com.hazelcast.spi.hotrestart.impl.io

Class ChunkFilesetCursor

java.lang.Object

com.hazelcast.spi.hotrestart.impl.io.ChunkFilesetCursor

Direct Known Subclasses:

ChunkFilesetCursor.Tomb, ChunkFilesetCursor.Val

public abstract class ChunkFilesetCursor
extends Object

A cursor over all the records in a list of chunk files.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ChunkFilesetCursor.Tomb Specialization of ChunkFileSetCursor to tombstone chunks
static class	ChunkFilesetCursor.Val Specialization of ChunkFileSetCursor to value chunks

Method Summary

Modifier and Type	Method and Description
boolean	advance() Attempts to advance to the next record.
void	close()
ChunkFileRecord	currentRecord()
static boolean	isActiveChunkFile(File f)
static long	seq(File f)

Methods inherited from class java.lang.Object

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

Method Detail

seq

public static long seq(File f)

Parameters:

f - a chunk File

Returns:

seq extracted from the file's name

isActiveChunkFile

public static boolean isActiveChunkFile(File f)

Parameters:

f - a chunk File

Returns:

whether it was the active chunk file at the time of shutdown

advance

public final boolean advance()
                      throws InterruptedException

Attempts to advance to the next record.

Returns:

true if there was a next record to advance to

Throws:

InterruptedException - if the current thread was interrupted

currentRecord

public final ChunkFileRecord currentRecord()

Returns:

the record at which the cursor is currently positioned. May return the cursor object itself, therefore the returned object becomes invalid as soon as advance() is called.

close

public final void close()