ObjectStreamConstants

public interface ObjectStreamConstants
Known Indirect Subclasses

A helper interface with constants used by the serialization implementation.

Constant Summary

int PROTOCOL_VERSION_1 Stream protocol version 1.
int PROTOCOL_VERSION_2 Stream protocol version 2.
byte SC_BLOCK_DATA Bit mask for the flag field in ObjectStreamClass.
byte SC_ENUM Bit mask for the flag field in ObjectStreamClass.
byte SC_EXTERNALIZABLE Bit mask for the flag field in ObjectStreamClass.
byte SC_SERIALIZABLE Bit mask for the flag field in ObjectStreamClass.
byte SC_WRITE_METHOD Bit mask for the flag field in ObjectStreamClass.
short STREAM_MAGIC The stream header's magic number.
short STREAM_VERSION The stream header's version number.
byte TC_ARRAY Tag to mark a new array.
byte TC_BASE The minimum tag value.
byte TC_BLOCKDATA Tag to mark a block of optional data.
byte TC_BLOCKDATALONG Tag to mark a long block of data.
byte TC_CLASS Tag to mark a reference to a class.
byte TC_CLASSDESC Tag to mark a new class descriptor.
byte TC_ENDBLOCKDATA Tag to mark the end of block data blocks for an object.
byte TC_ENUM Tag to mark a new enum.
byte TC_EXCEPTION Tag to mark an exception.
byte TC_LONGSTRING Tag to mark a long string.
byte TC_MAX The maximum tag value.
byte TC_NULL Tag to mark a null object reference.
byte TC_OBJECT Tag to mark a new object.
byte TC_PROXYCLASSDESC Tag to mark a new proxy class descriptor.
byte TC_REFERENCE Tag to mark a reference to an object that has already been written to the stream.
byte TC_RESET Tag to mark a stream reset.
byte TC_STRING Tag to mark a new string.
int baseWireHandle Handle for the first object that gets serialized.

Field Summary

public static final SerializablePermission SUBCLASS_IMPLEMENTATION_PERMISSION Permission constant to enable subclassing of ObjectInputStream and ObjectOutputStream.
public static final SerializablePermission SUBSTITUTION_PERMISSION Permission constant to enable object substitution during serialization and deserialization.

Constants

public static final int PROTOCOL_VERSION_1

Stream protocol version 1.

Constant Value: 1

public static final int PROTOCOL_VERSION_2

Stream protocol version 2.

Constant Value: 2

public static final byte SC_BLOCK_DATA

Bit mask for the flag field in ObjectStreamClass. Indicates that an externalizable class is written in block data mode.

Constant Value: 8

public static final byte SC_ENUM

Bit mask for the flag field in ObjectStreamClass. Indicates that a class is an enum type.

Constant Value: 16

public static final byte SC_EXTERNALIZABLE

Bit mask for the flag field in ObjectStreamClass. Indicates that a class is externalizable.

Constant Value: 4

public static final byte SC_SERIALIZABLE

Bit mask for the flag field in ObjectStreamClass. Indicates that a class is serializable.

Constant Value: 2

public static final byte SC_WRITE_METHOD

Bit mask for the flag field in ObjectStreamClass. Indicates that a serializable class has its own writeObject method.

Constant Value: 1

public static final short STREAM_MAGIC

The stream header's magic number.

Constant Value: -21267

public static final short STREAM_VERSION

The stream header's version number.

Constant Value: 5

public static final byte TC_ARRAY

Tag to mark a new array.

Constant Value: 117

public static final byte TC_BASE

The minimum tag value.

Constant Value: 112

public static final byte TC_BLOCKDATA

Tag to mark a block of optional data. The byte following this tag indicates the size of the block.

Constant Value: 119

public static final byte TC_BLOCKDATALONG

Tag to mark a long block of data. The long following this tag indicates the size of the block.

Constant Value: 122

public static final byte TC_CLASS

Tag to mark a reference to a class.

Constant Value: 118

public static final byte TC_CLASSDESC

Tag to mark a new class descriptor.

Constant Value: 114

public static final byte TC_ENDBLOCKDATA

Tag to mark the end of block data blocks for an object.

Constant Value: 120

public static final byte TC_ENUM

Tag to mark a new enum.

Constant Value: 126

public static final byte TC_EXCEPTION

Tag to mark an exception.

Constant Value: 123

public static final byte TC_LONGSTRING

Tag to mark a long string.

Constant Value: 124

public static final byte TC_MAX

The maximum tag value.

Constant Value: 126

public static final byte TC_NULL

Tag to mark a null o