org.eclipse.scada.hds

Interface DataFileAccessor

All Known Implementing Classes:

DataFileAccessorImpl

public interface DataFileAccessor

Method Summary

Modifier and Type	Method and Description
void	delete() Delete the accessors file.
void	dispose()
void	forwardCorrect(double value, Date afterDate) Forward correct entries This deletes all entries which are after the specified date
Date	getEnd()
Date	getStart()
void	insertValue(double value, Date date, boolean error, boolean manual, boolean heartbeat)
boolean	visit(ValueVisitor visitor)
boolean	visitFirstValue(ValueVisitor visitor)

Method Detail

insertValue

void insertValue(double value,
                 Date date,
                 boolean error,
                 boolean manual,
                 boolean heartbeat)
          throws IOException

Throws:

IOException

visit

boolean visit(ValueVisitor visitor)
       throws Exception

Throws:

Exception

dispose

void dispose()

visitFirstValue

boolean visitFirstValue(ValueVisitor visitor)
                 throws Exception

Throws:

Exception

forwardCorrect

void forwardCorrect(double value,
                    Date afterDate)
             throws Exception

Forward correct entries
This deletes all entries which are after the specified date

Parameters:

value - the value

afterDate - the starting point, correct everything after

Throws:

Exception - if anything goes wrong

delete

void delete()

Delete the accessors file. This is implicitly a dispose operation.

getStart

Date getStart()

getEnd

Date getEnd()