cvs commit: xml-xalan/c/src/Include XalanObjectCache.hpp

[db...@apache.org]

dbertoni    01/04/20 15:51:59

  Added:       c/src/Include XalanObjectCache.hpp
  Log:
  Initial revision.
  
  Revision  Changes    Path
  1.1                  xml-xalan/c/src/Include/XalanObjectCache.hpp
  
  Index: XalanObjectCache.hpp
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   *
   * Copyright (c) 1999-2001 The Apache Software Foundation.  All rights 
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *	  notice, this list of conditions and the following disclaimer. 
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *	  notice, this list of conditions and the following disclaimer in
   *	  the documentation and/or other materials provided with the
   *	  distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *	  if any, must include the following acknowledgment:  
   *		 "This product includes software developed by the
   *		  Apache Software Foundation (http://www.apache.org/)."
   *	  Alternately, this acknowledgment may appear in the software itself,
   *	  if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Xalan" and "Apache Software Foundation" must
   *	  not be used to endorse or promote products derived from this
   *	  software without prior written permission. For written 
   *	  permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *	  nor may "Apache" appear in their name, without prior written
   *	  permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.	IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation and was
   * originally based on software copyright (c) 1999, International
   * Business Machines, Inc., http://www.ibm.com.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  #if !defined(XALAN_OBJECTCACHE_HEADER_GUARD)
  #define XALAN_OBJECTCACHE_HEADER_GUARD
  
  
  
  #include <algorithm>
  #include <vector>
  
  
  
  template<class ObjectType>
  class XalanObjectCache
  {
  public:
  
  #if defined(XALAN_NO_NAMESPACES)
  	typedef vector<ObjectType*>		VectorType;
  #else
  	typedef std::vector<KeyType>	VectorType;
  #endif
  
  	explicit
  	XalanObjectCache() :
  		m_availableList(),
  		m_busyList()
  	{
  	}
  
  	virtual
  	~XalanObjectCache()
  	{
  		reset();
  
  #if !defined(XALAN_NO_NAMESPACES)
  		using std::for_each;
  #endif
  
  		for_each(
  			m_availableList.begin(),
  			m_availableList.end(),
  			DeleteFunctor<ObjectType>());
  	}
  
  	virtual void
  	reset()
  	{
  		while (m_busyList.size() != 0)
  		{
  			ObjectType* const	theInstance = m_busyList.back();
  
  			resetInstance(theInstance);
  
  			m_availableList.push_back(theInstance);
  
  			m_busyList.pop_back();
  		}
  	}
  
  protected:
  
  	virtual ObjectType*
  	create() = 0;
  
  	virtual void
  	resetInstance(ObjectType*	/* theInstance */)
  	{
  	}
  
  private:
  
  	// There are not defined...
  	XalanObjectCache(const XalanObjectCache<ObjectType>&	theRHS);
  
  	XalanObjectCache<ObjectType>&
  	operator=(const XalanObjectCache<ObjectType>&	theRHS);
  
  	bool
  	operator==(const XalanObjectCache<ObjectType>&	theRHS) const;
  
  
  	// Data members
  	VectorType	m_availableVector;
  
  	VectorType	m_busyVector;
  };
  
  
  
  template<class ObjectType>
  class XalanObjectCacheDefault : public XalanObjectCache<ObjectType>
  {
  public:
  
  	explicit
  	XalanObjectCacheDefault() :
  		XalanObjectCache()
  	{
  	}
  
  protected:
  
  	virtual ObjectType*
  	create()
  	{
  		return new ObjectType;
  	}
  
  private:
  
  	// There are not defined...
  	XalanObjectCacheDefault(const XalanObjectCacheDefault<ObjectType>&	theRHS);
  
  	XalanObjectCacheDefault<ObjectType>&
  	operator=(const XalanObjectCacheDefault<ObjectType>&	theRHS);
  
  	bool
  	operator==(const XalanObjectCacheDefault<ObjectType>&	theRHS) const;
  
  };
  
  
  
  #endif
  
  
  

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