/* * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * 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. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.jndi.ldap.pool; /** * Is a reference to Connections that is stored in Pool. * This is an intermediate object that is outside of the circular * reference loop of * com.sun.jndi.ldap.Connection <-> com.sun.jndi.ldap.LdapClient * <-> com.sun.jndi.ldap.pool.Connections * * Because Connection is a daemon thread, it will keep LdapClient * alive until LdapClient closes Connection. This will in turn * keep Connections alive. So even when Connections is removed * from (the WeakHashMap of) Pool, it won't be finalized. * ConnectionsRef acts as Connections's finalizer. * * Without connection pooling, com.sun.jndi.ldap.LdapCtx's finalize() * closes LdapClient, which in turn closes Connection. * With connection pooling, ConnectionsRef's finalize() calls * Connections.close(), which in turn will close all idle connections * and mark Connections such that in-use connections will be closed * when they are returned to the pool. */ final class ConnectionsRef { final private Connections conns; ConnectionsRef(Connections conns) { this.conns = conns; } Connections getConnections() { return conns; } }