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ilog.rules.res.persistence.trace
Interface IlrTraceDAO

All Known Implementing Classes:

IlrTraceDAOWrapper

public interface IlrTraceDAO

Interface for Decision Warehouse trace DAO. This interface defines the contract of the DAO that is injected into Rule Sessions, RES console, and SSP to write and read traces.

Trace DAOs encapsulate transaction management via the beginTransaction(), commit() and rollback() methods.

The following code example shows how to invoke transactional code:

 try {
   dao.beginTransaction();
   dao.xxx();
   dao.commit();
 } catch(IlrDAOException e) {
   ...
   dao.rollback();
   ...
 } finally {
   dao.close();
 }
 

Since:

7.0

Method Summary

void	beginTransaction() Begins a transaction.
void	close() Closes the underlying transaction.
void	commit() Commits the underlying transaction.
IlrTraceQuery	createQuery() Creates and returns an IlrTraceQuery object.
void	deleteAllTraces() Deletes all the stored traces.
void	deleteTraces(IlrTraceQuery query) Deletes the traces matching the query criteria.
IlrTraceIterator	findAllTraces() Returns an iterator on all the execution traces stored.
IlrDWTrace	findByExecutionId(String executionId) Returns the trace that matches an execution ID (UUID).
IlrTraceIterator	findTraces(IlrTraceQuery query) Returns a trace iterator that matches the query criteria.
void	rollback() Rollback the underlying transaction.
void	saveTrace(IlrDWTrace trace, IlrSessionRequest request, IlrSessionResponse response) Saves a given trace instance after ruleset execution.

Method Detail

beginTransaction

void beginTransaction()
                      throws IlrTraceDAOException

Begins a transaction.

Throws:

IlrTraceDAOException - if an error occurs.

close

void close()

Closes the underlying transaction.

commit

void commit()
            throws IlrTraceDAOException

Commits the underlying transaction.

Throws:

IlrTraceDAOException - if an error occurred while committing.

rollback

void rollback()

Rollback the underlying transaction.

saveTrace

void saveTrace(IlrDWTrace trace,
               IlrSessionRequest request,
               IlrSessionResponse response)
               throws IlrTraceDAOException

Saves a given trace instance after ruleset execution.

Throws:

IlrTraceDAOException - if an error occurred while saving the trace.

Parameters:

trace - The Decision Warehouse trace instance to save.

request - The session request used for the execution.

response - The session response returned by the execution.

findAllTraces

IlrTraceIterator findAllTraces()
                               throws IlrTraceDAOException

Returns an iterator on all the execution traces stored. The transaction must be be initiated and committed or rolled-back by the client.

Throws:

IlrTraceDAOException - if an error occurred while saving the trace.

Returns:

An iterator on the traces.

deleteAllTraces

void deleteAllTraces()
                     throws IlrTraceDAOException

Deletes all the stored traces.

Throws:

IlrTraceDAOException - if an error occurred while deleting traces.

deleteTraces

void deleteTraces(IlrTraceQuery query)
                  throws IlrTraceDAOException

Deletes the traces matching the query criteria.

Throws:

IlrTraceDAOException - if an error occurred deleting the traces.

Parameters:

query - The query.

createQuery

IlrTraceQuery createQuery()

Creates and returns an IlrTraceQuery object.

Returns:

A new query object that can be used to specify criteria.

findTraces

IlrTraceIterator findTraces(IlrTraceQuery query)
                            throws IlrTraceDAOException

Returns a trace iterator that matches the query criteria.

Throws:

IlrTraceDAOException - if an error occurred while searching for the trace.

Parameters:

query - A query that specifies the search criteria.

Returns:

An iterator on the retrieved traces.

findByExecutionId

IlrDWTrace findByExecutionId(String executionId)
                             throws IlrTraceDAOException

Returns the trace that matches an execution ID (UUID).

Throws:

IlrTraceDAOException - if an error occurred while searching for the trace.

Parameters:

executionId - The execution ID to search for.

Returns:

The trace matching executionId. If no matching trace is found, null is returned.