| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 1999-2002,2004 The Apache Software Foundation. |
| * |
| * Licensed 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 com.sun.org.apache.xerces.internal.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 |
| * |
| */ |
| |
| 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 |