PhutilExampleBufferedIterator.php
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	<?php

	/**
	* Example implementation and test case for @{class:PhutilBufferedIterator}.
	*/
	final class PhutilExampleBufferedIterator extends PhutilBufferedIterator {

	private $cursor;
	private $data;

	protected function didRewind() {
	$this->cursor = 0;
	}

	protected function loadPage() {
	$result = $this->query($this->cursor, $this->getPageSize());
	$this->cursor += count($result);
	return $result;
	}

	public function setExampleData(array $data) {
	$this->data = $data;
	}

	private function query($cursor, $limit) {
	// NOTE: Normally you'd load or generate results from some external source
	// here. Since this is an example, we just use a premade dataset.

	return array_slice($this->data, $cursor, $limit);
	}

	}