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LodestarVectorStore.GetDynamicCollection

Refuses: this store serves typed records only.

public VectorStoreCollection<object, Dictionary<string, object>> GetDynamicCollection(string name, VectorStoreCollectionDefinition definition)

Parameters — name would name the collection and definition would describe its schema. Neither is read.

Returns — never returns.

Exceptions — NotSupportedException, always.

Example — the refusal, and what it says.

using Lodestar.Extensions.VectorData;
using Microsoft.Extensions.VectorData;

using var store = new LodestarVectorStore();
string reason;
try
{
    store.GetDynamicCollection("notes", new VectorStoreCollectionDefinition());
    reason = "served";
}
catch (NotSupportedException error)
{
    reason = error.Message;
}

string refusal = reason;  // => This store serves typed records only.…

Remarks — the base class declares this member abstract, so it is present; it refuses rather than returning a collection that would then refuse every filter. A dynamic record is a Dictionary<string, object>, and a filter in this package is an Expression<Func<TRecord, bool>> compiled against the record's properties — a dictionary has none to bind to. Interpreting the expression over dictionary lookups instead is a second filter path, and the typed key the collection is built on disappears with it.

Declare a record type and call LodestarVectorStore.GetCollection instead.

Applies to — net10.0, netstandard2.0.

See also — LodestarVectorStore.