org.apache.kylin.storage.hbase.ii.coprocessor.endpoint

Class EndpointTupleIterator

java.lang.Object

org.apache.kylin.storage.hbase.ii.coprocessor.endpoint.EndpointTupleIterator

All Implemented Interfaces:

Iterator<org.apache.kylin.metadata.tuple.ITuple>, org.apache.kylin.metadata.tuple.ITupleIterator

public class EndpointTupleIterator
extends Object
implements org.apache.kylin.metadata.tuple.ITupleIterator

Field Summary

Fields inherited from interface org.apache.kylin.metadata.tuple.ITupleIterator

EMPTY_TUPLE_ITERATOR

Constructor Summary

Constructors

Constructor and Description
EndpointTupleIterator(IISegment segment, org.apache.kylin.metadata.filter.TupleFilter rootFilter, Collection<org.apache.kylin.metadata.model.TblColRef> groupBy, List<org.apache.kylin.metadata.model.FunctionDesc> measures, org.apache.kylin.storage.StorageContext context, org.apache.hadoop.hbase.client.HConnection conn, org.apache.kylin.metadata.tuple.TupleInfo returnTupleInfo)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
com.google.common.collect.Range<Long>	getCacheExcludedPeriod() tells storage layer cache what time period of data should not be cached.
boolean	hasNext()
org.apache.kylin.metadata.tuple.ITuple	next()
void	remove()

Methods inherited from class java.lang.Object

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

Constructor Detail

EndpointTupleIterator

public EndpointTupleIterator(IISegment segment,
                     org.apache.kylin.metadata.filter.TupleFilter rootFilter,
                     Collection<org.apache.kylin.metadata.model.TblColRef> groupBy,
                     List<org.apache.kylin.metadata.model.FunctionDesc> measures,
                     org.apache.kylin.storage.StorageContext context,
                     org.apache.hadoop.hbase.client.HConnection conn,
                     org.apache.kylin.metadata.tuple.TupleInfo returnTupleInfo)
                      throws Throwable

Throws:

Throwable

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<org.apache.kylin.metadata.tuple.ITuple>

next

public org.apache.kylin.metadata.tuple.ITuple next()

Specified by:

next in interface Iterator<org.apache.kylin.metadata.tuple.ITuple>

remove

public void remove()

Specified by:

remove in interface Iterator<org.apache.kylin.metadata.tuple.ITuple>

close

public void close()

Specified by:

close in interface org.apache.kylin.metadata.tuple.ITupleIterator

getCacheExcludedPeriod

public com.google.common.collect.Range<Long> getCacheExcludedPeriod()

tells storage layer cache what time period of data should not be cached. for static storage like cube, it will return null for dynamic storage like ii, it will for example exclude the last two minutes for possible data latency

Returns: