Class GraphQLTypeCollectingVisitor

java.lang.Object

graphql.schema.GraphQLTypeVisitorStub

graphql.schema.impl.GraphQLTypeCollectingVisitor

All Implemented Interfaces:

GraphQLTypeVisitor

public class GraphQLTypeCollectingVisitor
extends GraphQLTypeVisitorStub

Field Summary

Fields

Modifier and Type	Field	Description
private final Map<String, GraphQLNamedType>	indirectStrongReferences
private final Map<String, GraphQLNamedType>	result

Constructor Summary

Constructors

Constructor	Description
GraphQLTypeCollectingVisitor()

Method Summary

Modifier and Type	Method	Description
private void	assertTypeUniqueness(GraphQLNamedType type, Map<String, GraphQLNamedType> result)
private void	assertUniqueTypeObjects(GraphQLNamedType type, GraphQLType existingType)
private Map<String, GraphQLNamedType>	fixDanglingReplacedTypes(Map<String, GraphQLNamedType> visitedTypes)	It's possible for certain schema edits to create a situation where a field / arg / input field had a type reference, then it got replaced with an actual strong reference and then the schema gets edited such that the only reference to that type is the replaced strong reference.
com.google.common.collect.ImmutableMap<String, GraphQLNamedType>	getResult()
private boolean	isNotTypeReference(String name)
private void	save(String name, GraphQLNamedType type)
private <T> void	saveIndirectStrongReference(Supplier<GraphQLType> typeSupplier)
TraversalControl	visitGraphQLAppliedDirectiveArgument(GraphQLAppliedDirectiveArgument node, TraverserContext<GraphQLSchemaElement> context)
TraversalControl	visitGraphQLArgument(GraphQLArgument node, TraverserContext<GraphQLSchemaElement> context)
TraversalControl	visitGraphQLEnumType(GraphQLEnumType node, TraverserContext<GraphQLSchemaElement> context)
TraversalControl	visitGraphQLFieldDefinition(GraphQLFieldDefinition node, TraverserContext<GraphQLSchemaElement> context)
TraversalControl	visitGraphQLInputObjectField(GraphQLInputObjectField node, TraverserContext<GraphQLSchemaElement> context)
TraversalControl	visitGraphQLInputObjectType(GraphQLInputObjectType node, TraverserContext<GraphQLSchemaElement> context)
TraversalControl	visitGraphQLInterfaceType(GraphQLInterfaceType node, TraverserContext<GraphQLSchemaElement> context)
TraversalControl	visitGraphQLObjectType(GraphQLObjectType node, TraverserContext<GraphQLSchemaElement> context)
TraversalControl	visitGraphQLScalarType(GraphQLScalarType node, TraverserContext<GraphQLSchemaElement> context)
TraversalControl	visitGraphQLUnionType(GraphQLUnionType node, TraverserContext<GraphQLSchemaElement> context)

Methods inherited from class GraphQLTypeVisitorStub

visitGraphQLAppliedDirective, visitGraphQLDirective, visitGraphQLEnumValueDefinition, visitGraphQLList, visitGraphQLNonNull, visitGraphQLType, visitGraphQLTypeReference

Methods inherited from class Object

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

Methods inherited from interface GraphQLTypeVisitor

changeNode, deleteNode, insertAfter, insertBefore, visitBackRef, visitGraphQLCompositeType, visitGraphQLDirectiveContainer, visitGraphQLFieldsContainer, visitGraphQLInputFieldsContainer, visitGraphQLInputType, visitGraphQLModifiedType, visitGraphQLNullableType, visitGraphQLOutputType, visitGraphQLUnmodifiedType

Field Details

result

private final Map<String, GraphQLNamedType> result

indirectStrongReferences

private final Map<String, GraphQLNamedType> indirectStrongReferences

Constructor Details

GraphQLTypeCollectingVisitor

public GraphQLTypeCollectingVisitor()

Method Details

visitGraphQLEnumType

public TraversalControl visitGraphQLEnumType(GraphQLEnumType node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLEnumType in interface GraphQLTypeVisitor

Overrides:

visitGraphQLEnumType in class GraphQLTypeVisitorStub

visitGraphQLScalarType

public TraversalControl visitGraphQLScalarType(GraphQLScalarType node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLScalarType in interface GraphQLTypeVisitor

Overrides:

visitGraphQLScalarType in class GraphQLTypeVisitorStub

visitGraphQLObjectType

public TraversalControl visitGraphQLObjectType(GraphQLObjectType node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLObjectType in interface GraphQLTypeVisitor

Overrides:

visitGraphQLObjectType in class GraphQLTypeVisitorStub

visitGraphQLInputObjectType

public TraversalControl visitGraphQLInputObjectType(GraphQLInputObjectType node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLInputObjectType in interface GraphQLTypeVisitor

Overrides:

visitGraphQLInputObjectType in class GraphQLTypeVisitorStub

visitGraphQLInterfaceType

public TraversalControl visitGraphQLInterfaceType(GraphQLInterfaceType node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLInterfaceType in interface GraphQLTypeVisitor

Overrides:

visitGraphQLInterfaceType in class GraphQLTypeVisitorStub

visitGraphQLUnionType

public TraversalControl visitGraphQLUnionType(GraphQLUnionType node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLUnionType in interface GraphQLTypeVisitor

Overrides:

visitGraphQLUnionType in class GraphQLTypeVisitorStub

visitGraphQLFieldDefinition

public TraversalControl visitGraphQLFieldDefinition(GraphQLFieldDefinition node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLFieldDefinition in interface GraphQLTypeVisitor

Overrides:

visitGraphQLFieldDefinition in class GraphQLTypeVisitorStub

visitGraphQLInputObjectField

public TraversalControl visitGraphQLInputObjectField(GraphQLInputObjectField node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLInputObjectField in interface GraphQLTypeVisitor

Overrides:

visitGraphQLInputObjectField in class GraphQLTypeVisitorStub

visitGraphQLArgument

public TraversalControl visitGraphQLArgument(GraphQLArgument node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLArgument in interface GraphQLTypeVisitor

Overrides:

visitGraphQLArgument in class GraphQLTypeVisitorStub

visitGraphQLAppliedDirectiveArgument

public TraversalControl visitGraphQLAppliedDirectiveArgument(GraphQLAppliedDirectiveArgument node,
 TraverserContext<GraphQLSchemaElement> context)

Specified by:

visitGraphQLAppliedDirectiveArgument in interface GraphQLTypeVisitor

Overrides:

visitGraphQLAppliedDirectiveArgument in class GraphQLTypeVisitorStub

saveIndirectStrongReference

private <T> void saveIndirectStrongReference(Supplier<GraphQLType> typeSupplier)

isNotTypeReference

private boolean isNotTypeReference(String name)

save

private void save(String name,
 GraphQLNamedType type)

assertTypeUniqueness

private void assertTypeUniqueness(GraphQLNamedType type,
 Map<String, GraphQLNamedType> result)

assertUniqueTypeObjects

private void assertUniqueTypeObjects(GraphQLNamedType type,
 GraphQLType existingType)

getResult

public com.google.common.collect.ImmutableMap<String, GraphQLNamedType> getResult()

fixDanglingReplacedTypes

private Map<String, GraphQLNamedType> fixDanglingReplacedTypes(Map<String, GraphQLNamedType> visitedTypes)

It's possible for certain schema edits to create a situation where a field / arg / input field had a type reference, then it got replaced with an actual strong reference and then the schema gets edited such that the only reference to that type is the replaced strong reference. This edge case means that the replaced reference can be missed if it's the only way to get to that type because this visitor asks for the children as original type, e.g. the type reference and not the replaced reference.

Parameters:

visitedTypes - the types collected by this visitor

Returns:

a fixed up map where the only