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Posted to commits@xerces.apache.org by ne...@apache.org on 2002/02/07 23:17:29 UTC
cvs commit: xml-xerces/java/src/org/apache/xerces/util SynchronizedSymbolTable.java
neilg 02/02/07 14:17:29
Added: java/src/org/apache/xerces/util SynchronizedSymbolTable.java
Log:
took this class out of CachingParserPool since XMLGrammarCachingConfiguration now also needs it. Also added a constructor to the SymbolTable class to allow its user to set the size--before hardcoded at 101. For Grammar caching it makes sense to have this size a good deal larger.
Revision Changes Path
1.1 xml-xerces/java/src/org/apache/xerces/util/SynchronizedSymbolTable.java
Index: SynchronizedSymbolTable.java
===================================================================
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2000-2002 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:
*
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*
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* distribution.
*
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* 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.
*
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* not be used to endorse or promote products derived from this
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* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* ====================================================================
*
* 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.apache.org. For more
* information on the Apache Software Foundation, please see
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*/
package org.apache.xerces.util;
/**
* Synchronized symbol table.
*
* This class moved into the util package since it's needed by multiple
* other classes (CachingParserPool, XMLGrammarCachingConfiguration).
*
* @author Andy Clark, IBM
*/
public final class SynchronizedSymbolTable
extends SymbolTable {
//
// Data
//
/** Main symbol table. */
protected SymbolTable fSymbolTable;
//
// Constructors
//
/** Constructs a synchronized symbol table. */
public SynchronizedSymbolTable(SymbolTable symbolTable) {
fSymbolTable = symbolTable;
} // <init>(SymbolTable)
// construct synchronized symbol table of default size
public SynchronizedSymbolTable() {
fSymbolTable = new SymbolTable();
} // init()
// construct synchronized symbol table of given size
public SynchronizedSymbolTable(int size) {
fSymbolTable = new SymbolTable(size);
} // init(int)
//
// SymbolTable methods
//
/**
* Adds the specified symbol to the symbol table and returns a
* reference to the unique symbol. If the symbol already exists,
* the previous symbol reference is returned instead, in order
* guarantee that symbol references remain unique.
*
* @param symbol The new symbol.
*/
public String addSymbol(String symbol) {
synchronized (fSymbolTable) {
return fSymbolTable.addSymbol(symbol);
}
} // addSymbol(String)
/**
* Adds the specified symbol to the symbol table and returns a
* reference to the unique symbol. If the symbol already exists,
* the previous symbol reference is returned instead, in order
* guarantee that symbol references remain unique.
*
* @param buffer The buffer containing the new symbol.
* @param offset The offset into the buffer of the new symbol.
* @param length The length of the new symbol in the buffer.
*/
public String addSymbol(char[] buffer, int offset, int length) {
synchronized (fSymbolTable) {
return fSymbolTable.addSymbol(buffer, offset, length);
}
} // addSymbol(char[],int,int):String
/**
* Returns true if the symbol table already contains the specified
* symbol.
*
* @param symbol The symbol to look for.
*/
public boolean containsSymbol(String symbol) {
synchronized (fSymbolTable) {
return fSymbolTable.containsSymbol(symbol);
}
} // containsSymbol(String):boolean
/**
* Returns true if the symbol table already contains the specified
* symbol.
*
* @param buffer The buffer containing the symbol to look for.
* @param offset The offset into the buffer.
* @param length The length of the symbol in the buffer.
*/
public boolean containsSymbol(char[] buffer, int offset, int length) {
synchronized (fSymbolTable) {
return fSymbolTable.containsSymbol(buffer, offset, length);
}
} // containsSymbol(char[],int,int):boolean
} // class SynchronizedSymbolTable
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