- package org.omg.DynamicAny;
-
-
- /**
- * org/omg/DynamicAny/DynUnionOperations.java .
- * Generated by the IDL-to-Java compiler (portable), version "3.2"
- * from ../../../../src/share/classes/org/omg/DynamicAny/DynamicAny.idl
- * Wednesday, September 15, 2004 10:28:49 AM GMT
- */
-
-
- /**
- * DynUnion objects support the manipulation of IDL unions.
- * A union can have only two valid current positions:
- * <UL>
- * <LI>zero, which denotes the discriminator
- * <LI>one, which denotes the active member
- * </UL>
- * 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.
- */
- public interface DynUnionOperations extends org.omg.DynamicAny.DynAnyOperations
- {
-
- /**
- * Returns the current discriminator value.
- */
- org.omg.DynamicAny.DynAny get_discriminator ();
-
- /**
- * Sets the discriminator of the DynUnion to the specified value.
- * Setting the discriminator to a value that is consistent with the currently active union member
- * does not affect the currently active member. Setting the discriminator to a value that is inconsistent
- * with the currently active member deactivates the member and activates the member that is consistent
- * with the new discriminator value (if there is a member for that value) by initializing the member
- * to its default value.
- * Setting the discriminator of a union sets the current position to 0 if the discriminator value
- * indicates a non-existent union member (has_no_active_member returns true in this case).
- * Otherwise, if the discriminator value indicates a named union member, the current position is set to 1
- * (has_no_active_member returns false and component_count returns 2 in this case).
- *
- * @exception TypeMismatch if the TypeCode of the parameter is not equivalent to the TypeCode
- * of the union's discriminator
- */
- void set_discriminator (org.omg.DynamicAny.DynAny d) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch;
-
- /**
- * Sets the discriminator to a value that is consistent with the value of the default case of a union.
- * It sets the current position to zero and causes component_count to return 2.
- *
- * @exception TypeMismatch if the union does not have an explicit default case
- */
- void set_to_default_member () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch;
-
- /**
- * Sets the discriminator to a value that does not correspond to any of the unions case labels.
- * It sets the current position to zero and causes component_count to return 1.
- *
- * @exception TypeMismatch if the union has an explicit default case or if it uses the entire range
- * of discriminator values for explicit case labels
- */
- void set_to_no_active_member () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch;
-
- /**
- * Returns true if the union has no active member, that is, the unions value consists solely
- * of its discriminator because the discriminator has a value that is not listed as an explicit case label.
- * Calling this operation on a union that has a default case returns false.
- * Calling this operation on a union that uses the entire range of discriminator values
- * for explicit case labels returns false.
- */
- boolean has_no_active_member ();
-
- /**
- * Returns the TCKind value of the discriminators TypeCode.
- */
- org.omg.CORBA.TCKind discriminator_kind ();
-
- /**
- * Returns the TCKind value of the currently active members TypeCode.
- *
- * @exception InvalidValue if the union does not have a currently active member
- */
- org.omg.CORBA.TCKind member_kind () throws org.omg.DynamicAny.DynAnyPackage.InvalidValue;
-
- /**
- * Returns the currently active member. Note that the returned reference remains valid only
- * for as long as the currently active member does not change. Using the returned reference
- * beyond the life time of the currently active member raises OBJECT_NOT_EXIST.
- *
- * @exception InvalidValue if the union has no active member
- */
- org.omg.DynamicAny.DynAny member () throws org.omg.DynamicAny.DynAnyPackage.InvalidValue;
-
- /**
- * Returns the name of the currently active member. If the unions TypeCode does not contain
- * a member name for the currently active member, the operation returns an empty string.
- *
- * @exception InvalidValue if the union has no active member
- */
- String member_name () throws org.omg.DynamicAny.DynAnyPackage.InvalidValue;
- } // interface DynUnionOperations