range definitions for the y-axis

Sometimes it is useful to specify the certain y-axis range. For example
when you are only interested in the values that take longer than a
threshold. Or when you want to exclude some outliers. When you want to
compare plots in a gallery, it is very handy when all plots have the
same data-area.

pdb-ui/src/main/java/org/lucares/pdbui/domain/PlotRequest.java

@@ -30,6 +30,10 @@ public class PlotRequest {
 
 	private Aggregate aggregate = Aggregate.NONE;
 
+	private int yRangeMin;
+	private int yRangeMax;
+	private TimeRangeUnit yRangeUnit = TimeRangeUnit.AUTOMATIC;
+
 	private boolean keyOutside;
 
 	private boolean generateThumbnail;
@@ -154,4 +158,27 @@ public class PlotRequest {
 		this.generateThumbnail = generateThumbnail;
 	}
 
+	public int getyRangeMin() {
+		return yRangeMin;
+	}
+
+	public void setyRangeMin(final int yRangeMin) {
+		this.yRangeMin = yRangeMin;
+	}
+
+	public int getyRangeMax() {
+		return yRangeMax;
+	}
+
+	public void setyRangeMax(final int yRangeMax) {
+		this.yRangeMax = yRangeMax;
+	}
+
+	public TimeRangeUnit getyRangeUnit() {
+		return yRangeUnit;
+	}
+
+	public void setyRangeUnit(final TimeRangeUnit yRangeUnit) {
+		this.yRangeUnit = yRangeUnit;
+	}
 }

pdb-ui/src/main/java/org/lucares/pdbui/domain/TimeRangeUnit.java

@@ -0,0 +1,5 @@
+package org.lucares.pdbui.domain;
+
+public enum TimeRangeUnit {
+	AUTOMATIC, MILLISECONDS, SECONDS, MINUTES, HOURS, DAYS
+}