Ejemplo n.º 1
0
 /**
  * Expires a type with specific identities from cache.
  *
  * <p>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.
  *
  * <p>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.
  *
  * <p>
  *
  * @param type The type to expire.
  * @param identity An array of object identifiers to expire.
  */
 public void expireCache(final Class type, final Object[] identity) throws PersistenceException {
   testForOpenDatabase();
   ClassMolder molder = _lockEngine.getClassMolder(type);
   for (int i = 0; i < identity.length; i++) {
     _transactionContext.expireCache(molder, new Identity(identity[i]));
   }
 }
Ejemplo n.º 2
0
  /**
   * Indicates whether am instance of cls is currently cached.
   *
   * @param cls The class type.
   * @param identity The object identity.
   * @return True if the object is cached.
   * @throws PersistenceException If a problem occured resolving the object's cache membership.
   */
  public boolean isCached(final Class cls, final Object identity) throws PersistenceException {
    if (_transactionContext != null && _transactionContext.isOpen()) {
      return _transactionContext.isCached(
          _lockEngine.getClassMolder(cls), cls, new Identity(identity));
    }

    throw new PersistenceException("isCached() has to be called within an active transaction.");
  }
Ejemplo n.º 3
0
 /**
  * {@inheritDoc}
  *
  * @see org.castor.persist.AbstractTransactionContext
  *     #createConnection(org.exolab.castor.persist.LockEngine)
  */
 protected Connection createConnection(final LockEngine engine) throws ConnectionFailedException {
   // Get a new connection from the engine. Since the engine has no
   // transaction association, we must do this sort of round trip. An attempt
   // to have the transaction association in the engine inflates the code size
   // in other places.
   try {
     return engine.getDatabaseContext().getConnectionFactory().createConnection();
   } catch (SQLException ex) {
     throw new ConnectionFailedException(Messages.format("persist.nested", ex), ex);
   }
 }
Ejemplo n.º 4
0
 /**
  * Expires all instances of specified types from cache.
  *
  * <p>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.
  *
  * <p>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.
  *
  * <p>
  *
  * @param type An array of types to expire.
  */
 public void expireCache(final Class[] type) {
   for (int i = 0; i < type.length; i++) {
     _lockEngine.expireCache(type[i]);
   }
 }
Ejemplo n.º 5
0
 /**
  * Expires all objects from cache.
  *
  * <p>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.
  *
  * <p>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.
  */
 public void expireCache() {
   _lockEngine.expireCache();
 }
Ejemplo n.º 6
0
 /** Dump cached objects of specific type to log. */
 public void dumpCache(final Class cls) {
   _lockEngine.dumpCache(cls);
 }
Ejemplo n.º 7
0
 /** Dump all cached objects to log. */
 public void dumpCache() {
   _lockEngine.dumpCache();
 }