content: /*
   *  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.causeway.core.metamodel.facets.members.hidden;
  
  import java.util.function.BiConsumer;
  
  import org.apache.causeway.applib.annotation.Where;
  import org.apache.causeway.core.metamodel.facetapi.Facet;
  import org.apache.causeway.core.metamodel.facetapi.FacetHolder;
  import org.apache.causeway.core.metamodel.facets.WhereValueFacetAbstract;
  import org.apache.causeway.core.metamodel.facets.all.hide.HiddenFacet;
  import org.apache.causeway.core.metamodel.interactions.vis.VisibilityContext;
  import org.apache.causeway.core.metamodel.object.ManagedObject;
  
  public abstract class HiddenFacetAbstract
  extends WhereValueFacetAbstract
  implements HiddenFacet {
  
      public static final Class<HiddenFacet> type() {
          return HiddenFacet.class;
      }
  
      public HiddenFacetAbstract(
              final Where where,
              final FacetHolder holder) {
          super(type(), holder, where);
      }
  
      public HiddenFacetAbstract(
              final Where where,
              final FacetHolder holder,
              final Facet.Precedence precedence) {
          super(type(), holder, where, precedence);
      }
  
      // to instantiate contributed facets
      private HiddenFacetAbstract(final HiddenFacetAbstract toplevelFacet) {
          super(type(), toplevelFacet.getFacetHolder(), toplevelFacet.where());
      }
  
      @Override
      public String hides(final VisibilityContext ic) {
          return hiddenReason(ic.target(), ic.where());
      }
  
      /**
       * The reason why the (feature of the) target object is currently hidden, or
       * <tt>null</tt> if visible.
       */
      protected abstract String hiddenReason(ManagedObject target, Where whereContext);
  
      @Override
      public final void visitAttributes(final BiConsumer<String, Object> visitor) {
          super.visitAttributes(visitor);
          visitor.accept("semantics", getSemantics());
      }
  
  }
  