Hello all,
I'm trying to implement a synonym engine in Lucene 2.2 based on the code in
the Lucene In Action book. However, I'm getting compile errors:
My Synonym filter looks like this:
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.TokenFilter;
import org.apache.lucene.analysis.Token;
import java.io.IOException;
import java.util.Stack;
public class SynonymFilter extends TokenFilter {
public static final String TOKEN_TYPE_SYNONYM = "SYNONYM";
private Stack synonymStack;
private SynonymEngine engine;
public SynonymFilter(TokenStream in, SynonymEngine engine) {
super(in);
synonymStack = new Stack();
this.engine = engine;
}
....
But "Stack" is not recognized. What am I doing wrong?
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