Package Summary  Overview Summary

class:ObjectStreamConstants [NONE]
  • All Known Implementing Classes:
    ObjectInputStream, ObjectOutputStream 
    public interface ObjectStreamConstants
    Constants written into the Object Serialization Stream.
    Since:
    1.1

field:STREAM_MAGIC [NONE]

  • STREAM_MAGIC

    static final short STREAM_MAGIC
    Magic number that is written to the stream header.
    See Also:
    Constant Field Values

field:STREAM_VERSION [NONE]

  • STREAM_VERSION

    static final short STREAM_VERSION
    Version number that is written to the stream header.
    See Also:
    Constant Field Values

field:TC_BASE [NONE]

field:TC_NULL [NONE]

field:TC_REFERENCE [NONE]

  • TC_REFERENCE

    static final byte TC_REFERENCE
    Reference to an object already written into the stream.
    See Also:
    Constant Field Values

field:TC_CLASSDESC [NONE]

field:TC_OBJECT [NONE]

field:TC_STRING [NONE]

field:TC_ARRAY [NONE]

field:TC_CLASS [NONE]

field:TC_BLOCKDATA [NONE]

  • TC_BLOCKDATA

    static final byte TC_BLOCKDATA
    Block of optional data. Byte following tag indicates number of bytes in this block data.
    See Also:
    Constant Field Values

field:TC_ENDBLOCKDATA [NONE]

  • TC_ENDBLOCKDATA

    static final byte TC_ENDBLOCKDATA
    End of optional block data blocks for an object.
    See Also:
    Constant Field Values

field:TC_RESET [NONE]

  • TC_RESET

    static final byte TC_RESET
    Reset stream context. All handles written into stream are reset.
    See Also:
    Constant Field Values

field:TC_BLOCKDATALONG [NONE]

  • TC_BLOCKDATALONG

    static final byte TC_BLOCKDATALONG
    long Block data. The long following the tag indicates the number of bytes in this block data.
    See Also:
    Constant Field Values

field:TC_EXCEPTION [NONE]

field:TC_LONGSTRING [NONE]

field:TC_PROXYCLASSDESC [NONE]

  • TC_PROXYCLASSDESC

    static final byte TC_PROXYCLASSDESC
    new Proxy Class Descriptor.
    See Also:
    Constant Field Values

field:TC_ENUM [NONE]

field:TC_MAX [NONE]

field:baseWireHandle [NONE]

  • baseWireHandle

    static final int baseWireHandle
    First wire handle to be assigned.
    See Also:
    Constant Field Values

field:SC_WRITE_METHOD [NONE]

  • SC_WRITE_METHOD

    static final byte SC_WRITE_METHOD
    Bit mask for ObjectStreamClass flag. Indicates a Serializable class defines its own writeObject method.
    See Also:
    Constant Field Values

field:SC_BLOCK_DATA [NONE]

  • SC_BLOCK_DATA

    static final byte SC_BLOCK_DATA
    Bit mask for ObjectStreamClass flag. Indicates Externalizable data written in Block Data mode. Added for PROTOCOL_VERSION_2.
    Since:
    1.2
    See Also:
    PROTOCOL_VERSION_2, Constant Field Values

field:SC_SERIALIZABLE [NONE]

  • SC_SERIALIZABLE

    static final byte SC_SERIALIZABLE
    Bit mask for ObjectStreamClass flag. Indicates class is Serializable.
    See Also:
    Constant Field Values

field:SC_EXTERNALIZABLE [NONE]

  • SC_EXTERNALIZABLE

    static final byte SC_EXTERNALIZABLE
    Bit mask for ObjectStreamClass flag. Indicates class is Externalizable.
    See Also:
    Constant Field Values

field:SC_ENUM [NONE]

  • SC_ENUM

    static final byte SC_ENUM
    Bit mask for ObjectStreamClass flag. Indicates class is an enum type.
    Since:
    1.5
    See Also:
    Constant Field Values

field:SUBSTITUTION_PERMISSION [NONE]

field:SUBCLASS_IMPLEMENTATION_PERMISSION [NONE]

field:SERIAL_FILTER_PERMISSION [NONE]

field:PROTOCOL_VERSION_1 [NONE]

  • PROTOCOL_VERSION_1

    static final int PROTOCOL_VERSION_1
    A Stream Protocol Version.

    All externalizable data is written in JDK 1.1 external data format after calling this method. This version is needed to write streams containing Externalizable data that can be read by pre-JDK 1.1.6 JVMs.

    Since:
    1.2
    See Also:
    ObjectOutputStream.useProtocolVersion(int), Constant Field Values

field:PROTOCOL_VERSION_2 [NONE]

  • PROTOCOL_VERSION_2

    static final int PROTOCOL_VERSION_2
    A Stream Protocol Version.

    This protocol is written by JVM 1.2. Externalizable data is written in block data mode and is terminated with TC_ENDBLOCKDATA. Externalizable class descriptor flags has SC_BLOCK_DATA enabled. JVM 1.1.6 and greater can read this format change. Enables writing a nonSerializable class descriptor into the stream. The serialVersionUID of a nonSerializable class is set to 0L.

    Since:
    1.2
    See Also:
    ObjectOutputStream.useProtocolVersion(int), SC_BLOCK_DATA, Constant Field Values

© 2019 Oracle Corporation and/or its affiliates