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openjava.ptree
Class ConditionalExpression  

java.lang.Object
  openjava.ptree.ParseTreeObject
      openjava.ptree.NonLeaf
          openjava.ptree.ConditionalExpression

All Implemented Interfaces:

java.lang.Cloneable, Expression, ParseTree, VariableInitializer

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public class ConditionalExpression

extends NonLeaf

implements Expression

The ConditionalExpression class represents a conditional expression like:

     (i == 1) ? 3 : 4
 

This consists of a conditional part, true case part, and false case part. Each part of them is an expression.
If the operator in the expression of the operands has week unity, this automatically produces the code in which the operands are enclosed by parenthesises.
In the case the conditional part is f = f(), the true case part is "red" and the false case part is str = "blue" this produces the code :

     (f = f()) ? "red" : (str = "blue")
 

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Field Summary

 

Fields inherited from class openjava.ptree.NonLeaf

 

Fields inherited from class openjava.ptree.ParseTreeObject

LN

 

Constructor Summary
(package private)	ConditionalExpression()
	ConditionalExpression(Expression condition, Expression truecase, Expression falsecase)           Allocates a new conditional expression 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.
Expression	getCondition()           Gets the conditional part of this conditional expression.
Expression	getFalseCase()           Gets the false case part of this.
Expression	getTrueCase()           Gets the true case part of this conditional expression.
openjava.mop.OJClass	getType(openjava.mop.Environment env)
void	setCondition(Expression expr)           Sets the conditional part of this conditional expression.
void	setFalseCase(Expression expr)           Sets the false case part of this.
void	setTrueCase(Expression expr)           Sets the true case part of this conditional expression.

 

Methods inherited from class openjava.ptree.NonLeaf

childrenAccept, elementAt, equals, getComment, getContents, getLength, makeRecursiveCopy, replaceChildWith, set, set, set, set, set, set, set, set, set, setComment, setElementAt

 

Methods inherited from class openjava.ptree.ParseTreeObject

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

 

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

 

Constructor Detail

ConditionalExpression

public ConditionalExpression(Expression condition,
                             Expression truecase,
                             Expression falsecase)

Allocates a new conditional expression object.

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ConditionalExpression

ConditionalExpression()

Method Detail

getCondition

public Expression getCondition()

Gets the conditional part of this conditional expression.

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setCondition

public void setCondition(Expression expr)

Sets the conditional part of this conditional expression.

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getTrueCase

public Expression getTrueCase()

Gets the true case part of this conditional expression.

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setTrueCase

public void setTrueCase(Expression expr)

Sets the true case part of this conditional expression.

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getFalseCase

public Expression getFalseCase()

Gets the false case part of this.

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setFalseCase

public void setFalseCase(Expression expr)

Sets the false case part of this.

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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

Specified by:

accept in class ParseTreeObject

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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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