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authorFabio Bas <ctrlaltca@gmail.com>2015-01-20 19:22:34 +0100
committerFabio Bas <ctrlaltca@gmail.com>2015-01-20 19:22:34 +0100
commit169950e09cad0e69a7dcbcdabe7ef86086766483 (patch)
treeadfd97a9f81f77ba424092b22504039cf38def0e /framework/Collections/TDummyDataSourceIterator.php
parentd45b5615d48bff5373a6cda0728cb26332c3d962 (diff)
One class per file: framework/Collections/
Diffstat (limited to 'framework/Collections/TDummyDataSourceIterator.php')
-rw-r--r--framework/Collections/TDummyDataSourceIterator.php87
1 files changed, 87 insertions, 0 deletions
diff --git a/framework/Collections/TDummyDataSourceIterator.php b/framework/Collections/TDummyDataSourceIterator.php
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+<?php
+/**
+ * TDummyDataSource, TDummyDataSourceIterator classes
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005-2014 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @package System.Collections
+ */
+
+/**
+ * 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;
+ }
+} \ No newline at end of file