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Connector EventHandler

Overview

This EventHandler uses any Connector as an input event generator. The EventHandler will call the Connector's getNext method to obtain the next entry from the Connector. When a Connector reaches end of input it returns null. This EventHandler will continue to call the Connector's input method even after the Connector returns null. For some Connectors this may make sense whereas for others it does not.

For example, using the FileSystem Connector makes sense since the file read by the Connector may have data appended to it at any time. Connectors selecting a finite set of entries will eventually run out of entries and the EventHandler will continue forever waiting for new data. It is up to the user and Connector to make sense.

Configuration

The port listener needs the following parameters:

Parameter

Description

class com.architech.switchboard.connectorSwitchboard
pollInterval Number of seconds between each call to the Connector after a NULL entry has been received from the Connector.
Connector The Connector to use for input

Objects/Properties/Attributes

The EventHandler sets the following event properties:

Property Description
event.originator The EventHandler object.
event.connector The Connector object used by this EventHandler

 The event object also contains any attribute returned by the Connector.

Downloads

Included in base product since 4.0.3

See Also

EventHandler Overview

 

 

 

 

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  Metamerge Integrator version 4.6 ©Copyright Metamerge AS 2000-2002 Last edited 2002-06-10 contact us