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http://issues.apache.org/bugzilla/show_bug.cgi?id=31298 setMinIdle feature implemented for GenericKeyedObjectPool Summary: setMinIdle feature implemented for GenericKeyedObjectPool Product: Commons Version: 1.2 Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: Other Component: Pool AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] Patch from Bowler Simon posted on commons-dev (17-19 aug 2004) --------------------------------------------------------------- The purpose of is to maintain a minimum number idle instances in a pool, but grow as required up to a maximum number of active instances. The reason for maintaining a minimum level of idle instances in a pool, is for efficiency. A call to borrowObject() when there are no pooled instances available, must create an instance of the object required. This causes delays when the object it is instanciating needs to reserve resources or connect to remote systems (for example, an SMTPConnection). The new class proposed, features the following: Same features as provided by GenericKeyedObjectPool (idle eviction, validation of pooled objects on borrow/on return/when idle). Maintain a minimum number of pooled objects (per key). This number is configurable. A seperate thread will be used to periodically create any required objects to maintain the minimum level. This time period is configurable. The pool must be aware of a key before it can start maintaining a minimum number of pooled objects for that key. This can be performed by performing a borrowObject(key). However, this results in a potential delay whilst the pooled object is being created. An extra method preparePool(key) is used to give the pool knowledge of the key, so that it can start maintaining a minimum number of pooled objects for that key. This should result in a much quicker call to borrowObject(key), as pooled instances will already be created and waiting in the pool. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
