
import org.junit.Test;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.core.io.ClassPathResource;
import org.springframework.tests.sample.beans.TestBean;
import static org.junit.Assert.*;
/**
* @author Karl Pietrzak
* @author Juergen Hoeller
*/
public class LookupMethodTests {
private DefaultListableBeanFactory beanFactory;
@Before
public void setUp() {
beanFactory = new DefaultListableBeanFactory();
XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(beanFactory);
reader.loadBeanDefinitions(new ClassPathResource("lookupMethodTests.xml", getClass()));
}
@Test
public void testWithoutConstructorArg() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
Object expected = bean.get();
assertEquals(TestBean.class, expected.getClass());
}
@Test
public void testWithOverloadedArg() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
TestBean expected = bean.get("haha");
assertEquals(TestBean.class, expected.getClass());
assertEquals("haha", expected.getName());
}
@Test
public void testWithOneConstructorArg() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
TestBean expected = bean.getOneArgument("haha");
assertEquals(TestBean.class, expected.getClass());
assertEquals("haha", expected.getName());
}
@Test
public void testWithTwoConstructorArg() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
TestBean expected = bean.getTwoArguments("haha", 72);
assertEquals(TestBean.class, expected.getClass());
assertEquals("haha", expected.getName());
assertEquals(72, expected.getAge());
}
@Test
public void testWithThreeArgsShouldFail() {
AbstractBean bean = (AbstractBean) beanFactory.getBean("abstractBean");
assertNotNull(bean);
try {
bean.getThreeArguments("name", 1, 2);
fail("TestBean does not have a three arg constructor so this should not have worked");
}
catch (AbstractMethodError ex) {
}
}
public static abstract class AbstractBean {
public abstract TestBean get();
public abstract TestBean get(String name); // overloaded
public abstract TestBean getOneArgument(String name);
public abstract TestBean getTwoArguments(String name, int age);
public abstract TestBean getThreeArguments(String name, int age, int anotherArg);
}
}

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spring-beans/src/test/java/org/springframework/beans/factory/support/lookupMethodTests.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd">
<bean id="abstractBean" class="org.springframework.beans.factory.support.LookupMethodTests$AbstractBean">
<lookup-method name="get"/> <!-- applying to overloaded methods, and based on return type since no bean name is given -->
<lookup-method name="getOneArgument" bean="testBean"/>
<lookup-method name="getTwoArguments" bean="testBean"/>
</bean>
<bean id="testBean" class="org.springframework.tests.sample.beans.TestBean" scope="prototype"/>
</beans>