Initialize the Default Event Bus Statically #23
@ -52,26 +52,18 @@ public final class EventBus {
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*/
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public static final int DEFAULT_PRIORITY = 100;
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private static volatile EventBus singletonInstance;
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private static final EventBus singletonInstance = new EventBus();
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private static final Logger logger = System.getLogger(EventBus.class.getName());
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/**
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* Produces a singleton instance of the event bus. It is lazily initialized on the first call.
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* Returns the default event bus, which is a statically initialized singleton instance.
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*
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* @return a singleton instance of the event bus.
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* @return the default event bus
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* @since 0.0.2
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*/
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public static EventBus getInstance() {
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EventBus instance = singletonInstance;
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if (instance == null)
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synchronized (EventBus.class) {
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if ((instance = singletonInstance) == null) {
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logger.log(Level.DEBUG, "Initializing singleton event bus instance");
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instance = singletonInstance = new EventBus();
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}
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}
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return instance;
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return singletonInstance;
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}
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private final Map<Class<?>, TreeSet<EventHandler>> bindings =
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