Package org.allGraphQLCases.server

Interface DataFetchersDelegateHumanEdge

All Known Implementing Classes:
DataFetchersDelegateHumanEdgeImpl
public interface DataFetchersDelegateHumanEdge
This interface contains the fata fetchers that are delegated in the bean that the implementation has to provide, when fetching fields for the HumanEdge GraphQL type, as defined in the provided GraphQL schema. Please read the wiki server page for more information on this.
Author:
generated by graphql-java-generator
See Also:

  • Method Details

    • node

      CompletableFuture<STP_Human_STS> node(graphql.schema.DataFetchingEnvironment dataFetchingEnvironment, org.dataloader.DataLoader<UUID,STP_Human_STS> dataLoader, STP_HumanEdge_STS origin)
      This method loads the data for HumanEdge.node.
      For optimization, this method returns a CompletableFuture. This allows to use graphql-java java-dataloader to highly optimize the number of requests to the server.
      The principle is this one: The data loader collects all the data to load, avoid to load several times the same data, and allows parallel execution of the queries, if multiple queries are to be run.
      You can implements this method like this: 
      

      

      Parameters:
      

      dataFetchingEnvironment - The GraphQL DataFetchingEnvironment. It gives you access to the full GraphQL context for this DataFetcher
      

      dataLoader - The DataLoader allows to load several data in one query. It allows to solve the (n+1) queries
            issues, and greatly optimizes the response time.
      
            You'll find more informations here: https://github.com/graphql-java/java-dataloader
      

      origin - The object from which the field is fetch. In other word: the aim of this data fetcher is to fetch the node attribute
    of the origin, which is an instance of {ObjectType {name:HumanEdge, fields:{Field{name:node, type:Human, params:[]},Field{name:cursor, type:String!, params:[]}}, comments ""}. It depends on your data modle, but it typically contains 
    the id to use in the query.
      

      Throws:
      

      NoSuchElementException - This method may return a NoSuchElementException exception. In this case, the exception is trapped 
     by the calling method, and the return is consider as null. This allows to use the Optional.get() method directly, without caring of 
     whether or not there is a value. The generated code will take care of the NoSuchElementException exception.
      

      

      

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      node
      

      STP_Human_STS node(graphql.schema.DataFetchingEnvironment dataFetchingEnvironment,
 STP_HumanEdge_STS origin)
      

      This method loads the data for HumanEdge.node. 
 
      

      

      Parameters:
      

      dataFetchingEnvironment - The GraphQL DataFetchingEnvironment. It gives you access to the full GraphQL context for this DataFetcher
      

      origin - The object from which the field is fetch. In other word: the aim of this data fetcher is to fetch the node attribute
    of the origin, which is an instance of {ObjectType {name:HumanEdge, fields:{Field{name:node, type:Human, params:[]},Field{name:cursor, type:String!, params:[]}}, comments ""}. It depends on your data modle, but it typically contains 
    the id to use in the query.
      

      Throws:
      

      NoSuchElementException - This method may return a NoSuchElementException exception. In this case, the exception is trapped 
     by the calling method, and the return is consider as null. This allows to use the Optional.get() method directly, without caring of 
     whether or not there is a value. The generated code will take care of the NoSuchElementException exception.
      

      

      

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