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GraphqL Java

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package graphql.schema;

import graphql.PublicApi;
import graphql.util.TraversalControl;
import graphql.util.TraverserContext;

import java.util.Collections;
import java.util.List;

import static graphql.schema.SchemaElementChildrenContainer.newSchemaElementChildrenContainer;

/**
 * A GraphQLSchema can be viewed as a graph of GraphQLSchemaElement. Every node (vertex) of this graph implements
 * this interface.
 */
@PublicApi
public interface GraphQLSchemaElement {

    default List getChildren() {
        return Collections.emptyList();
    }

    default SchemaElementChildrenContainer getChildrenWithTypeReferences() {
        return newSchemaElementChildrenContainer().build();
    }

    default GraphQLSchemaElement withNewChildren(SchemaElementChildrenContainer newChildren) {
        return this;
    }

    TraversalControl accept(TraverserContext context, GraphQLTypeVisitor visitor);
}