How can i invole a function whose name I don't know until excecution time

Question

Hello,
I would like to invoke a function in my jsp file but I don't know the name until it gets executed (the user enters part of the function name).
The name of the method is made of "proc_" + something specified during the excecution.
Now, I need to call this function (defined in a JavaBean).... but I don't have a clue of how doing it.
All the functions proc_..... are defined the same way:
public String proc_...... (String params)
Could you tell me how I could do it?

Answer 1

THank you to everybody for your help. I had a look at the tutorial but I must admit it was not that clear to me... I am afraid I did not seem to find something close to what I needed.... I need more help from the experts.
Let me give you more details.
I have some stored procedures called update_<table_name> and create_<table_name>. All those procedures will return a string and will have a string as parameter.
I have a java class called for instance myProc.java. Inside this class, I would like to have something like:
public String[] update(String tableName, String params)
..... call to the stored procedure update_<tableName> with the parameters.
.... get the String as return.
public String[] create(String tableName, String params)
..... call to the stored procedure create_<tableName> with the parameters.
.... get the String as return.
Now, I have a jsp file that will call the class using something like:
String[] res= conn.create(<table_name>, <params>);
COuld you help me on this?
THanks
Elisabeth