/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
package org.apache.isis.viewer.wicket.model.models;

import java.io.Serializable;

import org.springframework.lang.Nullable;

import org.apache.isis.core.metamodel.spec.ManagedObject;
import org.apache.isis.core.metamodel.spec.feature.ObjectAction;
import org.apache.isis.core.runtime.context.IsisAppCommonContext;

import lombok.NonNull;

/**
 * Represents a standalone value.
 */
public class ValueModel extends ModelAbstract<ManagedObject> {

    private static final long serialVersionUID = 1L;

    // -- FACTORIES

    public static ValueModel of(
            final @NonNull  IsisAppCommonContext commonContext,
            final @Nullable ManagedObject valueAdapter) {

        if(valueAdapter==null) {
            return of(commonContext, (Serializable) null);
        }
        return of(commonContext, (Serializable) valueAdapter.getPojo());
    }

    public static ValueModel of(
            final @NonNull  IsisAppCommonContext commonContext,
            final @Nullable Serializable valuePojo) {
        return new ValueModel(commonContext, valuePojo);
    }

    // --

    private final Serializable valuePojo;

    private ValueModel(final IsisAppCommonContext commonContext, final Serializable valuePojo) {
        super(commonContext);
        this.valuePojo = valuePojo;
    }

    @Override
    protected ManagedObject load() {
        return getCommonContext().getObjectManager().adapt(valuePojo);
    }

    // -- HINTING SUPPORT

    private ActionModel actionModelHint;
    /**
     * The {@link ActionModel model} of the {@link ObjectAction action}
     * that generated this {@link ValueModel}.
     *
     * @see #setActionHint(ActionModel)
     */
    public ActionModel getActionModelHint() {
        return actionModelHint;
    }
    /**
     * Called by action.
     *
     * @see #getActionModelHint()
     */
    public void setActionHint(final ActionModel actionModelHint) {
        this.actionModelHint = actionModelHint;
    }

}

@@ -876,38 +876,8 @@
 s;%0A%0A
-import java.io.Serializable;%0A%0A
 impo
@@ -915,16 +915,91 @@
 lable;%0A%0A
+import org.apache.isis.core.metamodel.objectmanager.memento.ObjectMemento;%0A
 import o
@@ -1544,46 +1544,8 @@
 ) %7B%0A
-%0A        if(valueAdapter==null) %7B%0A    
     
@@ -1547,34 +1547,46 @@
 %0A        return 
-of
+new ValueModel
 (commonContext, 
@@ -1589,137 +1589,101 @@
 xt, 
-(Serializable) null);%0A   
+valueAdapter);%0A
     
- 
 %7D
+%0A
 %0A    
-    return of(commonContext, (Serializable) valueAdapter.getPojo());%0A    %7D%0A%0A    public static
+// --%0A%0A    private final ObjectMemento adapterMemento;%0A%0A    private
  Val
@@ -1681,35 +1681,32 @@
 ivate ValueModel
- of
 (%0A            fi
@@ -1705,34 +1705,24 @@
       final 
-@NonNull  
 IsisAppCommo
@@ -1777,63 +1777,51 @@
 ble 
-Serializable valuePojo) %7B%0A        return new ValueModel
+ManagedObject valueAdapter) %7B%0A        super
 (com
@@ -1834,244 +1834,92 @@
 text
-, valuePojo
 );%0A    
-%7D%0A%0A
     
-// --%0A%0A    private final Serializable valuePojo;%0A%0A    private ValueModel(final IsisAppCommonContext commonContext, final Serializable valuePojo) %7B%0A        super(commonContext);%0A        this.valuePojo = valuePojo
+adapterMemento = super.getMementoService().mementoForObject(valueAdapter)
 ;%0A  
@@ -2012,41 +2012,39 @@
 t().
-getObjectManager().adapt(valuePoj
+reconstructObject(adapterMement
 o);%0A
@@ -2588,10 +2588,13 @@
 %0A    %7D%0A%0A
+%0A%0A%0A
 %7D%0A

revert ValueModel to its former glory