org.apache.kudu.client

Class RowResultIterator

java.lang.Object

org.apache.kudu.client.RowResultIterator

All Implemented Interfaces:

Iterable<RowResult>, Iterator<RowResult>

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public class RowResultIterator
extends Object
implements Iterator<RowResult>, Iterable<RowResult>

Class that contains the rows sent by a tablet server, exhausting this iterator only means that all the rows from the last server response were read.

Method Summary

Modifier and Type	Method and Description
static RowResultIterator	empty()
long	getElapsedMillis() Get the number of milliseconds elapsed since the RPC was created up to the moment when this response was created.
int	getNumRows() Get the number of rows in this iterator.
String	getTsUUID() Get the identifier of the tablet server that sent the response.
boolean	hasNext()
Iterator<RowResult>	iterator()
RowResult	next()
void	remove()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

empty

public static RowResultIterator empty()

Returns:

an empty row result iterator

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<RowResult>

next

public RowResult next()

Specified by:

next in interface Iterator<RowResult>

remove

public void remove()

Specified by:

remove in interface Iterator<RowResult>

getNumRows

public int getNumRows()

Get the number of rows in this iterator. If all you want is to count rows, call this and skip the rest.

Returns:

number of rows in this iterator

toString

public String toString()

Overrides:

toString in class Object

iterator

public Iterator<RowResult> iterator()

Specified by:

iterator in interface Iterable<RowResult>

getElapsedMillis

public long getElapsedMillis()

Get the number of milliseconds elapsed since the RPC was created up to the moment when this response was created.

Returns:

elapsed time in milliseconds

getTsUUID

public String getTsUUID()

Get the identifier of the tablet server that sent the response. May be null if the RPC failed before tablet location lookup succeeded.

Returns:

a string containing a UUID