public class BTreeRow extends AbstractRow
| Modifier and Type | Class and Description |
|---|---|
static class |
BTreeRow.Builder |
Row.Deletion, Row.MergerUnfiltered.Kind| Modifier and Type | Method and Description |
|---|---|
java.lang.Iterable<Cell> |
cells()
An iterable over the cells of this row.
|
java.lang.Iterable<Cell> |
cellsInLegacyOrder(CFMetaData metadata,
boolean reversed)
An iterable over the cells of this row that return cells in "legacy order".
|
Clustering |
clustering()
The clustering values for this row.
|
java.util.Collection<ColumnDefinition> |
columns()
An in-natural-order collection of the columns for which data (incl.
|
static BTreeRow |
create(Clustering clustering,
LivenessInfo primaryKeyLivenessInfo,
Row.Deletion deletion,
java.lang.Object[] btree) |
int |
dataSize() |
Row.Deletion |
deletion()
The row deletion.
|
static BTreeRow |
emptyDeletedRow(Clustering clustering,
Row.Deletion deletion) |
static BTreeRow |
emptyRow(Clustering clustering) |
Row |
filter(ColumnFilter filter,
CFMetaData metadata)
Returns a copy of this row that:
1) only includes the data for the column included by
filter. |
Row |
filter(ColumnFilter filter,
DeletionTime activeDeletion,
boolean setActiveDeletionToRow,
CFMetaData metadata)
Returns a copy of this row that:
1) only includes the data for the column included by
filter. |
Cell |
getCell(ColumnDefinition c)
Returns a cell for a simple column.
|
Cell |
getCell(ColumnDefinition c,
CellPath path)
Return a cell for a given complex column and cell path.
|
ComplexColumnData |
getComplexColumnData(ColumnDefinition c)
The data for a complex column.
|
boolean |
hasComplex()
Whether the row stores any (non-RT) data for any complex column.
|
boolean |
hasComplexDeletion()
Whether the row stores any (non-live) complex deletion for any complex column.
|
boolean |
hasDeletion(int nowInSec)
Whether the row has any deletion info (row deletion, cell tombstone, expired cell or complex deletion).
|
boolean |
isEmpty()
Whether the row has no information whatsoever.
|
java.util.Iterator<ColumnData> |
iterator() |
Row |
markCounterLocalToBeCleared()
Returns a copy of this row where all counter cells have they "local" shard marked for clearing.
|
static BTreeRow |
noCellLiveRow(Clustering clustering,
LivenessInfo primaryKeyLivenessInfo) |
LivenessInfo |
primaryKeyLivenessInfo()
Liveness information for the primary key columns of this row.
|
Row |
purge(DeletionPurger purger,
int nowInSec)
Returns a copy of this row without any deletion info that should be purged according to
purger. |
BTreeSearchIterator<ColumnDefinition,ColumnData> |
searchIterator()
An iterator to efficiently search data for a given column.
|
void |
setValue(ColumnDefinition column,
CellPath path,
java.nio.ByteBuffer value) |
static BTreeRow |
singleCellRow(Clustering clustering,
Cell cell) |
int |
size() |
static Row.Builder |
sortedBuilder() |
long |
unsharedHeapSizeExcludingData() |
static Row.Builder |
unsortedBuilder(int nowInSec) |
Row |
updateAllTimestamp(long newTimestamp)
Returns a copy of the row where all timestamps for live data have replaced by
newTimestamp and
all deletion timestamp by newTimestamp - 1. |
Row |
withRowDeletion(DeletionTime newDeletion)
Returns a copy of this row with the new deletion as row deletion if it is more recent
than the current row deletion.
|
digest, equals, hashCode, hasLiveData, isStatic, kind, toString, toString, toString, validateDataadd, addAll, clear, contains, containsAll, remove, removeAll, retainAll, toArray, toArray, toStringclone, finalize, getClass, notify, notifyAll, wait, wait, waitisRangeTombstoneMarker, isRowpublic static BTreeRow create(Clustering clustering, LivenessInfo primaryKeyLivenessInfo, Row.Deletion deletion, java.lang.Object[] btree)
public static BTreeRow emptyRow(Clustering clustering)
public static BTreeRow singleCellRow(Clustering clustering, Cell cell)
public static BTreeRow emptyDeletedRow(Clustering clustering, Row.Deletion deletion)
public static BTreeRow noCellLiveRow(Clustering clustering, LivenessInfo primaryKeyLivenessInfo)
public Clustering clustering()
Rowpublic java.util.Collection<ColumnDefinition> columns()
Rowpublic LivenessInfo primaryKeyLivenessInfo()
Row
As a row is uniquely identified by its primary key, all its primary key columns
share the same LivenessInfo. This liveness information is what allows us
to distinguish between a dead row (it has no live cells and its primary key liveness
info is empty) and a live row but where all non PK columns are null (it has no
live cells, but its primary key liveness is not empty). Please note that the liveness
info (including it's eventually ttl/local deletion time) only apply to the primary key
columns and has no impact on the row content.
Note in particular that a row may have live cells but no PK liveness info, because the
primary key liveness informations are only set on INSERT (which makes sense
in itself, see #6782) but live cells can be added through UPDATE even if the row
wasn't pre-existing (which users are encouraged not to do, but we can't validate).
public boolean isEmpty()
RowisEmpty in interface java.util.Collection<ColumnData>isEmpty in interface RowisEmpty in class java.util.AbstractCollection<ColumnData>true if the row has no data, false otherwise.public Row.Deletion deletion()
Rowpublic Cell getCell(ColumnDefinition c)
Rowc - the simple column for which to fetch the cell.null if the row has no such cell.public Cell getCell(ColumnDefinition c, CellPath path)
Rowc - the complex column for which to fetch the cell.path - the cell path for which to fetch the cell.null if the row has no such cell.public ComplexColumnData getComplexColumnData(ColumnDefinition c)
RowThe returned object groups all the cells for the column, as well as it's complex deletion (if relevant).
c - the complex column for which to return the complex data.c or null is the row has no data for this column.public int size()
size in interface java.util.Collection<ColumnData>size in class java.util.AbstractCollection<ColumnData>public java.util.Iterator<ColumnData> iterator()
iterator in interface java.lang.Iterable<ColumnData>iterator in interface java.util.Collection<ColumnData>iterator in class java.util.AbstractCollection<ColumnData>public java.lang.Iterable<Cell> cells()
Row
The iterable guarantees that cells are returned in order of Cell.comparator.
public BTreeSearchIterator<ColumnDefinition,ColumnData> searchIterator()
Rowpublic Row filter(ColumnFilter filter, CFMetaData metadata)
Rowfilter.
2) doesn't include any data that belongs to a dropped column (recorded in metadata).public Row filter(ColumnFilter filter, DeletionTime activeDeletion, boolean setActiveDeletionToRow, CFMetaData metadata)
Rowfilter.
2) doesn't include any data that belongs to a dropped column (recorded in metadata).
3) doesn't include any data that is shadowed/deleted by activeDeletion.
4) uses activeDeletion as row deletion iff setActiveDeletionToRow and activeDeletion supersedes the row deletion.public boolean hasComplex()
Rowpublic boolean hasComplexDeletion()
Rowpublic Row markCounterLocalToBeCleared()
Rowpublic boolean hasDeletion(int nowInSec)
RownowInSec - the current time in seconds to decid if a cell is expired.public Row updateAllTimestamp(long newTimestamp)
newTimestamp and
all deletion timestamp by newTimestamp - 1.
This exists for the Paxos path, see PartitionUpdate.updateAllTimestamp(long) for additional details.public Row withRowDeletion(DeletionTime newDeletion)
Row
WARNING: this method does not check that nothing in the row is shadowed by the provided
deletion and if that is the case, the created row will be invalid. It is thus up to the
caller to verify that this is not the case and the only reasonable use case of this is probably
when the row and the deletion comes from the same UnfilteredRowIterator since that gives
use this guarantee.
public Row purge(DeletionPurger purger, int nowInSec)
Rowpurger.purger - the DeletionPurger to use to decide what can be purged.nowInSec - the current time to decide what is deleted and what isn't (in the case of expired cells).purger.public int dataSize()
public long unsharedHeapSizeExcludingData()
public static Row.Builder sortedBuilder()
public static Row.Builder unsortedBuilder(int nowInSec)
public void setValue(ColumnDefinition column, CellPath path, java.nio.ByteBuffer value)
public java.lang.Iterable<Cell> cellsInLegacyOrder(CFMetaData metadata, boolean reversed)
RowIn 3.0+, columns are sorted so that all simple columns are before all complex columns. Previously however, the cells where just sorted by the column name. This iterator return cells in that legacy order. It's only ever meaningful for backward/thrift compatibility code.
metadata - the table this is a row of.reversed - if cells should returned in reverse order.Copyright © 2016 The Apache Software Foundation