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Allows a component to attach logic to a start event. For example:

public void onStart() {
   LOG.log(Level.INFO, “onStart() invoked!");
}

Dependencies: onStart() is invoked after onInit() and before onInstall() and onUpdate(), therefore onStart() should not depend on logic contained within onInstall() and onUpdate():

onInit()

onStart()

onInstall()

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onInit()

onStart()

onUpdate()

Allows a component to attach logic to an install event. For example:

public void onInstall() {
   LOG.log(Level.INFO, “onInstall() invoked!");
}

Dependencies: onInstall() is invoked after onInit() and onStart():

onInit()

onStart()

onInstall()

Allows a component to attach logic to a stop event. For example:

public void onStop() {
   LOG.log(Level.INFO, “onStop() invoked!");
}

Dependencies: onStop() is invoked before onDestroy(), therefore it should not depend on logic contained within onDestroy():

onStop()

onDestroy()

Allows a component to attach logic to an update event. For example:

public void onUpdate() {
   LOG.log(Level.INFO, “onUpdate() invoked!");
}

Dependencies: onUpdate() is invoked after onInit() and onStart():

onInit()

onStart()

onUpdate()

Allows a component to attach logic to an uninstall event. The plugin containing the component must be in an active state in order for the onUninstall() method to be invoked. For example:

public void onUninstall() {
   LOG.log(Level.INFO, “onUninstall() invoked!");
}

Dependencies: onUninstall() is invoked before onStop() and onDestroy(), therefore it should not depend on logic contained within onStop() and onDestroy():

onUninstall()

onStop()

onDestroy()

Allows a component to attach logic to a purge event.

public void onPurge() {
   LOG.log(Level.INFO, “onPurge() invoked!");
}

Dependencies: onPurge() has no dependencies.

Allows a component to attach logic to an init event. For example:

public void onInit() {
   LOG.log(Level.INFO, “onInit() invoked!");
}

Dependencies: onInit() is always invoked first, therefore it should not depend on logic from any other method.

Allows a component to attach logic to a destroy event. For example:

public void onDestroy() {
   LOG.log(Level.INFO, “onDestroy() invoked!");
}

Dependencies: onDestroy() has no dependencies:

onStop()