Package com.cognite.client

Class DataPoints.FlatMapIterator<T>

java.lang.Object

com.cognite.client.DataPoints.FlatMapIterator<T>

Type Parameters:

T - The element type of the input iterator's nested list.

All Implemented Interfaces:

Iterator<List<T>>

Enclosing class:

DataPoints

public abstract static class DataPoints.FlatMapIterator<T>
extends Object
implements Iterator<List<T>>

This Iterator takes the input from an input Iterator and maps the output to a new type via a mapping Function. The input Iterator must provide a nested list (List<List<T>>) as its output. I.e. it iterates over a potentially large collection via a set of batches.

Constructor Summary

Constructors

Constructor	Description
FlatMapIterator()

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()
List<T>	next()
static <T> DataPoints.FlatMapIterator<T>	of(Iterator<List<List<T>>> inputIterator)	Creates a new DataPoints.FlatMapIterator translating the input Iterator elements by unwrapping the nested list objects.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Details

FlatMapIterator

public FlatMapIterator()

Method Details

of

public static <T> DataPoints.FlatMapIterator<T> of(Iterator<List<List<T>>> inputIterator)

Creates a new DataPoints.FlatMapIterator translating the input Iterator elements by unwrapping the nested list objects.

Type Parameters:

T - The object type of the input iterator's list.

Parameters:

inputIterator - The iterator who's elements should be un-nested.

Returns:

The iterator producing the mapped objects.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<T>

next

public List<T> next()
             throws NoSuchElementException

Specified by:

next in interface Iterator<T>

Throws:

NoSuchElementException