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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.xerces.dom;


/** Internal class LCount is used to track the number of
    listeners registered for a given event name, as an entry
    in a global hashtable. This should allow us to avoid generating,
    or discard, events for which no listeners are registered. 
    
    ***** There should undoubtedly be methods here to manipulate
    this table. At the moment that code's residing in NodeImpl.
    Move it when we have a chance to do so. Sorry; we were
    rushed.
    
    ???? CONCERN: Hashtables are known to be "overserialized" in
    current versions of Java. That may impact performance.
    
    ???? CONCERN: The hashtable should probably be a per-document object.
    Finer granularity would be even better, but would cost more cycles to
    resolve and might not save enough event traffic to be worth the investment.
*/
/**
 * @xerces.internal
 * 
 * @version $Id: LCount.java 447266 2006-09-18 05:57:49Z mrglavas $
 */

class LCount 
{ 
    static java.util.Hashtable lCounts=new java.util.Hashtable();
    public int captures=0,bubbles=0,defaults, total=0;

    static LCount lookup(String evtName)
    {
        LCount lc=(LCount)lCounts.get(evtName);
        if(lc==null)
            lCounts.put(evtName,(lc=new LCount()));
        return lc;	        
    }
} // class LCount