org.apache.cassandra.db

Class SinglePartitionSliceCommand

java.lang.Object

org.apache.cassandra.db.ReadCommand

org.apache.cassandra.db.SinglePartitionReadCommand<ClusteringIndexSliceFilter>

org.apache.cassandra.db.SinglePartitionSliceCommand

All Implemented Interfaces:

ReadQuery

public class SinglePartitionSliceCommand
extends SinglePartitionReadCommand<ClusteringIndexSliceFilter>

General interface for storage-engine read queries.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.db.SinglePartitionReadCommand

SinglePartitionReadCommand.Group

Nested classes/interfaces inherited from class org.apache.cassandra.db.ReadCommand

ReadCommand.Kind, ReadCommand.SelectionDeserializer

Field Summary

Fields inherited from class org.apache.cassandra.db.SinglePartitionReadCommand

selectionDeserializer

Fields inherited from class org.apache.cassandra.db.ReadCommand

legacyPagedRangeCommandSerializer, legacyRangeSliceCommandSerializer, legacyReadCommandSerializer, logger, rangeSliceSerializer, serializer

Fields inherited from interface org.apache.cassandra.db.ReadQuery

EMPTY

Constructor Summary

Constructors

Constructor and Description
SinglePartitionSliceCommand(boolean isDigest, boolean isForThrift, CFMetaData metadata, int nowInSec, ColumnFilter columnFilter, RowFilter rowFilter, DataLimits limits, DecoratedKey partitionKey, ClusteringIndexSliceFilter clusteringIndexFilter)
SinglePartitionSliceCommand(CFMetaData metadata, int nowInSec, ColumnFilter columnFilter, RowFilter rowFilter, DataLimits limits, DecoratedKey partitionKey, ClusteringIndexSliceFilter clusteringIndexFilter)

Method Summary

Modifier and Type	Method and Description
SinglePartitionSliceCommand	copy() Returns a copy of this command.
static SinglePartitionReadCommand	create(CFMetaData metadata, int nowInSec, java.nio.ByteBuffer key, Slices slices) Creates a new single partition slice command for the provided slices.
static SinglePartitionReadCommand	create(CFMetaData metadata, int nowInSec, DecoratedKey key, Slice slice) Creates a new single partition slice command for the provided single slice.
static SinglePartitionReadCommand	create(CFMetaData metadata, int nowInSec, DecoratedKey key, Slices slices) Creates a new single partition slice command for the provided slices.
protected int	oldestUnrepairedTombstone()
protected UnfilteredRowIterator	queryMemtableAndDiskInternal(ColumnFamilyStore cfs, boolean copyOnHeap)

Methods inherited from class org.apache.cassandra.db.SinglePartitionReadCommand

appendCQLWhereClause, clusteringIndexFilter, clusteringIndexFilter, create, create, create, createMessage, execute, forPaging, fullPartitionRead, fullPartitionRead, getPager, getTimeout, partitionKey, queryMemtableAndDisk, queryStorage, recordLatency, selectionSerializedSize, selects, serializeSelection, toString

Methods inherited from class org.apache.cassandra.db.ReadCommand

columnFilter, createResponse, executeInternal, executeLocally, getIndex, isDigestQuery, isForThrift, limits, metadata, nowInSec, rowFilter, setIsDigestQuery, startOrderGroup, toCQLString, withoutPurgeableTombstones

Methods inherited from class java.lang.Object

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

Constructor Detail

SinglePartitionSliceCommand

public SinglePartitionSliceCommand(boolean isDigest,
                                   boolean isForThrift,
                                   CFMetaData metadata,
                                   int nowInSec,
                                   ColumnFilter columnFilter,
                                   RowFilter rowFilter,
                                   DataLimits limits,
                                   DecoratedKey partitionKey,
                                   ClusteringIndexSliceFilter clusteringIndexFilter)

SinglePartitionSliceCommand

public SinglePartitionSliceCommand(CFMetaData metadata,
                                   int nowInSec,
                                   ColumnFilter columnFilter,
                                   RowFilter rowFilter,
                                   DataLimits limits,
                                   DecoratedKey partitionKey,
                                   ClusteringIndexSliceFilter clusteringIndexFilter)

Method Detail

create

public static SinglePartitionReadCommand create(CFMetaData metadata,
                                                int nowInSec,
                                                DecoratedKey key,
                                                Slice slice)

Creates a new single partition slice command for the provided single slice.

Parameters:

metadata - the table to query.

nowInSec - the time in seconds to use are "now" for this query.

key - the partition key for the partition to query.

slice - the slice of rows to query.

Returns:

a newly created read command that queries slice in key. The returned query will query every columns for the table (without limit or row filtering) and be in forward order.

create

public static SinglePartitionReadCommand create(CFMetaData metadata,
                                                int nowInSec,
                                                DecoratedKey key,
                                                Slices slices)

Creates a new single partition slice command for the provided slices.

Parameters:

metadata - the table to query.

nowInSec - the time in seconds to use are "now" for this query.

key - the partition key for the partition to query.

slices - the slices of rows to query.

Returns:

a newly created read command that queries the slices in key. The returned query will query every columns for the table (without limit or row filtering) and be in forward order.

create

public static SinglePartitionReadCommand create(CFMetaData metadata,
                                                int nowInSec,
                                                java.nio.ByteBuffer key,
                                                Slices slices)

Creates a new single partition slice command for the provided slices.

Parameters:

metadata - the table to query.

nowInSec - the time in seconds to use are "now" for this query.

key - the partition key for the partition to query.

slices - the slices of rows to query.

Returns:

a newly created read command that queries the slices in key. The returned query will query every columns for the table (without limit or row filtering) and be in forward order.

copy

public SinglePartitionSliceCommand copy()

Description copied from class: ReadCommand

Returns a copy of this command.

Specified by:

copy in class ReadCommand

Returns:

a copy of this command.

oldestUnrepairedTombstone

protected int oldestUnrepairedTombstone()

Specified by:

oldestUnrepairedTombstone in class ReadCommand

queryMemtableAndDiskInternal

protected UnfilteredRowIterator queryMemtableAndDiskInternal(ColumnFamilyStore cfs,
                                                             boolean copyOnHeap)

Specified by:

queryMemtableAndDiskInternal in class SinglePartitionReadCommand<ClusteringIndexSliceFilter>