EL expression for maximum length of column of underlying EO

Question

Hi all,
I am using ADF Faces with ADF BC as the model layer. I have a simple inputText component on the screen that shows 32 characters (columns property = 32). The underlying database table can hold 128 characters. Is there any EL expression that I can use for the maximum length? I have tried the EL expression builder, but I don't see any property that looks promising (#{bindings.fieldname.<something>} is what I'm looking for)
Thanks,
John

Answer 1

Chris,
In 10.1.3.2, we already automatically drop an EL expression for the Columns property that is bound to the Display Width hint.
It will look like:
            <af:inputText value="#{bindings.Dname.inputValue}"
                          label="#{bindings.Dname.label}"
                          required="#{bindings.Dname.mandatory}"
                          columns="#{bindings.Dname.displayWidth}">
              <af:validator binding="#{bindings.Dname.validator}"/>
            </af:inputText>If the developer has not supplied a custom value of Display Width, then it defaults to the maximum length of the attribute.
If you have provided a custom Display Width hint that is shorter than the maximum length, then you can reference the maximum length by using the precision property of the attribute definition, as shown in the EL expression for maximumLength below.
            <af:inputText value="#{bindings.Dname.inputValue}"
                          label="#{bindings.Dname.label}"
                          required="#{bindings.Dname.mandatory}"
                          columns="#{bindings.Dname.displayWidth}"
                          maximumLength="#{bindings.Dname.attributeDef.precision}">
              <af:validator binding="#{bindings.Dname.validator}"/>
            </af:inputText>