org.apache.cassandra.db

Class ReadCommand

java.lang.Object

org.apache.cassandra.db.ReadCommand

All Implemented Interfaces:

IReadCommand, Pageable

Direct Known Subclasses:

SliceByNamesReadCommand, SliceFromReadCommand

public abstract class ReadCommand
extends java.lang.Object
implements IReadCommand, Pageable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ReadCommand.Type

Nested classes/interfaces inherited from interface org.apache.cassandra.service.pager.Pageable

Pageable.ReadCommands

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	cfName
protected ReadCommand.Type	commandType
java.nio.ByteBuffer	key
java.lang.String	ksName
static org.apache.cassandra.db.ReadCommandSerializer	serializer
long	timestamp

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ReadCommand(java.lang.String ksName, java.nio.ByteBuffer key, java.lang.String cfName, long timestamp, ReadCommand.Type cmdType)

Method Summary

Methods

Modifier and Type	Method and Description
abstract ReadCommand	copy()
static ReadCommand	create(java.lang.String ksName, java.nio.ByteBuffer key, java.lang.String cfName, long timestamp, IDiskAtomFilter filter)
MessageOut<ReadCommand>	createMessage()
abstract IDiskAtomFilter	filter()
java.lang.String	getColumnFamilyName()
java.lang.String	getKeyspace()
abstract Row	getRow(Keyspace keyspace)
long	getTimeout()
boolean	isDigestQuery()
ReadCommand	maybeGenerateRetryCommand(RowDataResolver resolver, Row row)
Row	maybeTrim(Row row)
ReadCommand	setIsDigestQuery(boolean isDigestQuery)

Methods inherited from class java.lang.Object

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

Field Detail

serializer

public static final org.apache.cassandra.db.ReadCommandSerializer serializer

ksName

public final java.lang.String ksName

cfName

public final java.lang.String cfName

key

public final java.nio.ByteBuffer key

timestamp

public final long timestamp

commandType

protected final ReadCommand.Type commandType

Constructor Detail

ReadCommand

protected ReadCommand(java.lang.String ksName,
           java.nio.ByteBuffer key,
           java.lang.String cfName,
           long timestamp,
           ReadCommand.Type cmdType)

Method Detail

createMessage

public MessageOut<ReadCommand> createMessage()

create

public static ReadCommand create(java.lang.String ksName,
                 java.nio.ByteBuffer key,
                 java.lang.String cfName,
                 long timestamp,
                 IDiskAtomFilter filter)

isDigestQuery

public boolean isDigestQuery()

setIsDigestQuery

public ReadCommand setIsDigestQuery(boolean isDigestQuery)

getColumnFamilyName

public java.lang.String getColumnFamilyName()

copy

public abstract ReadCommand copy()

getRow

public abstract Row getRow(Keyspace keyspace)

filter

public abstract IDiskAtomFilter filter()

getKeyspace

public java.lang.String getKeyspace()

Specified by:

getKeyspace in interface IReadCommand

maybeGenerateRetryCommand

public ReadCommand maybeGenerateRetryCommand(RowDataResolver resolver,
                                    Row row)

maybeTrim

public Row maybeTrim(Row row)

getTimeout

public long getTimeout()

Specified by:

getTimeout in interface IReadCommand