From 6f7fdef0f500cd4bb540affd3bc1482243f337c1 Mon Sep 17 00:00:00 2001
From: emkael <emkael@tlen.pl>
Date: Wed, 24 Feb 2016 23:18:07 +0100
Subject:  * Prado 3.3.0

---
 .../framework/Collections/TDummyDataSource.php     | 143 +++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 lib/prado/framework/Collections/TDummyDataSource.php

(limited to 'lib/prado/framework/Collections/TDummyDataSource.php')

diff --git a/lib/prado/framework/Collections/TDummyDataSource.php b/lib/prado/framework/Collections/TDummyDataSource.php
new file mode 100644
index 0000000..6aaaeaa
--- /dev/null
+++ b/lib/prado/framework/Collections/TDummyDataSource.php
@@ -0,0 +1,143 @@
+<?php
+/**
+ * TDummyDataSource, TDummyDataSourceIterator classes
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link https://github.com/pradosoft/prado
+ * @copyright Copyright &copy; 2005-2015 The PRADO Group
+ * @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
+ * @package System.Collections
+ */
+
+/**
+ * TDummyDataSource class
+ *
+ * TDummyDataSource implements a dummy data collection with a specified number
+ * of dummy data items. The number of virtual items can be set via
+ * {@link setCount Count} property. You can traverse it using <b>foreach</b>
+ * PHP statement like the following,
+ * <code>
+ * foreach($dummyDataSource as $dataItem)
+ * </code>
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @package System.Collections
+ * @since 3.0
+ */
+class TDummyDataSource extends TComponent implements IteratorAggregate, Countable
+{
+	private $_count;
+
+	/**
+	 * Constructor.
+	 * @param integer number of (virtual) items in the data source.
+	 */
+	public function __construct($count)
+	{
+		$this->_count=$count;
+	}
+
+	/**
+	 * @return integer number of (virtual) items in the data source.
+	 */
+	public function getCount()
+	{
+		return $this->_count;
+	}
+
+	/**
+	 * @return Iterator iterator
+	 */
+	public function getIterator()
+	{
+		return new TDummyDataSourceIterator($this->_count);
+	}
+
+	/**
+	 * Returns the number of (virtual) items in the data source.
+	 * This method is required by Countable interface.
+	 * @return integer number of (virtual) items in the data source.
+	 */
+	public function count()
+	{
+		return $this->getCount();
+	}
+}
+
+/**
+ * TDummyDataSourceIterator class
+ *
+ * TDummyDataSourceIterator implements Iterator interface.
+ *
+ * TDummyDataSourceIterator is used by {@link TDummyDataSource}.
+ * It allows TDummyDataSource to return a new iterator
+ * for traversing its dummy items.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @package System.Collections
+ * @since 3.0
+ */
+class TDummyDataSourceIterator implements Iterator
+{
+	private $_index;
+	private $_count;
+
+	/**
+	 * Constructor.
+	 * @param integer number of (virtual) items in the data source.
+	 */
+	public function __construct($count)
+	{
+		$this->_count=$count;
+		$this->_index=0;
+	}
+
+	/**
+	 * Rewinds internal array pointer.
+	 * This method is required by the interface Iterator.
+	 */
+	public function rewind()
+	{
+		$this->_index=0;
+	}
+
+	/**
+	 * Returns the key of the current array item.
+	 * This method is required by the interface Iterator.
+	 * @return integer the key of the current array item
+	 */
+	public function key()
+	{
+		return $this->_index;
+	}
+
+	/**
+	 * Returns the current array item.
+	 * This method is required by the interface Iterator.
+	 * @return mixed the current array item
+	 */
+	public function current()
+	{
+		return null;
+	}
+
+	/**
+	 * Moves the internal pointer to the next array item.
+	 * This method is required by the interface Iterator.
+	 */
+	public function next()
+	{
+		$this->_index++;
+	}
+
+	/**
+	 * Returns whether there is an item at current position.
+	 * This method is required by the interface Iterator.
+	 * @return boolean
+	 */
+	public function valid()
+	{
+		return $this->_index<$this->_count;
+	}
+}
+
-- 
cgit v1.2.3