Creating Event Listener Server

Event Listener Server needs to be created in order to receive the events fired by java components. Events can be added using addListenerToComponent method of either index based API or search path based API. The listeners can be removed using removeListenerToComponent method from the same classes.

 

The Event Server should be created with below details.

Need one method to be exposed by the server, which will be called from event listener at java side.

 

Syntax of the method will be as below.

public  booleanEventDispatcher(String pid, String port, String eventType, 

String eventDesc, String source, String value, String oldValue);

 

This method can return true always after processing event. This method is called asynchronously by the all event listeners from java.

The server should run on the below URL: http://localhost:<eventServerPort>/<eventServerRemURL>

 Where, <eventServerPort> should be the value specified from wrapper side for every new instance of SE opened. eventServerRemURL is the value same as specified in proton.application.properties file with key as eventserverRemURL.

 

Method should be exposed as <eventServerHandler>.EventDispatcher, where <eventServerHandler> is the value same as specified in proton.application.proeprties file with key as eventServerHandler.

 

The sample example of the URL and method exposed can be as below.

URL: http://localhost:4567/EventServer

Handler: eventObj.EventDispatcher 

 

Below table specified the list of events that are supported with sub-type (description).

 

Event Type	Event Description	Event occur situation
mouseEvent	mouseClicked	When mouse is pressed and released
	mouseEntered	when mouse pointer enters the component
	mouseExited	when mouse pointer exits the component
	mousePressed	when mouse is pressed on the component
	mouseReleased	when mouse is released from the component
focusEvent	focusGained	when component gains the focus
	focusLost	when component loses the focus
keyEvent	keyPressed	when key is hold down
	keyReleased	when key is released
	keyTyped	when key is hold down and released
treeSelectionChangeEvent	DESELECTED	whenever tree node is deselected
	SELECTED	whenever tree node is selected
treeModifiedEvent	treeNodesChanged	when the tree node undergoes any changes
	treeNodesInserted	when new tree node is inserted
	treeNodesRemoved	when tree node is removed
	treeStructureChanged	when tree structure is re-organized
comboBoxSelectionChangeEvent	DESELECTED	when item is de-selected
	SELECTED	when item in combo box is selected
tableSelectionChangeEvent	selectionChanged	whenever table selection changes
windowEvent	windowActivated	when window is activated
	windowClosed	when window is closed
	windowClosing	when window is closing
	windowDeactivated	when window is deactivated
	windowDeiconified	when window state change to maximize or restore
	windowIconified	when window state is changed to minimized
	windowOpened	when window is opened
internalFrameEvent	internalFrameActivated	when frame is activated
	internalFrameClosed	when frame is closed
	internalFrameClosing	when frame is closing
	internalFrameDeactivated	when frame is deactivated
	internalFrameDeiconified	when window state change to maximize or restore
	internalFrameIconified	when frame state is changed to minimized
	internalFrameOpened	when frame is opened

 

Note that, the events will be fired automatically by application, and we are just capturing the event information and sending it to .NET. If there are multiple events getting fired for single operation or some events are not getting fired, is according to applications behavior.