--- Neil Benn <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I'm sorry to ask such a basic question but I
> have a use case where I
> receive a collection and want to access an element
> of that collection. I've
> tried several methods to get to an elements,
> iindexing and calling methods
> but to no avail. The curretn thing I'm trying is
> this :
>
> public void testJXContext(){
> List<String> objTest = new
> ArrayList<String>();
> objTest.add("test1");
> objTest.add("test2");
>
> JXPathContext objContext =
> JXPathContext.newContext(objTest);
>
> System.out.println(objContext.getValue("[1]"));
> }
>
> However that give eme stack trace of :
>
> org.apache.commons.jxpath.JXPathException: Invalid
> XPath: '[1]'. Syntax
> error at the beginning of the expression
> at
>
org.apache.commons.jxpath.ri.Parser.parseExpression(Parser.java:60)
> at
>
org.apache.commons.jxpath.ri.JXPathContextReferenceImpl.compileExpression(
> JXPathContextReferenceImpl.java:218)
> at
>
org.apache.commons.jxpath.ri.JXPathContextReferenceImpl.getValue(
> JXPathContextReferenceImpl.java:247)
> at
>
com.ziath.eventregistration.email.test.EMailFormatterTest.testJXContext(
> EMailFormatterTest.java:18)
> <snip>
>
> This is being run through JUnit executing via
> eclipse.
>
> Could someone be so kind as to let me know what the
> syntaz should be here to
> get it to work?
>
> Thanks, in advance for your help.
Hi Neil. Looking at jxpath's
src/test/org/apache/commons/jxpath/ri/model/container/ContainerModelTest.java,
it looks like e.g. "/.[0]" should do what you need.
HTH,
Matt
>
> Cheers,
>
> Neil
>
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