Added supportsStore method to decide if a SettingsStorageManager can

handle save

java/com.sap.sse.gwt/src/com/sap/sse/gwt/client/shared/perspective/SettingsStorageManager.java

@@ -18,6 +18,8 @@ import com.sap.sse.common.settings.generic.GenericSerializableSettings;
  * @see ComponentContextWithSettingsStorage
  */
 public interface SettingsStorageManager<S extends Settings> {
+    
+    boolean supportsStore();
 
     /**
      * Retrieves the {@link Settings} of the root component using the provided callback.

java/com.sap.sse.security.ui/src/main/java/com/sap/sse/security/ui/settings/SimpleSettingsStorageManager.java

@@ -20,6 +20,11 @@ import com.sap.sse.gwt.settings.SettingsToUrlSerializer;
  */
 public class SimpleSettingsStorageManager<S extends Settings> implements SettingsStorageManager<S> {
     private final SettingsToUrlSerializer urlSerializer = new SettingsToUrlSerializer();
+
+    @Override
+    public boolean supportsStore() {
+        return false;
+    }
     
     /**
      * {@inheritDoc}

java/com.sap.sse.security.ui/src/main/java/com/sap/sse/security/ui/settings/UserSettingsStorageManager.java

@@ -72,6 +72,11 @@ public class UserSettingsStorageManager<S extends Settings> implements SettingsS
         this.storageGlobalKey = globalDefinitionId;
         this.storageContextSpecificKey = this.storageGlobalKey + "#" + contextDefinitionId;
     }
+    
+    @Override
+    public boolean supportsStore() {
+        return true;
+    }
 
     private void storeContextSpecificSettingsJsonOnLocalStorage(String serializedContextSpecificSettings) {
         Storage localStorage = Storage.getLocalStorageIfSupported();