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  /*
   *  Licensed to the Apache Software Foundation (ASF) under one or more
   *  contributor license agreements.  See the NOTICE file distributed with
   *  this work for additional information regarding copyright ownership.
   *  The ASF licenses this file to You under the Apache License, Version 2.0
   *  (the "License"); you may not use this file except in compliance with
   *  the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
  *
  *  Unless required by applicable law or agreed to in writing, software
  *  distributed under the License is distributed on an "AS IS" BASIS,
  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
 
 package org.apache.tomcat.util.buf;
 
 
 // XXX Shouldn't be here - has nothing to do with buffers.
 
Main tool for object expiry. Marks creation and access time of an "expirable" object, and extra properties like "id", "valid", etc. Used for objects that expire - originally Sessions, but also Contexts, Servlets, cache - or any other object that expires.

Author(s):
Costin Manolache
 
 public final class TimeStamp implements  Serializable {
     private long creationTime = 0L;
     private long lastAccessedTime = ;
     private long thisAccessedTime = ;
     private boolean isNew = true;
     private long maxInactiveInterval = -1;
     private boolean isValid = false;
     MessageBytes name;
     int id=-1;
     
     Object parent;
     
     public TimeStamp() {
     }
 
     // -------------------- Active methods --------------------
 
    
Access notification. This method takes a time parameter in order to allow callers to efficiently manage expensive calls to System.currentTimeMillis()
 
     public void touch(long time) {
 	this. = time;
 	this.=false;
     }
 
     // -------------------- Property access --------------------
 
    
Return the "name" of the timestamp. This can be used to associate unique identifier with each timestamped object. The name is a MessageBytes - i.e. a modifiable byte[] or char[].
 
     public MessageBytes getName() {
 	if==null ) =MessageBytes.newInstance();//lazy
 	return ;
     }

    
Each object can have an unique id, similar with name but providing faster access ( array vs. hashtable lookup )
 
     public int getId() {
 	return ;
     }
 
     public void setIdint id ) {
 	this.=id;
     }
    
    
Returns the owner of this stamp ( the object that is time-stamped ). For a
 
     public void setParentObject o ) {
 	=o;
     }
 
     public Object getParent() {
 	return ;
     }
 
     public void setCreationTime(long time) {
 	this. = time;
 	this. = time;
	this. = time;
    }
    public long getLastAccessedTime() {
    }
    public long getThisAccessedTime() {
        return ;
    }

    
Inactive interval in millis - the time is computed in millis, convert to secs in the upper layer
    public long getMaxInactiveInterval() {
    }
    public void setMaxInactiveInterval(long interval) {
	 = interval;
    }
    public boolean isValid() {
	return ;
    }
    public void setValid(boolean isValid) {
	this. = isValid;
    }
    public boolean isNew() {
	return ;
    }
    public void setNew(boolean isNew) {
	this. = isNew;
    }
    public long getCreationTime() {
	return ;
    }
    // -------------------- Maintainance --------------------
    public void recycle() {
	 = true;
	 = false;
	=-1;
	if!=null.recycle();
    }
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