logger.log(BasicLevel.DEBUG, "pop child2: " + child2);
}
Expression ret = null;
switch (op) {
case SpeedoQLConstants.OR:
ret = new ConditionalOr((Expression) child1, (Expression) child2);
break;
case SpeedoQLConstants.AND:
ret = new ConditionalAnd((Expression) child1, (Expression) child2);
break;
case SpeedoQLConstants.BITWISEOR: