org.apache.cassandra.db.partitions

Class PartitionUpdate.Builder

java.lang.Object

org.apache.cassandra.db.partitions.PartitionUpdate.Builder

Enclosing class:

PartitionUpdate

public static class PartitionUpdate.Builder
extends java.lang.Object

Builder for PartitionUpdates This class is not thread safe, but the PartitionUpdate it produces is (since it is immutable).

Constructor Summary

Constructors

Constructor and Description
Builder(PartitionUpdate base, int initialRowCapacity)
Builder(TableMetadata metadata, java.nio.ByteBuffer key, RegularAndStaticColumns columns, int initialRowCapacity)
Builder(TableMetadata metadata, DecoratedKey key, RegularAndStaticColumns columnDefinitions, int size)
Builder(TableMetadata metadata, DecoratedKey key, RegularAndStaticColumns columns, int initialRowCapacity, boolean canHaveShadowedData)

Method Summary

Modifier and Type	Method and Description
void	add(RangeTombstone range)
void	add(Row row) Adds a row to this update.
void	addPartitionDeletion(DeletionTime deletionTime)
PartitionUpdate	build()
RegularAndStaticColumns	columns()
TableMetadata	metadata()
DecoratedKey	partitionKey()
DeletionTime	partitionLevelDeletion()
java.lang.String	toString()
PartitionUpdate.Builder	updateAllTimestamp(long newTimestamp) Modify this update to set every timestamp for live data to newTimestamp and every deletion timestamp to newTimestamp - 1.

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder(TableMetadata metadata,
               DecoratedKey key,
               RegularAndStaticColumns columns,
               int initialRowCapacity,
               boolean canHaveShadowedData)

Builder

public Builder(TableMetadata metadata,
               DecoratedKey key,
               RegularAndStaticColumns columnDefinitions,
               int size)

Builder

public Builder(PartitionUpdate base,
               int initialRowCapacity)

Builder

public Builder(TableMetadata metadata,
               java.nio.ByteBuffer key,
               RegularAndStaticColumns columns,
               int initialRowCapacity)

Method Detail

add

public void add(Row row)

Adds a row to this update. There is no particular assumption made on the order of row added to a partition update. It is further allowed to add the same row (more precisely, multiple row objects for the same clustering). Note however that the columns contained in the added row must be a subset of the columns used when creating this update.

Parameters:

row - the row to add.

addPartitionDeletion

public void addPartitionDeletion(DeletionTime deletionTime)

add

public void add(RangeTombstone range)

partitionKey

public DecoratedKey partitionKey()

metadata

public TableMetadata metadata()

build

public PartitionUpdate build()

columns

public RegularAndStaticColumns columns()

partitionLevelDeletion

public DeletionTime partitionLevelDeletion()

updateAllTimestamp

public PartitionUpdate.Builder updateAllTimestamp(long newTimestamp)

Modify this update to set every timestamp for live data to newTimestamp and every deletion timestamp to newTimestamp - 1. There is no reason to use that expect on the Paxos code path, where we need ensure that anything inserted use the ballot timestamp (to respect the order of update decided by the Paxos algorithm). We use newTimestamp - 1 for deletions because tombstones always win on timestamp equality and we don't want to delete our own insertions (typically, when we overwrite a collection, we first set a complex deletion to delete the previous collection before adding new elements. If we were to set that complex deletion to the same timestamp that the new elements, it would delete those elements). And since tombstones always wins on timestamp equality, using -1 guarantees our deletion will still delete anything from a previous update.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object