Talend - Read a SQL from .txt and pass variables to it - sql

Question

I need to read an Excel file and excecute a different SQL Query (Oracle) for each row of the Excel, depending on the value that a column ("tipo") of the table has. Also, I need to pass variables to the SQL query that comes from others columns of the same excel.
I have accomplished this with a tjava, creating a string that generates de query.. somthing like this (simplified):
String var1 = input_row.var1;
String var2 = input_row.var2;
String sql_query = ""
if (tipo.toString().equals(String.valueOf("Option1"))) {
query_ev = "select " + var1 + " as variable1, " + var2 + " as var 2 from dual";}
if (tipo.toString().equals(String.valueOf("Option2"))) {
query_ev = "select " + var1+ " from dual";}
context.sql = sql_query;
Nevertheless, my "problem" is that my queries are long, and this method only allows me to put them in the tjava whithout line breaks, so its very difficult to edit them since they remain a "one-row-query" in the tjava.
Is there a way to accomplish the same but having the queries formatted ?
for example, for Option1 having this
select " + var1 + " as variable1, " + var2 + " as var 2
from dual
where
...
I appreciate any clue.

Answer 1

Try this:
query_ev = "select "
" + var1 + " as variable1, " + var2 + " as var 2 "+
from dual";
I am without Java right now to verify but I think this approach could help formatting. Just check that you have enough spaces - don't do this
"as var 2"+"from dual"
which would result in SQL like
"as var 2from dual"