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1   /*
2    * Portions of this software was developed by employees of the National Institute
3    * of Standards and Technology (NIST), an agency of the Federal Government and is
4    * being made available as a public service. Pursuant to title 17 United States
5    * Code Section 105, works of NIST employees are not subject to copyright
6    * protection in the United States. This software may be subject to foreign
7    * copyright. Permission in the United States and in foreign countries, to the
8    * extent that NIST may hold copyright, to use, copy, modify, create derivative
9    * works, and distribute this software and its documentation without fee is hereby
10   * granted on a non-exclusive basis, provided that this notice and disclaimer
11   * of warranty appears in all copies.
12   *
13   * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
14   * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
15   * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
16   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
17   * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
18   * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
19   * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
20   * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
21   * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
22   * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
23   * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
24   * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
25   */
26  
27  package gov.nist.secauto.metaschema.core.model;
28  
29  import edu.umd.cs.findbugs.annotations.NonNull;
30  
31  /**
32   * This marker interface indicates that this object is an instance.
33   */
34  public interface IInstance extends IModelElement {
35    /**
36     * Retrieve the Metaschema definition on which the instance was declared.
37     *
38     * @return the Metaschema definition on which the instance was declared
39     */
40    @NonNull
41    IFlagContainer getContainingDefinition();
42  
43    /**
44     * Get the parent model definition that serves as the container of this
45     * instance.
46     *
47     * @return the container
48     */
49    @NonNull
50    IContainer getParentContainer();
51  
52    @Override
53    default IModule getContainingModule() {
54      return getContainingDefinition().getContainingModule();
55    }
56  
57    /**
58     * Generates a "coordinate" string for the provided information element
59     * instance.
60     *
61     * A coordinate consists of the element's:
62     * <ul>
63     * <li>containing Metaschema module's short name</li>
64     * <li>model type</li>
65     * <li>name</li>
66     * <li>hash code</li>
67     * <li>the hash code of the definition</li>
68     * </ul>
69     *
70     * @return the coordinate
71     */
72    @SuppressWarnings("null")
73    @Override
74    default String toCoordinates() {
75      IModule module = getContainingModule();
76  
77      // TODO: revisit this to add more context i.e. the containing definition
78      return String.format("%s:%s", module.getShortName(), getModelType());
79    }
80  }