The

DataProviderAdapter

interface publishes a single method named

getData()

. Your Data Provider Adapter service must provide an implementation of this method. The Data Service calls the

getData()

method of your adapter in response to the queries your adapter is registered to process.

Your implementation of the

getData()

method must accept an object of type

com.vmware.vise.data.query.RequestSpec

as a parameter, and must return an object of type

com.vmware.vise.data.query.Response

.

The

RequestSpec

object parameter to the

getData()

method contains an array of Data Service query objects. Each query contains a target object and one or more constraints that define the information that the client requests, as well as the expected format for results.

Your

getData()

method determines what information it must fetch by processing each Data Service query and handling the included constraints. The

getData()

method must then retrieve that information, through whatever means your data source provides, such as a database query or a remote device method.

Your

getData()

method must format the retrieved information as a specific result type for each query, and then return those results as an array, packaged in a

Response

object.