graphql.execution

Class AsyncSerialExecutionStrategy

java.lang.Object

graphql.execution.ExecutionStrategy

graphql.execution.AbstractAsyncExecutionStrategy

graphql.execution.AsyncSerialExecutionStrategy

public class AsyncSerialExecutionStrategy
extends AbstractAsyncExecutionStrategy

Async non-blocking execution, but serial: only one field at the the time will be resolved. See AsyncExecutionStrategy for a non serial (parallel) execution of every field.

Field Summary

Fields inherited from class graphql.execution.ExecutionStrategy

dataFetcherExceptionHandler, fieldCollector, valuesResolver

Constructor Summary

Constructors

Constructor and Description
AsyncSerialExecutionStrategy()
AsyncSerialExecutionStrategy(DataFetcherExceptionHandler exceptionHandler)

Method Summary

Modifier and Type	Method and Description
java.util.concurrent.CompletableFuture<ExecutionResult>	execute(ExecutionContext executionContext, ExecutionStrategyParameters parameters) This is the entry point to an execution strategy.

Methods inherited from class graphql.execution.AbstractAsyncExecutionStrategy

handleResults

Methods inherited from class graphql.execution.ExecutionStrategy

assertNonNullFieldPrecondition, assertNonNullFieldPrecondition, completeField, completeValue, completeValueForEnum, completeValueForList, completeValueForList, completeValueForObject, completeValueForScalar, createExecutionStepInfo, fetchField, getFieldDef, getFieldDef, handleNonNullException, mkNameForPath, mkNameForPath, mkNameForPath, resolveField, resolveFieldWithInfo, resolveFieldWithInfoToNull, resolveType, toIterable, toIterable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AsyncSerialExecutionStrategy

public AsyncSerialExecutionStrategy()

AsyncSerialExecutionStrategy

public AsyncSerialExecutionStrategy(DataFetcherExceptionHandler exceptionHandler)

Method Detail

execute

public java.util.concurrent.CompletableFuture<ExecutionResult> execute(ExecutionContext executionContext,
                                                                       ExecutionStrategyParameters parameters)
                                                                throws NonNullableFieldWasNullException

Description copied from class: ExecutionStrategy

This is the entry point to an execution strategy. It will be passed the fields to execute and get values for.

Specified by:

execute in class ExecutionStrategy

Parameters:

executionContext - contains the top level execution parameters

parameters - contains the parameters holding the fields to be executed and source object

Returns:

a promise to an ExecutionResult

Throws:

NonNullableFieldWasNullException - in the future if a non null field resolves to a null value