Package org.apache.cassandra.db.partitions

Class ImmutableBTreePartition

java.lang.Object

org.apache.cassandra.db.partitions.AbstractBTreePartition

org.apache.cassandra.db.partitions.ImmutableBTreePartition

All Implemented Interfaces:

Iterable<Row>, Partition

Direct Known Subclasses:

CachedBTreePartition, FilteredPartition

public class ImmutableBTreePartition
extends AbstractBTreePartition

Field Summary

Fields

Modifier and Type	Field	Description
protected final BTreePartitionData	holder
protected final TableMetadata	metadata

Fields inherited from class org.apache.cassandra.db.partitions.AbstractBTreePartition

partitionKey

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ImmutableBTreePartition(TableMetadata metadata, DecoratedKey partitionKey, BTreePartitionData holder)
	ImmutableBTreePartition(TableMetadata metadata, DecoratedKey partitionKey, RegularAndStaticColumns columns, Row staticRow, Object[] tree, DeletionInfo deletionInfo, EncodingStats stats)

Method Summary

Modifier and Type	Method	Description
protected boolean	canHaveShadowedData()
static ImmutableBTreePartition	create(UnfilteredRowIterator iterator)	Creates an ImmutableBTreePartition holding all the data of the provided iterator.
static ImmutableBTreePartition	create(UnfilteredRowIterator iterator, boolean ordered)	Creates an ImmutableBTreePartition holding all the data of the provided iterator.
static ImmutableBTreePartition	create(UnfilteredRowIterator iterator, int initialRowCapacity)	Creates an ImmutableBTreePartition holding all the data of the provided iterator.
static ImmutableBTreePartition	create(UnfilteredRowIterator iterator, int initialRowCapacity, boolean ordered)	Creates an ImmutableBTreePartition holding all the data of the provided iterator.
protected BTreePartitionData	holder()
TableMetadata	metadata()

Methods inherited from class org.apache.cassandra.db.partitions.AbstractBTreePartition

build, build, build, columns, deletionInfo, equals, getRow, hasRows, isEmpty, iterator, lastRow, partitionKey, partitionLevelDeletion, rowCount, staticRow, stats, toString, toString, unfilteredIterator, unfilteredIterator, unfilteredIterator, unfilteredIterator

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

holder

protected final BTreePartitionData holder

metadata

protected final TableMetadata metadata

Constructor Details

ImmutableBTreePartition

public ImmutableBTreePartition(TableMetadata metadata,
 DecoratedKey partitionKey,
 RegularAndStaticColumns columns,
 Row staticRow,
 Object[] tree,
 DeletionInfo deletionInfo,
 EncodingStats stats)

ImmutableBTreePartition

protected ImmutableBTreePartition(TableMetadata metadata,
 DecoratedKey partitionKey,
 BTreePartitionData holder)

Method Details

create

public static ImmutableBTreePartition create(UnfilteredRowIterator iterator)

Creates an ImmutableBTreePartition holding all the data of the provided iterator. Warning: Note that this method does not close the provided iterator and it is up to the caller to do so.

Parameters:

iterator - the iterator to gather in memory.

Returns:

the created partition.

create

public static ImmutableBTreePartition create(UnfilteredRowIterator iterator,
 boolean ordered)

Creates an ImmutableBTreePartition holding all the data of the provided iterator. Warning: Note that this method does not close the provided iterator and it is up to the caller to do so.

Parameters:

iterator - the iterator to gather in memory.

ordered - true if the iterator will return the rows in order, false otherwise.

Returns:

the created partition.

create

public static ImmutableBTreePartition create(UnfilteredRowIterator iterator,
 int initialRowCapacity)

Creates an ImmutableBTreePartition holding all the data of the provided iterator. Warning: Note that this method does not close the provided iterator and it is up to the caller to do so.

Parameters:

iterator - the iterator to gather in memory.

initialRowCapacity - sizing hint (in rows) to use for the created partition. It should ideally correspond or be a good estimation of the number or rows in iterator.

Returns:

the created partition.

create

public static ImmutableBTreePartition create(UnfilteredRowIterator iterator,
 int initialRowCapacity,
 boolean ordered)

Creates an ImmutableBTreePartition holding all the data of the provided iterator. Warning: Note that this method does not close the provided iterator and it is up to the caller to do so.

Parameters:

iterator - the iterator to gather in memory.

initialRowCapacity - sizing hint (in rows) to use for the created partition. It should ideally correspond or be a good estimation of the number or rows in iterator.

ordered - true if the iterator will return the rows in order, false otherwise.

Returns:

the created partition.

metadata

public TableMetadata metadata()

Specified by:

metadata in interface Partition

Specified by:

metadata in class AbstractBTreePartition

holder

protected BTreePartitionData holder()

Specified by:

holder in class AbstractBTreePartition

canHaveShadowedData

protected boolean canHaveShadowedData()

Specified by:

canHaveShadowedData in class AbstractBTreePartition