1.2.3. Per-Invocation Flags Example

In a use case for Red Hat JBoss Data Grid, where a write operation, such as put(), must not return the previous value, the IGNORE_RETURN_VALUES flag is used. This flag prevents a remote lookup (to get the previous value) in a distributed environment, which in turn prevents the retrieval of the undesired, potential, previous value. Additionally, if the cache is configured with a cache loader, this flag prevents the previous value from being loaded from its cache store.

An example of using the IGNORE_RETURN_VALUES flag is:

Cache cache = ...
	cache.getAdvancedCache()
	   .withFlags(Flag.IGNORE_RETURN_VALUES)
	   .put("local", "only")

Cache cache = ...
	cache.getAdvancedCache()
	   .withFlags(Flag.IGNORE_RETURN_VALUES)
	   .put("local", "only")