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StringHolder (Java 2 Platform SE v1.4.1) - JDK 5 Documentation v1.4.1, Java 2 SDK 英文文档

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org.omg.CORBA
Class StringHolder

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

All Implemented Interfaces:

Streamable

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public final class StringHolder

extends Object

implements Streamable

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

A Holder class for a String that is used to store "out" and "inout" parameters in IDL operations. If an IDL operation signature has an IDL string as an "out" or "inout" parameter, the programmer must pass an instance of StringHolder 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 myStringHolder is an instance of StringHolder, the value stored in its value field can be accessed with myStringHolder.value.

Since:

JDK1.2

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Field Summary
String	value           The String value held by this StringHolder object.

 

Constructor Summary

StringHolder()           Constructs a new StringHolder object with its value field initialized to null.

StringHolder(String initial)           Constructs a new StringHolder object with its value field initialized to the given String.

 

Method Summary
void	_read(InputStream input)           Reads the unmarshalled data from input and assigns it to the value field of this StringHolder object.
TypeCode	_type()           Retrieves the TypeCode object that corresponds to the value held in this StringHolder object.
void	_write(OutputStream output)           Marshals the value held by this StringHolder object to the output stream output.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

value

public String value

The String value held by this StringHolder object.

Constructor Detail

StringHolder

public StringHolder()

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

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StringHolder

public StringHolder(String initial)

Constructs a new StringHolder object with its value field initialized to the given String.

Parameters:

initial - the String with which to initialize the value field of the newly-created StringHolder object

Method Detail

_read

public void _read(InputStream input)

Reads the unmarshalled data from input and assigns it to the value field of this StringHolder object.

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 the value held by this StringHolder object to the output stream output.

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()

Retrieves the TypeCode object that corresponds to the value held in this StringHolder object.

Specified by:

_type in interface Streamable

Returns:

the type code of the value held in this StringHolder 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 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.