Package graphql.execution

Class SimpleDataFetcherExceptionHandler

java.lang.Object

graphql.execution.SimpleDataFetcherExceptionHandler

All Implemented Interfaces:

DataFetcherExceptionHandler

@PublicApi
public class SimpleDataFetcherExceptionHandler
extends java.lang.Object
implements DataFetcherExceptionHandler

The standard handling of data fetcher error involves placing a ExceptionWhileDataFetching error into the error collection

Constructor Summary

Constructors

Constructor	Description
SimpleDataFetcherExceptionHandler()

Method Summary

Modifier and Type	Method	Description
java.util.concurrent.CompletableFuture<DataFetcherExceptionHandlerResult>	handleException(DataFetcherExceptionHandlerParameters handlerParameters)	When an exception occurs during a call to a DataFetcher then this handler is called to shape the errors that should be placed in the ExecutionResult.getErrors() list of errors.
protected void	logException(ExceptionWhileDataFetching error, java.lang.Throwable exception)	Called to log the exception - a subclass could choose to something different in logging terms
protected java.lang.Throwable	unwrap(java.lang.Throwable exception)	Called to unwrap an exception to a more suitable cause if required.

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleDataFetcherExceptionHandler

public SimpleDataFetcherExceptionHandler()

Method Detail

handleException

public java.util.concurrent.CompletableFuture<DataFetcherExceptionHandlerResult> handleException(DataFetcherExceptionHandlerParameters handlerParameters)

Description copied from interface: DataFetcherExceptionHandler

When an exception occurs during a call to a DataFetcher then this handler is called to shape the errors that should be placed in the ExecutionResult.getErrors() list of errors.

Specified by:

handleException in interface DataFetcherExceptionHandler

Parameters:

handlerParameters - the parameters to this callback

Returns:

a result that can contain custom formatted GraphQLErrors

logException

protected void logException(ExceptionWhileDataFetching error,
                            java.lang.Throwable exception)

Called to log the exception - a subclass could choose to something different in logging terms

Parameters:

error - the graphql error

exception - the exception that happened

unwrap

protected java.lang.Throwable unwrap(java.lang.Throwable exception)

Called to unwrap an exception to a more suitable cause if required.

Parameters:

exception - the exception to unwrap

Returns:

the suitable exception