protected function getInternalColumns() { if (is_null($this->columns)) { $this->columns = array(); $keyLength = $this->getKeyLength(); if (is_null($keyLength)) { throw new ErrorException("Cannot create meta-table-schema for indicies when no key-length is specified!"); } $columnPage = new Column(); for ($i = 1; $i <= 33; $i++) { $columnPage->setName("ref{$i}"); $columnPage->setDataType(DataType::INT()); $columnPage->setLength($keyLength); $columnPage->setExtraFlags(Column::EXTRA_PRIMARY_KEY); $this->columns[] = clone $columnPage; $columnPage->setName("val{$i}"); $columnPage->setDataType(DataType::INT()); $columnPage->setLength($keyLength); $columnPage->setExtraFlags(Column::EXTRA_PRIMARY_KEY); $this->columns[] = clone $columnPage; $columnPage->setName("row{$i}"); $columnPage->setDataType(DataType::INT()); $columnPage->setLength($keyLength); $columnPage->setExtraFlags(Column::EXTRA_PRIMARY_KEY); $this->columns[] = clone $columnPage; } } return $this->columns; }