limit the number of plots

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

@@ -0,0 +1,5 @@
+package org.lucares.pdbui.domain;
+
+public enum LimitBy {
+	NO_LIMIT, MOST_VALUES, FEWEST_VALUES
+}

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

@@ -9,6 +9,10 @@ public class PlotRequest {
 
 	private String groupBy;
 
+	private LimitBy limitBy = LimitBy.NO_LIMIT;
+
+	private int limit = Integer.MAX_VALUE;
+
 	public String getQuery() {
 		return query;
 	}
@@ -45,4 +49,20 @@ public class PlotRequest {
 	public void setGroupBy(final String groupBy) {
 		this.groupBy = groupBy;
 	}
+
+	public LimitBy getLimitBy() {
+		return limitBy;
+	}
+
+	public void setLimitBy(final LimitBy limitBy) {
+		this.limitBy = limitBy;
+	}
+
+	public int getLimit() {
+		return limit;
+	}
+
+	public void setLimit(final int limit) {
+		this.limit = limit;
+	}
 }