Package opennlp.tools.ml.model
Class ChecksumEventStream
- All Implemented Interfaces:
AutoCloseable,ObjectStream<Event>
A
Checksum-based event stream implementation.
Computes the checksum while consuming the event stream.
By default, this implementation will use CRC32C for checksum calculations
as it can use of CPU-specific acceleration instructions at runtime.- See Also:
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Constructor Summary
ConstructorsConstructorDescriptionChecksumEventStream(ObjectStream<Event> eventStream) Initializes anChecksumEventStream. -
Method Summary
Modifier and TypeMethodDescriptionlongCalculates and returns the (current) checksum.read()Returns the nextObjectStreamobject.Methods inherited from class opennlp.tools.util.AbstractObjectStream
close, reset
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Constructor Details
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ChecksumEventStream
Initializes anChecksumEventStream.- Parameters:
eventStream- TheObjectStreamthat provides theEventsamples.
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Method Details
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read
Description copied from interface:ObjectStreamReturns the nextObjectStreamobject. Calling this method repeatedly until it returnsnullwill return each object from the underlying source exactly once.- Specified by:
readin interfaceObjectStream<Event>- Overrides:
readin classAbstractObjectStream<Event>- Returns:
- The next object or
nullto signal that the stream is exhausted. - Throws:
IOException- Thrown if there is an error during reading.
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calculateChecksum
public long calculateChecksum()Calculates and returns the (current) checksum.Note: This should be called once the underlying stream has been (fully) consumed.
- Returns:
- The calculated checksum as
long.
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