container/activities/src/main/java/org/mobicents/slee/runtime/activity/ActivityContextCacheData.java
public boolean attachTimer(TimerID timerID) {
		final Node node = getAttachedTimersNode(true);
		if (!node.hasChild(timerID)) {
			node.addChild(Fqn.fromElements(timerID));
			return true;
		}
		else {
			return false;
		}
	}
public boolean attachTimer(TimerID timerID) {
		final Node node = getAttachedTimersNode(true);
		if (!node.hasChild(timerID)) {
			node.addChild(Fqn.fromElements(timerID));
			return true;
		}
		else {
			return false;
		}
	}
Attaches a timer

@param timerID