Package org.apache.cassandra.db.partitions

Class AbstractBTreePartition

java.lang.Object

org.apache.cassandra.db.partitions.AbstractBTreePartition

All Implemented Interfaces:

Iterable<Row>, Partition

Direct Known Subclasses:

AtomicBTreePartition, ImmutableBTreePartition, PartitionUpdate

public abstract class AbstractBTreePartition
extends Object
implements Partition, Iterable<Row>

Field Summary

Fields

Modifier and Type	Field	Description
protected final DecoratedKey	partitionKey

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractBTreePartition(DecoratedKey partitionKey)

Method Summary

Modifier and Type	Method	Description
protected static BTreePartitionData	build(RowIterator rows, DeletionInfo deletion, boolean buildEncodingStats)
protected static BTreePartitionData	build(UnfilteredRowIterator iterator, int initialRowCapacity)
protected static BTreePartitionData	build(UnfilteredRowIterator iterator, int initialRowCapacity, boolean ordered)
protected abstract boolean	canHaveShadowedData()
RegularAndStaticColumns	columns()
DeletionInfo	deletionInfo()
boolean	equals(Object obj)
Row	getRow(Clustering<?> clustering)	Returns the row corresponding to the provided clustering, or null if there is not such row.
boolean	hasRows()	Whether the partition object has rows.
protected abstract BTreePartitionData	holder()
boolean	isEmpty()	Whether the partition object has no informations at all, including any deletion informations.
Iterator<Row>	iterator()
Row	lastRow()
abstract TableMetadata	metadata()
DecoratedKey	partitionKey()
DeletionTime	partitionLevelDeletion()
int	rowCount()
Row	staticRow()
EncodingStats	stats()
String	toString()
String	toString(boolean includeFullDetails)
UnfilteredRowIterator	unfilteredIterator()	Returns an UnfilteredRowIterator over all the rows/RT contained by this partition.
UnfilteredRowIterator	unfilteredIterator(ColumnFilter selection, NavigableSet<Clustering<?>> clusteringsInQueryOrder, boolean reversed)	Returns an UnfilteredRowIterator over the rows/RT contained by this partition selected by the provided clusterings.
UnfilteredRowIterator	unfilteredIterator(ColumnFilter selection, Slices slices, boolean reversed)	Returns an UnfilteredRowIterator over the rows/RT contained by this partition selected by the provided slices.
UnfilteredRowIterator	unfilteredIterator(BTreePartitionData current, ColumnFilter selection, Slices slices, boolean reversed)

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

partitionKey

protected final DecoratedKey partitionKey

Constructor Details

AbstractBTreePartition

protected AbstractBTreePartition(DecoratedKey partitionKey)

Method Details

holder

protected abstract BTreePartitionData holder()

canHaveShadowedData

protected abstract boolean canHaveShadowedData()

deletionInfo

public DeletionInfo deletionInfo()

staticRow

public Row staticRow()

isEmpty

public boolean isEmpty()

Description copied from interface: Partition

Whether the partition object has no informations at all, including any deletion informations.

Specified by:

isEmpty in interface Partition

hasRows

public boolean hasRows()

Description copied from interface: Partition

Whether the partition object has rows. This may be false but partition still be non-empty if it has a deletion.

Specified by:

hasRows in interface Partition

metadata

public abstract TableMetadata metadata()

Specified by:

metadata in interface Partition

partitionKey

public DecoratedKey partitionKey()

Specified by:

partitionKey in interface Partition

partitionLevelDeletion

public DeletionTime partitionLevelDeletion()

Specified by:

partitionLevelDeletion in interface Partition

columns

public RegularAndStaticColumns columns()

Specified by:

columns in interface Partition

stats

public EncodingStats stats()

Specified by:

stats in interface Partition

getRow

public Row getRow(Clustering<?> clustering)

Description copied from interface: Partition

Returns the row corresponding to the provided clustering, or null if there is not such row.

Specified by:

getRow in interface Partition

Parameters:

clustering - clustering key to search

Returns:

row corresponding to the clustering, it's either null or non-empty row.

unfilteredIterator

public UnfilteredRowIterator unfilteredIterator(ColumnFilter selection,
 NavigableSet<Clustering<?>> clusteringsInQueryOrder,
 boolean reversed)

Description copied from interface: Partition

Returns an UnfilteredRowIterator over the rows/RT contained by this partition selected by the provided clusterings.

Specified by:

unfilteredIterator in interface Partition

unfilteredIterator

public UnfilteredRowIterator unfilteredIterator()

Description copied from interface: Partition

Returns an UnfilteredRowIterator over all the rows/RT contained by this partition.

Specified by:

unfilteredIterator in interface Partition

unfilteredIterator

public UnfilteredRowIterator unfilteredIterator(ColumnFilter selection,
 Slices slices,
 boolean reversed)

Description copied from interface: Partition

Returns an UnfilteredRowIterator over the rows/RT contained by this partition selected by the provided slices.

Specified by:

unfilteredIterator in interface Partition

unfilteredIterator

public UnfilteredRowIterator unfilteredIterator(BTreePartitionData current,
 ColumnFilter selection,
 Slices slices,
 boolean reversed)

build

protected static BTreePartitionData build(UnfilteredRowIterator iterator,
 int initialRowCapacity)

build

protected static BTreePartitionData build(UnfilteredRowIterator iterator,
 int initialRowCapacity,
 boolean ordered)

build

protected static BTreePartitionData build(RowIterator rows,
 DeletionInfo deletion,
 boolean buildEncodingStats)

toString

public String toString()

Overrides:

toString in class Object

toString

public String toString(boolean includeFullDetails)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

rowCount

public int rowCount()

iterator

public Iterator<Row> iterator()

Specified by:

iterator in interface Iterable<Row>

lastRow

public Row lastRow()