org.apache.gora.avro.query

Class AvroResult<K,T extends PersistentBase>

java.lang.Object

org.apache.gora.query.impl.ResultBase<K,T>

org.apache.gora.avro.query.AvroResult<K,T>

All Implemented Interfaces:

Result<K,T>

public class AvroResult<K,T extends PersistentBase>
extends ResultBase<K,T>

Adapter to convert DatumReader to Result.

Field Summary

Fields inherited from class org.apache.gora.query.impl.ResultBase

dataStore, key, limit, offset, persistent, query

Constructor Summary

Constructors

Constructor and Description
AvroResult(AvroStore<K,T> dataStore, AvroQuery<K,T> query, org.apache.avro.io.DatumReader<T> reader, org.apache.avro.io.Decoder decoder)

Method Summary

Modifier and Type	Method and Description
void	close()
float	getProgress() Returns how far along the result has iterated, a value between 0 and 1.
boolean	nextInner() ResultBase.next() calls this function to read the actual results.

Methods inherited from class org.apache.gora.query.impl.ResultBase

clear, filter, get, getDataStore, getKey, getKeyClass, getOffset, getOrCreatePersistent, getPersistentClass, getQuery, isLimitReached, next

Methods inherited from class java.lang.Object

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

Constructor Detail

AvroResult

public AvroResult(AvroStore<K,T> dataStore,
                  AvroQuery<K,T> query,
                  org.apache.avro.io.DatumReader<T> reader,
                  org.apache.avro.io.Decoder decoder)

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Result<K,T extends PersistentBase>

Overrides:

close in class ResultBase<K,T extends PersistentBase>

Throws:

IOException

getProgress

public float getProgress()
                  throws IOException

Description copied from interface: Result

Returns how far along the result has iterated, a value between 0 and 1.

Returns:

a float value representing progress of the job

Throws:

IOException - if there is an erro obtaining progress

nextInner

public boolean nextInner()
                  throws IOException

Description copied from class: ResultBase

ResultBase.next() calls this function to read the actual results.

Specified by:

nextInner in class ResultBase<K,T extends PersistentBase>

Returns:

true if another result exists

Throws:

IOException - if for some reason we reach a result which does not exist