/*
 * 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
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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.
/**
 * 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;
    }
}