package com.indexdata.mkjsf.pazpar2.commands;\r
\r
+import java.io.Serializable;\r
+\r
import com.indexdata.mkjsf.pazpar2.commands.Expression;\r
\r
-public class Expression {\r
+public class Expression implements Serializable {\r
\r
+ private static final long serialVersionUID = -751704027842027769L;\r
String leftEntity;\r
String operator;\r
String rightEntity;\r