code: package it.unibz.inf.ontop.iq.node;
  
  import it.unibz.inf.ontop.iq.exception.QueryNodeTransformationException;
  import it.unibz.inf.ontop.iq.transform.node.HomogeneousQueryNodeTransformer;
  import it.unibz.inf.ontop.model.term.ImmutableExpression;
  
  import java.util.Optional;
  
  public interface InnerJoinLikeNode extends CommutativeJoinNode {
  
      @Override
      InnerJoinLikeNode acceptNodeTransformer(HomogeneousQueryNodeTransformer transformer)
              throws QueryNodeTransformationException;
  
      @Override
      InnerJoinLikeNode changeOptionalFilterCondition(Optional<ImmutableExpression> newOptionalFilterCondition);
  }
  