all
Creates a Query to read all entity states with the FieldMask applied to each of the results.
Allows to set property paths for a FieldMask, applied to each of the query results. This processing is performed according to the FieldMask specs.
If the paths array contains entries inapplicable to the resulting entity (e.g. a path references a missing field), such invalid paths are silently ignored.
Return
an instance of Query formed according to the passed parameters
Parameters
entity
the class of a target entity
mask
the property paths for the FieldMask applied to each of the results