/* * Licensed to Crate under one or more contributor license agreements. * See the NOTICE file distributed with this work for additional * information regarding copyright ownership. Crate licenses this file * to you under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. You may * obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or * implied. See the License for the specific language governing * permissions and limitations under the License. * * However, if you have executed another commercial license agreement * with Crate these terms will supersede the license and you may use the * software solely pursuant to the terms of the relevant commercial * agreement. */ package io.crate.analyze.symbol; import java.util.function.Consumer; public final class FieldsVisitor extends DefaultTraversalSymbolVisitor<Consumer<? super Field>, Void> { private static final FieldsVisitor FIELDS_VISITOR = new FieldsVisitor(); @Override public Void visitField(Field field, Consumer<? super Field> context) { context.accept(field); return null; } public static void visitFields(Symbol symbolTree, Consumer<? super Field> consumer) { FIELDS_VISITOR.process(symbolTree, consumer); } public static void visitFields(Iterable<? extends Symbol> symbolTrees, Consumer<? super Field> consumer) { for (Symbol symbolTree : symbolTrees) { visitFields(symbolTree, consumer); } } }