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.metamodel.facets;
021
022import org.apache.isis.core.metamodel.facetapi.Facet;
023import org.apache.isis.core.metamodel.facetapi.FacetAbstract;
024import org.apache.isis.core.metamodel.facetapi.FacetHolder;
025
026public abstract class SingleStringValueFacetAbstract extends FacetAbstract implements SingleStringValueFacet {
027    private final String value;
028
029    public SingleStringValueFacetAbstract(final Class<? extends Facet> facetType, final FacetHolder holder, final String value) {
030        super(facetType, holder, Derivation.NOT_DERIVED);
031        this.value = value;
032    }
033
034    @Override
035    public String value() {
036        return value;
037    }
038
039    @Override
040    protected String toStringValues() {
041        if (value == null) {
042            return "null";
043        } else {
044            return "\"" + value + "\"";
045        }
046    }
047
048}