org.camunda.bpm.engine.impl.el
Class UelExpressionCondition

java.lang.Object
  org.camunda.bpm.engine.impl.el.UelExpressionCondition

All Implemented Interfaces:

Condition

public class UelExpressionCondition
extends Object
implements Condition

Condition that resolves an UEL expression at runtime.

Author:

Joram Barrez, Frederik Heremans

Field Summary

protected Expression

expression

Constructor Summary

UelExpressionCondition(Expression expression)

Method Summary

boolean	evaluate(DelegateExecution execution) Evaluates the condition and returns the result.
boolean	evaluate(VariableScope scope, DelegateExecution execution) Evaluates the condition and returns the result.
boolean	tryEvaluate(VariableScope scope, DelegateExecution execution) Tries to evaluate the condition.

Methods inherited from class java.lang.Object

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

Field Detail

expression

protected Expression expression

Constructor Detail

UelExpressionCondition

public UelExpressionCondition(Expression expression)

Method Detail

evaluate

public boolean evaluate(DelegateExecution execution)

Description copied from interface: Condition

Evaluates the condition and returns the result. The scope will be the same as the execution.

Specified by:

evaluate in interface Condition

Parameters:

execution - the execution which is used to evaluate the condition

Returns:

the result

evaluate

public boolean evaluate(VariableScope scope,
                        DelegateExecution execution)

Description copied from interface: Condition

Evaluates the condition and returns the result.

Specified by:

evaluate in interface Condition

Parameters:

scope - the variable scope which can differ of the execution

execution - the execution which is used to evaluate the condition

Returns:

the result

tryEvaluate

public boolean tryEvaluate(VariableScope scope,
                           DelegateExecution execution)

Description copied from interface: Condition

Tries to evaluate the condition. If the property which is used in the condition does not exist false will be returned.

Specified by:

tryEvaluate in interface Condition

Parameters:

scope - the variable scope which can differ of the execution

execution - the execution which is used to evaluate the condition

Returns:

the result