Package org.apache.taglibs.standard.lang.jstl

Interface VariableResolver

  • All Known Implementing Classes:
    JSTLVariableResolver
    public interface VariableResolver

    This class is used to customize the way the evaluator resolves variable references. For example, instances of this class can implement their own variable lookup mechanisms, or introduce the notion of "implicit variables" which override any other variables. An instance of this class should be passed to the evaluator's constructor.

    Whenever the evaluator is invoked, it is passed a "context" Object from the application. For example, in a JSP environment, the "context" is a PageContext. That context object is eventually passed to this class, so that this class has a context in which to resolve variables.

    Version:
    $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: kchung $
    Author:
    Nathan Abramson - Art Technology Group

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      java.lang.Object resolveVariable​(java.lang.String pName, java.lang.Object pContext)
      Resolves the specified variable within the given context.

    • Method Detail

      • resolveVariable

        java.lang.Object resolveVariable​(java.lang.String pName,
                                 java.lang.Object pContext)
                          throws ELException
        Resolves the specified variable within the given context. Returns null if the variable is not found.
        Throws:
        ELException