org.datamanager.persistence
Interface DataAccessObject

All Known Implementing Classes:

JispIndexDataAccessObject, SerializableDataAccessObject

public interface DataAccessObject

The DataAccessObject class defines the standard interface for access to the persistence layer.

Author:

xi rao & Jason Lynn Baumgartner

Method Summary

void	persist(Object object, File file) keep the object as a xml file in the disk
void	persist(Object object, OutputStream outputStream) keep the object as a xml file in the disk
Object	restore(File fileLocation) return the instance object which store in the xml file the client need to cast the return to the correct type.
Object	restore(InputStream inputStream) return the instance object which store in the xml file the client need to cast the return to the correct type.

Method Detail

persist

public void persist(Object object,
                    File file)

keep the object as a xml file in the disk

Parameters:

object - any object

file - name and path to keep the object as file on disk

restore

public Object restore(File fileLocation)

return the instance object which store in the xml file the client need to cast the return to the correct type.

Parameters:

fileLocation - xml file path

Returns:

an instance which restore state from the xml file

persist

public void persist(Object object,
                    OutputStream outputStream)

keep the object as a xml file in the disk

Parameters:

object - any object

outputStream - write to output stream

restore

public Object restore(InputStream inputStream)

return the instance object which store in the xml file the client need to cast the return to the correct type.

Parameters:

inputStream - read from input stream

Returns:

an instance which restore state from the xml file