001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.hadoop.registry.client.exceptions;
020
021import org.apache.hadoop.classification.InterfaceAudience;
022import org.apache.hadoop.classification.InterfaceStability;
023
024/**
025 * This is a manifestation of the Zookeeper restrictions about
026 * what nodes may act as parents.
027 *
028 * Children are not allowed under ephemeral nodes. This is an aspect
029 * of ZK which isn't directly exposed to the registry API. It may
030 * surface if the registry is manipulated outside of the registry API.
031 */
032@InterfaceAudience.Public
033@InterfaceStability.Evolving
034public class NoChildrenForEphemeralsException extends RegistryIOException {
035  public NoChildrenForEphemeralsException(String path, Throwable cause) {
036    super(path, cause);
037  }
038
039  public NoChildrenForEphemeralsException(String path, String error) {
040    super(path, error);
041  }
042
043  public NoChildrenForEphemeralsException(String path,
044      String error,
045      Throwable cause) {
046    super(path, error, cause);
047  }
048}