content: /**
   * Copyright The Apache Software Foundation
   *
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with this
   * work for additional information regarding copyright ownership. The ASF
   * 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.
   */
  package com.alibaba.wasp.meta;
  
  import org.apache.hadoop.hbase.client.Result;
  
  import java.io.IOException;
  
  /**
   * Implementations 'visit' a catalog table row.
   */
  public interface FMetaVisitor {
    /**
     * Visit the catalog table row.
     * 
     * @param r A row from catalog table
     * @return True if we are to proceed scanning the table, else false if we are
     *         to stop now.
     */
    public boolean visit(final Result r) throws IOException;
  }
  