FieldPath.java

/*
 * Copyright [2014] [Christian Loehnert, krampenschiesser@gmail.com]
 * Licensed 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.
 */

package de.ks.validation;

import javax.validation.ElementKind;
import javax.validation.Path;
import java.lang.reflect.Field;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Spliterator;
import java.util.function.Consumer;

/**
 *
 */
public class FieldPath implements Path {
  private final Field field;
  private final Node node;
  private final List<Node> nodes;

  public FieldPath(Field field) {
    this.field = field;
    this.node = new Node() {

      @Override
      public String getName() {
        return field.getName();
      }

      @Override
      public boolean isInIterable() {
        return true;
      }

      @Override
      public Integer getIndex() {
        return 0;
      }

      @Override
      public Object getKey() {
        return field.getName();
      }

      @Override
      public ElementKind getKind() {
        return ElementKind.PROPERTY;
      }

      @Override
      public <T extends Node> T as(Class<T> nodeType) {
        return null;
      }
    };
    nodes = Collections.singletonList(node);
  }

  @Override
  public Iterator<Node> iterator() {
    return nodes.iterator();
  }

  @Override
  public void forEach(Consumer<? super Node> action) {
    nodes.forEach(action);
  }

  @Override
  public Spliterator<Node> spliterator() {
    return nodes.spliterator();
  }
}