com.facebook.presto.execution

Class QueryExecution.QueryOutputInfo

java.lang.Object

com.facebook.presto.execution.QueryExecution.QueryOutputInfo

Enclosing interface:

QueryExecution

public static class QueryExecution.QueryOutputInfo
extends Object

Output schema and buffer URIs for query. The info will always contain column names and types. Buffer locations will always contain the full location set, but may be empty. Users of this data should keep a private copy of the seen buffers to handle out of order events from the listener. Once noMoreBufferLocations is set the locations will never change, and it is guaranteed that all previously sent locations are contained in the buffer locations.

Constructor Summary

Constructors

Constructor and Description
QueryOutputInfo(List<String> columnNames, List<Type> columnTypes, Map<URI,TaskId> bufferLocations, boolean noMoreBufferLocations)

Method Summary

Modifier and Type	Method and Description
Map<URI,TaskId>	getBufferLocations()
List<String>	getColumnNames()
List<Type>	getColumnTypes()
boolean	isNoMoreBufferLocations()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryOutputInfo

public QueryOutputInfo(List<String> columnNames,
                       List<Type> columnTypes,
                       Map<URI,TaskId> bufferLocations,
                       boolean noMoreBufferLocations)

Method Detail

getColumnNames

public List<String> getColumnNames()

getColumnTypes

public List<Type> getColumnTypes()

getBufferLocations

public Map<URI,TaskId> getBufferLocations()

isNoMoreBufferLocations

public boolean isNoMoreBufferLocations()