JDeveloper: JEE Web Application

I had to throw together a quick demo of the JDeveloper JEE functionality and was pleasantly surprised what Jdeveloper give you for free. Will be posting some of what I have found.

Create a New JEE Web Application and press OK button

Fill in your info here replacing ProjectName with your project

Name: App
Package prefix: eg: za.co.test
Next * 5
Finish

Now on to creating an EJB Entity: Select Entities from Tables and click ok

As we are creating the first ejb in the app you can click next on the persistance unit screen.

I am going to select the countries and regions tables from the HR schema by selecting them and clicking the blue arrow after querying all the tables. Next.

Next Select Discover foriegn keys dynamically.

Next * 3 but take note of the info in the screens. (You can change the class and package names etc)

Finish

Now take note of the java classes created complete with annotaions and relationships very nifty.

Also take a look at the persistence.xml file created in the META-INF dir.

You have created you first next on to a session bean to expose methods on these entities. Will post this soon.

Comments

ADF sort of generic screen for tables with the same structure

We have a couple (about a hundred) of tables with the same structure (Code, Description, Create Date, Update Date). So I wanted to do something simple so that I did not have to create all these screens 1) EO I created the EO based on one of the tables I had that had the above columns. I then Added a transient attribute called table name to my EO based on a groovy expression. (the expression needs to change as I am reading web tier stuff from the model layer but I will fix this later) I then generated a java class for my EO. And added the following overriden method to my newly created java class. protected StringBuffer buildDMLStatement(int i, AttributeDefImpl[] attributeDefImpl, AttributeDefImpl[] attributeDefImpl2, AttributeDefImpl[] attributeDefImpl3, boolean b) { StringBuffer statement = super.buildDMLStatement( i, attributeDefImpl, attributeDefImpl2, attributeDefImpl3, b); return new StringBuffer(StringUtils.replace(statement.to...

MANIFEST.MF merge JDeveloper for an executable jar

Goto your project > properties. Then click on deployment in the menu. Edit or add a jar deployment profile. Fill in the details under jar options (select Include manifest and give it a main class name) Also remember that the merge functionality only works with a BLANK line at the end of the merge file. REALLY this caught me. My merge file contents: Class-Path: commons-codec-1.3.jar [...empty line here CRLF...]

ADF: LOV Description instead of code

I keep on forgetting how to do this so this is a note to self in terms I understand (ie pictures): Add the related entiy object to yours (in the example we are adding RegionEO(list of values) to CountryEO) Now add the RegionName field from the EO and a transient attribute (I named mine RegionNameLOV) Make the transient attribute updateable and base it on the expression RegionName (the description you wish to display) Add a list of values to RegionNameLOV and map BOTH key to parent fk (region id here) AND RegionName to your transient coulmn (RegionNameLOV). Map the transient as an Input text with List of Values. Then just drag the lov item onto the page (RegionNameLOV)

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