Initial code check in continued

src/instrument/Instrumentable.java

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+/*******************************************************************************
+ *     SDR Trunk 
+ *     Copyright (C) 2014 Dennis Sheirer
+ * 
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ * 
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ * 
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>
+ ******************************************************************************/
+package instrument;
+
+import instrument.tap.Tap;
+
+import java.util.List;
+
+/**
+ * Interface for classes that want to expose internal data, streams or events 
+ * to external listeners.
+ */
+public interface Instrumentable
+{
+	/**
+	 * Returns the list of available tap points.  Use the addTap() and
+	 * removeTap() to register a tap on the instrumentable class and then add
+	 * your TapListener(s) to the registered tap.
+	 */
+	public List<Tap> getTaps();
+
+	/**
+	 * Registers a tap on the instrumentable object.
+	 * 
+	 * @param tap - one of the tap(s) obtained from getTaps() from the 
+	 * instrumentable source
+	 */
+	public void addTap( Tap tap );
+
+	/**
+	 * Unregisters a tap on the instrumentable object, if the tap is currently
+	 * registered.
+	 * 
+	 * @param tap - one of the tap(s) obtained from getTaps() from the 
+	 * instrumentable source
+	 */
+	public void removeTap( Tap tap );
+}