From d13c36941c585e84c8986e1eb47a296646cc7a21 Mon Sep 17 00:00:00 2001
From: svncommit <devs@roundcube.net>
Date: Wed, 26 Oct 2005 07:18:10 +0000
Subject: missing mdb2 files

---
 program/lib/MDB2/Iterator.php | 285 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 285 insertions(+)
 create mode 100755 program/lib/MDB2/Iterator.php

(limited to 'program/lib/MDB2/Iterator.php')

diff --git a/program/lib/MDB2/Iterator.php b/program/lib/MDB2/Iterator.php
new file mode 100755
index 000000000..13db77a97
--- /dev/null
+++ b/program/lib/MDB2/Iterator.php
@@ -0,0 +1,285 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP version 5                                                        |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+//
+// $Id$
+
+/**
+ * @package  MDB2
+ * @category Database
+ * @author   Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Iterator implements Iterator
+{
+    protected $fetchmode;
+    protected $result;
+    protected $row;
+
+    // {{{ constructor
+
+    /**
+     * Constructor
+     */
+    public function __construct($result, $fetchmode = MDB2_FETCHMODE_DEFAULT)
+    {
+        $this->result = $result;
+        $this->fetchmode = $fetchmode;
+    }
+
+    // }}}
+    // {{{ seek()
+
+    /**
+    * seek forward to a specific row in a result set
+    *
+    * @param int    $rownum    number of the row where the data can be found
+    * @return void
+    * @access public
+    */
+    public function seek($rownum)
+    {
+        $this->row = null;
+        if ($this->result) {
+            $this->result->seek($rownum);
+        }
+    }
+
+    // }}}
+    // {{{ next()
+
+    /**
+    * Fetch next row of data
+    *
+    * @return void
+    * @access public
+    */
+    public function next()
+    {
+        $this->row = null;
+    }
+
+    // }}}
+    // {{{ current()
+
+    /**
+     * return a row of data
+     *
+    * @return void
+    * @access public
+    */
+    public function current()
+    {
+        if (is_null($this->row)) {
+            $row = $this->result->fetchRow($this->fetchmode);
+            if (PEAR::isError($row)) {
+                $row = false;
+            }
+            $this->row = $row;
+        }
+        return $this->row;
+    }
+
+    // }}}
+    // {{{ valid()
+
+    /**
+    * check if the end of the result set has been reached
+    *
+    * @return mixed true or false on sucess, a MDB2 error on failure
+    * @access public
+    */
+    public function valid()
+    {
+        return (bool)$this->current();
+    }
+
+    // }}}
+    // {{{ free()
+
+    /**
+     * Free the internal resources associated with result.
+     *
+     * @return boolean true on success, false if result is invalid
+     * @access public
+     */
+    public function free()
+    {
+        if ($this->result) {
+            return $this->result->free();
+        }
+        $this->result = null;
+        $this->row = null;
+        return false;
+    }
+
+    // }}}
+    // {{{ key()
+
+    /**
+    * nothing, but Iterator wants to implement this.
+    *
+    * @return void
+    * @access public
+    */
+    public function key()
+    {
+        if ($this->result) {
+            return $this->result->rowCount();
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ rewind()
+
+    /**
+    * seek to the first row in a result set
+    *
+    * @return void
+    * @access public
+    */
+    public function rewind()
+    {
+    }
+
+    // }}}
+    // {{{ destructor
+
+    /**
+     * Destructor
+     */
+    public function __destruct()
+    {
+        $this->free();
+    }
+}
+
+class MDB2_BufferedIterator extends MDB2_Iterator implements SeekableIterator
+{
+    // }}}
+    // {{{ valid()
+
+    /**
+    * check if the end of the result set has been reached
+    *
+    * @return mixed true or false on sucess, a MDB2 error on failure
+    * @access public
+    */
+    public function valid()
+    {
+        if ($this->result) {
+            return $this->result->valid();
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{count()
+
+    /**
+     * returns the number of rows in a result object
+     *
+     * @return mixed MDB2 Error Object or the number of rows
+     * @access public
+     */
+    public function count()
+    {
+        if ($this->result) {
+            return $this->result->numRows();
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ hasPrev()
+
+    /**
+    * check if there is a previous row
+    *
+    * @return mixed true or false on sucess, a MDB2 error on failure
+    * @access public
+    */
+    public function hasPrev()
+    {
+        if ($this->result) {
+            return $this->result->rowCount() > 0;
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ rewind()
+
+    /**
+    * seek to the first row in a result set
+    *
+    * @return mixed MDB2_OK on success, a MDB2 error on failure
+    * @access public
+    */
+    public function rewind()
+    {
+        $this->seek(0);
+    }
+
+    // }}}
+    // {{{ prev()
+
+    /**
+    * move internal row point to the previous row
+    * Fetch and return a row of data
+    *
+    * @return void
+    * @access public
+    */
+    public function prev()
+    {
+        if ($this->hasPrev()) {
+            $this->seek($this->result->rowCount() - 1);
+        } else {
+            return false;
+        }
+        return $this->next();
+    }
+}
+
+?>
\ No newline at end of file
-- 
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