/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.jena.system;
import java.util.List ;
/**
* A {@code JenaSubsystemRegistry} is a set of objects implementing {@link JenaSubsystemLifecycle}.
*/
public interface JenaSubsystemRegistry {
/** Load - peform some kinds of search for {@link JenaSubsystemLifecycle} implementations.
* This is called once in the initialization process.
*/
public void load();
/** Add to the collection. */
public void add(JenaSubsystemLifecycle module);
/** check whether registered */
public boolean isRegistered(JenaSubsystemLifecycle module);
/** Remove from the collection. */
public void remove(JenaSubsystemLifecycle module);
public int size();
public boolean isEmpty();
/**
* Return the registered items in a copied list.
* The list is detached from the
* registry and the caller can mutate it.
* There is no specific ordering requirement.
*/
public List<JenaSubsystemLifecycle> snapshot();
}