How to use

ConfigurablePOSContextGenerator

in

opennlp.tools.postag

private void testContextGeneration(int cacheSize) {
 AdaptiveFeatureGenerator fg = new TokenFeatureGenerator();
 ConfigurablePOSContextGenerator cg = new ConfigurablePOSContextGenerator(cacheSize, fg);
 String[] tokens = new String[] {"a", "b", "c", "d", "e"};
 String[] tags = new String[] {"t_a", "t_b", "t_c", "t_d", "t_e"};
 cg.getContext(0, tokens, tags, null);
 Assert.assertEquals(1, cg.getContext(0, tokens, tags, null).length);
 Assert.assertEquals("w=a", cg.getContext(0, tokens, tags, null)[0]);
 Assert.assertEquals("w=b", cg.getContext(1, tokens, tags, null)[0]);
 Assert.assertEquals("w=c", cg.getContext(2, tokens, tags, null)[0]);
 Assert.assertEquals("w=d", cg.getContext(3, tokens, tags, null)[0]);
 Assert.assertEquals("w=e", cg.getContext(4, tokens, tags, null)[0]);
}

public POSContextGenerator getPOSContextGenerator(int cacheSize) {
 if (artifactProvider != null) {
  Properties manifest = (Properties) artifactProvider.getArtifact("manifest.properties");
  String version = manifest.getProperty("OpenNLP-Version");
  if (Version.parse(version).getMinor() < 8) {
   return new DefaultPOSContextGenerator(cacheSize, getDictionary());
  }
 }
 
 return new ConfigurablePOSContextGenerator(cacheSize, createFeatureGenerators());
}

public POSContextGenerator getPOSContextGenerator(int cacheSize) {
 if (artifactProvider != null) {
  Properties manifest = (Properties) artifactProvider.getArtifact("manifest.properties");
  String version = manifest.getProperty("OpenNLP-Version");
  if (Version.parse(version).getMinor() < 8) {
   return new DefaultPOSContextGenerator(cacheSize, getDictionary());
  }
 }
 return new ConfigurablePOSContextGenerator(cacheSize, createFeatureGenerators());
}

public POSContextGenerator getPOSContextGenerator(int cacheSize) {
 if (artifactProvider != null) {
  Properties manifest = (Properties) artifactProvider.getArtifact("manifest.properties");
  String version = manifest.getProperty("OpenNLP-Version");
  if (Version.parse(version).getMinor() < 8) {
   return new DefaultPOSContextGenerator(cacheSize, getDictionary());
  }
 }
 
 return new ConfigurablePOSContextGenerator(cacheSize, createFeatureGenerators());
}