/*

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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package sun.security.provider.certpath;

import java.io.IOException;

import java.security.cert.CertificateException;

import java.security.cert.X509Certificate;

import java.security.cert.CertPathValidatorException;

/**

 * A specification of a PKIX validation state

 * which is initialized by each build and updated each time a

 * certificate is added to the current path.

 *

 * @since       1.4

 * @author      Sean Mullan

 * @author      Yassir Elley

 */

interface State extends Cloneable {

    /**

     * Update the state with the next certificate added to the path.

     *

     * @param cert the certificate which is used to update the state

     */

    public void updateState(X509Certificate cert)

        throws CertificateException, IOException, CertPathValidatorException;

    /**

     * Creates and returns a copy of this object

     */

    public Object clone();

    /**

     * Returns a boolean flag indicating if the state is initial

     * (just starting)

     *

     * @return boolean flag indicating if the state is initial (just starting)

     */

    public boolean isInitial();

    /**

     * Returns a boolean flag indicating if a key lacking necessary key

     * algorithm parameters has been encountered.

     *

     * @return boolean flag indicating if key lacking parameters encountered.

     */

    public boolean keyParamsNeeded();

}