Examples with NodeTraverser graphql.language.NodeTraverser used on opensource projects

Example 1 with NodeTraverser

use of graphql.language.NodeTraverser in project graphql-java by graphql-java.

the class QueryTraversal method visitImpl.

private void visitImpl(FieldVisitor visitFieldCallback, SelectionSet selectionSet, GraphQLCompositeType type, boolean preOrder) {
    Map<Class<?>, Object> rootVars = new LinkedHashMap<>();
    rootVars.put(QueryTraversalContext.class, new QueryTraversalContext(type, null));
    FieldVisitor noOp = notUsed -> {
    };
    FieldVisitor preOrderCallback = preOrder ? visitFieldCallback : noOp;
    FieldVisitor postOrderCallback = !preOrder ? visitFieldCallback : noOp;
    NodeTraverser nodeTraverser = new NodeTraverser(rootVars, this::childrenOf);
    nodeTraverser.depthFirst(new NodeVisitorImpl(preOrderCallback, postOrderCallback), selectionSet.getSelections());
}