protected boolean unregisterTask(@Nonnull CommonTask commonTask) {
boolean removed = this.tasks.remove(commonTask);
if (removed && this.state.equals(State.ACTIVE)) {
commonTask.stop();
}
return removed;
}
protected boolean registerTask(@Nonnull CommonTask commonTask) {
boolean added = this.tasks.add(commonTask);
if (added && this.state.equals(State.ACTIVE)) {
commonTask.start();
}
return added;
}
@Override
public boolean setState(@Nonnull State state) throws UnsupportedOperationException {
Preconditions.checkNotNull(state, "state cannot be null.");
boolean change = this.state.isIdle() != state.isIdle();
this.state = state;
if (change) {
for (CommonTask task : this.tasks) {
task.setState(state);
}
if (state.equals(State.ACTIVE)) {
for (Listener listener : this.listeners) {
this.plugin.registerEvents(listener);
}
} else if (state.equals(State.STOPPED)) {
for (Listener listener : this.listeners) {
this.plugin.unregisterEvents(listener);
}
}
}
return change;
}