Package opennlp.tools.namefind

Class TokenNameFinderFactory

java.lang.Object

opennlp.tools.util.BaseToolFactory

opennlp.tools.namefind.TokenNameFinderFactory

public class TokenNameFinderFactory
extends BaseToolFactory

The factory that provides TokenNameFinder default implementations and resources. That only works if that's the central class used for training/runtime.

Constructor Summary

Constructors

Constructor	Description
TokenNameFinderFactory()	Initializes a TokenNameFinderFactory that provides the default implementation of the resources.
TokenNameFinderFactory(byte[] featureGeneratorBytes, Map<String,Object> resources, SequenceCodec<String> seqCodec)	Initializes a TokenNameFinderFactory instance via given parameters.

Method Summary

Modifier and Type	Method	Description
static TokenNameFinderFactory	create(String subclassName, byte[] featureGeneratorBytes, Map<String,Object> resources, SequenceCodec<String> seqCodec)	Initializes a TokenNameFinderFactory instance via given parameters.
NameContextGenerator	createContextGenerator()	Creates and configures a new NameContextGenerator in a default combination.
AdaptiveFeatureGenerator	createFeatureGenerators()	Creates the AdaptiveFeatureGenerator.
SequenceCodec<String>	createSequenceCodec()
static SequenceCodec<String>	instantiateSequenceCodec(String sequenceCodecImplName)	Initializes a SequenceCodec instance via given parameters.
void	validateArtifactMap()	Validates the parsed artifacts.

Methods inherited from class opennlp.tools.util.BaseToolFactory

create, create, createArtifactMap, createArtifactSerializersMap, createManifestEntries

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TokenNameFinderFactory

public TokenNameFinderFactory()

Initializes a TokenNameFinderFactory that provides the default implementation of the resources. BioCodec will be used as default SequenceCodec.

TokenNameFinderFactory

public TokenNameFinderFactory(byte[] featureGeneratorBytes,
 Map<String,Object> resources,
 SequenceCodec<String> seqCodec)

Initializes a TokenNameFinderFactory instance via given parameters.

Parameters:

featureGeneratorBytes - The byte[] representing the feature generator descriptor.

resources - Additional resources in a mapping.

seqCodec - The SequenceCodec to use.

Method Details

create

public static TokenNameFinderFactory create(String subclassName,
 byte[] featureGeneratorBytes,
 Map<String,Object> resources,
 SequenceCodec<String> seqCodec)
                                     throws InvalidFormatException

Initializes a TokenNameFinderFactory instance via given parameters.

Parameters:

subclassName - The class name used for instantiation. If null, an instance of TokenNameFinderFactory will be returned per default. Otherwise, the ExtensionLoader mechanism is applied to load the requested subclassName.

featureGeneratorBytes - The byte[] representing the feature generator descriptor.

resources - Additional resources in a mapping.

seqCodec - The SequenceCodec to use.

Returns:

A valid TokenNameFinderFactory instance.

Throws:

InvalidFormatException - Thrown if the ExtensionLoader mechanism failed to create the factory associated with subclassName.

validateArtifactMap

public void validateArtifactMap()
                         throws InvalidFormatException

Description copied from class: BaseToolFactory

Validates the parsed artifacts.

Note: Subclasses should generally invoke super.validateArtifactMap at the beginning of this method.

Specified by:

validateArtifactMap in class BaseToolFactory

Throws:

InvalidFormatException - Thrown if validation found invalid states.

createSequenceCodec

public SequenceCodec<String> createSequenceCodec()

Returns:

Initializes and returns a SequenceCodec via its class name configured in a manifest. If that initialization fails (e.g., if no matching class could be loaded for the configured class name at runtime), the currently loaded (default) SequenceCodec is returned.

See Also:

• BioCodec
• BilouCodec

createContextGenerator

public NameContextGenerator createContextGenerator()

Creates and configures a new NameContextGenerator in a default combination.

Returns:

A NameContextGenerator instance.

See Also:

• DefaultNameContextGenerator
• AdaptiveFeatureGenerator

createFeatureGenerators

public AdaptiveFeatureGenerator createFeatureGenerators()

Creates the AdaptiveFeatureGenerator. Usually this is a set of generators contained in AggregatedFeatureGenerator.

Note: The generators are created on every call to this method.

Returns:

The AdaptiveFeatureGenerator or null if there is no descriptor in the model.

Throws:

TokenNameFinderModel.FeatureGeneratorCreationError - Thrown if configuration errors occurred.

IllegalStateException - Thrown if inconsistencies occurred during creation.

instantiateSequenceCodec

public static SequenceCodec<String> instantiateSequenceCodec(String sequenceCodecImplName)
                                                      throws InvalidFormatException

Initializes a SequenceCodec instance via given parameters.

Parameters:

sequenceCodecImplName - The class name used for instantiation. If null, an instance of BioCodec will be returned per default. Otherwise, the ExtensionLoader mechanism is applied to load the requested subclassName.

Returns:

A valid SequenceCodec instance.

Throws:

InvalidFormatException - Thrown if the ExtensionLoader mechanism failed to create the codec associated with sequenceCodecImplName.

See Also:

• SequenceCodec
• BioCodec
• BilouCodec