Package cz.drg.pregrouper.process.fileRead

Class OnDiskCacheReader

java.lang.Object

cz.drg.pregrouper.process.fileRead.OnDiskCacheReader

All Implemented Interfaces:

AutoCloseable

public class OnDiskCacheReader
extends Object
implements AutoCloseable

Constructor Summary

Constructors

Constructor	Description
OnDiskCacheReader(Path path)

Method Summary

Modifier and Type	Method	Description
void	close()
OffsetAndLength	getFirst(long dataFileLength)
OffsetAndLength	lookup(long highKeyHalf, long lowKeyHalf, long dataFileLength)	Payload (third long) for key (a,b), or empty if absent.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

OnDiskCacheReader

public OnDiskCacheReader(Path path)
                  throws IOException

Throws:

IOException

Method Details

lookup

public OffsetAndLength lookup(long highKeyHalf,
 long lowKeyHalf,
 long dataFileLength)

Payload (third long) for key (a,b), or empty if absent.

getFirst

public OffsetAndLength getFirst(long dataFileLength)

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Throws:

IOException