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/*
 * Copyright 2002-2013 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
 *
 *      https://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;

import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.lang.reflect.Method;

import org.springframework.core.Ordered;
import org.springframework.lang.Nullable;

/**
 * {@link BeanInfoFactory} implementation that evaluates whether bean classes have
 * "non-standard" JavaBeans setter methods and are thus candidates for introspection
 * by Spring's (package-visible) {@code ExtendedBeanInfo} implementation.
 *
 * 

Ordered at {@link Ordered#LOWEST_PRECEDENCE} to allow other user-defined * {@link BeanInfoFactory} types to take precedence. * * @author Chris Beams * @since 3.2 * @see BeanInfoFactory * @see CachedIntrospectionResults */ public class ExtendedBeanInfoFactory implements BeanInfoFactory, Ordered { /** * Return an {@link ExtendedBeanInfo} for the given bean class, if applicable. */ @Override @Nullable public BeanInfo getBeanInfo(Class beanClass) throws IntrospectionException { return (supports(beanClass) ? new ExtendedBeanInfo(Introspector.getBeanInfo(beanClass)) : null); } /** * Return whether the given bean class declares or inherits any non-void * returning bean property or indexed property setter methods. */ private boolean supports(Class beanClass) { for (Method method : beanClass.getMethods()) { if (ExtendedBeanInfo.isCandidateWriteMethod(method)) { return true; } } return false; } @Override public int getOrder() { return Ordered.LOWEST_PRECEDENCE; } }





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