diff options
| author | xue <> | 2006-01-19 05:37:08 +0000 |
|---|---|---|
| committer | xue <> | 2006-01-19 05:37:08 +0000 |
| commit | 5c333928f7f328319f1de4486d5e7ce3a54fc2ce (patch) | |
| tree | 91961c55d0d9bf40538cd5fec0a3afbb588a35b3 /framework/Collections/TDummyDataSource.php | |
| parent | fd5e244960a5824de0b3e7193d373d15be25e4e2 (diff) | |
Added DummyDataSource. TDataGrid completed (tests pending).
Diffstat (limited to 'framework/Collections/TDummyDataSource.php')
| -rw-r--r-- | framework/Collections/TDummyDataSource.php | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/framework/Collections/TDummyDataSource.php b/framework/Collections/TDummyDataSource.php new file mode 100644 index 00000000..74f5f667 --- /dev/null +++ b/framework/Collections/TDummyDataSource.php @@ -0,0 +1,131 @@ +<?php
+/**
+ * TDummyDataSource, TDummyDataSourceIterator classes
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2005 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $ $Date: $
+ * @package System.Collections
+ */
+
+/**
+ * TDummyDataSource class
+ *
+ * TDummyDataSource implements a dummy data collection with a specified number
+ * of dummy data items. 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>
+ * @version $Revision: $ $Date: $
+ * @package System.Collections
+ * @since 3.0
+ */
+class TDummyDataSource extends TComponent implements IteratorAggregate
+{
+ private $_count;
+
+ public function __construct($count)
+ {
+ $this->_count=$count;
+ }
+
+ public function getCount()
+ {
+ return $this->_count;
+ }
+
+ /**
+ * @return Iterator iterator
+ */
+ public function getIterator()
+ {
+ return new TDummyDataSourceIterator($this->_count);
+ }
+}
+
+/**
+ * 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>
+ * @version $Revision: $ $Date: $
+ * @package System.Collections
+ * @since 3.0
+ */
+class TDummyDataSourceIterator implements Iterator
+{
+ private $_index;
+ private $_count;
+
+ /**
+ * Constructor.
+ * @param TList the data to be iterated through
+ * @param integer start index
+ * @param integer number of items to be iterated through
+ */
+ public function __construct($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 |