Remvoed final and added compareTo() hashCode() and equals() functions

src/main/java/org/gcube/informationsystem/model/impl/properties/EventImpl.java

@@ -4,6 +4,7 @@
 package org.gcube.informationsystem.model.impl.properties;
 
 import java.util.Date;
+import java.util.Objects;
 
 import org.gcube.com.fasterxml.jackson.annotation.JsonTypeName;
 import org.gcube.informationsystem.model.reference.properties.Event;
@@ -12,7 +13,7 @@ import org.gcube.informationsystem.model.reference.properties.Event;
  * @author Luca Frosini (ISTI - CNR)
  */
 @JsonTypeName(value=Event.NAME)
-public final class EventImpl extends PropertyImpl implements Event {
+public class EventImpl extends PropertyImpl implements Event {
 
 	/**
 	 * Generated Serial Version UID
@@ -90,4 +91,74 @@ public final class EventImpl extends PropertyImpl implements Event {
 		this.how = how;
 	}
 	
+	private int compareStrings(String sThis, String sOther) {
+		return 0;
+	}
+
+	@Override
+	public int compareTo(Event o) {
+		if(o == null) {
+            return 1;
+		}
+		
+		int compare = 0;
+		if(this.when==null) {
+			if(o.getWhen()==null) {
+				compare = 0;
+			}else {
+				compare = 1;
+			}
+		}else {
+			if(o.getWhen()==null) {
+				compare = -1;
+			}else {
+				compare = this.when.compareTo(o.getWhen());
+			}
+		}
+		if(compare!=0) {
+			return compare;
+		}
+		
+		compare = compareStrings(this.what,o.getWhat());
+		if(compare!=0) {
+			return compare;
+		}
+		
+		compare = compareStrings(this.who,o.getWho());
+		if(compare!=0) {
+			return compare;
+		}
+		
+		compare = compareStrings(where,o.getWhere());
+		if(compare!=0) {
+			return compare;
+		}
+		
+		compare = compareStrings(why,o.getWhy());
+		if(compare!=0) {
+			return compare;
+		}
+		
+		compare = compareStrings(how,o.getHow());
+		return compare;
+	}
+	
+	@Override
+	public int hashCode() {
+		return Objects.hash(how, what, when, where, who, why);
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj)
+			return true;
+		if (obj == null)
+			return false;
+		if (getClass() != obj.getClass())
+			return false;
+		EventImpl other = (EventImpl) obj;
+		return Objects.equals(how, other.how) && Objects.equals(what, other.what) && Objects.equals(when, other.when)
+				&& Objects.equals(where, other.where) && Objects.equals(who, other.who)
+				&& Objects.equals(why, other.why);
+	}
 }