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AnyHolder (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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org.omg.CORBA
Class AnyHolder

java.lang.Object
  org.omg.CORBA.AnyHolder

All Implemented Interfaces:

Streamable

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public final class AnyHolder
extends Object
implements Streamable

The Holder for Any. For more information on Holder files, see "Generated Files: Holder Files".

A Holder class for Any objects that is used to store "out" and "inout" parameters in IDL methods. If an IDL method signature has an IDL any as an "out" or "inout" parameter, the programmer must pass an instance of AnyHolder 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 myAnyHolder is an instance of AnyHolder, the value stored in its value field can be accessed with myAnyHolder.value.

Since:

JDK1.2

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Field Summary
Any	value           The Any value held by this AnyHolder object.

 

Constructor Summary
AnyHolder()           Constructs a new AnyHolder object with its value field initialized to null.
AnyHolder(Any initial)           Constructs a new AnyHolder object for the given Any object.

 

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

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

value

public Any value

The Any value held by this AnyHolder object.

Constructor Detail

AnyHolder

public AnyHolder()

Constructs a new AnyHolder object with its value field initialized to null.

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AnyHolder

public AnyHolder(Any initial)

Constructs a new AnyHolder object for the given Any object.

Parameters:

initial - the Any object with which to initialize the value field of the new AnyHolder object

Method Detail

_read

public void _read(InputStream input)

Reads from input and initalizes the value in the Holder 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 AnyHolder 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 object corresponding to the value held in this AnyHolder object.

Specified by:

_type in interface Streamable

Returns:

the TypeCode of the value held in this AnyHolder object

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.