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25  
26  package java.security.cert;
27  
28  /**
29   * A selector that defines a set of criteria for selecting {@code CRL}s.
30   * Classes that implement this interface are often used to specify
31   * which {@code CRL}s should be retrieved from a {@code CertStore}.
32   * <p>
33   * <b>Concurrent Access</b>
34   * <p>
35   * Unless otherwise specified, the methods defined in this interface are not
36   * thread-safe. Multiple threads that need to access a single
37   * object concurrently should synchronize amongst themselves and
38   * provide the necessary locking. Multiple threads each manipulating
39   * separate objects need not synchronize.
40   *
41   * @see CRL
42   * @see CertStore
43   * @see CertStore#getCRLs
44   *
45   * @author      Steve Hanna
46   * @since       1.4
47   */
48  public interface CRLSelector extends Cloneable {
49  
50      /**
51       * Decides whether a {@code CRL} should be selected.
52       *
53       * @param   crl     the {@code CRL} to be checked
54       * @return  {@code true} if the {@code CRL} should be selected,
55       * {@code false} otherwise
56       */
57      boolean match(CRL crl);
58  
59      /**
60       * Makes a copy of this {@code CRLSelector}. Changes to the
61       * copy will not affect the original and vice versa.
62       *
63       * @return a copy of this {@code CRLSelector}
64       */
65      Object clone();
66  }