[CONF] Apache Cayenne Documentation > Caching Query Results

[confluence]

Caching Query Results Page comment added by Christian Grobmeier Starting from: List objects1 = context.performQuery("MyQuery", false); ... it should be: NamedQuery query = new NamedQuery("MyQuery"); List objects = context.performQuery(query, false); By default cached results are used. Now if we want to force refresh, we need to use add the following (for just this invocation - this does not affect the underlying saved query) NamedQuery query = new NamedQuery("MyQuery"); query.setForceNoCache(true); List objects = context.performQuery(query, false); Note that parameterized named queries will still work correctly with the cache. We've already mentioned that the users must ensure that two queries must have different names if they fetch logically different data. This is NOT the case with queries stored in the DataMap. If you run the same named query with different sets of parameters, Cayenne will internally generate unique cache keys for each distinct parameter set. Map<String,?> parameters = Collections.singletonMap("key", "value1"); NamedQuery query = new NamedQuery("MyQuery", parameters); List objects = context.performQuery(query); Now if we run the same query with a different set of parameters, Cayenne will do the right thing and create a separate entry in the cache: Map<String,?> parameters = Collections.singletonMap("key", "value2"); NamedQuery query = new NamedQuery("MyQuery", parameters); List objects = context.performQuery(query); Change Notification Preferences View Online | Reply To This