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25 
26 package sun.security.provider.certpath;
27 
28 import java.io.IOException;
29 import java.security.cert.CertificateException;
30 import java.security.cert.X509Certificate;
31 import java.security.cert.CertPathValidatorException;
32 
33 /**
34  * A specification of a PKIX validation state
35  * which is initialized by each build and updated each time a
36  * certificate is added to the current path.
37  *
38  * @since       1.4
39  * @author      Sean Mullan
40  * @author      Yassir Elley
41  */
42 
43 interface State extends Cloneable {
44 
45     /**
46      * Update the state with the next certificate added to the path.
47      *
48      * @param cert the certificate which is used to update the state
49      */
updateState(X509Certificate cert)50     public void updateState(X509Certificate cert)
51         throws CertificateException, IOException, CertPathValidatorException;
52 
53     /**
54      * Creates and returns a copy of this object
55      */
clone()56     public Object clone();
57 
58     /**
59      * Returns a boolean flag indicating if the state is initial
60      * (just starting)
61      *
62      * @return boolean flag indicating if the state is initial (just starting)
63      */
isInitial()64     public boolean isInitial();
65 
66     /**
67      * Returns a boolean flag indicating if a key lacking necessary key
68      * algorithm parameters has been encountered.
69      *
70      * @return boolean flag indicating if key lacking parameters encountered.
71      */
keyParamsNeeded()72     public boolean keyParamsNeeded();
73 }
74