com.mapr.ojai.store.impl

Class DrillDocumentStream

java.lang.Object

com.mapr.ojai.store.impl.AbstractDocumentStream

com.mapr.ojai.store.impl.QueryDocumentStream

com.mapr.ojai.store.impl.DrillDocumentStream

All Implemented Interfaces:

com.mapr.db.impl.OjaiQueryProperties, java.lang.AutoCloseable, java.lang.Iterable<org.ojai.Document>, org.ojai.DocumentStream

public class DrillDocumentStream
extends QueryDocumentStream

Nested Class Summary

Nested classes/interfaces inherited from interface com.mapr.db.impl.OjaiQueryProperties

com.mapr.db.impl.OjaiQueryProperties.QueryPath

Field Summary

Fields inherited from class com.mapr.ojai.store.impl.AbstractDocumentStream

isUsed

Constructor Summary

Constructors

Constructor and Description
DrillDocumentStream(OjaiConnection ojaiConnection, QueryContext queryContext)
DrillDocumentStream(OjaiConnection ojaiConnection, QueryContext queryContext, SharedDrillSession sharedDrillSession)

Method Summary

Modifier and Type	Method and Description
protected void	cancelQuery() Perform whatever steps the derived class requires for canceling.
protected void	closeDerived() Perform whatever steps the derived class requires for closing.
QueryContext	getQueryContext()
org.apache.drill.exec.proto.UserBitShared.QueryId	getQueryId() Get the Drill QueryId for the query.
com.mapr.db.impl.OjaiQueryProperties.QueryPath	getQueryPath() Returns QueryPath.DIRECT.
void	getQueryPlan(java.util.List<java.util.Map<java.lang.String,java.lang.Object>> planList)
java.util.Iterator<org.ojai.Document>	iterator()
void	streamTo(org.ojai.DocumentListener docListener) Overriding classes must call this at the end of their own successful streamTo() in order to mark the abstract stream as used.
protected void	submitQuery(org.ojai.DocumentListener docListener) Submit the query for execution.

Methods inherited from class com.mapr.ojai.store.impl.QueryDocumentStream

getIndexUsed, getQueryPlan

Methods inherited from class com.mapr.ojai.store.impl.AbstractDocumentStream

checkState, close, documentReaders, isCanceled, isClosed

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

DrillDocumentStream

public DrillDocumentStream(OjaiConnection ojaiConnection,
                           QueryContext queryContext,
                           SharedDrillSession sharedDrillSession)

DrillDocumentStream

public DrillDocumentStream(OjaiConnection ojaiConnection,
                           QueryContext queryContext)

Method Detail

cancelQuery

protected void cancelQuery()

Description copied from class: AbstractDocumentStream

Perform whatever steps the derived class requires for canceling.

Overrides:

cancelQuery in class AbstractDocumentStream

submitQuery

protected void submitQuery(org.ojai.DocumentListener docListener)

Description copied from class: QueryDocumentStream

Submit the query for execution.

Overrides:

submitQuery in class QueryDocumentStream

Parameters:

docListener - the listener to send the results to

closeDerived

protected void closeDerived()

Description copied from class: AbstractDocumentStream

Perform whatever steps the derived class requires for closing. Note that the object's lock/monitor will be held, as this is called by the final synchronized AbstractDocumentStream.close() method.

Overrides:

closeDerived in class QueryDocumentStream

iterator

public java.util.Iterator<org.ojai.Document> iterator()

streamTo

public void streamTo(org.ojai.DocumentListener docListener)

Description copied from class: AbstractDocumentStream

Overriding classes must call this at the end of their own successful streamTo() in order to mark the abstract stream as used.

Specified by:

streamTo in interface org.ojai.DocumentStream

Overrides:

streamTo in class AbstractDocumentStream

getQueryPath

public com.mapr.db.impl.OjaiQueryProperties.QueryPath getQueryPath()

Description copied from class: QueryDocumentStream

Returns QueryPath.DIRECT.

Specified by:

getQueryPath in interface com.mapr.db.impl.OjaiQueryProperties

Overrides:

getQueryPath in class QueryDocumentStream

getQueryId

public org.apache.drill.exec.proto.UserBitShared.QueryId getQueryId()

Get the Drill QueryId for the query. The value will only be valid after drill begins to return results. This can be used in testing to get additional information from Drill about the query's plan and performance.

Returns:

Drill's query id

getQueryContext

public QueryContext getQueryContext()

getQueryPlan

public void getQueryPlan(java.util.List<java.util.Map<java.lang.String,java.lang.Object>> planList)

Specified by:

getQueryPlan in interface com.mapr.db.impl.OjaiQueryProperties

Specified by:

getQueryPlan in class QueryDocumentStream