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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
