jsf 1.2 custom function varargs signature

Question

I have a custom JSF function and I need to create a custom function that has a variable length argument list:

the signature is:

public static boolean myFunction(String... args) {
...
}

how do I write the signature of the function in the taglib file?

for example, if I have just one String argument, this works:

<function>
    <function-name>myFunction</function-name>
    <function-class>functions.Functions</function-class>
    <function-signature>boolean myFunction(java.lang.String)</function-signature>
</function>

I have found myself the answer here: http://stackoverflow.com/questions/5033575/using-varargs-in-a-tag-library-descriptor. — Alina Danila, May 03 '12 at 14:54

score 1 · Answer 1 · answered May 03 '12 at 14:01

1

Internally, a vararg argument like String... args is replaced by an array argument (String[] in this case).

Try:

<function-signature>boolean myFunction(java.lang.String[])</function-signature>

answered May 03 '12 at 14:01

Torious

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What errors/problems occur? Perhaps post some more code, I don't think this section is the problem... – Torious May 03 '12 at 14:10
the error is that I pass two arguments or more, and the function takes only one. – Alina Danila May 03 '12 at 14:58

score 0 · Answer 2 · answered Feb 22 '13 at 11:43

It works fine when you take this approach: http://seamframework.org/Documentation/CreatingCustomELFunctions

The idea is to not define the functions explicitly, instead loading them dynamically from a static class into the library. Only problem for me is that Netbeans does not recognize the library this way.

jsf 1.2 custom function varargs signature

2 Answers2