- /**
- * @(#)JavaSerializationComponent.java 1.2 04/06/07
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
- package com.sun.corba.se.impl.ior.iiop;
-
- import org.omg.CORBA_2_3.portable.OutputStream;
-
- import com.sun.corba.se.impl.orbutil.ORBConstants;
- import com.sun.corba.se.impl.orbutil.ORBUtility;
- import com.sun.corba.se.impl.protocol.giopmsgheaders.Message;
-
- import com.sun.corba.se.spi.orb.ORB;
- import com.sun.corba.se.spi.ior.TaggedComponentBase;
-
- /**
- * Tagged component that contains a value that indicates the Java
- * serialization version supported by the ORB.
- *
- * ORB Java serialization uses IIOP as the transport protocol, but uses
- * Java serialization mechanism and its accompanying encodings, instead
- * of IIOP CDR serialization mechanism. Java serialization is generally
- * observed to be faster than CDR.
- */
- public class JavaSerializationComponent extends TaggedComponentBase {
-
- private byte version;
-
- private static JavaSerializationComponent singleton;
-
- public static JavaSerializationComponent singleton() {
- if (singleton == null) {
- synchronized (JavaSerializationComponent.class) {
- singleton =
- new JavaSerializationComponent(Message.JAVA_ENC_VERSION);
- }
- }
- return singleton;
- }
-
- public JavaSerializationComponent(byte version) {
- this.version = version;
- }
-
- public byte javaSerializationVersion() {
- return this.version;
- }
-
- public void writeContents(OutputStream os) {
- os.write_octet(version);
- }
-
- public int getId() {
- return ORBConstants.TAG_JAVA_SERIALIZATION_ID;
- }
-
- public boolean equals(Object obj) {
- if (!(obj instanceof JavaSerializationComponent)) {
- return false;
- }
- JavaSerializationComponent other = (JavaSerializationComponent) obj;
- return this.version == other.version;
- }
-
- public int hashCode() {
- return this.version;
- }
- }