Actions are small operations that Kanzi executes when the trigger event that contains that action occurs and the trigger conditions are met. More...

Inheritance diagram for Action:

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Public Member Functions
void	close ()
	Close the object, and release native resources.

Duration	getDelay ()
	Returns the delay that Kanzi waits before it invokes an action. More...

Trigger	getTrigger ()
	Returns the pointer to a trigger to which an action is attached. More...

void	invoke ()
	Invokes the action.

void	setDelay (Duration duration)
	Sets the delay that Kanzi waits before it invokes an action. More...

Public Member Functions inherited from ActionBase
String	getName ()
	Gets the name of an action. More...

Public Member Functions inherited from KanziObject
boolean	equals (Object object)

Domain	getDomain ()
	Returns the domain the object belongs to. More...

Metaclass	getDynamicMetaclass ()
	Returns the metaclass of the dynamic type of the object. More...

boolean	isStale ()
	Test if the object is stale i.e. More...

void	removeLocalValue (PropertyType propertyType)
	Removes the local value associated with the property. More...

Static Public Attributes
static final Metaclass	metaclass = com.rightware.kanzi.metadata.ActionMetadata.metaclass
	The Metaclass for the class.

Static Public Attributes inherited from ActionBase
static final Metaclass	metaclass
	The Metaclass for the class. More...

Static Public Attributes inherited from KanziObject
static final Metaclass	metaclass = new AbstractMetaclass("Kanzi.Object")
	The Metaclass for the class.

Protected Member Functions
	Action (Domain domain, long handle, Metaclass metaclass)
	Wraps a given native Action. More...

void	initialize ()
	Initializes the Action.

void	onAttach ()
	Callback called by Kanzi during attach.

void	onDelayedInvoke ()
	Callback called by Kanzi when the action is invoked by trigger with delay, after the delay duration expires. More...

void	onDetach ()
	Callback called by Kanzi during detach.

void	onInvoke ()
	Callback called by Kanzi when the action is invoked by its trigger without delay. More...

void	onPrepareDelayedInvoke ()
	Callback called by Kanzi when the action is invoked by its trigger with delay. More...

void	onUnprepareDelayedInvoke ()
	Kanzi calls this callback when an action is invoked by trigger with delay, after Action#onDelayedInvoke() callback, or when it cancels a delayed execution. More...

Static Protected Member Functions
static< Derived extends Action > ObjectRef< Derived >	createDerived (Domain domain, String name, Metaclass metaclass)
	Creates a derived class instance. More...

Additional Inherited Members
Public Attributes inherited from ActionBaseMetadata
AbstractMetaclass	metaclass = new AbstractMetaclass("Kanzi.ActionBase")
	Metaclass for ActionBase.

Public Attributes inherited from ActionMetadata
DynamicPropertyType< Integer >	DelayProperty
	The time in milliseconds after which Kanzi invokes the action. More...

AbstractMetaclass	metaclass = new AbstractMetaclass("Kanzi.Action")
	Metaclass for Action.

Detailed Description

Actions are small operations that Kanzi executes when the trigger event that contains that action occurs and the trigger conditions are met.

Action is the base class for actions. For example, if you want to perform a simple operation, such as set a value of a property, you can use a trigger with the SetPropertyAction action.

Kanzi provides a number of built-in action classes, such as SetPropertyAction that you can use to set the value of a property of a target node, and DispatchMessageAction that you can use to dispatch a message of specified type to a specified target. However, Kanzi also enables you to define your own actions by deriving from the Action class.

When you want to create an action that receives arguments of its triggering message or properties of a node, derive that action from the ForwardingAction class, which provides generic functionality for this purpose.

You can delay the invocation of an action by the amount of time that you set in the Action#DelayProperty

Constructor & Destructor Documentation

◆ Action()

Action	(	Domain	domain,
		long	handle,
		Metaclass	metaclass
	)

protected

Wraps a given native Action.

Called by KanziObject.connectObject(ObjectWrapper) when connecting to a native action.

Parameters

domain	UI Domain where this action belongs.
handle	Native object that is backing this action.
metaclass	Metaclass data for this action.

Member Function Documentation

◆ createDerived()

static <Derived extends Action> ObjectRef<Derived> createDerived	(	Domain	domain,
		String	name,
		Metaclass	metaclass
	)

staticprotected

Creates a derived class instance.

Call this method as part of the create method for a derived class.

Parameters

domain	UI Domain where this action belongs.
name	Name of the action
metaclass	Metaclass data of the action.

Returns: An ObjectRef that holds the created instance.

◆ getDelay()

Duration getDelay ( )

Returns the delay that Kanzi waits before it invokes an action.

You can set the delay in milliseconds with the Action#DelayProperty.

Returns: Delay for the action

◆ getTrigger()

Trigger getTrigger ( )

Returns the pointer to a trigger to which an action is attached.

Returns: The attached trigger.

◆ onDelayedInvoke()

void onDelayedInvoke ( )

protected

Callback called by Kanzi when the action is invoked by trigger with delay, after the delay duration expires.

Use this to execute an action with delay.

◆ onInvoke()

void onInvoke ( )

protected

Callback called by Kanzi when the action is invoked by its trigger without delay.

Use this to execute an action without delay.

◆ onPrepareDelayedInvoke()

void onPrepareDelayedInvoke ( )

protected

Callback called by Kanzi when the action is invoked by its trigger with delay.

Use this to prepare for delayed execution.

◆ onUnprepareDelayedInvoke()

void onUnprepareDelayedInvoke ( )

protected

Kanzi calls this callback when an action is invoked by trigger with delay, after Action#onDelayedInvoke() callback, or when it cancels a delayed execution.

An example of cancellation of delayed execution is when you detach the action before the execution is done. Use this function to roll back any preparations made for a delayed execution.

◆ setDelay()

void setDelay ( Duration duration )

Sets the delay that Kanzi waits before it invokes an action.

Parameters

duration The delay for invoking the action.

Public Member Functions

Static Public Attributes

Protected Member Functions

Static Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Action()

Member Function Documentation

◆ createDerived()

◆ getDelay()

◆ getTrigger()

◆ onDelayedInvoke()

◆ onInvoke()

◆ onPrepareDelayedInvoke()

◆ onUnprepareDelayedInvoke()

◆ setDelay()