UDTFCollector.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;

/**
 * 从{@link UDTF}数据源收集数据
 * 通常 {@link UDTF#forward(Object...)}会把每一行数据传入{@link UDTFCollector}
 */
public interface UDTFCollector extends DataCollector {

  /**
   * 其它类（{@link UDTF}）会调用此方法，以收集每一行数据
   *
   * @param args
   *     需要收集的输入行
   */
  public void collect(Object[] args);
}