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
   *
   *    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.access.translator.ejbql;
  
  import java.util.Map;
  
  import org.apache.cayenne.ejbql.EJBQLExpression;
  import org.apache.cayenne.map.DbAttribute;
  import org.apache.cayenne.map.ObjAttribute;
  import org.apache.cayenne.map.ObjEntity;
  import org.apache.cayenne.reflect.ClassDescriptor;
  
  /**
   * @since 3.0
   */
  class EJBQLIdColumnsTranslator extends EJBQLIdentifierColumnsTranslator {
  
      private EJBQLTranslationContext context;
  
      EJBQLIdColumnsTranslator(EJBQLTranslationContext context) {
          super(context);
          this.context = context;
      }
  
      @Override
      public boolean visitIdentifier(EJBQLExpression expression) {
  
          Map<String, String> fields = null;
          if (context.isAppendingResultColumns()) {
              fields = context.nextEntityResult().getFields();
          }
  
          String idVar = expression.getText();
  
          ClassDescriptor descriptor = context.getEntityDescriptor(idVar);
          ObjEntity oe = descriptor.getEntity();
  
          for (ObjAttribute oa : oe.getPrimaryKeys()) {
              DbAttribute t = oe.getDbEntity().getAttribute(oa.getDbAttributeName());
              appendColumn(idVar, oa, t, fields, oa.getType());
          }
  
          return false;
      }
  
  }
  