Package org.castor.jdo.engine

Class DatabaseRegistry

java.lang.Object
org.castor.jdo.engine.DatabaseRegistry
public final class DatabaseRegistry extends Object
Since:
0.9.9
Version:
$Revision: 8129 $ $Date: 2006-04-10 16:39:24 -0600 (Mon, 10 Apr 2006) $
Author:
Assaf Arkin, Bruce Snyder, Ralf Joachim

  • Method Details

    • loadDatabase

      public static void loadDatabase(String name, String engine, DataSource datasource, Mapping mapping, TransactionManager txManager) throws MappingException
      Instantiates a DataSourceConnectionFactory with given name, engine, datasource and mapping.
      Parameters:
      name - The Name of the database configuration.
      engine - The Name of the persistence factory to use.
      datasource - The preconfigured datasource to use for creating connections.
      mapping - The previously loaded mapping.
      txManager - The transaction manager to use.
      Throws:
      MappingException - If LockEngine could not be initialized.

    • loadDatabase

      public static void loadDatabase(InputSource source, EntityResolver resolver, ClassLoader loader) throws MappingException
      Instantiates a ConnectionFactory from the JDO configuration file.
      Parameters:
      source - InputSource pointing to the JDO configuration.
      resolver - An entity resolver.
      loader - A class loader
      Throws:
      MappingException - If the database cannot be instantiated/loadeed.

    • loadDatabase

      public static void loadDatabase(InputSource source, EntityResolver resolver, ClassLoader loader, JDOClassDescriptorResolver classDescriptorResolver) throws MappingException
      Instantiates a ConnectionFactory from the JDO configuration file.
      Parameters:
      source - InputSource pointing to the JDO configuration.
      resolver - An entity resolver.
      loader - A class loader
      classDescriptorResolver -
      invalid reference 
      ClassDescriptorResolver
      used for class to class descriptor resolution.
      Throws:
      MappingException - If the database cannot be instantiated/loaded.

    • loadDatabase

      public static void loadDatabase(JdoConf jdoConf, EntityResolver resolver, ClassLoader loader, String baseURI) throws MappingException
      Creates a entry for every database and associates them with their name in a map. It then instantiates all databases if 'org.exolab.castor.jdo.DatabaseInitializeAtLoad' key can not be found or is set to true in castor.properties file. If above property is set to false it will instantiate all databases only when they are needed.
      Parameters:
      jdoConf - An in-memory jdo configuration.
      resolver - An entity resolver.
      loader - A class loader
      baseURI - The base URL for the mapping
      Throws:
      MappingException - If the database cannot be instantiated/loadeed.

    • loadDatabase

      public static void loadDatabase(JdoConf jdoConf, EntityResolver resolver, ClassLoader loader, String baseURI, JDOClassDescriptorResolver classDescriptorResolver) throws MappingException
      Creates a entry for every database and associates them with their name in a map. It then instantiates all databases if 'org.exolab.castor.jdo.DatabaseInitializeAtLoad' key can not be found or is set to true in castor.properties file. If above property is set to false it will instantiate all databases only when they are needed.
      Parameters:
      jdoConf - An in-memory jdo configuration.
      resolver - An entity resolver.
      loader - A class loader
      baseURI - The base URL for the mapping
      classDescriptorResolver -
      invalid reference 
      ClassDescriptorResolver
      used for class to class descriptor resolution.
      Throws:
      MappingException - If the database cannot be instantiated/loadeed.

    • hasDatabaseRegistries

      public static boolean hasDatabaseRegistries()
      Check if any database configuration has been loaded.
      Returns:
      true if a databases configuration has been loaded.

    • isDatabaseRegistred

      public static boolean isDatabaseRegistred(String name)
      Check if database configuration with given name has been loaded.
      Parameters:
      name - Name of the database to check if loaded.
      Returns:
      true if databases configuration has been loaded.

    • getDatabaseContext

      public static DatabaseContext getDatabaseContext(String name) throws MappingException
      Get the ConnectionFactory for the given database name.
      Parameters:
      name - Name of the database configuration.
      Returns:
      The ConnectionFactory for the given database name.
      Throws:
      MappingException - If database can not be instantiated.

    • clear

      public static void clear()
      Reset all database configurations.

    • unloadDatabase

      public static void unloadDatabase(String name)
      Unload the database configuration with given name.
      Parameters:
      name - Name of the database to be unloaded.