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/**
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* '$RCSfile$'
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* Purpose: A Class that implements utility methods like:
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* 1/ Reding all doctypes from db connection
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* 2/ Reading DTD or Schema file from Metacat catalog system
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* 3/ Reading Lore type Data Guide from db connection
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* Copyright: 2000 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* Authors: Jivka Bojilova
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*
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* '$Author: daigle $'
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* '$Date: 2009-08-04 14:32:58 -0700 (Tue, 04 Aug 2009) $'
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* '$Revision: 5015 $'
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat.shared;
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/**
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* A suite of utility classes for querying DB
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*
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*/
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public abstract class BaseService {
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protected String _serviceName = null;
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// package level method reporting if service is refreshable. Basically,
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// we only want ServiceService calling this.
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public abstract boolean refreshable();
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// subclass must define doRefresh. It is only called from the refresh() method.
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protected abstract void doRefresh() throws ServiceException;
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// package level method to refresh service. We only want ServiceService
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// calling this.
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public void refresh() throws ServiceException{
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if (refreshable()) {
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doRefresh();
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} else {
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throw new ServiceException("Service: " + _serviceName + " is not refreshable");
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}
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}
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public abstract void stop() throws ServiceException;
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}
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