Uploaded image for project: 'Commons JEXL'
  1. Commons JEXL
  2. JEXL-15

[jexl] Needs definable functions

    XMLWordPrintableJSON

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.0
    • Labels:
      None
    • Environment:

      Operating System: other
      Platform: Other

    • Bugzilla Id:
      31186

      Description

      Currently, in Jexl, the only way to add a functionality is to define a variable.
      Typically this is done in a separate environment... e.g. in jelly's j:new, j:set or...

      Using this, one can define, say, "a" then invoke "a.doSomething(withThat)".

      It would be nice to allow adding methods, e.g. "doSomething" to be invoked without any object.
      This way I could just say "doSomething".

      Examples of usage include:

      • add some mathematical functions to make jexl full featured mathematically (e.g. "abs", "exp",
        "atan")
      • add some "general purpose utilitites" (e.g. "tokenize(aString)", "toString(xx)", or
        "relativeUrl(baseUrl, relPath)")
      • thereby become more compatible with JSP (i've been told)

      This should promote general usage of such functions availability.
      In some situations this would help a lot. For example in maven where I too often still see
      srcFile="${baseDIr+pathToResource}" which prevents any overridability.
      (e.g. the cvs-usage.xml page in the xdoc plugin)

      paul

        Attachments

        1. JEXL-15.patch
          20 kB
          Henri Biestro

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              polx Paul Libbrecht
            • Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: