ExpressionExecutionListener (Camunda Platform Javadocs 7.20.0-SNAPSHOT)

java.lang.Object
- org.camunda.bpm.engine.impl.bpmn.listener.ExpressionExecutionListener

All Implemented Interfaces:

DelegateListener<DelegateExecution>, ExecutionListener
```
public class ExpressionExecutionListener
extends Object
implements ExecutionListener
```
An ExecutionListener that evaluates a Expression when notified.

Author:

Frederik Heremans

Field Summary

Fields
Modifier and Type Field Description

protected Expression expression
- Fields inherited from interface org.camunda.bpm.engine.delegate.ExecutionListener
  EVENTNAME_END, EVENTNAME_START, EVENTNAME_TAKE

Constructor Summary

Constructors
Constructor Description

ExpressionExecutionListener(Expression expression)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getExpressionText()`	returns the expression text for this execution listener.
`void`	`notify(DelegateExecution execution)`

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
  - ExpressionExecutionListener
```
public ExpressionExecutionListener(Expression expression)
```
- Method Detail
  - notify
```
public void notify(DelegateExecution execution)
            throws Exception
```
    Specified by:
    
    notify in interface DelegateListener<DelegateExecution>
    
    Specified by:
    
    notify in interface ExecutionListener
    
    Throws:
    
    Exception
  - getExpressionText
```
public String getExpressionText()
```
    returns the expression text for this execution listener. Comes in handy if you want to check which listeners you already have.