Package org.apache.iotdb.confignode.writelog.io

Interface ILogReader

All Known Implementing Classes:

BatchLogReader, SingleFileLogReader

public interface ILogReader

Method Summary

Modifier and Type	Method	Description
void	close()	release resources occupied by this object, like file streams.
boolean	hasNext()	return whether there exists next log to be read.
ConfigPhysicalPlan	next()	return the next log read from media like a WAL file and covert it to a PhysicalPlan.

Method Details

close

void close()

release resources occupied by this object, like file streams.

hasNext

boolean hasNext()
         throws FileNotFoundException

return whether there exists next log to be read.

Returns:

whether there exists next log to be read.

Throws:

IOException

FileNotFoundException

next

ConfigPhysicalPlan next()
                 throws FileNotFoundException

return the next log read from media like a WAL file and covert it to a PhysicalPlan.

Returns:

the next log as a PhysicalPlan

Throws:

NoSuchElementException - when there are no more logs

FileNotFoundException