org.castor.jdo.util
Class JDOUtils

java.lang.Object
  org.castor.jdo.util.JDOUtils

public final class JDOUtils

extends java.lang.Object

Common static methods for Castor JDO.

Since:

0.9.9.1

Version:

$Revision: 7121 $ $Date: 2006-05-24 08:49:08 -0600 (Wed, 24 May 2006) $

Author:

Ralf Joachim, Stein M. Hugubakken

Method Summary

static void	closeConnection(java.sql.Connection conn) Closes the Connection without throwing SQLException.
static void	closeDatabase(Database db) Closes the Database without throwing exceptions.
static void	closeResultSet(java.sql.ResultSet rs) Closes the ResultSet without throwing SQLException.
static void	closeStatement(java.sql.Statement stmt) Closes the Statement without throwing SQLException.
static org.exolab.castor.mapping.ClassDescriptor	getClassDescriptor(java.lang.String db, java.lang.Class type) Return ClassDescriptor for given type in named database .

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

closeConnection

public static void closeConnection(java.sql.Connection conn)

Closes the Connection without throwing SQLException. A warning is added to the log if SQLException is thrown.

Parameters:

conn - The Connection to close

closeResultSet

public static void closeResultSet(java.sql.ResultSet rs)

Closes the ResultSet without throwing SQLException. A warning is added to the log if SQLException is thrown.

Parameters:

rs - The ResultSet to close

closeStatement

public static void closeStatement(java.sql.Statement stmt)

Closes the Statement without throwing SQLException. A warning is added to the log if SQLException is thrown.

Parameters:

stmt - The Statement to close

closeDatabase

public static void closeDatabase(Database db)

Closes the Database without throwing exceptions. An active transaction will silently rolled back. Warnings are added to the log if any exception occures.

Parameters:

db - The database to close.

getClassDescriptor

public static org.exolab.castor.mapping.ClassDescriptor getClassDescriptor(java.lang.String db,
                                                                           java.lang.Class type)
                                                                    throws org.exolab.castor.mapping.MappingException

Return ClassDescriptor for given type in named database .

Parameters:

db - The database's name.

type - The class.

Returns:

ClassDescriptor if exists, otherwise null.

Throws:

org.exolab.castor.mapping.MappingException - If database can not be instantiated.