TokenFactory

java.lang.Object

provided.tokenFW.TokenFactory

All Implemented Interfaces:: ITokenFactory

public class TokenFactory extends Object implements ITokenFactory

Concrete factory to create tokens

Field Summary

Fields

Modifier and Type

Field

Description

static TokenFactory

Singleton

Singleton instance of this class
Constructor Summary

Constructors

Modifier

Constructor

Description

private

TokenFactory()

private constructor needed for singleton
Method Summary

Modifier and Type

Method

Description

Token

makeToken(String name, String lexeme)

Creates Tokens from the given name and lexeme.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- Singleton
  
  public static final TokenFactory Singleton
  
  Singleton instance of this class
Constructor Details
- TokenFactory
  
  private TokenFactory()
  
  private constructor needed for singleton
Method Details
- makeToken
  
  public Token makeToken(String name, String lexeme)
  
  Creates Tokens from the given name and lexeme. The returned tokens will call the case in their visitors corresponding to their *name*. For many tokens the name and lexeme are the same, but for some, it is not, e.g. an Quote token, where the name is "Quote", but the lexeme is the string value of the quoted text.
  
  Specified by:
  
  makeToken in interface ITokenFactory
  
  Parameters:
  
  name - The name of the token
  
  lexeme - The lexeme value for the token
  
  Returns:
  
  An Token instance with the given name and lexeme which calls the named case of its visitors.