| /* |
| * Copyright (c) OSGi Alliance (2008, 2009). All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.osgi.service.blueprint.reflect; |
| |
| /** |
| * Metadata for a value that cannot <code>null</code>. All Metadata subtypes |
| * extend this type except for {@link NullMetadata}. |
| * |
| * <p> |
| * This Metadata type is used for keys in Maps because they cannot be |
| * <code>null</code>. |
| * |
| * @ThreadSafe |
| * @version $Revision: 896324 $ |
| */ |
| public interface NonNullMetadata extends Metadata { |
| // marker interface |
| } |
