01: /* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
02: *
03: * Licensed under the Apache License, Version 2.0 (the "License");
04: * you may not use this file except in compliance with the License.
05: * You may obtain a copy of the License at
06: *
07: * http://www.apache.org/licenses/LICENSE-2.0
08: *
09: * Unless required by applicable law or agreed to in writing, software
10: * distributed under the License is distributed on an "AS IS" BASIS,
11: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: * See the License for the specific language governing permissions and
13: * limitations under the License.
14: */
15: package org.acegisecurity.acls.jdbc;
16:
17: import org.acegisecurity.acls.objectidentity.ObjectIdentity;
18: import org.acegisecurity.acls.sid.Sid;
19:
20: import java.util.Map;
21:
22: /**
23: * Performs optimised lookups for {@link JdbcAclService}.
24: *
25: * @author Ben Alex
26: * @version $Id: LookupStrategy.java 1784 2007-02-24 21:00:24Z luke_t $
27: */
28: public interface LookupStrategy {
29: //~ Methods ========================================================================================================
30:
31: /**
32: * Perform database-specific optimized lookup.
33: *
34: * @param objects the identities to lookup (required)
35: * @param sids the SIDs for which identities are required (may be <code>null</code> - implementations may elect not
36: * to provide SID optimisations)
37: *
38: * @return the <code>Map</code> pursuant to the interface contract for {@link
39: * org.acegisecurity.acls.AclService#readAclsById(ObjectIdentity[], Sid[])}
40: */
41: Map readAclsById(ObjectIdentity[] objects, Sid[] sids);
42: }
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