org.apache.cassandra.service
Class RangeSliceResponseResolver

java.lang.Object
  org.apache.cassandra.service.RangeSliceResponseResolver

All Implemented Interfaces:

IResponseResolver<java.lang.Iterable<Row>>

public class RangeSliceResponseResolver
extends java.lang.Object
implements IResponseResolver<java.lang.Iterable<Row>>

Turns RangeSliceReply objects into row (string -> CF) maps, resolving to the most recent ColumnFamily and setting up read repairs as necessary.

Field Summary

java.util.List<IAsyncResult>	repairResults
protected java.util.Collection<Message>	responses

Constructor Summary

RangeSliceResponseResolver(java.lang.String table)

Method Summary

java.util.List<Row>	getData() returns the data response without comparing with any digests
int	getMaxLiveColumns()
java.lang.Iterable<Message>	getMessages()
boolean	isDataPresent()
void	preprocess(Message message)
java.lang.Iterable<Row>	resolve() This Method resolves the responses that are passed in .
void	setSources(java.util.List<java.net.InetAddress> endpoints)

Methods inherited from class java.lang.Object

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

Field Detail

responses

protected final java.util.Collection<Message> responses

repairResults

public final java.util.List<IAsyncResult> repairResults

Constructor Detail

RangeSliceResponseResolver

public RangeSliceResponseResolver(java.lang.String table)

Method Detail

setSources

public void setSources(java.util.List<java.net.InetAddress> endpoints)

getData

public java.util.List<Row> getData()
                            throws java.io.IOException

Description copied from interface: IResponseResolver

returns the data response without comparing with any digests

Specified by:

getData in interface IResponseResolver<java.lang.Iterable<Row>>

Throws:

java.io.IOException

resolve

public java.lang.Iterable<Row> resolve()
                                throws java.io.IOException

Description copied from interface: IResponseResolver

This Method resolves the responses that are passed in . for example : if its write response then all we get is true or false return values which implies if the writes were successful but for reads its more complicated you need to look at the responses and then based on differences schedule repairs . Hence you need to derive a response resolver based on your needs from this interface.

Specified by:

resolve in interface IResponseResolver<java.lang.Iterable<Row>>

Throws:

java.io.IOException

preprocess

public void preprocess(Message message)

Specified by:

preprocess in interface IResponseResolver<java.lang.Iterable<Row>>

isDataPresent

public boolean isDataPresent()

Specified by:

isDataPresent in interface IResponseResolver<java.lang.Iterable<Row>>

getMessages

public java.lang.Iterable<Message> getMessages()

Specified by:

getMessages in interface IResponseResolver<java.lang.Iterable<Row>>

getMaxLiveColumns

public int getMaxLiveColumns()

Specified by:

getMaxLiveColumns in interface IResponseResolver<java.lang.Iterable<Row>>