This project has retired. For details please refer to its Attic page.

org.apache.gora.query
Interface PartitionQuery<K,T extends Persistent>

All Superinterfaces:

org.apache.hadoop.conf.Configurable, Query<K,T>, org.apache.hadoop.io.Writable

All Known Implementing Classes:

FileSplitPartitionQuery, PartitionQueryImpl

public interface PartitionQuery<K,T extends Persistent>
extends Query<K,T>

PartitionQuery divides the results of the Query to multi partitions, so that queries can be run locally on the nodes that hold the data. PartitionQuery's are used for generating Hadoop InputSplits.

Method Summary

String[]

getLocations() Returns the locations on which this partial query will run locally.

Methods inherited from interface org.apache.gora.query.Query

execute, getDataStore, getEndKey, getEndTime, getFields, getKey, getLimit, getStartKey, getStartTime, getTimestamp, setDataStore, setEndKey, setEndTime, setFields, setKey, setKeyRange, setLimit, setStartKey, setStartTime, setTimeRange, setTimestamp

Methods inherited from interface org.apache.hadoop.io.Writable

readFields, write

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Method Detail

getLocations

String[] getLocations()

Returns the locations on which this partial query will run locally.

Returns:

the addresses of machines