/**
* Write the constraint to a XMLWriter instance.
*
* @param \XMLWriter $xml The XMLWriter to write to
* @param \TYPO3\FLOW3\Package\MetaData\AbstractConstraint $constraint The constraint to write
* @return void
*/
protected static function writeConstraint(\XMLWriter $xml, \TYPO3\FLOW3\Package\MetaData\AbstractConstraint $constraint)
{
$xml->startElement($constraint->getConstraintScope());
if (strlen($constraint->getMinVersion())) {
$xml->writeAttribute('minVersion', $constraint->getMinVersion());
}
if (strlen($constraint->getMaxVersion())) {
$xml->writeAttribute('maxVersion', $constraint->getMaxVersion());
}
switch ($constraint->getConstraintScope()) {
case \TYPO3\FLOW3\Package\MetaData::CONSTRAINT_SCOPE_SYSTEM:
if (strlen($constraint->getType())) {
$xml->writeAttribute('type', $constraint->getType());
}
break;
case \TYPO3\FLOW3\Package\MetaData::CONSTRAINT_SCOPE_PACKAGE:
break;
}
if (strlen($constraint->getValue())) {
$xml->text($constraint->getValue());
}
$xml->endElement();
}