Properly evaluate placeholders in materialised view from JdbcTemplate - spring

Question

Here is my case:
I have the following sql file (my_view.sql - containing the definition of a materialised view, Oracle dialect) returning all the products having expire_date > sysdate:
CREATE MATERIALIZED VIEW my_view
BUILD DEFERRED
REFRESH COMPLETE ON DEMAND
AS
SELECT *
FROM product
WHERE expire_date > sysdate
Now in the application code I have a Spring Service using this view:
#Service
public class MyService {
private final JdbcTemplate jdbcTemplate;
#Value("${expire_date}")
private String expireDate;// property will be injected at runtime by Spring, but how to pass this string to be evaluated in the sql script through jdbcTemplate
public MyService(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
public void callMaterialisedView() {
try (Connection zs1DbConnection =
jdbcTemplate.getDataSource().getConnection()) {
jdbcTemplate.execute("BEGIN dbms_mview.refresh('my_view', 'c');END;");
}
}
}
My question: Is it possible to make expire_date configurable and pass it from the application code as a placeholder to the sql script?
Making it configurable is easy - i can use Spring #Value annotation to inject a concrete value to my application code. What I miss is how (if possible at all) to pass this value from jdbcTemplate to the script to be evaluated properly.
In the final variant, I imagine the script to look like (expire_date being passed from jdbcTempalte):
CREATE MATERIALIZED VIEW my_view
BUILD DEFERRED
REFRESH COMPLETE ON DEMAND
AS
SELECT *
FROM product
WHERE expire_date > to_date(${expire_date})

Answer 1

The materialized view does not accept a parameter, but you can create a dummy table with one column and insert/update your parameter value in table.
It's an alternative solution.
In MV SQL you can write something like " where expire_date > (select dt_col from dummy_tab) " as below:
CREATE MATERIALIZED VIEW my_view
BUILD DEFERRED
REFRESH COMPLETE ON DEMAND
AS
SELECT *
FROM product
WHERE expire_date > (select dt_col from dummy_tab);