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<?php
/**
* Isis entry iterator. Iterates over all entries in
* the database.
*/
class IsisEntryIterator implements Iterator
{
private $start;
private $entry;
private $entries;
/**
* Constructor.
*
* @param $class
* Instance of IsisConnector or child class.
*
* @param $entry
* Start entry number to iterate from.
*/
public function __construct($class, $entry = 1) {
// Read the first value.
$class->read($entry);
// Setup.
$this->class = $class;
$this->entry = $this->start = $entry;
$this->entries = $class->entries;
}
/**
* Rewind the Iterator to the first element.
*/
function rewind() {
$this->entry = $this->start;
}
/**
* Return the key of the current element.
*/
function key() {
return $this->entry;
}
/**
* Return the current element.
*/
function current() {
return $this->class->result;
}
/**
* Move forward to next element.
*/
function next() {
$this->class->read(++$this->entry);
}
/**
* Check if there is a current element after calls to rewind() or next().
*/
function valid() {
return $this->entry <= $this->entries;
}
}
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