com.alibaba.fastjson.parser

Class SymbolTable

java.lang.Object

com.alibaba.fastjson.parser.SymbolTable

public class SymbolTable
extends Object

Author:

wenshao

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

Methods

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

hash

public static final int hash(String buffer,
       int offset,
       int len)