List of expireCache() Examples

Examples of expireCache()

org.exolab.castor.jdo.CacheManager.expireCache()

Expires all objects from cache.

Objects expired from the cache will be read from persistent storage, as opposed to being read from the performance cache, during subsequent load/query operations.

When objects are expired from the cache individually, by identity, objects contained within a "master" object, for example objects maintained in a one-to-many relationship, will automatically be expired from the cache, without the need to explicitly identify them. This does not apply when expiring objects by type. Each type, both container and contained objects need to be specified.

org.exolab.castor.persist.LockEngine.expireCache()

Expire object from the cache. If the object to be expired is currently cached, then a write lock is first acquired for this object. In addition, a write lock is acquired on all objects related to, or contained within, this object. The version of the objects represented by their locks is then marked as "expired". Upon the release of each write lock (@see TransactionContext#expireCache), the cached version of the objects will not be placed back in the cache (@see TypeInfo#release). A subsequent read/query transaction will therefore load the values of the object from persistent storage. @param tx The transaction context @param oid The object OID @param timeout The max time to wait while acquiring a lock on theobject (specified in seconds) @return True if the object was expired successfully from the cache. @throws LockNotGrantedException Timeout or deadlock occured attempting to acquire lockon object @throws PersistenceException An error reported by the persistence engine @throws ClassNotPersistenceCapableException The class is not persistent capable @throws ObjectModifiedException Dirty checking mechanism may immediatelyreport that the object was modified in the database during the long transaction. @throws ObjectDeletedException Object has been deleted from the persistence store.

                // recursive call to this.expireCache, therefore,
                // an entry is added to the object list to prevent
                // infinite loops due to bi-directional references
                _tracker.trackObject(molder, oid, identity);


                if (engine.expireCache(this, oid, _lockTimeout)) {
                    engine.releaseLock(this, oid);
                }
            } catch (LockNotGrantedException except) {
                throw except;
            } finally {

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Examples of expireCache()

Examples of org.exolab.castor.persist.LockEngine.expireCache()