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From ghow...@apache.org
Subject cvs commit: cocoon-2.1/src/scratchpad/src/org/apache/cocoon/caching/validity NameValueEvent.java Event.java EventValidity.java NamedEvent.java
Date Sat, 21 Jun 2003 03:36:15 GMT
ghoward     2003/06/20 20:36:15

  Added:       src/scratchpad/src/org/apache/cocoon/caching/validity
                        NameValueEvent.java Event.java EventValidity.java
                        NamedEvent.java
  Log:
  Experiment with external cache invalidation.  An EventAwareCacheImpl
  can't be committed yet because it relies on the latest sourceresolve 
  cvs.
  
  Revision  Changes    Path
  1.1                  cocoon-2.1/src/scratchpad/src/org/apache/cocoon/caching/validity/NameValueEvent.java
  
  Index: NameValueEvent.java
  ===================================================================
  /*
  
   ============================================================================
                     The Apache Software License, Version 1.1
   ============================================================================
  
   Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
  
   Redistribution and use in source and binary forms, with or without modifica-
   tion, 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 "Apache Cocoon" 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 (INCLU-
   DING, 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.
  
  */
  package org.apache.cocoon.caching.validity;
  
  /**
   * Very experimental start at external cache invalidation.
   * Warning - API very unstable.  Do not use!  In fact, if this 
   * becomes useful, it would probably move to Excalibur SourceResolve.
   * 
   * An external uncache event that consists of a name/value pair.  
   * An example might be "table_name", "primary_key"
   * 
   * @author Geoff Howard (ghoward@apache.org)
   * @version $CVS$
   */
  public class NameValueEvent extends Event {
  
      private String m_name;
      private String m_value;
      
  	public NameValueEvent(String name, String value) {
          m_name = name;
          m_value = value;
  	}
      
      private String getName() {
          return m_name;
      }
      
      private String getValue() {
          return m_value;
      }
      
  	public boolean equals(Event e) {
  		if (e instanceof NameValueEvent) {
              NameValueEvent nve = (NameValueEvent)e;
              return ( m_name.equals(nve.getName()) && 
                  m_value.equals(nve.getValue()) );
  		}
  		return false;
  	}
  
  }
  
  
  
  1.1                  cocoon-2.1/src/scratchpad/src/org/apache/cocoon/caching/validity/Event.java
  
  Index: Event.java
  ===================================================================
  /*
  
   ============================================================================
                     The Apache Software License, Version 1.1
   ============================================================================
  
   Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
  
   Redistribution and use in source and binary forms, with or without modifica-
   tion, 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 "Apache Cocoon" 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 (INCLU-
   DING, 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.
  
  */
  package org.apache.cocoon.caching.validity;
  
  /**
   * Very experimental start at external cache invalidation.
   * Warning - API very unstable.  Do not use!  In fact, if this 
   * becomes useful, it would probably move to Excalibur SourceResolve.
   * 
   * Base class encapsulating the information about an external 
   * uncache event.
   * 
   * @author Geoff Howard (ghoward@apache.org)
   * 
   * @version $CVS$
   */
  public abstract class Event {
      
      public abstract boolean equals(Event e);
      
      public boolean equals(Object o) {
          if (o instanceof Event) {
              return equals((Event)o);   
          }
          return false;
      }
      
  }
  
  
  
  1.1                  cocoon-2.1/src/scratchpad/src/org/apache/cocoon/caching/validity/EventValidity.java
  
  Index: EventValidity.java
  ===================================================================
  /*
  
   ============================================================================
                     The Apache Software License, Version 1.1
   ============================================================================
  
   Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
  
   Redistribution and use in source and binary forms, with or without modifica-
   tion, 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 "Apache Cocoon" 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 (INCLU-
   DING, 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.
  
  */
  package org.apache.cocoon.caching.validity;
  
  import org.apache.excalibur.source.SourceValidity;
  
  /**
   * Very experimental start at external cache invalidation.
   * Warning - API very unstable.  Do not use!  In fact, if this 
   * becomes useful, it would probably move to Excalibur SourceResolve.
   * 
   * The SourceValidity object for cache invalidation based on 
   * external events.
   * 
   * @author Geoff Howard(ghoward@apache.org)
   * @version $CVS$
   */
  public class EventValidity implements SourceValidity {
      
      private Event m_event;
      
      public EventValidity(Event ev) {
          m_event = ev;
      }
      
      public Event getEvent() {
          return m_event;
      }
  
  	/** Basic implementation is always valid until event signals 
       *  otherwise.  May never need other behavior.
  	 */
  	public int isValid() {
  		return VALID;
  	}
  
  	public int isValid(SourceValidity sv) {
  		if (sv instanceof EventValidity) {
              return VALID;
  		} 
          return INVALID;
  	}
  }
  
  
  
  1.1                  cocoon-2.1/src/scratchpad/src/org/apache/cocoon/caching/validity/NamedEvent.java
  
  Index: NamedEvent.java
  ===================================================================
  /*
  
   ============================================================================
                     The Apache Software License, Version 1.1
   ============================================================================
  
   Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
  
   Redistribution and use in source and binary forms, with or without modifica-
   tion, 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 "Apache Cocoon" 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 (INCLU-
   DING, 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.
  
  */
  package org.apache.cocoon.caching.validity;
  
  /**
   * Very experimental start at external cache invalidation.
   * Warning - API very unstable.  Do not use!  In fact, if this 
   * becomes useful, it would probably move to Excalibur SourceResolve.
   * 
   * An External cache event that consists of just a name.  Examples 
   * (not necessarily useful) could include "Easter" or "Shutdown"
   * 
   * @author Geoff Howard (ghoward@apache.org)
   * @version $CVS$
   */
  public class NamedEvent extends Event {
      
      private String m_name;
      
      public NamedEvent(String name) {
          m_name = name;
      }
      
      private String getName() {
          return m_name;
      }
  
  	public boolean equals(Event e) {
          if (e instanceof NamedEvent) {
              return m_name.equals(((NamedEvent)e).getName());
          }
  		return false;
  	}
      
      
  }
  
  
  

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