001 /* 002 * CDDL HEADER START 003 * 004 * The contents of this file are subject to the terms of the 005 * Common Development and Distribution License, Version 1.0 only 006 * (the "License"). You may not use this file except in compliance 007 * with the License. 008 * 009 * You can obtain a copy of the license at 010 * docs/licenses/cddl.txt 011 * or http://www.opensource.org/licenses/cddl1.php. 012 * See the License for the specific language governing permissions 013 * and limitations under the License. 014 * 015 * When distributing Covered Code, include this CDDL HEADER in each 016 * file and include the License file at 017 * docs/licenses/cddl.txt. If applicable, 018 * add the following below this CDDL HEADER, with the fields enclosed 019 * by brackets "[]" replaced with your own identifying information: 020 * Portions Copyright [yyyy] [name of copyright owner] 021 * 022 * CDDL HEADER END 023 * 024 * 025 * Copyright 2010-2012 UnboundID Corp. 026 */ 027 package com.unboundid.directory.sdk.proxy.types; 028 029 030 031 import java.util.List; 032 033 import com.unboundid.directory.sdk.common.types.OperationType; 034 import com.unboundid.ldap.sdk.LDAPConnection; 035 import com.unboundid.ldap.sdk.LDAPConnectionOptions; 036 import com.unboundid.ldap.sdk.LDAPException; 037 import com.unboundid.util.NotExtensible; 038 import com.unboundid.util.ThreadSafety; 039 import com.unboundid.util.ThreadSafetyLevel; 040 041 042 043 /** 044 * This interface defines a set of methods that may be used to interact with a 045 * set of backend servers to be accessed through an entry-balancing request 046 * processor. All the servers in the set will have an identical set of data 047 * for the entry-balanced portion. 048 */ 049 @NotExtensible() 050 @ThreadSafety(level=ThreadSafetyLevel.INTERFACE_NOT_THREADSAFE) 051 public interface BackendSet 052 { 053 /** 054 * Retrieves the DN of the configuration entry for the proxying request 055 * processor that defines this backend set. 056 * 057 * @return The DN of the configuration entry for the proxying request 058 * processor that defines this backend set. 059 */ 060 String getConfigEntryDN(); 061 062 063 064 /** 065 * Retrieves the list of servers associated with this backend set. 066 * 067 * @return The list of servers associated with this backend set. 068 */ 069 List<BackendServer> getBackendServers(); 070 071 072 073 /** 074 * Retrieves a newly-established connection to one of the servers in this 075 * backend set which is capable of processing all of the specified types of 076 * operations. The caller is responsible for closing the connection when it 077 * is no longer needed. 078 * 079 * @param options The set of connection options to use for the connection. 080 * It may be {@code null} if a default set of connection 081 * options should be used. 082 * @param opTypes The types of operations expected to be processed on the 083 * connection that is created. It must not be {@code null} 084 * or empty. 085 * 086 * @return The newly-created connection to one of the servers in this backend 087 * set. 088 * 089 * @throws LDAPException If a problem occurred while attempting to create 090 * the connection, or if none of the backend servers 091 * is available for the provided set of operation 092 * types. 093 */ 094 LDAPConnection getConnection(final LDAPConnectionOptions options, 095 final OperationType... opTypes) 096 throws LDAPException; 097 }