Examples with GraphQLUnionType graphql.schema.GraphQLUnionType used on opensource projects

Example 1 with GraphQLUnionType

use of graphql.schema.GraphQLUnionType in project graphql-java by graphql-java.

the class ExecutionStrategy method resolveType.

protected GraphQLObjectType resolveType(ExecutionContext executionContext, ExecutionStrategyParameters parameters, GraphQLType fieldType) {
    GraphQLObjectType resolvedType;
    if (fieldType instanceof GraphQLInterfaceType) {
        TypeResolutionParameters resolutionParams = TypeResolutionParameters.newParameters().graphQLInterfaceType((GraphQLInterfaceType) fieldType).field(parameters.getField().get(0)).value(parameters.getSource()).argumentValues(parameters.getArguments()).context(executionContext.getContext()).schema(executionContext.getGraphQLSchema()).build();
        resolvedType = resolveTypeForInterface(resolutionParams);
    } else if (fieldType instanceof GraphQLUnionType) {
        TypeResolutionParameters resolutionParams = TypeResolutionParameters.newParameters().graphQLUnionType((GraphQLUnionType) fieldType).field(parameters.getField().get(0)).value(parameters.getSource()).argumentValues(parameters.getArguments()).context(executionContext.getContext()).schema(executionContext.getGraphQLSchema()).build();
        resolvedType = resolveTypeForUnion(resolutionParams);
    } else {
        resolvedType = (GraphQLObjectType) fieldType;
    }
    return resolvedType;
}

Example 2 with GraphQLUnionType

use of graphql.schema.GraphQLUnionType in project graphql-java by graphql-java.

the class ObjectsImplementInterfaces method isCompatible.

/**
 * @return {@code true} if the specified objectType satisfies the constraintType.
 */
boolean isCompatible(GraphQLOutputType constraintType, GraphQLOutputType objectType) {
    if (isSameType(constraintType, objectType)) {
        return true;
    } else if (constraintType instanceof GraphQLUnionType) {
        return objectIsMemberOfUnion((GraphQLUnionType) constraintType, objectType);
    } else if (constraintType instanceof GraphQLInterfaceType && objectType instanceof GraphQLObjectType) {
        return objectImplementsInterface((GraphQLInterfaceType) constraintType, (GraphQLObjectType) objectType);
    } else if (constraintType instanceof GraphQLList && objectType instanceof GraphQLList) {
        GraphQLOutputType wrappedConstraintType = (GraphQLOutputType) ((GraphQLList) constraintType).getWrappedType();
        GraphQLOutputType wrappedObjectType = (GraphQLOutputType) ((GraphQLList) objectType).getWrappedType();
        return isCompatible(wrappedConstraintType, wrappedObjectType);
    } else if (objectType instanceof GraphQLNonNull) {
        GraphQLOutputType nullableConstraint;
        if (constraintType instanceof GraphQLNonNull) {
            nullableConstraint = (GraphQLOutputType) ((GraphQLNonNull) constraintType).getWrappedType();
        } else {
            nullableConstraint = constraintType;
        }
        GraphQLOutputType nullableObjectType = (GraphQLOutputType) ((GraphQLNonNull) objectType).getWrappedType();
        return isCompatible(nullableConstraint, nullableObjectType);
    } else {
        return false;
    }
}

Example 3 with GraphQLUnionType

use of graphql.schema.GraphQLUnionType in project graphql-java by graphql-java.

the class SchemaGenerator method buildUnionType.

private GraphQLUnionType buildUnionType(BuildContext buildCtx, UnionTypeDefinition typeDefinition) {
    GraphQLUnionType.Builder builder = GraphQLUnionType.newUnionType();
    builder.definition(typeDefinition);
    builder.name(typeDefinition.getName());
    builder.description(schemaGeneratorHelper.buildDescription(typeDefinition, typeDefinition.getDescription()));
    builder.typeResolver(getTypeResolverForUnion(buildCtx, typeDefinition));
    List<UnionTypeExtensionDefinition> extensions = unionTypeExtensions(typeDefinition, buildCtx);
    typeDefinition.getMemberTypes().forEach(mt -> {
        GraphQLOutputType outputType = buildOutputType(buildCtx, mt);
        if (outputType instanceof GraphQLTypeReference) {
            builder.possibleType((GraphQLTypeReference) outputType);
        } else {
            builder.possibleType((GraphQLObjectType) outputType);
        }
    });
    builder.withDirectives(buildDirectives(typeDefinition.getDirectives(), directivesOf(extensions), UNION));
    extensions.forEach(extension -> extension.getMemberTypes().forEach(mt -> {
        GraphQLOutputType outputType = buildOutputType(buildCtx, mt);
        if (!builder.containType(outputType.getName())) {
            if (outputType instanceof GraphQLTypeReference) {
                builder.possibleType((GraphQLTypeReference) outputType);
            } else {
                builder.possibleType((GraphQLObjectType) outputType);
            }
        }
    }));
    return builder.build();
}