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    
015    package org.apache.hivemind.impl;
016    
017    import java.util.Iterator;
018    import 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(java.util.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     */
034    public 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    }