POStatus.java example

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spork-streaming-master
/*
 * 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 org.apache.pig.backend.hadoop.executionengine.physicalLayer;

public class POStatus {
    public static final byte STATUS_OK = 0;

    public static final byte STATUS_NULL = 1;

    public static final byte STATUS_ERR = 2;

    public static final byte STATUS_EOP = 3; // end of processing

    // This is currently only used in communications
    // between ExecutableManager and POStream
    public static final byte STATUS_EOS = 4; // end of Streaming output (i.e. output from streaming binary)

    // successfully processing of a batch, used by accumulative UDFs
    // this is used for accumulative UDFs
    public static final byte STATUS_BATCH_OK = 5;

    // this signals that an accumulative UDF has already finished
    public static final byte STATUS_EARLY_TERMINATION = 6;
}