EZ-Components

include/ezcomponents/Graph/src/datasets/array.php

@@ -0,0 +1,71 @@
+<?php
+/**
+ * File containing the ezcGraphArrayDataSet class
+ *
+ * @package Graph
+ * @version 1.3
+ * @copyright Copyright (C) 2005-2008 eZ systems as. All rights reserved.
+ * @license http://ez.no/licenses/new_bsd New BSD License
+ */
+/**
+ * Dataset class which receives arrays and use them as a base for datasets.
+ *
+ * @version 1.3
+ * @package Graph
+ * @mainclass
+ */
+class ezcGraphArrayDataSet extends ezcGraphDataSet
+{
+    /**
+     * Constructor
+     * 
+     * @param array|Iterator $data Array or Iterator containing the data
+     * @return void
+     */
+    public function __construct( $data )
+    {
+        $this->createFromArray( $data );
+        parent::__construct();
+    }
+
+    /**
+     * setData
+     *
+     * Can handle data provided through an array or iterator.
+     * 
+     * @param array|Iterator $data 
+     * @access public
+     * @return void
+     */
+    protected function createFromArray( $data = array() ) 
+    {
+        if ( !is_array( $data ) && 
+             !( $data instanceof Traversable ) )
+        {
+            throw new ezcGraphInvalidArrayDataSourceException( $data );
+        }
+
+        $this->data = array();
+        foreach ( $data as $key => $value )
+        {
+            $this->data[$key] = $value;
+        }
+
+        if ( !count( $this->data ) )
+        {
+            throw new ezcGraphInvalidDataException( 'Data sets should contain some values.' );
+        }
+    }
+
+    /**
+     * Returns the number of elements in this dataset
+     * 
+     * @return int
+     */
+    public function count()
+    {
+        return count( $this->data );
+    }
+}
+
+?>