org.apache.cassandra.db
Class ReadCommand

java.lang.Object
  org.apache.cassandra.db.ReadCommand

All Implemented Interfaces:

MessageProducer, IReadCommand

Direct Known Subclasses:

SliceByNamesReadCommand, SliceFromReadCommand

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

Field Summary

static byte	CMD_TYPE_GET_SLICE
static byte	CMD_TYPE_GET_SLICE_BY_NAMES
protected byte	commandType
java.nio.ByteBuffer	key
QueryPath	queryPath
java.lang.String	table

Constructor Summary

protected

ReadCommand(java.lang.String table, java.nio.ByteBuffer key, QueryPath queryPath, byte cmdType)

Method Summary

abstract ReadCommand	copy()
java.lang.String	getColumnFamilyName()
protected AbstractType	getComparator()
java.lang.String	getKeyspace()
Message	getMessage(java.lang.Integer version)
abstract Row	getRow(Table table)
boolean	isDigestQuery()
ReadCommand	maybeGenerateRetryCommand(RepairCallback handler, Row row)
void	maybeTrim(Row row)
static org.apache.cassandra.db.ReadCommandSerializer	serializer()
void	setDigestQuery(boolean isDigestQuery)

Methods inherited from class java.lang.Object

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

Field Detail

CMD_TYPE_GET_SLICE_BY_NAMES

public static final byte CMD_TYPE_GET_SLICE_BY_NAMES

See Also:

Constant Field Values

CMD_TYPE_GET_SLICE

public static final byte CMD_TYPE_GET_SLICE

See Also:

Constant Field Values

queryPath

public final QueryPath queryPath

table

public final java.lang.String table

key

public final java.nio.ByteBuffer key

commandType

protected final byte commandType

Constructor Detail

ReadCommand

protected ReadCommand(java.lang.String table,
                      java.nio.ByteBuffer key,
                      QueryPath queryPath,
                      byte cmdType)

Method Detail

serializer

public static org.apache.cassandra.db.ReadCommandSerializer serializer()

getMessage

public Message getMessage(java.lang.Integer version)
                   throws java.io.IOException

Specified by:

getMessage in interface MessageProducer

Throws:

java.io.IOException

isDigestQuery

public boolean isDigestQuery()

setDigestQuery

public void setDigestQuery(boolean isDigestQuery)

getColumnFamilyName

public java.lang.String getColumnFamilyName()

copy

public abstract ReadCommand copy()

getRow

public abstract Row getRow(Table table)
                    throws java.io.IOException

Throws:

java.io.IOException

getComparator

protected AbstractType getComparator()

getKeyspace

public java.lang.String getKeyspace()

Specified by:

getKeyspace in interface IReadCommand

maybeGenerateRetryCommand

public ReadCommand maybeGenerateRetryCommand(RepairCallback handler,
                                             Row row)

maybeTrim

public void maybeTrim(Row row)