T
- public static class Utils.ChecksumHashCodeHelper<T> extends RichOutputFormat<T>
Constructor and Description |
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ChecksumHashCodeHelper(String id) |
Modifier and Type | Method and Description |
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void |
close()
Method that marks the end of the life-cycle of parallel output instance.
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void |
configure(Configuration parameters)
Configures this output format.
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void |
open(int taskNumber,
int numTasks)
Opens a parallel instance of the output format to store the result of its parallel instance.
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void |
writeRecord(T record)
Adds a record to the output.
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getRuntimeContext, setRuntimeContext
public ChecksumHashCodeHelper(String id)
public void configure(Configuration parameters)
OutputFormat
This method is always called first on a newly instantiated output format.
parameters
- The configuration with all parameters.public void open(int taskNumber, int numTasks)
OutputFormat
When this method is called, the output format it guaranteed to be configured.
taskNumber
- The number of the parallel instance.numTasks
- The number of parallel tasks.public void writeRecord(T record) throws IOException
OutputFormat
When this method is called, the output format it guaranteed to be opened.
record
- The records to add to the output.IOException
- Thrown, if the records could not be added due to an I/O problem.public void close() throws IOException
OutputFormat
When this method is called, the output format it guaranteed to be opened.
IOException
- Thrown, if the input could not be closed properly.Copyright © 2014–2024 The Apache Software Foundation. All rights reserved.