Package org.gridgain.internal.snapshots

Class RowSnapshotWriter

java.lang.Object

org.gridgain.internal.snapshots.RowSnapshotWriter

All Implemented Interfaces:

org.apache.ignite.internal.close.ManuallyCloseable

public class RowSnapshotWriter
extends Object
implements org.apache.ignite.internal.close.ManuallyCloseable

Writer of binary rows to snapshots.

Field Summary

Fields

Modifier and Type	Field	Description
static final ByteOrder	BYTE_ORDER
static final byte	TOMBSTONE_HEADER_BYTE	Byte value representing a tombstone row.
static final int	UUID_SIZE

Method Summary

Modifier and Type	Method	Description
void	close()

Methods inherited from class java.lang.Object

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

Field Details

TOMBSTONE_HEADER_BYTE

public static final byte TOMBSTONE_HEADER_BYTE

Byte value representing a tombstone row. This will be written instead of the BinaryRow header, so it cannot collide with any possible BinaryRow header.

We don't expect to see this byte mask from a partition: - 0b00000100 - PREFIX_FLAG is used for internal purposes, we don't expect to see it when scanning the partition. - 0b00001000 - EQUALITY_FLAG is used for internal purposes, we don't expect to see it when scanning the partition.

So, putting it all together, we get a super collision resistant byte mask for the tombstone header. See BinaryTupleCommon for more details.

See Also:

• Constant Field Values

BYTE_ORDER

public static final ByteOrder BYTE_ORDER

UUID_SIZE

public static final int UUID_SIZE

See Also:

• Constant Field Values

Method Details

close

public void close()
           throws Exception

Specified by:

close in interface org.apache.ignite.internal.close.ManuallyCloseable

Throws:

Exception