Package rasj.odmg

Class RasDatabase

java.lang.Object

rasj.odmg.RasDatabase

All Implemented Interfaces:

Database

public class RasDatabase
extends Object
implements Database

This class implements the ODMG Database interface.

Author:

Peter Zoller

Field Summary

Fields inherited from interface org.odmg.Database

NOT_OPEN, OPEN_EXCLUSIVE, OPEN_READ_ONLY, OPEN_READ_WRITE

Constructor Summary

Constructors

Constructor	Description
RasDatabase(RasImplementationInterface imp)

Method Summary

Modifier and Type	Method	Description
void	bind(Object object, String name)	Not implemented yet.
void	close()	Closes an open database.
void	deletePersistent(Object object)	Not implemented yet.
Object	lookup(String name)	Not implemented yet.
void	makePersistent(Object object)	Not implemented yet.
void	open(String name, int accessMode)	Opens a database on the RasDaMan server ( which has been specified when the RasODMG bootstrap object has been initialized).
void	unbind(String name)	Not implemented yet.

Methods inherited from class java.lang.Object

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

Constructor Details

RasDatabase

public RasDatabase(RasImplementationInterface imp)

Method Details

open

public void open(String name,
 int accessMode)
          throws ODMGException

Opens a database on the RasDaMan server ( which has been specified when the RasODMG bootstrap object has been initialized).

Specified by:

open in interface Database

Parameters:

name - Name of the database

accessMode - access mode. Available options: OPEN_READ_ONLY, OPEN_READ_WRITE, OPEN_EXCLUSIVE

Throws:

ODMGException - The database could not be opened.

close

public void close()
           throws ODMGException

Closes an open database. At the moment, only one database can be open at a given time and thus no parameter "database" is necessary here.

Specified by:

close in interface Database

Throws:

ODMGException - Unable to close the database.

bind

public void bind(Object object,
 String name)
          throws ObjectNameNotUniqueException

Not implemented yet.

Specified by:

bind in interface Database

Parameters:

object - The object to be named.

name - The name to be given to the object.

Throws:

ObjectNameNotUniqueException - If an attempt is made to bind a name to an object and that name is already bound to an object.

lookup

public Object lookup(String name)
              throws ObjectNameNotFoundException

Not implemented yet.

Specified by:

lookup in interface Database

Parameters:

name - The name of an object.

Returns:

The object with that name.

Throws:

ObjectNameNotFoundException - There is no object with the specified name.

See Also:

• ObjectNameNotFoundException

unbind

public void unbind(String name)
            throws ObjectNameNotFoundException

Not implemented yet.

Specified by:

unbind in interface Database

Parameters:

name - The name of an object.

Throws:

ObjectNameNotFoundException - No object exists in the database with that name.

makePersistent

public void makePersistent(Object object)

Not implemented yet.

Specified by:

makePersistent in interface Database

Parameters:

object - The object to make persistent.

deletePersistent

public void deletePersistent(Object object)

Not implemented yet.

Specified by:

deletePersistent in interface Database

Parameters:

object - The object to delete.