graphql.execution.batched

Class BatchedExecutionStrategy

java.lang.Object

graphql.execution.ExecutionStrategy

graphql.execution.batched.BatchedExecutionStrategy

public class BatchedExecutionStrategy
extends ExecutionStrategy

Execution Strategy that minimizes calls to the data fetcher when used in conjunction with DataFetchers that have DataFetcher.get(DataFetchingEnvironment) methods annotated with Batched. See the javadoc comment on Batched for a more detailed description of batched data fetchers.

The strategy runs a BFS over terms of the query and passes a list of all the relevant sources to the batched data fetcher.

Normal DataFetchers can be used, however they will not see benefits of batching as they expect a single source object at a time.

Field Summary

Fields inherited from class graphql.execution.ExecutionStrategy

fieldCollector, valuesResolver

Constructor Summary

Constructors

Constructor and Description
BatchedExecutionStrategy()

Method Summary

Methods

Modifier and Type	Method and Description
ExecutionResult	execute(ExecutionContext executionContext, GraphQLObjectType parentType, java.lang.Object source, java.util.Map<java.lang.String,java.util.List<Field>> fields)

Methods inherited from class graphql.execution.ExecutionStrategy

completeValue, completeValueForEnum, completeValueForList, completeValueForScalar, getFieldDef, resolveField, resolveType, resolveType

Methods inherited from class java.lang.Object

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

Constructor Detail

BatchedExecutionStrategy

public BatchedExecutionStrategy()

Method Detail

execute

public ExecutionResult execute(ExecutionContext executionContext,
                      GraphQLObjectType parentType,
                      java.lang.Object source,
                      java.util.Map<java.lang.String,java.util.List<Field>> fields)

Specified by:

execute in class ExecutionStrategy