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openjava.ptree
Class Literal  

java.lang.Object
  openjava.ptree.ParseTreeObject
      openjava.ptree.Leaf
          openjava.ptree.Literal

All Implemented Interfaces:

java.lang.Cloneable, Expression, ParseTree, VariableInitializer

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public class Literal

extends Leaf

implements Expression

The Literal class represents a literal.

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Field Summary
static int	BOOLEAN
static int	CHARACTER
private static Literal	constantEmptyString_
private static Literal	constantFalse_
private static Literal	constantNull_
private static Literal	constantOne_
private static Literal	constantTrue_
private static Literal	constantZero_
static int	DOUBLE
static int	FLOAT
protected  int	id
static int	INTEGER
static int	LONG
static int	NULL
static int	STRING

 

Fields inherited from class openjava.ptree.Leaf

charBegin, line

 

Fields inherited from class openjava.ptree.ParseTreeObject

LN

 

Constructor Summary

Literal(int id, java.lang.String str)           Allocates a new object.

 

Method Summary
void	accept(openjava.ptree.util.ParseTreeVisitor v)           Accepts a ParseTreeVisitor object as the role of a Visitor in the Visitor pattern, as the role of an Element in the Visitor pattern.
static Literal	constantEmptyString()
static Literal	constantFalse()
static Literal	constantNull()
static Literal	constantOne()
static Literal	constantTrue()
static Literal	constantZero()
int	getLiteralType()
openjava.mop.OJClass	getType(openjava.mop.Environment env)
static Literal	makeLiteral(boolean b)           Makes a new object of Literal class from the boolean.
static Literal	makeLiteral(java.lang.Boolean b)
static Literal	makeLiteral(char c)           Makes a new object of Literal class from the character.
static Literal	makeLiteral(java.lang.Character c)
static Literal	makeLiteral(double num)           Makes a new object of Literal class from the number.
static Literal	makeLiteral(java.lang.Double d)
static Literal	makeLiteral(float num)           Makes a new object of Literal class from the number.
static Literal	makeLiteral(java.lang.Float f)
static Literal	makeLiteral(int num)           Makes a new object of Literal class from the number.
static Literal	makeLiteral(java.lang.Integer n)
static Literal	makeLiteral(long num)           Makes a new object of Literal class from the number.
static Literal	makeLiteral(java.lang.Long n)
static Literal	makeLiteral(java.lang.String str)           Makes a new object of Literal class from the string.

 

Methods inherited from class openjava.ptree.Leaf

childrenAccept, equals, equals, getTokenID, makeCopy, makeRecursiveCopy, replaceChildWith, toString

 

Methods inherited from class openjava.ptree.ParseTreeObject

clone, equal, getObjectID, getParent, hashCode, lastObjectID, replace, setParent, toFlattenString

 

Methods inherited from class java.lang.Object

equals, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Methods inherited from interface openjava.ptree.ParseTree

childrenAccept, equals, getObjectID, makeCopy, makeRecursiveCopy, replace, toFlattenString, toString

 

Field Detail

BOOLEAN

public static final int BOOLEAN

See Also:

getLiteralType() 55 , Constant Field Values

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INTEGER

public static final int INTEGER

See Also:

Constant Field Values

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LONG

public static final int LONG

See Also:

Constant Field Values

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FLOAT

public static final int FLOAT

See Also:

Constant Field Values

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DOUBLE

public static final int DOUBLE

See Also:

Constant Field Values

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CHARACTER

public static final int CHARACTER

See Also:

Constant Field Values

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STRING

public static final int STRING

See Also:

Constant Field Values

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NULL

public static final int NULL

See Also:

Constant Field Values

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id

protected int id

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constantTrue_

private static Literal constantTrue_

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constantFalse_

private static Literal constantFalse_

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constantNull_

private static Literal constantNull_

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constantEmptyString_

private static Literal constantEmptyString_

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constantZero_

private static Literal constantZero_

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constantOne_

private static Literal constantOne_

Constructor Detail

Literal

public Literal(int id,
               java.lang.String str)

Allocates a new object. If you want to make String literal like "test", call this constructor in the form :

     new Literal( Literal.STRING, "\"test\"" )
 

or use makeLiteral() static method.

Method Detail

makeLiteral

public static Literal makeLiteral(java.lang.String str)

Makes a new object of Literal class from the string.

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makeLiteral

public static Literal makeLiteral(boolean b)

Makes a new object of Literal class from the boolean.

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makeLiteral

public static Literal makeLiteral(java.lang.Boolean b)

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makeLiteral

public static Literal makeLiteral(char c)

Makes a new object of Literal class from the character.

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makeLiteral

public static Literal makeLiteral(java.lang.Character c)

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makeLiteral

public static Literal makeLiteral(int num)

Makes a new object of Literal class from the number.

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makeLiteral

public static Literal makeLiteral(java.lang.Integer n)

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makeLiteral

public static Literal makeLiteral(long num)

Makes a new object of Literal class from the number.

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makeLiteral

public static Literal makeLiteral(java.lang.Long n)

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makeLiteral

public static Literal makeLiteral(float num)

Makes a new object of Literal class from the number.

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makeLiteral

public static Literal makeLiteral(java.lang.Float f)

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makeLiteral

public static Literal makeLiteral(double num)

Makes a new object of Literal class from the number.

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makeLiteral

public static Literal makeLiteral(java.lang.Double d)

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getLiteralType

public int getLiteralType()

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constantTrue

public static Literal constantTrue()

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constantFalse

public static Literal constantFalse()

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constantNull

public static Literal constantNull()

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constantEmptyString

public static Literal constantEmptyString()

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constantZero

public static Literal constantZero()

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constantOne

public static Literal constantOne()

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getType

public openjava.mop.OJClass getType(openjava.mop.Environment env)
                             throws java.lang.Exception

Specified by:

getType in interface Expression

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accept

public void accept(openjava.ptree.util.ParseTreeVisitor v)
            throws ParseTreeException

Description copied from interface: ParseTree

Accepts a ParseTreeVisitor object as the role of a Visitor in the Visitor pattern, as the role of an Element in the Visitor pattern.

This invoke an appropriate visit() method on the accepted visitor.

Specified by:

accept in interface ParseTree

Overrides:

accept in class Leaf

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Home >> All >> openjava >> [ ptree overview ]	PREV CLASS  NEXT CLASS
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