#ifndef __GEMFIRE_ATTRIBUTESMUTATOR_H__
#define __GEMFIRE_ATTRIBUTESMUTATOR_H__
/*=========================================================================
 * Copyright (c) 2002-2014 Pivotal Software, Inc. All Rights Reserved.
 * This product is protected by U.S. and international copyright
 * and intellectual property laws. Pivotal products are covered by
 * more patents listed at http://www.pivotal.io/patents.
 *========================================================================
 */

#include "gfcpp_globals.hpp"
#include "gf_types.hpp"
#include "ExpirationAction.hpp"
/**
 * @file
 */

namespace gemfire {

class CacheListener;
class CacheLoader;
class CacheWriter;

/**
 * @class AttributesMutator AttributesMutator.hpp
 *
 * Supports modification of certain region attributes after the region has been
 * created. It is required that the attributes be completely initialized
 * using an {@link AttributesFactory} before creating the region. AttributesMutator 
 * can be applied to adjusting and tuning a subset of attributes that are modifiable
 * at runtime.
 *<p>
 * The setter methods all return the previous value of the attribute.
 *
 * @see Region::getAttributesMutator
 * @see RegionAttributes
 * @see AttributesFactory
 */
class CPPCACHE_EXPORT AttributesMutator : public SharedBase {

private:
  
  RegionPtr m_region;
  
public:

  /** Internal constructor. Use Region::getAttributesMutator() to acquire the
   * mutator for a region. */
  AttributesMutator( const RegionPtr& region );

  virtual ~AttributesMutator();

  /** Sets the idleTimeout duration for region entries.
   * @param idleTimeout the idleTimeout in seconds for entries in this region.
   * @return the previous value.
   * @throw IllegalStateException if the new idleTimeout changes entry expiration from
   *   disabled to enabled or enabled to disabled.
   */
  int32_t setEntryIdleTimeout(int32_t idleTimeout);

  /** Set the idleTimeout Action for region entries.
   * @param action the idleTimeout ExpirationAction::Action for entries in this region.
   * @return the previous value.
   */
  ExpirationAction::Action setEntryIdleTimeoutAction( ExpirationAction::Action action );

  /** Sets the timeToLive duration for region entries.
   * @param timeToLive the timeToLive in seconds for entries in this region.
   * @return the previous value.
   * @throw IllegalStateException if the new timeToLive changes entry expiration from
   *   disabled to enabled or enabled to disabled.
   */
  int32_t setEntryTimeToLive(int32_t timeToLive);
  
  /** Set the timeToLive Action for region entries.
   * @param action the timeToLive ExpirationAction::Action for entries in this region.
   * @return the previous value.
   */
  ExpirationAction::Action setEntryTimeToLiveAction(ExpirationAction::Action action);

  /** Sets the idleTimeout duration for the region itself.
   * @param idleTimeout the ExpirationAttributes for this region idleTimeout
   * @return the previous value.
   * @throw IllegalStateException if the new idleTimeout changes region expiration from
   *   disabled to enabled or enabled to disabled.
   */
  int32_t setRegionIdleTimeout(int32_t idleTimeout);
  
  /** Set the idleTimeout Action for the region itself.
   * @param action the idleTimeout ExpirationAction::Action for this region.
   * @return the previous value.
   */
  ExpirationAction::Action setRegionIdleTimeoutAction(ExpirationAction::Action action);

  /** Sets the timeToLive duration for the region itself.
   * @param timeToLive the ExpirationAttributes for this region timeToLive
   * @return the previous value.
   * @throw IllegalStateException if the new timeToLive changes region expiration from
   *   disabled to enabled or enabled to disabled.
   */
  int32_t setRegionTimeToLive(int32_t timeToLive);
  
  /** Set the timeToLive Action for the region itself.
   * @param action the timeToLive ExpirationAction::Action for this region.
   * @return the previous value.
   */
  ExpirationAction::Action setRegionTimeToLiveAction(ExpirationAction::Action action);

  /** Sets the Maximum entry count in the region before LRU eviction.
   * @param entriesLimit the number of entries to allow.
   * @return the previous value.
   * @throw IllegalStateException if the new entriesLimit changes LRU from
   *   disabled to enabled or enabled to disabled.
   */
  uint32_t setLruEntriesLimit( uint32_t entriesLimit );
 
  /** Sets cache listener for region. The previous cache listener will be replaced with 
   * <code>aListener</code>.
   * @param aListener cache listener
   */
  void setCacheListener(const CacheListenerPtr& aListener);

  /** Sets cache listener for region. The previous cache listener will be replaced with 
   * a listener created using the factory function provided in the given library.
   * @param libpath path of the library containing cache listener factory function. 
   * @param factoryFuncName factory function for creating cache listener.
   */
  void setCacheListener(const char* libpath, const char* factoryFuncName);

  /** Sets cache loader for region. The previous cache loader will be replaced with 
   * <code>aLoader</code>.
   * @param aLoader cache loader
   */
  void setCacheLoader(const CacheLoaderPtr& aLoader);

  /** Sets cache loader for region. The previous cache loader will be replaced with 
   * a loader created using the factory function provided in the given library.
   * @param libpath path of the library containing cache loader factory function. 
   * @param factoryFuncName factory function for creating cache loader.
   */
  void setCacheLoader(const char* libpath, const char* factoryFuncName);

  /** Sets cache writer for region. The previous cache writer will be replaced with 
   * <code>aWriter</code>.
   * @param aWriter cache writer
   */
  void setCacheWriter(const CacheWriterPtr& aWriter);

  /** Sets cache writer for region. The previous cache writer will be replaced with 
   * a writer created using the factory function provided in the given library.
   * @param libpath path of the library containing cache writer factory function. 
   * @param factoryFuncName factory function for creating cache writer.
   */
  void setCacheWriter(const char* libpath, const char* factoryFuncName);

};

}; //namespace gemfire
#endif //ifndef __GEMFIRE_ATTRIBUTESMUTATOR_H__