Tristan Nixon created OPENNLP-776:
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Summary: Model Objects should be Serializable
Key: OPENNLP-776
URL: https://issues.apache.org/jira/browse/OPENNLP-776
Project: OpenNLP
Issue Type: Improvement
Components: Formats
Affects Versions: tools-1.5.3
Reporter: Tristan Nixon
Priority: Minor
Marking model objects (ParserModel, SentenceModel, etc.) as Serializable can
enable a number of features offered by other Java frameworks (my own use case
is described below). You've already got a good mechanism for
(de-)serialization, but it cannot be leveraged by other frameworks without
implementing the Serializable interface. I'm attaching a patch to BaseModel
that implements the methods in the java.io.Externalizable interface as wrappers
to the existing (de-)serialization methods. This simple change can open up a
number of useful opportunities for integrating OpenNLP with other frameworks.
My use case is that I am incorporating OpenNLP into a Spark application. This
requires that components of the system be distributed between the driver and
worker nodes within the cluster. In order to do this, Spark uses Java
serialization API to transmit objects between nodes. This is far more efficient
than instantiating models on each node independently.
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