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 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 * Copyright (c) 2006 - 2009 Pentaho Corporation and Contributors.  All rights reserved.

package org.pentaho.reporting.libraries.resourceloader;

import java.io.Serializable;

 * A resource is a wrapper around the final product. It shall not hold any
 * references to the ResourceData object used to create the resource (to allow
 * efficient 2-stage caching).
 * Although this interfaces declares to be serializable, this might not be the
 * case for some of the content contained in the resource object. Cache
 * implementors should be aware of that issue and should act accordingly
 * (for instance by not caching that object).
 * @author Thomas Morgner
00034 public interface Resource extends Serializable
  public Object getResource () throws ResourceException;

  public Class getTargetType();

  public boolean isTemporaryResult();
  public long getVersion(ResourceKey key);

   * The primary source is also included in this set. The dependencies are
   * given as ResourceKey objects. The keys itself do not hold any state
   * information.
   * The dependencies do not track deep dependencies. So if Resource A depends
   * on Resource B which depends on Resource C, then A only knows about B, not
   * C.
   * @return
  public ResourceKey[] getDependencies();
  public ResourceKey getSource();

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