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import static com.goldencode.p2j.persist.orm.FQLParserTokenTypes.WHERE;

import java.io.StringReader;

import java.util.Iterator;

import java.util.logging.Level;

import com.goldencode.ast.Aast;

import com.goldencode.ast.AstWalkListener;

import com.goldencode.p2j.persist.orm.FQLAst;

import com.goldencode.p2j.persist.orm.FQLLexer;

import com.goldencode.p2j.persist.orm.FQLParser;

import antlr.RecognitionException;

import antlr.TokenStreamException;

public class ASTIteratorTest

{

   public static void main(String[] args)

   {

      FQLParser parser = new FQLParser(new FQLLexer(new StringReader("select tt1.recid from tt1 where true")));

      try

      {

         parser.statement();

      }

      catch (RecognitionException | TokenStreamException e)

      {

         e.printStackTrace();

      }

      AstWalkListener listener = new AstWalkListener()

      {

         @Override

         public void nextChild(Aast ast, int index) { }

         @Override

         public void descent(Aast ast) { }

         @Override

         public void ascent(Aast ast) { }

      };

      FQLAst root = (FQLAst) parser.getAST();

      FQLAst where = (FQLAst) root.getImmediateChild(WHERE, null);

      FQLAst child = (FQLAst) where.getFirstChild();

      Iterator<Aast> iter = child.iterator(0, listener);

      while (iter.hasNext())

      {

         System.out.println(iter.next());

      }

   }

}