org.camunda.bpm.engine.impl
Interface Condition

All Known Implementing Classes:

ScriptCondition, UelExpressionCondition

public interface Condition

Author:

Tom Baeyens, Christopher Zell

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.

Method Detail

evaluate

boolean evaluate(DelegateExecution execution)

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

Parameters:

execution - the execution which is used to evaluate the condition

Returns:

the result

evaluate

boolean evaluate(VariableScope scope,
                 DelegateExecution execution)

Evaluates the condition and returns the result.

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

boolean tryEvaluate(VariableScope scope,
                    DelegateExecution execution)

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

Parameters:

scope - the variable scope which can differ of the execution

execution - the execution which is used to evaluate the condition

Returns:

the result