org.osgi.service.blueprint.reflect.CollectionMetadata Maven / Gradle / Ivy
/*
* Copyright (c) OSGi Alliance (2008, 2010). 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;
import java.util.List;
/**
* Metadata for a collection based value. Values of the collection are defined
* by Metadata objects. This Collection Metadata can constrain the values of the
* collection to a specific type.
*
* @ThreadSafe
* @version $Id: b10f2b0ce4be21fa056fe311845ee0df726a0019 $
*/
public interface CollectionMetadata extends NonNullMetadata {
/**
* Return the type of the collection.
*
* The possible types are: array ({@code Object[]}), {@code Set},
* and {@code List}. This information is specified in the element name.
*
* @return The type of the collection. {@code Object[]} is returned to
* indicate an array.
*/
Class getCollectionClass();
/**
* Return the type specified for the values of the collection.
*
* The {@code value-type} attribute specified this information.
*
* @return The type specified for the values of the collection.
*/
String getValueType();
/**
* Return Metadata for the values of the collection.
*
* @return A List of Metadata for the values of the collection.
*/
List getValues();
}