TreeTagger for Java is a Java wrapper around the popular TreeTagger package by Helmut Schmid. It was written with a focus on platform-independence and easy integration into applications. It is written in Java 5 and has been tested on OS X, Ubuntu Linux, and Windows.

Code example

package org.annolab.tt4j;

import static java.util.Arrays.asList;

public class Example {
	public static void main(String[] args) throws Exception {
		// Point TT4J to the TreeTagger installation directory. The executable is expected
		// in the "bin" subdirectory - in this example at "/opt/treetagger/bin/tree-tagger"
		System.setProperty("treetagger.home", "/opt/treetagger");
		TreeTaggerWrapper tt = new TreeTaggerWrapper<String>();
		try {
			tt.setModel("/opt/treetagger/models/english.par:iso8859-1");
			tt.setHandler(new TokenHandler<String>() {
				public void token(String token, String pos, String lemma) {
					System.out.println(token + "\t" + pos + "\t" + lemma);
				}
			});
			tt.process(asList(new String[] { "This", "is", "a", "test", "." }));
		}
		finally {
			tt.destroy();
		}
	}
}

More documentation can be found in the wiki.

Changes between versions are recorded in the change log.

The latest version of TT4J is now available via Maven Central. If you use Maven as your build tool, then you can add uimaFIT as a dependency in your pom.xml file:

<dependency>
  <groupId>org.annolab.tt4j</groupId>
  <artifactId>org.annolab.tt4j</artifactId>
  <version>1.1.0</version>
</dependency>

License

The TreeTagger package, which is wrapped by TT4J, may only be used according to the TreeTagger license terms. TreeTagger for Java itself is provided under the Lesser GNU Public License (LGPL) without any warranty.