Using JNDI to establish dependencies

Question

Hi, I'm wondering whether anyone here has used the method of tracking JNDI lookups
to establish dependencies between components. I'm trying to establish a dependency
chain on the server side by which I can authoritatively say that a particular
transaction follows a certain path through a set of components. Is this possible
with WLS?

Answer 1

It is not possible to create automagically arbitrary files directly
via FSContext. However it is possible to delete them.
A little example might clarify things:
Context ctx = new InitialContext(env);
System.out.println(ctx.getClass().toString());
// create file
String filename = "foo.txt";           
File f = new File(ctx.getNameInNamespace() + "/" + filename);
// store it to file system
if (f.createNewFile())
System.out.println("File " + filename  + " created");           
// note you cannot do ctx.rebind(filename  ,f) with RefFSContext because File is not Referenceable
// check that the file can be found via JNDI
f = (File)ctx.lookup(filename);
System.out.println(f.getClass().toString()  + " " + f.toString());
// delete file
ctx.unbind(filename); // <---physically deletes fileCheers,
Kullervo