bexee.dao
Interface ProcessContextDAO

All Known Implementing Classes:

JDOProcessContextDAO, MemoryProcessContextDAO

public interface ProcessContextDAO

The ProcessContextDAO abstracts the underlying data access implementation for ProcessContext objects to enable transparent access to the data source.

Version:

$Revision: 1.1 $, $Date: 2004/12/15 14:18:09 $

Author:

Patric Fornasier, Pawel Kowalski

Method Summary

void	delete(java.lang.String id) Deletes a ProcessContext given its key.
ProcessContext	find(java.lang.String key) Finds a ProcessContext given its key.
java.lang.String	insert(ProcessContext ctx) Inserts a new ProcessContext.
void	update(ProcessContext ctx) Updates an existing ProcessContext.

Method Detail

insert

public java.lang.String insert(ProcessContext ctx)
                        throws DAOException

Inserts a new ProcessContext.

Parameters:

ctx - the ProcessContext to insert

Returns:

the new id of the ProcessContext

Throws:

DAOException - to indicate that there went something wrong

find

public ProcessContext find(java.lang.String key)
                    throws DAOException

Finds a ProcessContext given its key.

Parameters:

key - the key of the ProcessContext to find

Returns:

the ProcessContext or null if no ProcessContext matches the given key

Throws:

DAOException - to indicate that there went something wrong

delete

public void delete(java.lang.String id)
            throws DAOException

Deletes a ProcessContext given its key.

Throws:

DAOException - to indicate that there went something wrong

update

public void update(ProcessContext ctx)
            throws DAOException

Updates an existing ProcessContext.

Parameters:

ctx - the ProcessContext to update

Throws:

DAOException - to indicate that there went something wrong