W3cubDocs

/OpenJDK 8 Web

Class DynUnionHelper

public abstract class DynUnionHelper
extends Object

DynUnion objects support the manipulation of IDL unions. A union can have only two valid current positions:

  • zero, which denotes the discriminator
  • one, which denotes the active member
The component_count value for a union depends on the current discriminator: it is 2 for a union whose discriminator indicates a named member, and 1 otherwise.

Constructors

DynUnionHelper

public DynUnionHelper()

Methods

insert

public static void insert(Any a,
                          DynUnion that)

extract

public static DynUnion extract(Any a)

type

public static TypeCode type()

id

public static String id()

read

public static DynUnion read(InputStream istream)

write

public static void write(OutputStream ostream,
                         DynUnion value)

narrow

public static DynUnion narrow(Object obj)

unchecked_narrow

public static DynUnion unchecked_narrow(Object obj)

© 1993–2017, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.