[jbosstools-issues] [JBoss JIRA] Created: (JBIDE-6393) Create generic queryInterface method

[Yahor Radtsevich (JIRA)]

Create generic queryInterface method
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                 Key: JBIDE-6393
                 URL: https://jira.jboss.org/browse/JBIDE-6393
             Project: Tools (JBoss Tools)
          Issue Type: Task
          Components: Visual Page Editor core
    Affects Versions: 3.2.0.M1
            Reporter: Yahor Radtsevich
            Assignee: Maxim Areshkau
             Fix For: 3.2.0.M1


Our current approach to cast XULRunner types is to use nsISupports.queryInterface(String). Typical code using this method:
   nsIDOMMouseEvent mouseEvent = (nsIDOMMouseEvent) event
      .queryInterface(nsIDOMMouseEvent.NS_IDOMMOUSEEVENT_IID);
These long boilerplate calls are always look the same and they are far from object-oriented approach.

An object-oriented generic method is needed. It should look like the following:
   <T extends nsISupports> T queryInterface(nsISupports object,	Class<T> type)

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