com.google.cloud.bigtable.data.v2.models

Class ChangeStreamMutation

java.lang.Object

com.google.cloud.bigtable.data.v2.models.ChangeStreamMutation

All Implemented Interfaces:

ChangeStreamRecord, Serializable

@InternalApi(value="Intended for use by the BigtableIO in apache/beam only.")
public abstract class ChangeStreamMutation
extends Object
implements ChangeStreamRecord, Serializable

A ChangeStreamMutation represents a list of mods(represented by List<Entry>) targeted at a single row, which is concatenated by ChangeStreamRecordMerger. It represents a logical row mutation and can be converted to the original write request(i.e. RowMutation or RowMutationEntry.

A ChangeStreamMutation can be constructed in two ways, depending on whether it's a user initiated mutation or a Garbage Collection mutation. Either way, the caller should explicitly set `token` and `estimatedLowWatermark` before build(), otherwise it'll raise an error.

Case 1) User initiated mutation.

 ChangeStreamMutation.Builder builder = ChangeStreamMutation.createUserMutation(...);
 builder.setCell(...);
 builder.deleteFamily(...);
 builder.deleteCells(...);
 ChangeStreamMutation changeStreamMutation = builder.setToken(...).setEstimatedLowWatermark().build();
 

Case 2) Garbage Collection mutation.

 ChangeStreamMutation.Builder builder = ChangeStreamMutation.createGcMutation(...);
 builder.setCell(...);
 builder.deleteFamily(...);
 builder.deleteCells(...);
 ChangeStreamMutation changeStreamMutation = builder.setToken(...).setEstimatedLowWatermark().build();
 

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ChangeStreamMutation.MutationType

Constructor Summary

Constructors

Constructor and Description
ChangeStreamMutation()

Method Summary

Modifier and Type	Method and Description
abstract long	getCommitTimestamp() Get the commit timestamp of the current mutation.
abstract com.google.common.collect.ImmutableList<Entry>	getEntries() Get the list of mods of the current mutation.
abstract long	getEstimatedLowWatermark() Get the low watermark of the current mutation.
abstract com.google.protobuf.ByteString	getRowKey() Get the row key of the current mutation.
abstract String	getSourceClusterId() Get the source cluster id of the current mutation.
abstract int	getTieBreaker() Get the tie breaker of the current mutation.
abstract String	getToken() Get the token of the current mutation, which can be used to resume the changestream.
abstract ChangeStreamMutation.MutationType	getType() Get the type of the current mutation.
RowMutation	toRowMutation(String tableId)
RowMutationEntry	toRowMutationEntry()

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangeStreamMutation

public ChangeStreamMutation()

Method Detail

getRowKey

@Nonnull
public abstract com.google.protobuf.ByteString getRowKey()

Get the row key of the current mutation.

getType

@Nonnull
public abstract ChangeStreamMutation.MutationType getType()

Get the type of the current mutation.

getSourceClusterId

@Nonnull
public abstract String getSourceClusterId()

Get the source cluster id of the current mutation.

getCommitTimestamp

public abstract long getCommitTimestamp()

Get the commit timestamp of the current mutation.

getTieBreaker

public abstract int getTieBreaker()

Get the tie breaker of the current mutation. This is used to resolve conflicts when multiple mutations are applied to different clusters at the same time.

getToken

@Nonnull
public abstract String getToken()

Get the token of the current mutation, which can be used to resume the changestream.

getEstimatedLowWatermark

public abstract long getEstimatedLowWatermark()

Get the low watermark of the current mutation.

getEntries

@Nonnull
public abstract com.google.common.collect.ImmutableList<Entry> getEntries()

Get the list of mods of the current mutation.

toRowMutation

public RowMutation toRowMutation(@Nonnull
                                 String tableId)

toRowMutationEntry

public RowMutationEntry toRowMutationEntry()