com.alibaba.fastjson.parser

Class SymbolTable

java.lang.Object

com.alibaba.fastjson.parser.SymbolTable

public class SymbolTable
extends Object

Author:

wenshao[szujobs@hotmail.com]

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_TABLE_SIZE
static int	MAX_BUCKET_LENTH
static int	MAX_SIZE

Constructor Summary

Constructors

Constructor and Description
SymbolTable()
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)
static int	hash(char[] buffer, int offset, int len)
int	size()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_TABLE_SIZE

public static final int DEFAULT_TABLE_SIZE

See Also:

Constant Field Values

MAX_BUCKET_LENTH

public static final int MAX_BUCKET_LENTH

See Also:

Constant Field Values

MAX_SIZE

public static final int MAX_SIZE

See Also:

Constant Field Values

Constructor Detail

SymbolTable

public SymbolTable()

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)

size

public int size()

hash

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