root / branches / dal_time_support / libraries / libFMap_dal / src / org / gvsig / fmap / dal / DALLocator.java @ 35779
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2008 IVER T.I. S.A. {{Task}}
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*/
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package org.gvsig.fmap.dal; |
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import org.gvsig.fmap.dal.resource.ResourceManager; |
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import org.gvsig.tools.locator.AbstractLocator; |
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import org.gvsig.tools.locator.Locator; |
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import org.gvsig.tools.locator.LocatorException; |
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/**
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*
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* This locator is the entry point of gvSIG's DAL, providing access to all DAL services.
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* DAL services are grouped in two managers {@link DataManager} and {@link ResourceManager}.
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*
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* This locator offers methods for registering as well as for obtaining both managers' unique instances.
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*
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* @see Locator
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*/
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public class DALLocator extends AbstractLocator { |
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private static final String LOCATOR_NAME = "DALLocator"; |
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/**
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* DataManager name used by the locator to access the instance
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*/
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public static final String DATA_MANAGER_NAME = "DataManager"; |
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private static final String DATA_MANAGER_DESCRIPTION = "DataManager of gvSIG Data Access Library"; |
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/**
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* ResourceManager name used by the locator to access the instance
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*/
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public static final String RESOURCE_MANAGER_NAME = "ResourceManager"; |
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private static final String RESOURCE_MANAGER_DESCRIPTION = "ResourceManager of gvSIG Data Access Library"; |
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/**
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* Unique instance.
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*/
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private static final DALLocator instance = new DALLocator(); |
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/**
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* Return the singleton instance.
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*
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* @return the singleton instance
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*/
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public static DALLocator getInstance() { |
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return instance;
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} |
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/**
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* Returns the Locator name.
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*
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* @return String containing the locator name.
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*/
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public String getLocatorName() { |
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return LOCATOR_NAME;
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} |
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/**
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* Return a reference to DataManager.
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*
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* @return a reference to DataManager
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* @throws LocatorException
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* if there is no access to the class or the class cannot be
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* instantiated
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* @see Locator#get(String)
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*/
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public static DataManager getDataManager() throws LocatorException { |
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return (DataManager) getInstance().get(DATA_MANAGER_NAME);
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} |
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/**
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* Registers the Class implementing the DataManager interface.
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*
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* @param clazz
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* implementing the DataManager interface
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*/
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public static void registerDataManager(Class clazz) { |
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getInstance().register(DATA_MANAGER_NAME, DATA_MANAGER_DESCRIPTION, |
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clazz); |
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} |
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/**
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* Registers a class as the default DataManager.
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*
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* @param clazz
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* implementing the DataManager interface
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*/
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public static void registerDefaultDataManager(Class clazz) { |
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getInstance().registerDefault(DATA_MANAGER_NAME, DATA_MANAGER_DESCRIPTION, |
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clazz); |
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} |
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/**
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* Return a reference to ResourceManager.
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*
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* @return a reference to ResourceManager
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* @throws LocatorException
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* if there is no access to the class or the class cannot be
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* instantiated
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* @see Locator#get(String)
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*/
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public static ResourceManager getResourceManager() throws LocatorException { |
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return (ResourceManager) getInstance().get(RESOURCE_MANAGER_NAME);
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} |
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/**
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* Registers the Class implementing the MDManager interface.
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*
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* @param clazz
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* implementing the MDManager interface
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*/
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public static void registerResourceManager(Class clazz) { |
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getInstance().register(RESOURCE_MANAGER_NAME, |
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RESOURCE_MANAGER_DESCRIPTION, clazz); |
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} |
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} |