cn.hutool.core.bean.BeanDescCache Maven / Gradle / Ivy
package cn.hutool.core.bean;
import cn.hutool.core.lang.func.Func0;
import cn.hutool.core.map.WeakConcurrentMap;
/**
* Bean属性缓存
* 缓存用于防止多次反射造成的性能问题
*
* @author Looly
*/
public enum BeanDescCache {
INSTANCE;
private final WeakConcurrentMap, BeanDesc> bdCache = new WeakConcurrentMap<>();
/**
* 获得属性名和{@link BeanDesc}Map映射
*
* @param beanClass Bean的类
* @param supplier 对象不存在时创建对象的函数
* @return 属性名和{@link BeanDesc}映射
* @since 5.4.2
*/
public BeanDesc getBeanDesc(Class beanClass, Func0 supplier) {
return bdCache.computeIfAbsent(beanClass, (key)->supplier.callWithRuntimeException());
}
/**
* 清空全局的Bean属性缓存
*
* @since 5.7.21
*/
public void clear() {
this.bdCache.clear();
}
}