14.5.1.1 Loading Or Removing Additional Vertex or Edge Providers

You can alter your graph by adding or removing vertex or edge providers from a specific datasource. Alternatively you can also add empty vertex or edge providers.

Keys in Additionally Loaded Providers

The vertex and edge providers that are loaded must provide the respective keys in accordance with the vertex ID and edge ID strategy of the graph being altered. If the ID strategy is KEYS_AS_IDS, the provider must create a key mapping. But, if the ID strategy is UNSTABLE_GENERATED_IDS, it must not create the key mapping.