UDTFPuller.java

/*
 * 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.aliyun.odps.udf;


public interface UDTFPuller {

  /**
   * 从数据源中获取一条记录。
   * <p>
   * 在某些实现中，该方法返回的 {@link Object[]} 有可能是复用的。
   * </p>
   *
   * @return Object[] 数组中的元素对应于一条记录中的每一列。
   */
  public Object[] getNextRow();
}