ConditionalExpression (jbpm-3.1.3) - JBoss JBPM 3.1.3 API 英文版文档

Overview

Package

Class

Tree

Deprecated

Index

Help

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

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
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 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