The example below integrates GraphQL Java with Spring transaction management to ensure each query/mutation is executed in a transaction (similar to request-scoped transactions for RESTful APIs) so as to ensure consistency when different loaders are executed. This is done by providing a custom ExecutionStrategy which starts a transaction before executing the query/mutation and commits it afterwards. In order for this to work properly, it is necessary that for a single query all loaders are executed in sequential order on the same thread.
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