Package org.apache.commons.jxpath

Interface Function

All Known Implementing Classes:
ConstructorFunction, MethodFunction
public interface Function
Extension function interface. Extension functions are grouped into Functions objects, which are installed on JXPathContexts using the JXPathContext.setFunctions() call.

The Function interface can be implemented directly. However, most of the time JXPath's built-in implementations should suffice. See ClassFunctions and PackageFunctions.

  • Method Summary

    Modifier and Type
    Method
    Description
    Object
    invoke(ExpressionContext context, Object[] parameters)
    Computes the value of the function.

  • Method Details

    • invoke

      Object invoke(ExpressionContext context, Object[] parameters)
      Computes the value of the function. Each implementation of Function is responsible for conversion of supplied parameters to the required argument types.
      Parameters:
      context - can be used to acquire the context in which the function is being evaluted.
      parameters - function arguments
      Returns:
      Object result