MetadataQuery Method

public static IEnumerable<Metadata> Query(
	Metadata search,
	Func<Metadata, bool> match = null
)

Public Shared Function Query ( 
	search As Metadata,
	Optional match As Func(Of Metadata, Boolean) = Nothing
) As IEnumerable(Of Metadata)

public:
static IEnumerable<Metadata^>^ Query(
	Metadata^ search, 
	Func<Metadata^, bool>^ match = nullptr
)

static member Query : 
        search : Metadata * 
        ?match : Func<Metadata, bool> 
(* Defaults:
        let _match = defaultArg match null
*)
-> IEnumerable<Metadata> 

eDNAAdapters.Metadata.Query = function(search, match);

Parameters

search  Metadata

Metadata values to search.

match  FuncMetadata, Boolean  (Optional)

Optional predicate delegate that defines the valid conditions of the elements being searched.

Return Value

Searches on reference fields require use of match predicate function since the eDNA function to search meta-data, i.e., Configuration.EzSimpleFindPoints, ignores reference field values.

Since meta-data lookups on non-key fields are a linear O(n) operation, consider a strategy that will scan and cache the full meta-data when use case demands multiple search operations or complete meta-data set.

Reference