public void dispose() {
if (topic != null) {
ITopic parent = topic.getParent();
if (parent != null) {
parent.remove(topic);
branch = null;
} else {
if (branch != null) {
branch.getStatus().deactivate();
branch.removeNotify();
removeBranchView();
branch.setParent(null);
branch = null;
}
}
topic = null;
}
}
