Package org.exolab.jms.net.orb

Source Code of org.exolab.jms.net.orb.RegistryService

/**
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided
* that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright
*    statements and notices.  Redistributions must also contain a
*    copy of this document.
*
* 2. Redistributions in binary form must reproduce the
*    above copyright notice, this list of conditions and the
*    following disclaimer in the documentation and/or other
*    materials provided with the distribution.
*
* 3. The name "Exolab" must not be used to endorse or promote
*    products derived from this Software without prior written
*    permission of Exoffice Technologies.  For written permission,
*    please contact info@exolab.org.
*
* 4. Products derived from this Software may not be called "Exolab"
*    nor may "Exolab" appear in their names without prior written
*    permission of Exoffice Technologies. Exolab is a registered
*    trademark of Exoffice Technologies.
*
* 5. Due credit should be given to the Exolab Project
*    (http://www.exolab.org/).
*
* THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
* EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 2003-2004 (C) Exoffice Technologies Inc. All Rights Reserved.
*
* $Id: RegistryService.java,v 1.1 2004/11/26 01:51:04 tanderson Exp $
*/
package org.exolab.jms.net.orb;

import java.rmi.AlreadyBoundException;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import java.rmi.server.ObjID;

import org.exolab.jms.net.proxy.Proxy;
import org.exolab.jms.net.registry.LocalRegistry;


/**
* The <code>RegistryService</code> provides a simple interface for binding and
* retrieving remote object references by name.
*
* @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
* @version $Revision: 1.1 $ $Date: 2004/11/26 01:51:04 $
*/
class RegistryService implements LocalRegistry {

    /**
     * The registry implementation
     */
    private RegistryImpl _registry = new RegistryImpl();


    /**
     * Construct a new <code>RegistryService</code> and export the registry on
     * its well known address
     *
     * @param orb the orb
     * @throws RemoteException if the service cannot be exported
     */
    public RegistryService(ORB orb) throws RemoteException {
        if (orb == null) {
            throw new IllegalArgumentException("Argument 'orb' is null");
        }
        orb.exportObject(_registry, new ObjID(ObjID.REGISTRY_ID));
    }

    /**
     * Returns a proxy for the remote object associated with the specified name
     *
     * @param name the name the proxy is bound under
     * @return proxy the proxy for the remote object
     * @throws NotBoundException if <code>name<code> is not bound
     */
    public Proxy lookup(String name) throws NotBoundException {
        return _registry.lookup(name);
    }

    /**
     * Binds the specified name to a remote object.
     *
     * @param name  the name of the binding
     * @param proxy the proxy for the remote object
     * @throws AlreadyBoundException if <code>name</code> is already bound
     */
    public void bind(String name, Proxy proxy) throws AlreadyBoundException {
        _registry.doBind(name, proxy);
    }

    /**
     * Removes the binding for the specified name
     *
     * @param name the name of the binding
     * @throws NotBoundException if <code>name<code> is not bound
     */
    public synchronized void unbind(String name) throws NotBoundException {
        _registry.doUnbind(name);
    }

    /**
     * Set if the registry is read-only
     *
     * @param readOnly if <code>true</code>, prevent remote users from modifying
     *                 bindings
     */
    public void setReadOnly(boolean readOnly) {
        _registry.setReadOnly(readOnly);
    }

    /**
     * Determines if the registry is read-only
     *
     * @return <code>true</code> if the registry is read-only
     */
    public boolean getReadOnly() {
        return _registry.getReadOnly();
    }

}
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