Package net.morimekta.providence.graphql

Interface GQLFieldProvider<Message extends net.morimekta.providence.PMessage<Message>>

  • Type Parameters:
    Message - The message type.
    All Known Implementing Classes:
    FieldFieldProvider, InputValueFieldProvider, TypeFieldProvider
    public interface GQLFieldProvider<Message extends net.morimekta.providence.PMessage<Message>>
    Interface for functionality that provide field values based on a source message and a GQL field.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      net.morimekta.providence.descriptor.PMessageDescriptor<Message> getDescriptor()
      Get the type descriptor this mutator is for.
      java.util.Collection<net.morimekta.providence.descriptor.PField<Message>> getFields()
      Get the set of fields that can be mutated with this mutator.
      java.lang.Object provide​(Message message, net.morimekta.providence.descriptor.PField<Message> field, GQLField selection)
      Mutate the message according to the field selection.

    • Method Detail

      • getDescriptor

        net.morimekta.providence.descriptor.PMessageDescriptor<Message> getDescriptor()
        Get the type descriptor this mutator is for. This may not be an interface type.
        Returns:
        The message type being mutated.

      • getFields

        java.util.Collection<net.morimekta.providence.descriptor.PField<Message>> getFields()
        Get the set of fields that can be mutated with this mutator.
        Returns:
        Collection of mutating fields.

      • provide

        java.lang.Object provide​(Message message,
                         net.morimekta.providence.descriptor.PField<Message> field,
                         GQLField selection)
        Mutate the message according to the field selection. The field selection will represent a single field in the base message, and will be called for each requested field.
        Parameters:
        message - The base message builder to be mutated.
        field - The source field requested.
        selection - The field selection to be filled or changed.
        Returns:
        The mutated value for the field.