org.apache.xerces.util

Class ShadowedSymbolTable

public final class ShadowedSymbolTable extends SymbolTable

Shadowed symbol table. The table has a reference to the main symbol table and is not allowed to add new symbols to the main symbol table. New symbols are added to the shadow symbol table and are local to the component using this table.

Version: $Id: ShadowedSymbolTable.java,v 1.3 2004/02/24 23:15:53 mrglavas Exp $

Author: Andy Clark IBM

Field Summary
protected SymbolTablefSymbolTable
Main symbol table.
Constructor Summary
ShadowedSymbolTable(SymbolTable symbolTable)
Constructs a shadow of the specified symbol table.
Method Summary
StringaddSymbol(String symbol)
Adds the specified symbol to the symbol table and returns a reference to the unique symbol.
StringaddSymbol(char[] buffer, int offset, int length)
Adds the specified symbol to the symbol table and returns a reference to the unique symbol.
inthash(String symbol)
Returns a hashcode value for the specified symbol.
inthash(char[] buffer, int offset, int length)
Returns a hashcode value for the specified symbol information.

Field Detail

fSymbolTable

protected SymbolTable fSymbolTable
Main symbol table.

Constructor Detail

ShadowedSymbolTable

public ShadowedSymbolTable(SymbolTable symbolTable)
Constructs a shadow of the specified symbol table.

Method Detail

addSymbol

public String addSymbol(String symbol)
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.

Parameters: symbol The new symbol.

addSymbol

public String addSymbol(char[] buffer, int offset, int length)
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.

Parameters: buffer The buffer containing the new symbol. offset The offset into the buffer of the new symbol. length The length of the new symbol in the buffer.

hash

public int hash(String symbol)
Returns a hashcode value for the specified symbol. The value returned by this method must be identical to the value returned by the hash(char[],int,int) method when called with the character array that comprises the symbol string.

Parameters: symbol The symbol to hash.

hash

public int hash(char[] buffer, int offset, int length)
Returns a hashcode value for the specified symbol information. The value returned by this method must be identical to the value returned by the hash(String) method when called with the string object created from the symbol information.

Parameters: buffer The character buffer containing the symbol. offset The offset into the character buffer of the start of the symbol. length The length of the symbol.

Copyright © 1999-2005 Apache XML Project. All Rights Reserved.