1 files changed, 43 insertions, 0 deletions
diff --git a/java/JACE/Reactor/EventHandler.java b/java/JACE/Reactor/EventHandler.java
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+++ b/java/JACE/Reactor/EventHandler.java
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+/*************************************************
+ *
+ * = PACKAGE
+ *    JACE.Reactor
+ *
+ * = FILENAME
+ *    EventHandler.java
+ *
+ *@author Prashant Jain
+ *
+ *************************************************/
+package JACE.Reactor;
+
+import JACE.ASX.TimeValue;
+
+/**
+ *     Provides an abstract interface for handling timer events.
+ * <P>
+ *     Classes implementing this interface handle a timer's
+ *     expiration.
+ * <P>
+ * Users of C++ ACE will notice that this defines a substantially
+ * smaller interface than the C++ counterpart.  Signal events are
+ * absent due to the complete absence of this feature from Java itself.
+ * Moreover, at this point
+ * there is still some question regarding whether or not the I/O
+ * portion will make any sense or fit into the Java model for I/O.
+ *
+ *@see JACE.Reactor.TimerQueue
+ *@see JACE.Reactor
+ */
+public interface EventHandler
+{
+  /** 
+   * Called when timer expires.
+   *@param tv Time Value for which timer was set
+   *@param obj An arbitrary object that was passed to the Timer Queue
+   * (Asynchronous Completion Token)
+   */
+  public int handleTimeout (TimeValue tv, Object obj);
+}
+
+// Note that more methods will be added as needed