@Override
public int _handleToken(ParseContext ctx) throws InvalidQueryException {
Token token = ctx.getTokens()[ctx.getCurrentTokensIndex()];
LogicalOperator logicalOp =
LogicalOperatorFactory.createOperator(token.getValue(), ctx.getPrecedenceLevel());
ctx.updateMaxPrecedence(logicalOp.getPrecedence());
ctx.addExpression(LogicalExpressionFactory.createLogicalExpression(logicalOp));
return 1;
}