Override attribute label values?

Question

Hi!
I want to override view attribute label default values and replace them with translations that I get from a database table.
I've made custom classes TranslateViewDefImpl (overriden function 'getAttributeDefImpls') which extends ViewDefImpl, TranslateViewObjectImpl (overriden 'getViewAttributeDefImpls') extends ViewObjectImpl, TranslateViewRowImpl (overriden 'createViewRowAttrHints' following this post) extends ViewRowImpl where I try to override attribute definitions.
I used 'setProperty' method on attribute definitions to set 'AttributeHints.ATTRIBUTE_LABEL' and at first everything seemed fine - the right attribute translation appeared. But the problem is when we have two or more clients with different locale using the same page. In overriden methods using 'adi.setProperty(AttributeHints.ATTRIBUTE_LABEL, labelTranslation)', label gets set to the right client's (A) locale translation, but the problem is when another client B with different locale accesses the same page. At first he sees the right translations, but when the first client A refreshes the page, all attribute label translations are in the wrong locale (using client B's locale). When client A refreshes the page again, labels are in the right locale again, but when client B refreshes, he sees client A's locale translations.
It looks like these overriden classes are all static for the whole application and when a property gets set, all clients are using the same property, adi.getProperty(AttributeHints.ATTRIBUTE_LABEL) returns the same value for all clients using the application.
Then I stumbled accross this next post. At first I thought I've found the solution, but when I tried this approach it didn't work. This is the code:
AttributeDefImpl at = (AttributeDefImpl) vo.getAttributeDef(0); 
     at.setProperty(AttributeDefImpl.ATTRIBUTE_LABEL +"_ResId",  
                    "VEmployees.Id_LABEL"); 
     at = (AttributeDefImpl) vo.getAttributeDef(1); 
     at.setProperty(AttributeDefImpl.ATTRIBUTE_LABEL +"_ResId",  
                    "VEmployees.LastName_LABEL"); 
     ViewDefImpl viewDef = (ViewDefImpl) ((ViewObjectImpl) vo).getDef(); 
     //Create custom properties bundle definition 
     PropertiesBundleDef rb = new PropertiesBundleDef(viewDef); 
     rb.setPropertiesFile("com.cs.blog.dynamicbundle.model.VEmployeesBundle"); 
     viewDef.setResourceBundleDef(rb); 
I can't find anywhere documentation using "_ResId" with AttributeDefImpl.ATTRIBUTE_LABEL and setting my own resource bundle (that gets all translations from a database source). When I use this approach, attribute label values are not changed and have their default value.
Please help. Is my approach way off? How did you translate view attribute labels using database translations?
I'm using JDevelper 11.1.2.3.0

Answer 1

Marko,
All you need is:
1. Your EO to point towards a ListResourceBundle class, instead of the default property bundle, as I described above.
2. Each EO attribute to have the right name for the label:
    <Attribute
          Name="CountryNo"
          Precision="22"
          ColumnName="CountryNo"
          SQLType="NUMBER"
          Type="java.math.BigDecimal"
          ColumnType="NUMBER"
          IsPersistent="false"
          IsUpdateable="false">
        <Properties>
            <SchemaBasedProperties>
                <LABEL
                      ResId="COUNTRY_NO_LABEL"/>
                <FMT_FORMATTER
                      ResId="DefaultNumberFormatter_FMT_FORMATTER"/>
                <FMT_FORMAT
                      ResId="MASK_NUMBER_1"/>
            </SchemaBasedProperties>
        </Properties>
    </Attribute>
Here, you will need COUNTRY_NO_LABEL to be a key in your  dynamic resource bundle .
As for my last comments, I am just pointing out that if you will add your labels through JDeveloper UI (through UI Hints tab), JDeveloper might try to change your code from ListResource class. Is why is better to do it manually, I think.
Hope this helps,
Florin