queryables abstract method
Get optional metadata about queryable properties for the feature collection represented by this source.
Returns null if no "queryables" metadata is available for this feature source.
An instance of OGCQueryableObject
contains metadata about supported
queryable parameters (in properties
) instantiated as
OGCQueryableProperty
objects. You may use this information when
specifying actual query parameters (for feature collection properties)
using BoundedItemsQuery
class when calling items
or itemsAll
.
An OGC API Features service providing "queryables" metadata must publish
support for the Queryables
conformance class specified in the
OGC API - Features - Part 3: Filtering
standard.
Implementation
Future<OGCQueryableObject?> queryables();