infra.beans.ExtendedBeanInfoFactory Maven / Gradle / Ivy
/*
* Copyright 2017 - 2024 the original author or authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see [https://www.gnu.org/licenses/]
*/
package infra.beans;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.lang.reflect.Method;
import infra.core.Ordered;
import infra.lang.Nullable;
/**
* {@link BeanInfoFactory} implementation that evaluates whether bean classes have
* "non-standard" JavaBeans setter methods and are thus candidates for introspection
* by Framework'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
* @author Harry Yang
* @see BeanInfoFactory
* @see CachedIntrospectionResults
* @since 4.0 2022/2/23 11:27
*/
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;
}
}