jsp - Taglib in Java: tag with array parameter -

how can define tag receives array parameter?

thanks

jstl it, , can too.

i happen have el function example handy, , i'll paste portion of c:foreach definition give idea:

you pass delimited string, if want collection or array, can use this:

<function>   <name>join</name>   <function-class>mypackage.functions</function-class>   <function-signature>string join(java.lang.object, java.lang.string)</function-signature> </function> 

and

/**  * jstl's fn:join works string[].  1 more general.  *   * usage: ${nc:join(values, ", ")}  */ public static string join(object values, string seperator) {     if (values == null)         return null;     if (values instanceof collection<?>)         return stringutils.join((collection<?>) values, seperator);     else if (values instanceof object[])         return stringutils.join((object[]) values, seperator);     else         return values.tostring(); } 

obviously, instead of object input can use array if don't want handle collections well.

here c:foreach definition:

<tag>     <description>         basic iteration tag, accepting many different         collection types , supporting subsetting , other         functionality     </description>     <name>foreach</name>     <tag-class>org.apache.taglibs.standard.tag.rt.core.foreachtag</tag-class>     <tei-class>org.apache.taglibs.standard.tei.foreachtei</tei-class>     <body-content>jsp</body-content>     <attribute>         <description>             collection of items iterate over.         </description>         <name>items</name>         <required>false</required>         <rtexprvalue>true</rtexprvalue>         <type>java.lang.object</type>     </attribute>     ...