protected function upgradeMeta()
{
$applied = $this->getAppliedSets();
if (array_search('_metaVersion.isLocked', $applied) === false) {
$this->processor->upgradeMeta('ALTER TABLE _metaVersion ADD COLUMN isLocked BOOLEAN NOT NULL DEFAULT FALSE', 'Add lock capability');
$this->processor->metaChange('INSERT INTO _metaChange (name) VALUES (?)', '_metaVersion.isLocked');
}
if (array_search('_metaChange.nameLength', $applied) === false) {
$this->processor->upgradeMeta('ALTER TABLE _metaChange CHANGE COLUMN name name VARCHAR(128) NOT NULL', 'Increase changeset file length maximum from 64 to 128');
$this->processor->metaChange('INSERT INTO _metaChange (name) VALUES (?)', '_metaChange.nameLength');
}
}