Package org.apache.druid.query

Class IterableRowsCursorHelper

java.lang.Object

org.apache.druid.query.IterableRowsCursorHelper

public class IterableRowsCursorHelper
extends Object

Helper methods to create cursor from iterable of rows

Constructor Summary

Constructors

Constructor	Description
IterableRowsCursorHelper()

Method Summary

Modifier and Type	Method	Description
static Pair<Cursor,Closeable>	getCursorFromIterable(Iterable<Object[]> rows, RowSignature rowSignature)	Creates a cursor that iterates over all the rows generated by the iterable.
static Pair<Cursor,Closeable>	getCursorFromSequence(Sequence<Object[]> rows, RowSignature rowSignature)	Creates a cursor that iterates over all the rows generated by the sequence.
static Pair<Cursor,Closeable>	getCursorFromYielder(Yielder<Object[]> yielderParam, RowSignature rowSignature)

Methods inherited from class java.lang.Object

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

Constructor Detail

IterableRowsCursorHelper

public IterableRowsCursorHelper()

Method Detail

getCursorFromIterable

public static Pair<Cursor,Closeable> getCursorFromIterable(Iterable<Object[]> rows,
                                                                 RowSignature rowSignature)

Creates a cursor that iterates over all the rows generated by the iterable. Presence of __time column is not a necessity

getCursorFromSequence

public static Pair<Cursor,Closeable> getCursorFromSequence(Sequence<Object[]> rows,
                                                                 RowSignature rowSignature)

Creates a cursor that iterates over all the rows generated by the sequence. Presence of __time column is not a necessity.

Returns a pair of cursor that iterates over the rows and closeable that cleans up the created rowWalker

getCursorFromYielder

public static Pair<Cursor,Closeable> getCursorFromYielder(Yielder<Object[]> yielderParam,
                                                                RowSignature rowSignature)