Over the last couple of days I took some time to check out some of the new features and changes in the UI of the new JDeveloper version 188.8.131.52.0 (aka JDev12c). My other post on this issue already mentioned some features.
This new post adds some more:
UI & Handling
In my post Creating Variables and Attribute Bindings to Store Values Temporarily in the PageDef I showed how to setup page variables using the ‘variables’ iterator of the pageDef. There have been some change to the UI so that you can’t insert new variables via the pageDef editor (as it was in 11g). Variables are now added via the structure window only. I’m not sure if this is a bug or feature.
This is the feature you use to get help in the editor window when you hit ‘ctrl-space’ on Java code or a jsf tag. It shows you which methods (for java) or which properties (for tags) are available. You can open a ‘Documentation’ window which should get you the e.g. javadoc. It looks like this functionality does not work for ADF or Trinidad components at the moment.
For default java methods you get help as in earlier version
Compile and Rebuild
A new useful addition to the compilers errors and warnings are the ‘Live Issues’ in a tab you get when you compile or rebuild a project or class. This new tab allows you to quickly check audit rules and fix minor issues directly.
Another long waited for feature is the direct compile option which can be switched on in the preferences for the compiler settings (two last check boxes in the image below):
Activating this option will recompile all changes after you save them. If you change a page and save the changes (e.g. you add a detail item and add a table on it) you’ll get
<18.07.2013 17:27 Uhr MESZ> <Warning> <Socket> <BEA-000449> <Closing the socket, as no data read from it on 127.0.0.1:50.303 during the configured idle timeout of 5 seconds.> [05:50:33 PM] Updated /P:/jdeveloper/system/system184.108.40.206.40.66.68/o.j2ee/drs/BlogTest12c/BT12cViewControllerWebApp.war
but the added showDetailItem will not be able to retrieve the data. Instead you get an ‘Access denied’ message.
Clicking on ‘Compile’ to make it work you have to recompile it again to get
<18.07.2013 18:02 Uhr MESZ> <Warning> <Socket> <BEA-000449> <Closing the socket, as no data read from it on 127.0.0.1:51.020 during the configured idle timeout of 5 seconds.> [06:03:08 PM] Updated /P:/jdeveloper/system/system220.127.116.11.40.66.68/o.j2ee/drs/BlogTest12c/BT12cViewControllerWebApp.war/WEB-INF/classes
Now you should be able to retrieve the data too. Look like hot deployment is working!
Debugging an Application
When you debug an application you normally end up with lots of breakpoints in different files. This is OK until you localized the cause of an error you are debugging. However, once you have found it you like to resume normal work without hitting all the breakpoints set earlier. For this the debug button bar has a new button to disable all breakpoints with one click:
Edit Jsf Page
Not sure what we see here, but it looks like a quick way to edit labels of components. As long as the label property of a component is empty or shows an EL you get this little window where you can select a text resource, enter an EL or enter static text. Once you have static text in the property you don’t get the window until you remove the static text.
The Dependency Explorer allows you to quickly find where a component is used and how. This feature can be used e.g. to find out where a fragment is used.
Sample: you have a fragment open in the editor and like to know where this fragment is used in the project. Use menu ‘Search->Explore Dependency’ and you get a nice graphical display like:
Clicking on the numbers show you how the artifact is used (e.g. as taskflow call in another page)
The design view now allows a quick switch into the so called ‘True Mode’. This display mode hides all visual help you normally get when you create a page or fragment. A visual help are e.g. the name and size of facets (e.g. of a panelStretchLayout). Turning this off give you a better feeling how the resulting page will look like in the browser.
The ‘What’s New’ document mentiones ‘File Templates’ as
File Templates: Define custom file templates and invoke them from the gallery.
You’ll find them in the Preferences under ‘File Templates’, but I couldn’t find any documentation about how to use them.
If someone knows how to use them, drop me a note, please.
This concludes the findings on new or changes on JDev12c for now. I’m sure there are many more useful gem hidden and waiting to be discoverd.