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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class ByteHolder - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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org.omg.CORBA
Class ByteHolder

java.lang.Object
  |
  +--org.omg.CORBA.ByteHolder

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public final class ByteHolder

extends Object

implements Streamable

A Holder class for a byte that is used to store "out" and "inout" parameters in IDL methods. If an IDL method signature has an IDL octet as an "out" or "inout" parameter, the programmer must pass an instance of ByteHolder as the corresponding parameter in the method invocation; for "inout" parameters, the programmer must also fill the "in" value to be sent to the server. Before the method invocation returns, the ORB will fill in the value corresponding to the "out" value returned from the server.

If myByteHolder is an instance of ByteHolder, the value stored in its value field can be accessed with myByteHolder.value.

Since:

JDK1.2

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Field Summary
byte	value           The byte value held by this ByteHolder object.

 

Constructor Summary

ByteHolder()           Constructs a new ByteHolder object with its value field initialized to 0.

ByteHolder(byte initial)           Constructs a new ByteHolder object for the given byte.

 

Method Summary
void	_read(InputStream input)           Reads from input and initalizes the value in this ByteHolder object with the unmarshalled data.
TypeCode	_type()           Returns the TypeCode corresponding to the value held in this ByteHolder object.
void	_write(OutputStream output)           Marshals to output the value in this ByteHolder object.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

value

public byte value

The byte value held by this ByteHolder object.

Constructor Detail

ByteHolder

public ByteHolder()

Constructs a new ByteHolder object with its value field initialized to 0.

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ByteHolder

public ByteHolder(byte initial)

Constructs a new ByteHolder object for the given byte.

Parameters:

initial - the byte with which to initialize the value field of the new ByteHolder object

Method Detail

_read

public void _read(InputStream input)

Reads from input and initalizes the value in this ByteHolder object with the unmarshalled data.

Specified by:

_read in interface Streamable

Parameters:

input - the InputStream containing CDR formatted data from the wire.

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_write

public void _write(OutputStream output)

Marshals to output the value in this ByteHolder object.

Specified by:

_write in interface Streamable

Parameters:

output - the OutputStream which will contain the CDR formatted data.

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_type

public TypeCode _type()

Returns the TypeCode corresponding to the value held in this ByteHolder object.

Specified by:

_type in interface Streamable

Returns:

the TypeCode of the value held in this ByteHolder object

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