Added BaseEntity.

navalplanner-business/src/main/java/org/navalplanner/business/common/BaseEntity.java

@@ -0,0 +1,36 @@
+package org.navalplanner.business.common;
+
+/**
+ * TODO
+ *
+ * @author Manuel Rego Casasnovas <mrego@igalia.com>
+ */
+public abstract class BaseEntity {
+
+    private Long id;
+
+    private Long version;
+
+    private boolean newObject = false;
+
+    public Long getId() {
+        return id;
+    }
+
+    public Long getVersion() {
+        if (isNewObject()) {
+            return null;
+        }
+
+        return version;
+    }
+
+    protected void setNewObject(boolean newObject) {
+        this.newObject = newObject;
+    }
+
+    protected boolean isNewObject() {
+        return newObject;
+    }
+
+}