com.alibaba.fastjson.parser

Class SymbolTable

java.lang.Object

com.alibaba.fastjson.parser.SymbolTable

public class SymbolTable
extends Object

Author:

wenshao[szujobs@hotmail.com]

Constructor Summary

Constructors

Constructor and Description
SymbolTable(int tableSize)

Method Summary

Modifier and Type	Method and Description
String	addSymbol(char[] buffer, int offset, int len)
String	addSymbol(char[] buffer, int offset, int len, int hash) Adds the specified symbol to the symbol table and returns a reference to the unique symbol.
String	addSymbol(String buffer, int offset, int len, int hash)
String	addSymbol(String buffer, int offset, int len, int hash, boolean replace)
static int	hash(char[] buffer, int offset, int len)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SymbolTable

public SymbolTable(int tableSize)

Method Detail

addSymbol

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

addSymbol

public String addSymbol(char[] buffer,
                        int offset,
                        int len,
                        int hash)

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.

len - The length of the new symbol in the buffer.

addSymbol

public String addSymbol(String buffer,
                        int offset,
                        int len,
                        int hash)

addSymbol

public String addSymbol(String buffer,
                        int offset,
                        int len,
                        int hash,
                        boolean replace)

hash

public static int hash(char[] buffer,
                       int offset,
                       int len)