com.xiaoleilu.hutool.bean.BeanInfoCache Maven / Gradle / Ivy
package com.xiaoleilu.hutool.bean;
import java.beans.PropertyDescriptor;
import java.util.Collections;
import java.util.Map;
import java.util.WeakHashMap;
/**
* 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 class BeanInfoCache {
private Map, Map> pdCache = Collections.synchronizedMap(new WeakHashMap, Map>());
private Map, Map> ignoreCasePdCache = Collections.synchronizedMap(new WeakHashMap, Map>());
/** 单例 */
public static BeanInfoCache INSTANCE = new BeanInfoCache();
/**
* 获得属性名和{@link PropertyDescriptor}Map映射
* @param beanClass Bean的类
* @param ignoreCase 是否忽略大小写
* @return 属性名和{@link PropertyDescriptor}Map映射
*/
public Map getPropertyDescriptorMap(Class beanClass, boolean ignoreCase){
return (ignoreCase ? ignoreCasePdCache : pdCache).get(beanClass);
}
/**
* 加入缓存
* @param beanClass Bean的类
* @param fieldNamePropertyDescriptorMap 属性名和{@link PropertyDescriptor}Map映射
* @param ignoreCase 是否忽略大小写
*/
public void putPropertyDescriptorMap(Class beanClass, Map fieldNamePropertyDescriptorMap, boolean ignoreCase){
(ignoreCase ? ignoreCasePdCache : pdCache).put(beanClass, fieldNamePropertyDescriptorMap);
}
}