public function ImmutableInvalidationBase::getExpression in Purge 8.3
Get the invalidation expression.
Return value
mixed|null Mixed expression (or NULL) that describes what needs to be invalidated.
Overrides ImmutableInvalidationInterface::getExpression
1 method overrides ImmutableInvalidationBase::getExpression()
- ImmutableInvalidation::getExpression in src/
Plugin/ Purge/ Invalidation/ ImmutableInvalidation.php - Get the invalidation expression.
File
- src/
Plugin/ Purge/ Invalidation/ ImmutableInvalidationBase.php, line 83
Class
- ImmutableInvalidationBase
- Provides base implementations the immutable invalidation object.
Namespace
Drupal\purge\Plugin\Purge\InvalidationCode
public function getExpression() {
return $this->expression;
}