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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/org/omg/DynamicAny/DynUnionOperations.java | |
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Diffstat (limited to 'libjava/classpath/org/omg/DynamicAny/DynUnionOperations.java')
-rw-r--r-- | libjava/classpath/org/omg/DynamicAny/DynUnionOperations.java | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/libjava/classpath/org/omg/DynamicAny/DynUnionOperations.java b/libjava/classpath/org/omg/DynamicAny/DynUnionOperations.java new file mode 100644 index 000000000..30b891a2d --- /dev/null +++ b/libjava/classpath/org/omg/DynamicAny/DynUnionOperations.java @@ -0,0 +1,149 @@ +/* DynUnionOperations.java -- + Copyright (C) 2005 Free Software Foundation, Inc. +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package org.omg.DynamicAny; + +import org.omg.CORBA.TCKind; +import org.omg.DynamicAny.DynAnyPackage.InvalidValue; +import org.omg.DynamicAny.DynAnyPackage.TypeMismatch; + +/** + * Defines the operations, applicable to the DynUnion. The DynUnion has only two + * valid positions: + * <ul> + * <li>0 - contains the discriminator of the union. The discriminator defines, + * which of the union variants is currently active.</li> + * <li>1 - contains the currently active variant of the union content (a union + * member). </li> + * </ul> + * The size of the union is normally 2. If the discriminator value defines no + * valid variant, the union consists of discriminator only, having the size 1. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public interface DynUnionOperations + extends DynAnyOperations +{ + /** + * <p>Get the value of discriminator, defining which content variant + * (member) is active. + * </p><p> + * In the current implementation, the later changes on the returned value + * alter the state of the union via implemented internal listener. + * </p> + */ + DynAny get_discriminator(); + + /** + * <p>Set the value of discriminator, activating the member variant that is + * consistent with the discriminator value. If the current member variant + * matches the discriminator being set, it is unchanged. Otherwise, it is + * replaced by the matching member variant with fields, initialised to default + * values. The current position is set to 0 if the discriminator value does + * not match any member variant. Otherwise, the current position is set to 1, + * index of the member variant. + * </p> + * @throws TypeMismatch if the discriminator has a wrong type of this union. + */ + void set_discriminator(DynAny aDiscriminator) + throws TypeMismatch; + + /** + * Get the kind of the union descriminator. + * + * @return the TCKind value of the discriminator typecode. + */ + TCKind discriminator_kind(); + + /** + * Get the current variant of the union content. + * + * @return the current member of the union. This reference is only valid as + * long as the current member does not change. + * + * @throws InvalidValue if the union has no active member. + */ + DynAny member() + throws InvalidValue; + + /** + * Returns the kind of the currently active union member. + * + * @return the TCKind value of the union member. + * + * @throws InvalidValue if the union has no active member. + */ + TCKind member_kind() + throws InvalidValue; + + /** + * Returns the name of the currently active union member. + * + * @return the TCKind value of the union member. + * + * @throws InvalidValue if the union has no active member. + */ + String member_name() + throws InvalidValue; + + /** + * Returns true if the union has no active member. This happens if If the + * discriminator value defines no valid variant. Such union consists of + * discriminator only, having the size 1. + */ + boolean has_no_active_member(); + + /** + * Set the discriminator to default value. The current position is set to 0. + * This also sets the content variant to the default variant, and the size of + * the union becomes 2. + * + * @throws TypeMismatch if the default case is not defined for this union. + */ + void set_to_default_member() + throws TypeMismatch; + + /** + * Set the discriminator to value that does not correspond any content variant + * (any union <code>case</code> label). The current position is set to 0. + * The size of the union becomes 0. + * + * @throws TypeMismatch if the union has explicit default case. + */ + void set_to_no_active_member() + throws TypeMismatch; +} |