UpdateDescriptor

Updates existing descriptor set objects that satisfy the specified constraints.

Parameters

• [optional] ref: Reference to other descriptors within the transaction.

• [optional] constraints

• [optional] properties

• [optional] remove_props

• [optional] label

Details

If the ref parameter is used, constraints will be ignored.

If the ref parameter is specified, it must refers to the search results of a previous FindDescriptorSet.

If the label parameter is present, the descriptor’s labels will be updated.

For more complex searches for objects to update, a Find command must be used first within the transaction.

Examples

Find the descriptor set with the “source” property equal to “open_face”, and remove the “year_created” property, and rename it:

[ {
    "UpdateDescriptor": {
        "constraints": {
            "source": [ "==", "open_face" ],
        },
        "remove_props": [ "year_created" ],
    }
}]

Update the name of the descriptor set that is connected to an entity of the class “Dataset” with a property “name” equal to “Youtube”:

[ {
    "FindEntity": {
        "class": "Dataset",
        "_ref":  1,
        "constraints": {
            "name": ["==", "Youtube"]
        }
    }
}, {
    "FindDescriptorSet": {
        "_ref": 2,
        "is_connected_to": {
            "ref": 1,
            "class": "in_dataset"
        },
        "blobs": false
    }
}, {
    "UpdateDescriptor": {
        "ref": 2,
        "properties": {
            "name": "Youtube8M"
        }
    }
}]