001// Copyright 2004, 2005 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.hivemind.impl;
016
017import java.util.Iterator;
018import java.util.List;
019
020/**
021 * Startup service for the HiveMind Registry. This service is invoked as the
022 * {@link org.apache.hivemind.internal.RegistryInfrastructure#startup() last step} of the
023 * {@link org.apache.hivemind.impl.RegistryBuilder#constructRegistry(Locale) registry construction}.
024 * All contributions (java.lang.Runnable objects) to the <code>hivemind.Startup</code>
025 * configuration point are executed serially in an arbitrary order. Note that the contributions are
026 * <em>not</em> executed in separate Threads.
027 * <p>
028 * HiveMind contributes the <code>hivemind.EagerLoad</code> (see
029 * {@link org.apache.hivemind.service.impl.EagerLoader}) service to the
030 * <code>hivemind.Startup</code> configuration.
031 * 
032 * @author Howard Lewis Ship
033 */
034public class StartupImpl extends BaseLocatable implements Runnable
035{
036    private List _runnables;
037
038    public void run()
039    {
040        Iterator i = _runnables.iterator();
041        while (i.hasNext())
042        {
043            Runnable r = (Runnable) i.next();
044
045            r.run();
046        }
047    }
048
049    public void setRunnables(List list)
050    {
051        _runnables = list;
052    }
053
054}