Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class CRL - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
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java.security.cert
Class CRL

java.lang.Object
  |
  +--java.security.cert.CRL

Direct Known Subclasses:: X509CRL

public abstract class CRL
extends Object

This class is an abstraction of certificate revocation lists (CRLs) that have different formats but important common uses. For example, all CRLs share the functionality of listing revoked certificates, and can be queried on whether or not they list a given certificate.

Specialized CRL types can be defined by subclassing off of this abstract class.

Since:: JDK1.2
See Also:: X509CRL, CertificateFactory

Constructor Summary

protected CRL(String type)
          Creates a CRL of the specified type.

Method Summary

String getType()
          Returns the type of this CRL.

abstract boolean isRevoked(Certificate cert)
          Checks whether the given certificate is on this CRL.

abstract String toString()
          Returns a string representation of this CRL.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CRL

protected CRL(String type)

Creates a CRL of the specified type.

Parameters:: type - the standard name of the CRL type. See Appendix A in the Java Cryptography Architecture API Specification & Reference for information about standard CRL types.

Method Detail

getType

public final String getType()

Returns the type of this CRL.

Returns:: the type of this CRL.

toString

public abstract String toString()

Returns a string representation of this CRL.

Overrides:: toString in class Object

Returns:: a string representation of this CRL.

isRevoked

public abstract boolean isRevoked(Certificate cert)

Checks whether the given certificate is on this CRL.

Parameters:: cert - the certificate to check for.
Returns:: true if the given certificate is on this CRL, false otherwise.