/**
* Copyright (c) Istituto Nazionale di Fisica Nucleare (INFN). 2006-2016
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.glite.security.voms.admin.persistence.dao.lookup;
/**
*
* A strategy to resolve an entity based on certificate subject and issuer
*
*/
public interface LookupStrategy {
/**
* A strategy to lookup an entity by certificate, delegating the actual lookup
* to the {@link FindByCertificateDAO} passed as argument.
*
* The strategy is basically a selector for which method to call on {@link
* FindByCertificateDAO} to resolve the entity.
*
* @param dao the dao used to resolve the entity by certificate lookup
*
* @param certificateSubject a certificate subject
*
* @param certificateIssuer a certificate issuer
*
* @return the entity linked to the certificate subject passed as argument,
* <code>null</code> if no entity is found
*/
public <T> T lookup(FindByCertificateDAO<T> dao, String certificateSubject,
String certificateIssuer);
}