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Posts tagged with 'batch'

The JavaEE part of the Tools now contains support for JSR-352 batch files. I’d like to show you the main features of the new visual editor available in JBoss Tools 4.3 and Developer Studio 9.

It extends the tree-form editor previously developed by the JBoss Tools team. There are now 3 ways to edit the batch XML files, represented by the 3 editor tabs:

  • Source (XML text editor)

  • Design (tree-form editor)

  • Diagram (visual editor)

Visual Editor for JEE Batch

Focus on Structure

The goal of the Diagram tab is to visualize the flowchart-like structure of batch jobs. Don’t bother editing the XML by hand and tracking down paths in your batch’s workflow. Instead, you can manipulate batch elements directly with your mouse.

Just select the proper objects from the palette, place them in the diagram and draw transitions among them. The editor visualizes all step, flow, split and decision elements, transitions using next attribute and next on elements and also terminating elements (fail, stop, end). If you need to edit elements nested inside a flow, just double-click its icon to switch the contents of the editor to the flow internals.

You also don’t need to reorder XML elements to set an element as a start. Just use Set as Start action.

Properties View

The diagram is useful for displaying structures but sometimes we would like to different things like to assign a Java bean to a batchlet. That’s when the Properties View comes in handy. Its content is changed according the current selection in the diagram and it serves for filling in various form data.

Properties View

Tip: Use Ctrl+Space to get content proposal.

Edit Anywhere

The diagram editor is integrated with the tree-form editor and the XML text editor in the way that all changes are propagated immediately between these three views. Use any of the editor tabs and you’ll see the changes reflected in the other tabs.

Content Assist

The editor is aware of the batch nature of your project and provides content proposal. It helps to fill in names batch artifacts such as jobs or flows, specific Java classes (your subclasses of ItemReader ItemWriter etc.) or exception classes. You may refer to your beans also by their name defined by the @Named annotation.

Get It Now

Just download the latest 9 release of JBoss Developer Studio or 4.3 version of JBoss Tools to get started. To quickly create a new file, try e.g. the wizard for creating batch files by selecting File  New  Other  Batch  Batch Job XML File.

Enjoy using the editor and give us some feedback!

Tomáš Milata
@tomas_milata

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