Engine.php

<?php
class ZendDbSchema_Validate_Db_Schema_Table_Mysql_Engine
    extends Zend_Validate_Abstract
{
    const ENGINE_EMPTY = 'tableEngineEmpty';
    const INVALID      = 'tableEngineInvalid';
    const NOT_AVAIBLE  = 'tableEngineNotAvaible';

    protected $_messageTemplates = array(
        self::ENGINE_EMPTY => "table engine can not be empty",
        self::INVALID      => 'Engine %value% is not valid engine type',
        self::NOT_AVAIBLE  => "Engine %value% is not avaible"
    );

    protected $_tableEngines = array(
        'MYISAM',
        'MEMORY',
        'INNODB',
        'FEDERATED',
        'BLACKHOLE',
        'MERGE',
        'EXAMPLE',
        'ARCHIVE',
        'CSV'
    );

    public function isValid($value)
    {
        $schema = null;
        if ($value instanceof ZendDbSchema_Db_Schema_Table) {
            $schema = $value;
            $value = $schema->__get('engine');
        }

        if (empty($value)) {
            $this->_error(self::ENGINE_EMPTY);
            return false;
        }
        if (!in_array(strtoupper($value), $this->_tableEngines)) {
            $this->_error(self::INVALID, $value);
            return false;
        }
        return true;
    }
}