public DirectoryDescendingFileFinderImpl(File root, FilenameFilter filter, boolean canonical)
throws IOException {
if (!root.isDirectory())
throw new IllegalArgumentException(root.getName() + " is not a directory.");
this.filter = filter;
this.canonical = canonical;
blossomDirectory(root);
while (files.empty() && !direx.empty()) blossomDirectory((File) direx.pop());
}
public File nextFile() throws IOException {
if (files.empty()) throw new NoSuchElementException();
File out = (File) files.pop();
while (files.empty() && !direx.empty()) blossomDirectory((File) direx.pop());
return out;
}
public boolean hasMoreFiles() {
return !files.empty();
}