Trigger (taskplanner)

```
public interface Trigger
```
The Trigger initiates the execution of a task.
```
      TriggerDefinition ----> TriggerFactory ----> Trigger
 
```
Triggers are produced by the corresponding TriggerFactory. Triggers are produced when a Task is created or updated in the TaskPlanner.
Since:

taskplanner 3.0

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface Trigger.TriggerAction
Action to run if the trigger decides that time for execution has come.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method	Description
`default void`	`activate(com.inet.id.GUID taskID, Trigger.TriggerAction action)`	Activates this trigger.
`default void`	`activate(Trigger.TriggerAction action)`	Deprecated.
`void`	`deactivate()`	Deactivates this trigger.

- Method Detail
  - activate
```
default void activate(com.inet.id.GUID taskID,
                      Trigger.TriggerAction action)
```
    Activates this trigger. Only activated triggers must call the given action. A trigger is activated if the task of the trigger is activated.
    
    Parameters:
    
    taskID - id of the triggered task
    
    action - this action must be executed when this trigger triggers.
    
    Since:
    
    taskplanner 4.1
  - activate
```
@Deprecated
default void activate(Trigger.TriggerAction action)
```
    Deprecated.
    
    Activates this trigger. Only activated triggers must call the given action. A trigger is activated if the task of the trigger is activated.
    
    Parameters:
    
    action - this action must be executed when this trigger triggers.
    
    Throws:
    
    java.lang.UnsupportedOperationException - if not override
    
    Since:
    
    taskplanner 3.0
  - deactivate
```
void deactivate()
```
    Deactivates this trigger. Triggers are deactivated if the owning task is deactivated, deleted or modified where this trigger (-definition) is dropped or changed.
    
    Since:
    
    taskplanner 3.0