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Home > Forums > Programmers > Web Development > Sun: Servlets and JavaServer Pages (JSP) Forum

Call JSP Bean Dynmically

thread695-1236055
Read More Threads Like This One
jetechie (TechnicalUser)
28 May 06 23:15
I have the following called from a JSP page:

String setI1 = dimA1.getsetI1();
String setI2 = dimA1.getsetI2();
String setI3 = dimA1.getsetI3();
String setI4 = dimA1.getsetI4();

Is there a way I call call these dynically, like in a for loop similiar to this?

for ( int i = 1; i < 5; i++)
{
 String setI + i = dimA1.getsetI + i();
}

I get the following when trying to do this:
Syntax error, insert "AssignmentOperator ArrayInitializer" to complete Expression

Thanks for any advice!
jemminger (Programmer)
29 May 06 0:22
nope - this is one of the benefits of a scripting language like python.

you could perhaps get a similar effect using a Map to store objects with dynamically created keys like "setI" + i, and some clever use of reflection to dynamically call the right method on dimA1

-jeff
www.jeffemminger.com
lost: one sig, last seen here.
Diancecht (Programmer)
29 May 06 4:11
Use an array.

Cheers,
Dian
jetechie (TechnicalUser)
29 May 06 11:06
An array is not going to help me here, because it will treat it as a string.
Diancecht (Programmer)
29 May 06 11:12
huh?

Instead of 5 strings in dim1, define an array of strings.

Cheers,
Dian
jetechie (TechnicalUser)
29 May 06 11:34
Could you provide an example?  I'm not sure how i could get the "dimA1.getsetI1();" to execute from within an array?

Thanks!
JE
Diancecht (Programmer)
29 May 06 12:05
Instead of

CODE

public String getSetI1();

modify your bean

CODE

public String[] getSets();

Cheers,
Dian
jetechie (TechnicalUser)
29 May 06 12:24
Dian,
Currently, my code is like this.  If I remove the following:
public String getsetI1() { return i1; }

How do I get my specific value returned?


---CODE------- (not sure how to mark this as code from teh forum)

package jspBean;
public class dimA {
    
//Indicator 1
String i1;
String i2;

public void setI1( String value )
    {
        i1 = value;
    }

public void setI2( String value )
    {
        i2 = value;
    }

 public String getsetI1() { return i1; }
 public String getsetI2() { return i2; }

}
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