There may be other better solutions, but if you are using Facelets the one
thing I have done in those situations is using an EL function such as:
<h:outputText value="#{my:datavalue(document, 'name', 'Default Value')}" />
Then, define the my:datavalue function in the tag library and have a static
method such as:
class Utils
{
public static String getDatavalue(Object o, String prop, String def)
{
// Use Property Utils, Bean Utils, etc to check if prop is
// is on object 'o' and if so, return it...otherwise,
// just return the def value...or just check if 'o' is
// instanceof some object and then use reflection to get
// the prop method and value
}
}
Nick
-----Original Message-----
From: Johnny Gonzalez [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 29, 2006 8:33 AM
To: MyFaces Discussion
Subject: instanceof into a c:test to select datatable column value??
Hello everybody,
I have a big problem,..
I have a JSF data table which can have several types
of objects, some have an attribute called name others
don't, so I need to have a conditional that depending
on the kind of object to show the name (if they have
it) or to show a specific string for example:
("Doesn't have"), so I tried this:
<c:choose>
<c:when test="#{null == document.name}">
<h:outputText value="Doesn't have"/>
</c:when>
<c:otherwise>
<h:outputText value="#{document.name}"/>
</c:otherwise>
</c:choose>
But this pulls me a message in console with something
like:
javax.faces.el.PropertyNotFoundException: Bean:
co.com.company.bo.document.MasiveDocumentBO, property:
name
What should I do?
All objects inherits from a class DocumentBO which has
all common attributes, inheriting from that class I
have:
MasiveDocumentBO
InternDocumentBO
ExternDocumentBO
The first class doesn't have that attribute, what
should I do?
Thanks a lot
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