From d9f864a13f9216b7ee78a85c53d3184220eb01c3 Mon Sep 17 00:00:00 2001
From: Silvio <silvio@devlet.com.br>
Date: Thu, 15 Jul 2010 18:15:21 -0300
Subject: Moving iterators to their own folder
---
classes/iterators/IsisValueIterator.php | 62 +++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
create mode 100644 classes/iterators/IsisValueIterator.php
(limited to 'classes/iterators/IsisValueIterator.php')
diff --git a/classes/iterators/IsisValueIterator.php b/classes/iterators/IsisValueIterator.php
new file mode 100644
index 0000000..f10125d
--- /dev/null
+++ b/classes/iterators/IsisValueIterator.php
@@ -0,0 +1,62 @@
+<?php
+
+/**
+ * Isis value iterator. Iterates over all values for
+ * each result row.
+ */
+class IsisValueIterator implements Iterator
+{
+ private $valueset;
+ private $row = 0;
+ private $rows = 0;
+
+ /**
+ * Constructor.
+ *
+ * @param $class
+ * Instance of IsisConnector or child class.
+ *
+ * @param $field
+ * Field to iterate over.
+ */
+ public function __construct($class, $field) {
+ $this->rows = $class->getRows($field);
+ $this->valueset = $class->getValues($field);
+ }
+
+ /**
+ * Rewind the Iterator to the first element.
+ */
+ function rewind() {
+ $this->row = 0;
+ $this->value = 0;
+ }
+
+ /**
+ * Return the key of the current element.
+ */
+ function key() {
+ return $this->row;
+ }
+
+ /**
+ * Return the current element.
+ */
+ function current() {
+ return $this->valueset[$this->row];
+ }
+
+ /**
+ * Move forward to next element.
+ */
+ function next() {
+ ++$this->row;
+ }
+
+ /**
+ * Check if there is a current element after calls to rewind() or next().
+ */
+ function valid() {
+ return $this->row <= $this->rows;
+ }
+}
--
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