org.apache.cassandra.service
Class RowDigestResolver

java.lang.Object
  org.apache.cassandra.service.AbstractRowResolver
      org.apache.cassandra.service.RowDigestResolver

All Implemented Interfaces:

IResponseResolver<Row>

public class RowDigestResolver
extends AbstractRowResolver

Field Summary

Fields inherited from class org.apache.cassandra.service.AbstractRowResolver

key, logger, replies, table

Constructor Summary

RowDigestResolver(java.lang.String table, java.nio.ByteBuffer key)

Method Summary

Row	getData() Special case of resolve() so that CL.ONE reads never throw DigestMismatchException in the foreground
boolean	isDataPresent()
Row	resolve() This Method resolves the responses that are passed in .

Methods inherited from class org.apache.cassandra.service.AbstractRowResolver

getMaxLiveColumns, getMessages, injectPreProcessed, preprocess

Methods inherited from class java.lang.Object

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

Constructor Detail

RowDigestResolver

public RowDigestResolver(java.lang.String table,
                         java.nio.ByteBuffer key)

Method Detail

getData

public Row getData()
            throws java.io.IOException

Special case of resolve() so that CL.ONE reads never throw DigestMismatchException in the foreground

Throws:

java.io.IOException

resolve

public Row resolve()
            throws DigestMismatchException,
                   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.

Throws:

DigestMismatchException

java.io.IOException

isDataPresent

public boolean isDataPresent()