com.iternum.swlink.activator
Class PropertyChangeActivator

java.lang.Object
  com.iternum.swlink.activator.AbstractActivator
      com.iternum.swlink.activator.PropertyChangeActivator

All Implemented Interfaces:

Activator, java.util.EventListener, java.beans.PropertyChangeListener

public class PropertyChangeActivator

extends AbstractActivator

implements java.beans.PropertyChangeListener

Author:

Karl F. Banke The activator object that uses a property change as its source.

Field Summary

static java.lang.String

PARAM_SOURCE_PROPERTY Property for parametrization.

Constructor Summary

PropertyChangeActivator()
Default Constructor.

PropertyChangeActivator(java.lang.String pSourcePropertyName)
Create a unidirectional property change link.

Method Summary

protected void	deregisterFromSource() Deregister this link from its source.
void	propertyChange(java.beans.PropertyChangeEvent pEvt) Invoke action if property change activates link.
protected void	registerWithSource() Register this link with its source.
void	setActivatorParam(java.util.Map pParam) Sets the activator filter params.

Methods inherited from class com.iternum.swlink.activator.AbstractActivator

close, getActivatable, getSource, setActivatable, setSource

Methods inherited from class java.lang.Object

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

Field Detail

PARAM_SOURCE_PROPERTY

public static final java.lang.String PARAM_SOURCE_PROPERTY

Property for parametrization.

See Also:

Constant Field Values

Constructor Detail

PropertyChangeActivator

public PropertyChangeActivator()

Default Constructor.

PropertyChangeActivator

public PropertyChangeActivator(java.lang.String pSourcePropertyName)

Create a unidirectional property change link.

Parameters:

pSourcePropertyName - The name of the source property

Method Detail

registerWithSource

protected final void registerWithSource()

Register this link with its source.

Specified by:

registerWithSource in class AbstractActivator

deregisterFromSource

protected void deregisterFromSource()

Deregister this link from its source.

Specified by:

deregisterFromSource in class AbstractActivator

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent pEvt)

Invoke action if property change activates link. In case the property name of the PropertyChangeEvent is equal to the source property name or the source property name is not set the currently set action for the link is performed.

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

Parameters:

pEvt - The incoming property change event

See Also:

(java.beans.PropertyChangeEvent)

setActivatorParam

public void setActivatorParam(java.util.Map pParam)

Description copied from interface: Activator

Sets the activator filter params. The params can be used to configure the activator. For example, for a property change activator, a typical param would be the String propertyName.

Specified by:

setActivatorParam in interface Activator

Parameters:

pParam - A Map containing a String property name used to activate this link.