org.apache.lens.driver.es.client

Class ESResultSet

java.lang.Object

org.apache.lens.server.api.driver.LensResultSet

org.apache.lens.server.api.driver.InMemoryResultSet

org.apache.lens.driver.es.client.ESResultSet

public class ESResultSet
extends InMemoryResultSet

The class ESResultset for iterating over elastic search result set

Constructor Summary

Constructors

Constructor and Description
ESResultSet(int size, Iterable<ResultRow> resultSetIterable, LensResultSetMetadata metadata)

Method Summary

Methods

Modifier and Type	Method and Description
LensResultSetMetadata	getMetadata() Get the result set metadata
boolean	hasNext() Whether there is another result row available.
ResultRow	next() Read the next result row.
boolean	seekToStart()
void	setFetchSize(int i) Set number of rows to be fetched at time
Integer	size() Get the size of the result set.

Methods inherited from class org.apache.lens.server.api.driver.InMemoryResultSet

canBePurged, getOutputPath, isHttpResultAvailable, setFullyAccessed, toQueryResult

Methods inherited from class java.lang.Object

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

Constructor Detail

ESResultSet

public ESResultSet(int size,
           Iterable<ResultRow> resultSetIterable,
           LensResultSetMetadata metadata)

Method Detail

hasNext

public boolean hasNext()

Description copied from class: InMemoryResultSet

Whether there is another result row available.

Specified by:

hasNext in class InMemoryResultSet

Returns:

true if next row if available, false otherwise

next

public ResultRow next()

Description copied from class: InMemoryResultSet

Read the next result row.

Specified by:

next in class InMemoryResultSet

Returns:

The row as list of object

setFetchSize

public void setFetchSize(int i)

Description copied from class: InMemoryResultSet

Set number of rows to be fetched at time

Specified by:

setFetchSize in class InMemoryResultSet

size

public Integer size()

Description copied from class: LensResultSet

Get the size of the result set.

Specified by:

size in class LensResultSet

Returns:

The size if available, -1 if not available.

getMetadata

public LensResultSetMetadata getMetadata()

Description copied from class: LensResultSet

Get the result set metadata

Specified by:

getMetadata in class LensResultSet

Returns:

Returns LensResultSetMetadata

seekToStart

public boolean seekToStart()
                    throws LensException

Specified by:

seekToStart in class InMemoryResultSet

Throws:

LensException