Java in a Nutshell, 5th Edition [Electronic resources]

This interface defines various constants used by the Java object-serialization mechanism. Two important constants are PROTOCOL_VERSION_1 and PROTOCOL_VERSION_2, which specify the version of the serialization protocol to use. In Java 1.2, you can pass either of these values to the useProtocolVersion( ) method of an ObjectOutputStream. By default, Java 1.2 uses Version 2 of the protocol, and Java 1.1 uses Version 1 when serializing objects. Java 1.2 can deserialize objects written using either version of the protocol, as can Java 1.1.7 and later. If you want to serialize an object so that it can be read by versions of Java prior to Java 1.1.7, use PROTOCOL_VERSION_1.

The other constants defined by this interface are low-level values used by the serialization protocol. You do not need to use them unless you are reimplementing the serialization mechanism yourself.

public interface 
ObjectStreamConstants  {
// Public Constants
public static final int 
baseWireHandle ;                             =8257536
public static final int 
PROTOCOL_VERSION_1 ;                         =1
public static final int 
PROTOCOL_VERSION_2 ;                         =2
public static final byte 
SC_BLOCK_DATA ;                             =8
5.0   public static final byte 
SC_ENUM ; =16
public static final byte 
SC_EXTERNALIZABLE ;                         =4
public static final byte 
SC_SERIALIZABLE ;                           =2
public static final byte 
SC_WRITE_METHOD ;                           =1
public static final short 
STREAM_MAGIC ;                             =-21267
public static final short 
STREAM_VERSION ;                           =5
public static final SerializablePermission 
SUBCLASS_IMPLEMENTATION_PERMISSION ;  
public static final SerializablePermission 
SUBSTITUTION_PERMISSION ;  
public static final byte 
TC_ARRAY ;    =117
public static final byte 
TC_BASE ;     =112
public static final byte 
TC_BLOCKDATA ;                              =119
public static final byte 
TC_BLOCKDATALONG ;                          =122
public static final byte 
TC_CLASS ;    =118
public static final byte 
TC_CLASSDESC ;                              =114
public static final byte 
TC_ENDBLOCKDATA ;                           =120
5.0   public static final byte 
TC_ENUM ; =126
public static final byte 
TC_EXCEPTION ;                              =123
1.3   public static final byte 
TC_LONGSTRING ;                         =124
public static final byte 
TC_MAX ;      =126
public static final byte 
TC_NULL ;     =112
public static final byte 
TC_OBJECT ;   =115
1.3   public static final byte 
TC_PROXYCLASSDESC ;                     =125
public static final byte 
TC_REFERENCE ;                              =113
public static final byte 
TC_RESET ;    =121
public static final byte 
TC_STRING ;   =116
}

Implementations

ObjectInputStream, ObjectOutputStream