--- /dev/null
+package org.splat.dal.bo.som;
+/**
+ * Base implementation of actor relations such as Contributor, Reviewer and Approver.
+ * ActorRelation objects are attached to Documents for defining those who HAVE CONTRIBUTED to these documents,
+ * while instances of subclasses of ActorRelation are attached to Studies for setting those who CAN CONTRIBUTE to given document types.</br>
+ * </br>
+ * Depending on the actual relation object, the value of the actor relation has different meaning:
+ * <ul>
+ * <li>The description of ActorRelation objects defines the type of contributions (Contributor, Reviewer, Approver...)</li>
+ * <li>The description of instances of subclasses of ActorRelation defines the type of acting documents</li>
+ * </ul>
+ *
+ * @author Daniel Brunier-Coulin
+ * @copyright OPEN CASCADE 2012
+ */
+
+import org.splat.dal.bo.kernel.Persistent;
+import org.splat.dal.bo.kernel.Relation;
+import org.splat.dal.bo.kernel.User;
+
+
+public abstract class ActorRelation extends Relation {
+
+ private User refer;
+
+// ==============================================================================================================================
+// Constructors
+// ==============================================================================================================================
+
+// Database fetch constructor
+ protected ActorRelation () {
+ }
+// ActorRelation subclasses constructor
+ protected ActorRelation (Study from, User to) {
+// ---------------------------------------------
+ super(from);
+ this.refer = to;
+ }
+
+// ==============================================================================================================================
+// Public member functions
+// ==============================================================================================================================
+
+ @Override
+ public User getTo () {
+// --------------------
+ return refer;
+ }
+ protected void setTo (Persistent to) {
+// ------------------------------------
+ refer = (User)to;
+ }
+}
\ No newline at end of file
