org.jbpm.jpdl.el.impl
Class ConditionalExpression

java.lang.Object
  org.jbpm.jpdl.el.impl.Expression
      org.jbpm.jpdl.el.impl.ConditionalExpression

public class ConditionalExpression
extends Expression

Represents a conditional expression. I've decided not to produce an abstract base "TernaryOperatorExpression" class since (a) future ternary operators are unlikely and (b) it's not clear that there would be a meaningful way to abstract them. (For instance, would they all be right- associative? Would they all have two fixed operator symbols?)

Author:

Shawn Bayern

Constructor Summary

ConditionalExpression(Expression pCondition, Expression pTrueBranch, Expression pFalseBranch)
Constructor

Method Summary

java.lang.Object	evaluate(VariableResolver vr, FunctionMapper f, Logger l) Evaluates the conditional expression and returns the literal result
Expression	getCondition()
java.lang.String	getExpressionString() Returns the expression in the expression language syntax
Expression	getFalseBranch()
Expression	getTrueBranch()
void	setCondition(Expression pCondition)
void	setFalseBranch(Expression pFalseBranch)
void	setTrueBranch(Expression pTrueBranch)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConditionalExpression

public ConditionalExpression(Expression pCondition,
                             Expression pTrueBranch,
                             Expression pFalseBranch)

Constructor

Method Detail

getCondition

public Expression getCondition()

setCondition

public void setCondition(Expression pCondition)

getTrueBranch

public Expression getTrueBranch()

setTrueBranch

public void setTrueBranch(Expression pTrueBranch)

getFalseBranch

public Expression getFalseBranch()

setFalseBranch

public void setFalseBranch(Expression pFalseBranch)

getExpressionString

public java.lang.String getExpressionString()

Returns the expression in the expression language syntax

Specified by:

getExpressionString in class Expression

evaluate

public java.lang.Object evaluate(VariableResolver vr,
                                 FunctionMapper f,
                                 Logger l)
                          throws ELException

Evaluates the conditional expression and returns the literal result

Specified by:

evaluate in class Expression

Throws:

ELException