com.github.freegeese.easymybatis.meta.MetaCache Maven / Gradle / Ivy
package com.github.freegeese.easymybatis.meta;
import org.apache.ibatis.mapping.MappedStatement;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* 元数据缓存
*
* 通过此类获取元数据，将会被缓存，下次获取将会从缓存中获取
*
* @author zhangguangyong
* @since 1.0
*/
public class MetaCache {
private static Map, MetaEntityClass> metaEntityClassCache = new ConcurrentHashMap<>();
private static Map metaMapperClassCache = new ConcurrentHashMap<>();
public static MetaEntityClass getMetaEntityClass(Class entityClass) {
if (metaEntityClassCache.containsKey(entityClass)) {
return metaEntityClassCache.get(entityClass);
}
MetaEntityClass metaEntityClass = MetaEntityClass.forClass(entityClass);
metaEntityClassCache.put(entityClass, metaEntityClass);
return metaEntityClass;
}
public static MetaMapperClass getMetaMapperClass(MappedStatement mappedStatement) {
String id = mappedStatement.getId();
if (metaMapperClassCache.containsKey(id)) {
return metaMapperClassCache.get(id);
}
MetaMapperClass metaMapperClass = MetaMapperClass.forMappedStatement(mappedStatement);
metaMapperClassCache.put(id, metaMapperClass);
return metaMapperClass;
}
}