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What is a CacheLoader?

April 26, 2017cacheloader

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What is a CacheLoader?

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A CacheLoader is the connection of JBossCache to a (persistent) data store. The CacheLoader is called by JBossCache to fetch data from a store when that data is not in the cache, and when modifications are made to data in the cache the CacheLoader is called to store those modifications back to the store. In conjunction with eviction policies, JBossCache with a CacheLoader allows a user to maintain a bounded cache for a large backend datastore. Frequently used data is fetched from the datastore into the cache, and the least used data is evicted, in order to provide fast access to frequently accessed data. This is all configured through XML, and the programmer doesn’t have to take care of loading and eviction. JBossCache currently ships with several CacheLoader implementations, including: • FileCacheLoader: this implementation uses the file system to store and retrieve data. JBossCache nodes are mapped to directories, subnodes to subdirectories etc. Attributes of a node are mapped to a f