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Sourcecode: db4.2 version File versions  Download package

synchronized void com::sleepycat::db::Db::rename ( String  file,
String  database,
String  newname,
int  flags 
) throws DbException, java.io.FileNotFoundException [inline]

The Db.rename method renames the database specified by the file and database parameters to newname . If no database is specified, the underlying file represented by file is renamed, incidentally renaming all of the databases it contained.

Applications should not rename databases that are currently in use. If an underlying file is being renamed and logging is currently enabled in the database environment, no database in the file may be open when the Db.rename method is called. In particular, some architectures do not permit renaming files with open handles. On these architectures, attempts to rename databases that are currently in use by any thread of control in the system will fail.

The Db.rename method may not be called after calling the Db.open method on any Db handle. If the Db.open method has already been called on a Db handle, close the existing handle and create a new one before calling Db.rename.

The Db handle may not be accessed again after Db.rename is called, regardless of its return.

Environment Variables

If the database was opened within a database environment, the environment variable DB_HOME may be used as the path of the database environment home.

Db.rename is affected by any database directory specified using the DbEnv.setDataDir method, or by setting the "set_data_dir" string in the environment's DB_CONFIG file.

Parameters:
database the database to be removed.
file the physical file which contains the database(s) to be removed.
flags currently unused, and must be set to 0.
newname the new name of the database or file.
Exceptions:
DbException The Db.rename method may fail and throw DbException, encapsulating one of the following non-zero errors: An attempt was made to rename the underlying file and a database in the file was currently open.
IllegalArgumentException The Db.rename method will fail and throw a IllegalArgumentException exception if Db.rename called after Db.open was called; or if an invalid flag value or parameter was specified.
FileNotFoundException If the file or directory does not exist, the Db.rename method will fail and throw a FileNotFoundException exception.

Definition at line 630 of file Db.java.

                                                                                                                                               {

        try {
            rename0(file, database, newname, flags);
        } finally {
            cleanup();
        }
    }


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