Package opennlp.tools.ml.model
Class HashSumEventStream
- java.lang.Object
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- opennlp.tools.util.AbstractObjectStream<Event>
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- opennlp.tools.ml.model.HashSumEventStream
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- All Implemented Interfaces:
AutoCloseable,ObjectStream<Event>
public class HashSumEventStream extends AbstractObjectStream<Event>
A hash sum basedAbstractObjectStreamimplementation.- See Also:
Event,MessageDigest,AbstractObjectStream
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Constructor Summary
Constructors Constructor Description HashSumEventStream(ObjectStream<Event> eventStream)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description BigIntegercalculateHashSum()Calculates the hash sum of the stream and wraps it into aBigInteger.Eventread()Returns the nextObjectStreamobject.-
Methods inherited from class opennlp.tools.util.AbstractObjectStream
close, reset
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Constructor Detail
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HashSumEventStream
public HashSumEventStream(ObjectStream<Event> eventStream)
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Method Detail
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read
public Event read() throws IOException
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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calculateHashSum
public BigInteger calculateHashSum()
Calculates the hash sum of the stream and wraps it into aBigInteger. Note: The method must be called after the stream is completely consumed.- Returns:
- The calculated hash sum as
BigInteger. - Throws:
IllegalStateException- Thrown if the stream is not consumed completely, completely means that hasNext() returnsfalse.
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