net.sf.eBus.text

Class Token

java.lang.Object

net.sf.eBus.text.Token

public final class Token
extends Object

Contains the token's type, corresponding Java object, raw text and the input line number where the token was found. This class is immutable.

Author:

Charles Rapp

Constructor Summary

Constructors

Constructor and Description
Token(int type, Object value, String token, int line) Creates a token with the given attributes.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o) Returns true if o is a non-null Token instance of the same type and raw token text; false otherwise.
int	hashCode() Returns the token hashcode based on the raw token string.
boolean	isValue(Object value) Returns true if value equals the token value and false otherwise.
int	lineNumber() Returns the input line number where the token was found.
String	token() Returns the raw token string.
String	toString() Returns this token's textual representation.
int	type() Returns the token type.
Object	value() Returns the token value.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Token

public Token(int type,
             Object value,
             String token,
             int line)

Creates a token with the given attributes.

Parameters:

type - The token type. See TokenLexer for the token type list.

value - The token value created from raw token string.

token - The raw token string.

line - The input line where the token was found.

Method Detail

type

public int type()

Returns the token type.

Returns:

the token type.

value

public Object value()

Returns the token value.

Returns:

the token value.

token

public String token()

Returns the raw token string.

Returns:

the raw token string.

lineNumber

public int lineNumber()

Returns the input line number where the token was found.

Returns:

the input line number where the token was found.

isValue

public boolean isValue(Object value)

Returns true if value equals the token value and false otherwise.

Parameters:

value - Test equality between this object and the token value.

Returns:

true if value equals the token value and false otherwise.

equals

public boolean equals(Object o)

Returns true if o is a non-null Token instance of the same type and raw token text; false otherwise.

Overrides:

equals in class Object

Parameters:

o - Test equality with this object.

Returns:

true if o is a non-null Token instance of the same type and raw token text; false otherwise.

hashCode

public int hashCode()

Returns the token hashcode based on the raw token string.

Overrides:

hashCode in class Object

Returns:

the token hashcode based on the raw token string.

toString

public String toString()

Returns this token's textual representation.

Overrides:

toString in class Object

Returns:

this token's textual representation.