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jvx:reference [2020/06/10 13:08] cduncan [The launcher] |
jvx:reference [2020/06/10 13:15] cduncan [What is it?] |
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| The method ''%%startup()%%'' is invoked on the main Swing thread, which also happens to be the main UI thread for [[https://sourceforge.net/projects/jvx/|JVx]] in this application. Once we are on the main UI thread, we can create the application, add it, and then set everything to visible. | The method ''%%startup()%%'' is invoked on the main Swing thread, which also happens to be the main UI thread for [[https://sourceforge.net/projects/jvx/|JVx]] in this application. Once we are on the main UI thread, we can create the application, add it, and then set everything to visible. | ||
| - | ===== The application ===== | + | ===== The Application ===== |
| - | The ''%%IApplication%%'' implementation is quite short, because we extend ''%%com.sibvisions.rad.application.Application%%'', an ''%%IApplication%%'' implementation created with UI components. | + | The ''%%IApplication%%'' implementation is quite short because we extend ''%%com.sibvisions.rad.application.Application%%'', an ''%%IApplication%%'' implementation created with UI components. |
| <code java> | <code java> | ||
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| } | } | ||
| </code> | </code> | ||
| - | Because the launcher has previously started the technology and created the factory we can from here on now use UI components, which means we are already independent of the underlying technology. So the ''%%IApplication%%'' implementation can already be used with different technologies and is completely independent. | + | Because the launcher has previously started the technology and created the factory, we can now use UI components, which means we are already independent of the underlying technology. So, the ''%%IApplication%%'' implementation can already be used with different technologies and is completely independent. |
| - | ===== Notes on the launcher ===== | + | ===== Notes on the Launcher ===== |
| - | As you might have noticed, in our example the launcher is a (window) frame, that makes sense for nearly every desktop GUI toolkit as they all depend upon a window as main method to display their applications. But the launcher could also be simpler, for example just a call to start the GUI thread. Or it could be something completely different, for example an incoming HTTP request. | + | As you might have noticed, in our example the launcher is a (window) frame. That makes sense for nearly every desktop GUI toolkit as they all depend upon a window as main method to display their applications. But the launcher could also be simpler: for example, just a call to start the GUI thread. Or it could be something completely different: for example, an incoming HTTP request. |
| - | Also don’t forget that the launcher is providing additional functionality to the application, like saving file handles, reading and writing the configuration and similar platform and toolkit dependent operations, see the [[https://sourceforge.net/p/jvx/code/HEAD/tree/trunk/java/swing/src/com/sibvisions/rad/ui/swing/impl/SwingApplication.java|launcher for Swing for further details]]. | + | Also, don’t forget that the launcher is providing additional functionality to the application, like saving file handles, reading and writing the configuration, and similar platform and toolkit-dependent operations. See the [[https://sourceforge.net/p/jvx/code/HEAD/tree/trunk/java/swing/src/com/sibvisions/rad/ui/swing/impl/SwingApplication.java|launcher for Swing for further details]]. |
| ===== Conclusion ===== | ===== Conclusion ===== | ||
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| ===== What is it? ===== | ===== What is it? ===== | ||
| - | DataBooks are an active model, which allow you to directly query and manipulate the data. Contrary to many other systems [[https://sourceforge.net/projects/jvx/|JVx]] does not map the data into objects, but instead allows you to directly access it in a table like fashion, exposing columns, rows and values. | + | DataBooks are an active model, which allow you to directly query and manipulate the data. Contrary to many other systems, [[https://sourceforge.net/projects/jvx/|JVx]] does not map the data into objects, but allows you to directly access it in a table-like fashion exposing columns, rows, and values. |
| - | One could say that it is like a three dimensional array, with these dimensions: | + | One could say that it is like a three dimensional array with these dimensions: |
| * DataPages | * DataPages | ||
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| * Columns/Values | * Columns/Values | ||
| - | With DataPages containing DataRows, which itself contain the values and everything is referencing the RowDefinition, which outlines how a row looks like. | + | with DataPages containing DataRows, which in turn contain the values and everything referencing the RowDefinition, which further outlines how a row looks like. |
| {{:jvx:reference:databook.png?nolink|DataBook Architecture, the DataBook contains DataPages, which contain DataRows.}} | {{:jvx:reference:databook.png?nolink|DataBook Architecture, the DataBook contains DataPages, which contain DataRows.}} | ||