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/*
* Copyright 2003 Sun Microsystems, Inc. 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.rmi.transport;
import java.rmi.server.ObjID;
/**
* An object used as a key to the object table that maps an
* instance of this class to a Target.
*
* @author Ann Wollrath
**/
class ObjectEndpoint {
private final ObjID id;
private final Transport transport;
/**
* Constructs a new ObjectEndpoint instance with the specified id and
* transport. The specified id must be non-null, and the specified
* transport must either be non-null or the specified id must be
* equivalent to an ObjID constructed with ObjID.DGC_ID.
*
* @param id the object identifier
* @param transport the transport
* @throws NullPointerException if id is null
**/
ObjectEndpoint(ObjID id, Transport transport) {
if (id == null) {
throw new NullPointerException();
}
assert transport != null || id.equals(new ObjID(ObjID.DGC_ID));
this.id = id;
this.transport = transport;
}
/**
* Compares the specified object with this object endpoint for
* equality.
*
* This method returns true if and only if the specified object is an
* ObjectEndpoint instance with the same object identifier and
* transport as this object.
**/
public boolean equals(Object obj) {
if (obj instanceof ObjectEndpoint) {
ObjectEndpoint oe = (ObjectEndpoint) obj;
return id.equals(oe.id) && transport == oe.transport;
} else {
return false;
}
}
/**
* Returns the hash code value for this object endpoint.
*/
public int hashCode() {
return id.hashCode() ^ (transport != null ? transport.hashCode() : 0);
}
/**
* Returns a string representation for this object endpoint.
*/
public String toString() {
return id.toString();
}
}
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