ObjectStreamConstants

所有已知实现类:

ObjectInputStream, ObjectOutputStream
```
public interface ObjectStreamConstants
```
Constants written into the Object Serialization Stream.

从以下版本开始:

JDK 1.1

字段概要

字段
限定符和类型	字段	说明
`static int`	`baseWireHandle`	First wire handle to be assigned.
`static int`	`PROTOCOL_VERSION_1`	A Stream Protocol Version.
`static int`	`PROTOCOL_VERSION_2`	A Stream Protocol Version.
`static byte`	`SC_BLOCK_DATA`	Bit mask for ObjectStreamClass flag.
`static byte`	`SC_ENUM`	Bit mask for ObjectStreamClass flag.
`static byte`	`SC_EXTERNALIZABLE`	Bit mask for ObjectStreamClass flag.
`static byte`	`SC_SERIALIZABLE`	Bit mask for ObjectStreamClass flag.
`static byte`	`SC_WRITE_METHOD`	Bit mask for ObjectStreamClass flag.
`static short`	`STREAM_MAGIC`	Magic number that is written to the stream header.
`static short`	`STREAM_VERSION`	Version number that is written to the stream header.
`static SerializablePermission`	`SUBCLASS_IMPLEMENTATION_PERMISSION`	Enable overriding of readObject and writeObject.
`static SerializablePermission`	`SUBSTITUTION_PERMISSION`	Enable substitution of one object for another during serialization/deserialization.
`static byte`	`TC_ARRAY`	new Array.
`static byte`	`TC_BASE`	First tag value.
`static byte`	`TC_BLOCKDATA`	Block of optional data.
`static byte`	`TC_BLOCKDATALONG`	long Block data.
`static byte`	`TC_CLASS`	Reference to Class.
`static byte`	`TC_CLASSDESC`	new Class Descriptor.
`static byte`	`TC_ENDBLOCKDATA`	End of optional block data blocks for an object.
`static byte`	`TC_ENUM`	new Enum constant.
`static byte`	`TC_EXCEPTION`	Exception during write.
`static byte`	`TC_LONGSTRING`	Long string.
`static byte`	`TC_MAX`	Last tag value.
`static byte`	`TC_NULL`	Null object reference.
`static byte`	`TC_OBJECT`	new Object.
`static byte`	`TC_PROXYCLASSDESC`	new Proxy Class Descriptor.
`static byte`	`TC_REFERENCE`	Reference to an object already written into the stream.
`static byte`	`TC_RESET`	Reset stream context.
`static byte`	`TC_STRING`	new String.

- 字段详细资料
  - 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.
    
    从以下版本开始:
    
    1.2
    
    另请参阅:
    
    ObjectOutputStream.useProtocolVersion(int), 常量字段值
  - 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.
    
    从以下版本开始:
    
    1.2
    
    另请参阅:
    
    ObjectOutputStream.useProtocolVersion(int), SC_BLOCK_DATA, 常量字段值
  - 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.
    
    从以下版本开始:
    
    1.2
    
    另请参阅:
    
    PROTOCOL_VERSION_2, 常量字段值
  - SC_ENUM
```
static final byte SC_ENUM
```
    Bit mask for ObjectStreamClass flag. Indicates class is an enum type.
    
    从以下版本开始:
    
    1.5
    
    另请参阅:
    
    常量字段值
  - SC_EXTERNALIZABLE
```
static final byte SC_EXTERNALIZABLE
```
    Bit mask for ObjectStreamClass flag. Indicates class is Externalizable.
    
    另请参阅:
    
    常量字段值
  - SC_SERIALIZABLE
```
static final byte SC_SERIALIZABLE
```
    Bit mask for ObjectStreamClass flag. Indicates class is Serializable.
    
    另请参阅:
    
    常量字段值
  - SC_WRITE_METHOD
```
static final byte SC_WRITE_METHOD
```
    Bit mask for ObjectStreamClass flag. Indicates a Serializable class defines its own writeObject method.
    
    另请参阅:
    
    常量字段值
  - STREAM_MAGIC
```
static final short STREAM_MAGIC
```
    Magic number that is written to the stream header.
    
    另请参阅:
    
    常量字段值
  - STREAM_VERSION
```
static final short STREAM_VERSION
```
    Version number that is written to the stream header.
    
    另请参阅:
    
    常量字段值
  - SUBCLASS_IMPLEMENTATION_PERMISSION
```
static final SerializablePermission SUBCLASS_IMPLEMENTATION_PERMISSION
```
    Enable overriding of readObject and writeObject.
    
    从以下版本开始:
    
    1.2
    
    另请参阅:
    
    ObjectOutputStream.writeObjectOverride(Object), ObjectInputStream.readObjectOverride()
  - SUBSTITUTION_PERMISSION
```
static final SerializablePermission SUBSTITUTION_PERMISSION
```
    Enable substitution of one object for another during serialization/deserialization.
    
    从以下版本开始:
    
    1.2
    
    另请参阅:
    
    ObjectOutputStream.enableReplaceObject(boolean), ObjectInputStream.enableResolveObject(boolean)
  - TC_ARRAY
```
static final byte TC_ARRAY
```
    new Array.
    
    另请参阅:
    
    常量字段值
  - TC_BASE
```
static final byte TC_BASE
```
    First tag value.
    
    另请参阅:
    
    常量字段值
  - TC_BLOCKDATA
```
static final byte TC_BLOCKDATA
```
    Block of optional data. Byte following tag indicates number of bytes in this block data.
    
    另请参阅:
    
    常量字段值
  - TC_BLOCKDATALONG
```
static final byte TC_BLOCKDATALONG
```
    long Block data. The long following the tag indicates the number of bytes in this block data.
    
    另请参阅:
    
    常量字段值
  - TC_CLASS
```
static final byte TC_CLASS
```
    Reference to Class.
    
    另请参阅:
    
    常量字段值
  - TC_CLASSDESC
```
static final byte TC_CLASSDESC
```
    new Class Descriptor.
    
    另请参阅:
    
    常量字段值
  - TC_ENDBLOCKDATA
```
static final byte TC_ENDBLOCKDATA
```
    End of optional block data blocks for an object.
    
    另请参阅:
    
    常量字段值
  - TC_ENUM
```
static final byte TC_ENUM
```
    new Enum constant.
    
    从以下版本开始:
    
    1.5
    
    另请参阅:
    
    常量字段值
  - TC_EXCEPTION
```
static final byte TC_EXCEPTION
```
    Exception during write.
    
    另请参阅:
    
    常量字段值
  - TC_LONGSTRING
```
static final byte TC_LONGSTRING
```
    Long string.
    
    另请参阅:
    
    常量字段值
  - TC_MAX
```
static final byte TC_MAX
```
    Last tag value.
    
    另请参阅:
    
    常量字段值
  - TC_NULL
```
static final byte TC_NULL
```
    Null object reference.
    
    另请参阅:
    
    常量字段值
  - TC_OBJECT
```
static final byte TC_OBJECT
```
    new Object.
    
    另请参阅:
    
    常量字段值
  - TC_PROXYCLASSDESC
```
static final byte TC_PROXYCLASSDESC
```
    new Proxy Class Descriptor.
    
    另请参阅:
    
    常量字段值
  - TC_REFERENCE
```
static final byte TC_REFERENCE
```
    Reference to an object already written into the stream.
    
    另请参阅:
    
    常量字段值
  - TC_RESET
```
static final byte TC_RESET
```
    Reset stream context. All handles written into stream are reset.
    
    另请参阅:
    
    常量字段值
  - TC_STRING
```
static final byte TC_STRING
```
    new String.
    
    另请参阅:
    
    常量字段值
  - baseWireHandle
```
static final int baseWireHandle
```
    First wire handle to be assigned.
    
    另请参阅:
    
    常量字段值

接口 ObjectStreamConstants

字段概要

字段详细资料

PROTOCOL_VERSION_1

PROTOCOL_VERSION_2

SC_BLOCK_DATA

SC_ENUM

SC_EXTERNALIZABLE

SC_SERIALIZABLE

SC_WRITE_METHOD

STREAM_MAGIC

STREAM_VERSION

SUBCLASS_IMPLEMENTATION_PERMISSION

SUBSTITUTION_PERMISSION

TC_ARRAY

TC_BASE

TC_BLOCKDATA

TC_BLOCKDATALONG

TC_CLASS

TC_CLASSDESC

TC_ENDBLOCKDATA

TC_ENUM

TC_EXCEPTION

TC_LONGSTRING

TC_MAX

TC_NULL

TC_OBJECT

TC_PROXYCLASSDESC

TC_REFERENCE

TC_RESET

TC_STRING

baseWireHandle