001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.progmodel.facets.members.disabled;
021
022import org.apache.isis.applib.events.UsabilityEvent;
023import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
024import org.apache.isis.core.metamodel.facetapi.FacetHolder;
025import org.apache.isis.core.metamodel.interactions.UsabilityContext;
026
027public class DisableForContextFacetNone extends DisableForContextFacetAbstract {
028
029    public DisableForContextFacetNone(final FacetHolder holder) {
030        super(holder);
031    }
032
033    /**
034     * The reason this object is disabled, or <tt>null</tt> otherwise.
035     * 
036     * <p>
037     * Always returns <tt>null</tt>.
038     */
039    @Override
040    public String disables(final UsabilityContext<? extends UsabilityEvent> ic) {
041        return null;
042    }
043
044
045    @Override
046    public boolean isNoop() {
047        return true;
048    }
049
050}