Package com.ocient.util

Class MockOcientCluster.IdempotentResultSetProvider

java.lang.Object
com.ocient.util.MockOcientCluster.IdempotentResultSetProvider
Enclosing class:
MockOcientCluster
public abstract static class MockOcientCluster.IdempotentResultSetProvider extends Object
Provides a mechanism for simulating result set production with minimal overhead. Implementations are responsible for ensuring idempotency of the result set retrieval, typically by caching or pre-calculating the results to ensure users can deterministically map a sequenced buffer to a range of rows.

  • Constructor Details

    • IdempotentResultSetProvider

      public IdempotentResultSetProvider()

  • Method Details

    • getIdentifier

      public abstract String getIdentifier()
      Returns an identifier for this result set provider. The identifier should represent the SQL query and any specific conditions or parameters that would affect the result set.

    • getExecuteQueryResponse

      public abstract ClientWireProtocol.ExecuteQueryResponse getExecuteQueryResponse(UUID queryId, ClientWireProtocol.ExecuteQuery req)
      Returns the query optimization result and stream parameters.

    • getMetadataResponse

      public abstract ClientWireProtocol.FetchMetadataResponse getMetadataResponse()
      Returns the metadata for this result set.

    • getResultSetBuffer

      public abstract ByteString getResultSetBuffer(long sequenceNumber)
      Returns the ByteString representing the serialized rows in row-major format. See https://ocient.atlassian.net/wiki/spaces/CON/pages/3511320603/Ocient+Wire+Protocol#Result-Set-Format