Package org.apache.cassandra.db

Class Digest

java.lang.Object

org.apache.cassandra.db.Digest

public class Digest
extends java.lang.Object

Method Summary

Modifier and Type	Method	Description
byte[]	digest()
static Digest	forReadResponse()
static Digest	forRepairedDataTracking()
static Digest	forSchema()
static Digest	forValidator()
long	inputBytes()
Digest	update(byte[] input, int offset, int len)
Digest	update(java.nio.ByteBuffer input)	Update the digest with the bytes from the supplied buffer.
Digest	update(java.nio.ByteBuffer input, int pos, int len)	Update the digest with the bytes sliced from the supplied buffer.
<V> Digest	update(V input, ValueAccessor<V> accessor)
Digest	updateWithBoolean(boolean val)
Digest	updateWithByte(int val)
<V> Digest	updateWithCounterContext(V context, ValueAccessor<V> accessor)	Update the digest with the content of a counter context.
Digest	updateWithInt(int val)
Digest	updateWithLong(long val)

Methods inherited from class java.lang.Object

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

Method Detail

forReadResponse

public static Digest forReadResponse()

forSchema

public static Digest forSchema()

forValidator

public static Digest forValidator()

forRepairedDataTracking

public static Digest forRepairedDataTracking()

update

public Digest update(byte[] input,
                     int offset,
                     int len)

update

public <V> Digest update(V input,
                         ValueAccessor<V> accessor)

update

public Digest update(java.nio.ByteBuffer input)

Update the digest with the bytes from the supplied buffer. This does not modify the position of the supplied buffer, so callers are not required to duplicate() the source buffer before calling

update

public Digest update(java.nio.ByteBuffer input,
                     int pos,
                     int len)

Update the digest with the bytes sliced from the supplied buffer. This does not modify the position of the supplied buffer, so callers are not required to duplicate() the source buffer before calling

updateWithCounterContext

public <V> Digest updateWithCounterContext(V context,
                                           ValueAccessor<V> accessor)

Update the digest with the content of a counter context. Note that this skips the header entirely since the header information has local meaning only, while digests are meant for comparison across nodes. This means in particular that we always have: updateDigest(ctx) == updateDigest(clearAllLocal(ctx))

updateWithByte

public Digest updateWithByte(int val)

updateWithInt

public Digest updateWithInt(int val)

updateWithLong

public Digest updateWithLong(long val)

updateWithBoolean

public Digest updateWithBoolean(boolean val)

digest

public byte[] digest()

inputBytes

public long inputBytes()