Ehcache - How does ehcache get to know about the current memory size

Question

I donot see anywhere in Put function of Cache , that the sizeof Object or anything similar to it is being called . So how does ehCache comes to know the current memory filled. I know there are other function to get that , but they need to be called explicitly. I want to know at the runtime , how does it know the memoey filled.

Answer 1

首先，如果配置为这样，Ehcache将只对堆上的对象进行大小调整。如果是，则调整大小发生在堆内存储中，ARC相关代码不在Cache.put方法中。

因此，如果您想要追踪代码，请从net.sf.ehcache.store.MemoryStore#put开始，另请参阅net.sf.ehcache.pool.impl.AbstractPoolAccessor#add(java.lang.Object, java.lang.Object, java.lang.Object, boolean)。