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   *   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
   *
   *    https://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.cayenne.project;
  
  import org.apache.cayenne.configuration.DataChannelDescriptor;
  import org.apache.cayenne.configuration.DataNodeDescriptor;
  import org.apache.cayenne.map.DataMap;
  import org.apache.cayenne.map.DbAttribute;
  import org.apache.cayenne.map.DbEntity;
  import org.apache.cayenne.map.DbRelationship;
  import org.apache.cayenne.map.Embeddable;
  import org.apache.cayenne.map.EmbeddableAttribute;
  import org.apache.cayenne.map.ObjAttribute;
  import org.apache.cayenne.map.ObjEntity;
  import org.apache.cayenne.map.ObjRelationship;
  import org.apache.cayenne.map.Procedure;
  import org.apache.cayenne.map.ProcedureParameter;
  import org.apache.cayenne.map.QueryDescriptor;
  import org.apache.cayenne.project.extension.SaverDelegate;
  import org.apache.cayenne.resource.Resource;
  import org.apache.cayenne.util.XMLEncoder;
  
  import java.util.Collection;
  
  /**
   * @since 4.1
   */
  class CompoundSaverDelegate implements SaverDelegate {
  
      Collection<SaverDelegate> delegates;
  
      CompoundSaverDelegate(Collection<SaverDelegate> delegates) {
          this.delegates = delegates;
          setParentDelegate(this);
      }
  
      @Override
      public Void visitDataChannelDescriptor(DataChannelDescriptor channelDescriptor) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitDataChannelDescriptor(channelDescriptor);
          }
          return null;
      }
  
      @Override
      public Void visitDataNodeDescriptor(DataNodeDescriptor nodeDescriptor) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitDataNodeDescriptor(nodeDescriptor);
          }
          return null;
      }
  
      @Override
      public Void visitDataMap(DataMap dataMap) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitDataMap(dataMap);
          }
          return null;
      }
  
      @Override
      public Void visitObjEntity(ObjEntity entity) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitObjEntity(entity);
          }
          return null;
      }
  
      @Override
      public Void visitDbEntity(DbEntity entity) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitDbEntity(entity);
          }
          return null;
      }
  
      @Override
      public Void visitEmbeddable(Embeddable embeddable) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitEmbeddable(embeddable);
          }
          return null;
      }
  
      @Override
      public Void visitEmbeddableAttribute(EmbeddableAttribute attribute) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitEmbeddableAttribute(attribute);
          }
          return null;
      }
  
      @Override
      public Void visitObjAttribute(ObjAttribute attribute) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitObjAttribute(attribute);
          }
          return null;
      }
  
      @Override
      public Void visitDbAttribute(DbAttribute attribute) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitDbAttribute(attribute);
          }
          return null;
      }
  
      @Override
      public Void visitObjRelationship(ObjRelationship relationship) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitObjRelationship(relationship);
          }
          return null;
      }
  
      @Override
      public Void visitDbRelationship(DbRelationship relationship) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitDbRelationship(relationship);
          }
          return null;
      }
  
      @Override
      public Void visitProcedure(Procedure procedure) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitProcedure(procedure);
          }
          return null;
      }
  
      @Override
      public Void visitProcedureParameter(ProcedureParameter parameter) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitProcedureParameter(parameter);
          }
          return null;
      }
  
      @Override
      public Void visitQuery(QueryDescriptor query) {
          for(SaverDelegate delegate : delegates) {
              delegate.visitQuery(query);
          }
          return null;
      }
  
      @Override
      public void setXMLEncoder(XMLEncoder encoder) {
          for(SaverDelegate delegate : delegates) {
              delegate.setXMLEncoder(encoder);
          }
      }
  
      @Override
      public void setParentDelegate(SaverDelegate parentDelegate) {
          for(SaverDelegate delegate : delegates) {
              delegate.setParentDelegate(parentDelegate);
          }
      }
  
      @Override
      public SaverDelegate getParentDelegate() {
          return null;
      }
  
      @Override
      public Resource getBaseDirectory() {
          return null;
      }
  
      @Override
      public void setBaseDirectory(Resource baseDirectory) {
          delegates.forEach(d -> d.setBaseDirectory(baseDirectory));
      }
  }
  