Actors & Use Cases are UML model elements that helps modeling system requirements. Actors are those that interact with the system and those external systems with which the system interacts. A bank customer to an ATM System is an actor to the system and also the external system with which the ATM System interacts (passing on the transaction details) is also an actor. If...
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  If you have understood factory pattern, understanding abstract factory is a cake walk. How many create methods you have in a factory ? Answer is 1. How many product(s) does a factory return ? Answer is 1. Now if you are asked how many create methods or in other words, how many product(s) does an abstract factory create ? - Answer will be : More than 1. Abstract factory...
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The order in which the events are dispatched by the application are preinitialize(), initialize(), creationComplete(), updateComplete() and applicationComplete(). The events in more detail: preinitialize()  is dispatched when the component has been attached to its parent container, but before the component has been initialized, or any of its children have been created. In most...
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Using hooks customizing jsp page of a existing liferay portlet. In this example I am taking portlet asset-publisher.    Step 1: Go to plugins/hooks create a folder with any name. eg asset-publisher-hook Step 2: Go to asset-publisher-hook create folder docroot and build.xml file. Content of build.xml should be like this: <?xml version="1.0"?> <project...
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