package edu.uci.ics.asterix.aql.expression;

import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
import edu.uci.ics.asterix.aql.expression.visitor.IAqlPlusExpressionVisitor;
import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
import edu.uci.ics.asterix.common.exceptions.AsterixException;
import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;

public class MetaVariableExpr extends VariableExpr {

    @Override
    public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
        return ((IAqlPlusExpressionVisitor<R, T>) visitor).visitMetaVariableExpr(this, arg);
    }

    @Override
    public <T> void accept(IAqlVisitorWithVoidReturn<T> visitor, T arg) throws AsterixException {
        throw new NotImplementedException();
    }

    public boolean getIsNewVar() {
        return false;
    }

    @Override
    public Kind getKind() {
        return Kind.METAVARIABLE_EXPRESSION;
    }
}