File	Doc	Category	Size	Date	Package
BackingStoreRegistry.java	API Doc	Glassfish v2 API	7474	Fri May 04 22:35:26 BST 2007	com.sun.appserv.ha.spi

BackingStoreRegistry

• java.lang.Object

Fields Summary
private static BackingStoreRegistry	_instance
private Map	type2BackingStoreInfo

Constructors Summary
private BackingStoreRegistry() // Private constructor

Methods Summary
public java.util.Properties	getFactoryClassEnv(java.lang.String type) Get the registered factory for the type specified in the parameter param type the type return The BackingStoreFactory env (Properties) or null BackingStoreInfo info = type2BackingStoreInfo.get(type); return (info == null) ? null : info.props;
public java.lang.String	getFactoryClassName(java.lang.String type) Get the registered factory for the type specified in the parameter param type the type return The BackingStoreFactory class name or null BackingStoreInfo info = type2BackingStoreInfo.get(type); return (info == null) ? null : info.className;
public BackingStoreFactory	getFactoryInstance(java.lang.String type) Return an instance of BackingStoreFactory for the specified type. If a factory instance for this persistence type has not yet been instantiated then an instance is created using the public no-arg constructor. Then {@link BackingStore#initialize(String, Properties)} will be called to properly initialize the BsackingStore. param type the persistence type for which a factory is required return an instance of BackingStoreFactory for the specified type throws BackingStoreException if the store cannot be initialized properly. throws ClassNotFoundException If the BackingStore class cannot be found. throws InstantiationException If the BackingStore class cannot be instantiated. throws IllegalAccessException If the BackingStore class doen't provide a public no-arg constructor see BackingStore.initialize(String, Properties) BackingStoreFactory factory = null; BackingStoreInfo info = type2BackingStoreInfo.get(type); if (info != null) { if (info.factory == null) { synchronized (info) { Class clazz = Class.forName(info.className); info.factory = (BackingStoreFactory) clazz.newInstance(); } } factory = info.factory; } return factory;
public static com.sun.appserv.ha.spi.BackingStoreRegistry	getInstance() Return the (singleton) instance of BackingStoreRegistry return BackingStoreRegistry return _instance;
public java.util.Collection	getRegisteredTypes() Get a list of all registered store type return Collection where each entry in the collection is the type return type2BackingStoreInfo.keySet();
public synchronized void	register(java.lang.String type, java.lang.String factoryClassName, java.util.Properties props) Register a BackingStoreFactory class name and any associated Properties for the given persistence type. The properties must contain any additional configuration paramters to properly initialize and use the store. param type The persistence-type param factoryClassName The factory class name for this type. This class must extend BackingStore. param props Properties that contain additional configration paramters. throws DuplicateFactoryRegistrationException If this type is already registered. see BackingStoreFactory#createBackingStore(Class, String, Properties) if (type2BackingStoreInfo.get(type) != null) { throw new DuplicateFactoryRegistrationException( "Duplicate factory class (" + factoryClassName + ") for type: " + type); } else { type2BackingStoreInfo.put(type, new BackingStoreInfo( factoryClassName, props)); }
public boolean	remove(java.lang.String type) Unregister the factory param type the type return (type2BackingStoreInfo.remove(type) != null);