How does the JBoss server detect when I drop a new WAR or EAR file into the drop directory? I noticed that JBoss (and I think other EJB containers) automagically expands a EAR/WAR file when it appears. Does it poll for new files?
I hope not. Windows has a function that allows C++ programmers to specify a call back function whenever there is a modification in the specified directory. I imagine linux/freebsd has this function too? I hope so.
Anyway, how can I write a java program that does not poll the file modification times to detect a new or modified file or directory? Can I do it with out JNI/C? I hope so.