1 files changed, 84 insertions, 0 deletions
diff --git a/Java/com/phidgets/event/EncoderPositionChangeEvent.java b/Java/com/phidgets/event/EncoderPositionChangeEvent.java
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+++ b/Java/com/phidgets/event/EncoderPositionChangeEvent.java
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+/*
+ * Copyright 2006 Phidgets Inc.  All rights reserved.
+ */
+
+package com.phidgets.event;
+
+import com.phidgets.Phidget;
+
+/**
+ * This class represents the data for a EncoderPositionChangeEvent.
+ * 
+ * @author Phidgets Inc.
+ */
+public class EncoderPositionChangeEvent
+{
+	Phidget source;
+	int index;
+	int value;
+	int time;
+
+	/**
+	 * Class constructor. This is called internally by the phidget library when creating this event.
+	 * 
+	 * @param source the Phidget object from which this event originated
+	 */
+	public EncoderPositionChangeEvent(Phidget source, int index, int time, int value) {
+		this.source = source;
+		this.index = index;
+		this.value = value;
+		this.time = time;
+	}
+
+	/**
+	 * Returns the source Phidget of this event. This is a reference to the Phidget object from which this
+	 * event was called. This object can be cast into a specific type of Phidget object to call specific
+	 * device calls on it.
+	 * 
+	 * @return the event caller
+	 */
+	public Phidget getSource() {
+		return source;
+	}
+
+	/**
+	 * Returns the index of the encoder.
+	 * 
+	 * @return the index of the encoder
+	 */
+	public int getIndex() {
+		return index;
+	}
+
+	/**
+	 * Returns the position change of the encoder. This is the amount of change in the encoder's position
+	 * since the last {@link #EncoderPositionChangeEvent}.
+	 * 
+	 * @return the change in position of the encoder
+	 */
+	public int getValue() {
+		return value;
+	}
+
+	/**
+	 * Returns the timestamp of this position change. This is the time since the last {@link #EncoderPositionChangeEvent}.
+	 * This time is not represented in a real quantitly such as seconds, but can be used as a qualitative quantity.
+	 * 
+	 * @return the timestamp of this change event
+	 */
+	public int getTime()
+	{
+		return time;
+	}
+
+	/**
+	 * Returns a string containing information about the event.
+	 * 
+	 * @return an informative event string
+	 */
+	public String toString() {
+		
+		return source.toString() + " encoder position " + index + " changed by "
+		  + value + " Time: " + time;
+	}
+}