/*
* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
*
* 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.springframework.security.acls.jdbc;
import org.springframework.security.acls.model.Acl;
import org.springframework.security.acls.model.NotFoundException;
import org.springframework.security.acls.model.ObjectIdentity;
import org.springframework.security.acls.model.Sid;
import java.util.List;
import java.util.Map;
/**
* Performs lookups for {@link org.springframework.security.acls.model.AclService}.
*
* @author Ben Alex
*/
public interface LookupStrategy {
// ~ Methods
// ========================================================================================================
/**
* Perform database-specific optimized lookup.
*
* @param objects the identities to lookup (required)
* @param sids the SIDs for which identities are required (may be <tt>null</tt> -
* implementations may elect not to provide SID optimisations)
*
* @return a <tt>Map</tt> where keys represent the {@link ObjectIdentity} of the
* located {@link Acl} and values are the located {@link Acl} (never <tt>null</tt>
* although some entries may be missing; this method should not throw
* {@link NotFoundException}, as a chain of {@link LookupStrategy}s may be used to
* automatically create entries if required)
*/
Map<ObjectIdentity, Acl> readAclsById(List<ObjectIdentity> objects, List<Sid> sids);
}