Examples with LanguageTraversal graphql.validation.LanguageTraversal used on opensource projects

Example 1 with LanguageTraversal

use of graphql.validation.LanguageTraversal in project graphql-java by graphql-java.

the class NoFragmentCycles method gatherSpreads.

private List<FragmentSpread> gatherSpreads(FragmentDefinition fragmentDefinition) {
    final List<FragmentSpread> fragmentSpreads = new ArrayList<>();
    DocumentVisitor visitor = new DocumentVisitor() {

        @Override
        public void enter(Node node, List<Node> path) {
            if (node instanceof FragmentSpread) {
                fragmentSpreads.add((FragmentSpread) node);
            }
        }

        @Override
        public void leave(Node node, List<Node> path) {
        }
    };
    new LanguageTraversal().traverse(fragmentDefinition, visitor);
    return fragmentSpreads;
}