On 2/10/06, starki78 <[EMAIL PROTECTED]> wrote:
> Is there the possibility to use the pool
> with these two options:
>
> String key = POOL.putObject(Object o) {}
> POOL.putObject(Object o,String key) {}
>
> The crucial point is that a unique key is created internally and given back
> to the user.No. You need to come up with your own keys. An easy way is to simply create one with: Object key = new Object(); Though Object may not have the equals() and hashCode() behaviors you really want so many people use Strings. You're on your own when it comes to creating a unique String token. KeyedObjectPools usualy create objects on demand, you simply ask for an object with a key. eg: Object obj1 = pool.borrowObject(key); Object obj2 = pool.borrowObject(key); but don't forget to return a borrowed object with: pool.returnObject(key, obj1); pool.returnObject(key, obj2); > Another requirement is that the pool elements can be deleted after a timeout > (e.g. after one our) To expire stale objects you need to request that behavior when you create the KeyedObjectPool: KeyedPoolableObjectFactory kpof = new MyKeyedPoolableObjectFactory(); GenericKeyedObjectPool.Config config = new GenericKeyedObjectPool.Config(); config.timeBetweenEvictionRunsMillis = 10 * 60 * 1000; // check every 10 minutes config.minEvictableIdleTimeMillis = 60 * 60 * 1000; // evict objects idle for an hour KeyedObjectPool pool = GenericKeyedObjectPool(kpof, config); To use Commons Pool correctly you really need to make your own [Keyed]PoolableObjectFactory implementations. Some [Keyed]ObjectPool implementations may work without them but doing so basicly criples the effictiveness of the commons pool. See the examples at http://jakarta.apache.org/commons/pool/examples.html or read the JavaDocs: http://jakarta.apache.org/commons/pool/apidocs/ . -- Sandy McArthur "He who dares not offend cannot be honest." - Thomas Paine --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
