org.apache.cassandra.db

Class Mutation

java.lang.Object

org.apache.cassandra.db.Mutation

All Implemented Interfaces:

IMutation

public class Mutation
extends java.lang.Object
implements IMutation

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Mutation.MutationSerializer
static interface	Mutation.SimpleBuilder Interface for building mutations geared towards human.

Field Summary

Fields

Modifier and Type	Field and Description
long	createdAt
static java.lang.String	FORWARD_FROM
static java.lang.String	FORWARD_TO
static Mutation.MutationSerializer	serializer
java.util.concurrent.atomic.AtomicLong	viewLockAcquireStart

Constructor Summary

Constructors

Modifier	Constructor and Description
	Mutation(PartitionUpdate update)
	Mutation(java.lang.String keyspaceName, DecoratedKey key)
	Mutation(java.lang.String keyspaceName, DecoratedKey key, long createdAt, boolean cdcEnabled)
protected	Mutation(java.lang.String keyspaceName, DecoratedKey key, java.util.Map<java.util.UUID,PartitionUpdate> modifications)

Method Summary

Modifier and Type	Method and Description
Mutation	add(PartitionUpdate update) Adds PartitionUpdate to the local set of modifications.
void	apply()
void	apply(boolean durableWrites)
void	apply(boolean durableWrites, boolean isDroppable)
java.util.concurrent.CompletableFuture<?>	applyFuture()
void	applyUnsafe()
Mutation	copy()
MessageOut<Mutation>	createMessage()
MessageOut<Mutation>	createMessage(MessagingService.Verb verb)
PartitionUpdate	get(CFMetaData cfm)
java.util.Collection<java.util.UUID>	getColumnFamilyIds()
java.lang.String	getKeyspaceName()
PartitionUpdate	getPartitionUpdate(java.util.UUID cfId)
java.util.Collection<PartitionUpdate>	getPartitionUpdates()
long	getTimeout()
boolean	isEmpty()
DecoratedKey	key()
static Mutation	merge(java.util.List<Mutation> mutations) Creates a new mutation that merges all the provided mutations.
static Mutation.SimpleBuilder	simpleBuilder(java.lang.String keyspaceName, DecoratedKey partitionKey) Creates a new simple mutuation builder.
int	smallestGCGS()
java.lang.String	toString()
java.lang.String	toString(boolean shallow)
boolean	trackedByCDC()
Mutation	without(java.util.Set<java.util.UUID> cfIds)
Mutation	without(java.util.UUID cfId)

Methods inherited from class java.lang.Object

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

Field Detail

serializer

public static final Mutation.MutationSerializer serializer

FORWARD_TO

public static final java.lang.String FORWARD_TO

See Also:

Constant Field Values

FORWARD_FROM

public static final java.lang.String FORWARD_FROM

See Also:

Constant Field Values

createdAt

public final long createdAt

viewLockAcquireStart

public final java.util.concurrent.atomic.AtomicLong viewLockAcquireStart

Constructor Detail

Mutation

public Mutation(java.lang.String keyspaceName,
                DecoratedKey key)

Mutation

public Mutation(java.lang.String keyspaceName,
                DecoratedKey key,
                long createdAt,
                boolean cdcEnabled)

Mutation

public Mutation(PartitionUpdate update)

Mutation

protected Mutation(java.lang.String keyspaceName,
                   DecoratedKey key,
                   java.util.Map<java.util.UUID,PartitionUpdate> modifications)

Method Detail

copy

public Mutation copy()

without

public Mutation without(java.util.Set<java.util.UUID> cfIds)

without

public Mutation without(java.util.UUID cfId)

getKeyspaceName

public java.lang.String getKeyspaceName()

Specified by:

getKeyspaceName in interface IMutation

getColumnFamilyIds

public java.util.Collection<java.util.UUID> getColumnFamilyIds()

Specified by:

getColumnFamilyIds in interface IMutation

key

public DecoratedKey key()

Specified by:

key in interface IMutation

getPartitionUpdates

public java.util.Collection<PartitionUpdate> getPartitionUpdates()

Specified by:

getPartitionUpdates in interface IMutation

getPartitionUpdate

public PartitionUpdate getPartitionUpdate(java.util.UUID cfId)

add

public Mutation add(PartitionUpdate update)

Adds PartitionUpdate to the local set of modifications. Assumes no updates for the Table this PartitionUpdate impacts.

Parameters:

update - PartitionUpdate to append to Modifications list

Returns:

Mutation this mutation

Throws:

java.lang.IllegalArgumentException - If PartitionUpdate for duplicate table is passed as argument

get

public PartitionUpdate get(CFMetaData cfm)

isEmpty

public boolean isEmpty()

merge

public static Mutation merge(java.util.List<Mutation> mutations)

Creates a new mutation that merges all the provided mutations.

Parameters:

mutations - the mutations to merge together. All mutation must be on the same keyspace and partition key. There should also be at least one mutation.

Returns:

a mutation that contains all the modifications contained in mutations.

Throws:

java.lang.IllegalArgumentException - if not all the mutations are on the same keyspace and key.

applyFuture

public java.util.concurrent.CompletableFuture<?> applyFuture()

apply

public void apply(boolean durableWrites,
                  boolean isDroppable)

apply

public void apply(boolean durableWrites)

apply

public void apply()

Specified by:

apply in interface IMutation

applyUnsafe

public void applyUnsafe()

createMessage

public MessageOut<Mutation> createMessage()

createMessage

public MessageOut<Mutation> createMessage(MessagingService.Verb verb)

getTimeout

public long getTimeout()

Specified by:

getTimeout in interface IMutation

smallestGCGS

public int smallestGCGS()

trackedByCDC

public boolean trackedByCDC()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toString

public java.lang.String toString(boolean shallow)

Specified by:

toString in interface IMutation

simpleBuilder

public static Mutation.SimpleBuilder simpleBuilder(java.lang.String keyspaceName,
                                                   DecoratedKey partitionKey)

Creates a new simple mutuation builder.

Parameters:

keyspaceName - the name of the keyspace this is a mutation for.

partitionKey - the key of partition this if a mutation for.

Returns:

a newly created builder.