Package org.hyperledger.fabric.gateway.spi

Interface Query

  • public interface Query
    Defines a query and provides methods to evaluate the query on specific peers.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      java.util.Map<org.hyperledger.fabric.sdk.Peer,​org.hyperledger.fabric.sdk.ProposalResponse> evaluate​(java.util.Collection<org.hyperledger.fabric.sdk.Peer> peers)
      Evaluate the query on several peers.
      org.hyperledger.fabric.sdk.ProposalResponse evaluate​(org.hyperledger.fabric.sdk.Peer peer)
      Evaluate the query on a specific peer.

    • Method Detail

      • evaluate

        org.hyperledger.fabric.sdk.ProposalResponse evaluate​(org.hyperledger.fabric.sdk.Peer peer)
        Evaluate the query on a specific peer.
        Parameters:
        peer - A peer.
        Returns:
        The query result from the peer.
        Throws:
        GatewayRuntimeException - if misconfiguration of system state prevents queries from being sent.

      • evaluate

        java.util.Map<org.hyperledger.fabric.sdk.Peer,​org.hyperledger.fabric.sdk.ProposalResponse> evaluate​(java.util.Collection<org.hyperledger.fabric.sdk.Peer> peers)
        Evaluate the query on several peers.
        Parameters:
        peers - Peers to query.
        Returns:
        The query results from the peers.
        Throws:
        GatewayRuntimeException - if misconfiguration of system state prevents queries from being sent.