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   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
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  package org.apache.cayenne.map;
  
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * A metadata object that provides mapping of a set of result columns to an Embeddable object.
   * Used by {@link SQLResult}.
   * Note that fields in the EmbeddedResult are not required to follow the order of columns
   * in the actual query, and can be added in the arbitrary order.
   *
   * @since 4.2
   */
  public class EmbeddedResult {
  
      private final Map<String, String> fields;
      private final Embeddable embeddable;
  
      public EmbeddedResult(Embeddable embeddable, int size) {
          this.embeddable = embeddable;
          this.fields = new HashMap<>((int) Math.ceil(size / 0.75));
      }
  
      public void addAttribute(ObjAttribute attr) {
          fields.put(attr.getDbAttributePath().value(), getAttributeName(attr));
      }
  
      private static String getAttributeName(ObjAttribute attr) {
          String name = attr.getName();
          return name.substring(name.lastIndexOf('.') + 1);
      }
  
      public Map<String, String> getFields() {
          return fields;
      }
  
      public Embeddable getEmbeddable() {
          return embeddable;
      }
  }
  