criteria.setCacheable(true);这个方法是干什么用的

criteria.setCacheable(true);

一下是Criteria的底层源代码

/**
* Enable caching of this query result, provided query caching is enabled
* for the underlying session factory.
*
* @param cacheable Should the result be considered cacheable; default is
* to not cache (false).
* @return this (for method chaining)
*/
public Criteria setCacheable(boolean cacheable);