Interface GraphQlEntryPoint.Interceptor

Enclosing class:

GraphQlEntryPoint

public static interface GraphQlEntryPoint.Interceptor

Interceptor of a GraphQL resolver entry point.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	GraphQlEntryPoint.Interceptor.Chain	Invocation chain for GraphQL entry point.

Method Summary

Modifier and Type	Method	Description
Object	proceed(InterceptionContext interceptionContext, GraphQlEntryPoint.Interceptor.Chain chain, graphql.schema.DataFetchingEnvironment environment)	Method to implement interceptor logic.

Method Details

proceed

Object proceed(InterceptionContext interceptionContext,
 GraphQlEntryPoint.Interceptor.Chain chain,
 graphql.schema.DataFetchingEnvironment environment)
        throws Exception

Method to implement interceptor logic.

Parameters:

interceptionContext - context with invocation metadata

chain - invocation chain, interceptor must call (DataFetchingEnvironment)

environment - GraphQL Java data fetching environment; the GraphQL context contains ExecutionContext.HELIDON_CONTEXT_KEY and ExecutionContext.EXECUTION_CONTEXT_KEY

Returns:

resolver result; follows GraphQL Java resolver semantics, so null is a valid result for nullable GraphQL fields

Throws:

Exception - in case the invocation fails, or the interceptor needs to stop processing with an exception