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## org.omg.CORBA
Interface DynUnion

All Superinterfaces:
  DynAny, Object

public interface DynUnion
extends Object, DynAny

The `DynUnion` interface represents a `DynAny` object that is associated with an IDL union. Union values can be traversed using the operations defined in `DynAny`. The first component in the union corresponds to the discriminator; the second corresponds to the actual value of the union. Calling the method `next()` twice allows you to access both components.

Method Summary
`TCKind` | `discriminator_kind()` Returns the TCKind object associated with the discriminator of this union.
`DynAny` | `discriminator()` Returns a DynAny object reference that must be narrowed to the type of the discriminator in order to insert/get the discriminator value.
`TCKind` | `member_kind()` Returns the TCKind associated with the member of this union.
`String` | `member_name()` Allows for the inspection of the name of this union member without checking the value of the discriminator.
`void` | `member_name(String arg)` Allows for the assignment of the name of this union member.
`DynAny` | `member()` Returns a DynAny object reference that is used in order to insert/get a member of this union.
`boolean` | `set_as_default()` Determines whether the discriminator associated with this union has been assigned a valid default value.
`void` | `set_as_default(boolean arg)` Determines whether the discriminator associated with this union gets assigned a valid default value.

Methods inherited from interface org.omg.CORBA.Object
`_create_request, _create_request, _duplicate, _get_domain_managers, _get_interface_def, _get_policy, _hash, _is_a, _is_equivalent, _non_existent, _release, _request, _set_policy_override`

Methods inherited from interface org.omg.CORBA.DynAny
`assign, copy, current_component, destroy, from_any, get_any, get_boolean, get_char, get_double, get_float, get_long, get_longlong, get_octet, get_reference, get_short, get_string, get_typecode, get_ulong, get_ulonglong, get_ushort, get_val, get_wchar, get_wstring, insert_any, insert_boolean, insert_char, insert_double, insert_float, insert_long, insert_longlong, insert_octet, insert_reference, insert_short, insert_string, insert_typecode, insert_ulong, insert_ulonglong, insert_ushort, insert_val, insert_wchar, insert_wstring, next, rewind, seek, to_any, type`

Method Detail

### set_as_default

    public boolean set_as_default()

  Determines whether the discriminator associated with this union has been assigned a valid default value.

  Returns:
    `true` if the discriminator has a default value; `false` otherwise

### set_as_default

    public void set_as_default(boolean arg)

  Determines whether the discriminator associated with this union gets assigned a valid default value.

  Parameters:
    `arg` - `true` if the discriminator gets assigned a default value

### discriminator

    public DynAny discriminator()

  Returns a DynAny object reference that must be narrowed to the type of the discriminator in order to insert/get the discriminator value.

  Returns:
    a `DynAny` object reference representing the discriminator value

### discriminator_kind

    public TCKind discriminator_kind()

  Returns the TCKind object associated with the discriminator of this union.

  Returns:
    the `TCKind` object associated with the discriminator of this union

### member

    public DynAny member()

  Returns a DynAny object reference that is used in order to insert/get a member of this union.

  Returns:
    the `DynAny` object representing a member of this union

### member_name

    public String member_name()

  Allows for the inspection of the name of this union member without checking the value of the discriminator.

  Returns:
    the name of this union member

### member_name

    public void member_name(String arg)

  Allows for the assignment of the name of this union member.

  Parameters:
    `arg` - the new name of this union member

### member_kind

    public TCKind member_kind()

  Returns the TCKind associated with the member of this union.

  Returns:
    the `TCKind` object associated with the member of this union

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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.