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   *  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
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   *
   *    https://www.apache.org/licenses/LICENSE-2.0
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  package org.apache.cayenne.map;
  
  import org.apache.cayenne.configuration.ConfigurationNodeVisitor;
  import org.apache.cayenne.query.ProcedureQuery;
  import org.apache.cayenne.util.XMLEncoder;
  
  import java.util.Map;
  
  /**
   * @since 4.0
   */
  public class ProcedureQueryDescriptor extends QueryDescriptor {
  
      protected String resultEntityName;
  
      public ProcedureQueryDescriptor() {
          super(PROCEDURE_QUERY);
      }
  
      /**
       * Returns result entity name.
       */
      public String getResultEntityName() {
          return resultEntityName;
      }
  
      /**
       * Sets result entity name.
       */
      public void setResultEntityName(String resultEntityName) {
          this.resultEntityName = resultEntityName;
      }
  
      @Override
      public ProcedureQuery buildQuery() {
          ProcedureQuery procedureQuery = new ProcedureQuery();
  
          if (root != null) {
              procedureQuery.setRoot(root);
          }
  
          procedureQuery.setResultEntityName(this.getResultEntityName());
          procedureQuery.initWithProperties(this.getProperties());
  
          return procedureQuery;
      }
  
      @Override
      public void encodeAsXML(XMLEncoder encoder, ConfigurationNodeVisitor delegate) {
          encoder.start("query")
                  .attribute("name", getName())
                  .attribute("type", getType())
                  .attribute("root", QueryDescriptor.PROCEDURE_ROOT);
  
          String rootString = null;
          if (root instanceof String) {
              rootString = root.toString();
          } else if (root instanceof Procedure) {
              rootString = ((Procedure) root).getName();
          }
  
          encoder.attribute("root-name", rootString)
                  .attribute("result-entity", resultEntityName);
  
          // print properties
          encodeProperties(encoder);
  
          delegate.visitQuery(this);
          encoder.end();
      }
  }
  