Package org.apache.commons.jelly.tags.core

Class InvokeStaticTag

java.lang.Object
org.apache.commons.jelly.TagSupport
org.apache.commons.jelly.tags.core.InvokeStaticTag
All Implemented Interfaces:
Tag, ArgTagParent
public class InvokeStaticTag extends TagSupport implements ArgTagParent
A Tag which can invoke a static method on a class, without an instance of the class being needed.

Like the InvokeTag, this tag can take a set of arguments using the ArgTag.

The following attributes are required:

  • var - The variable to assign the return of the method call to
  • method - The name of the static method to invoke
  • className - The name of the class containing the static method
Version:
$Revision: 155420 $
Author:
Robert McIntosh

  • Constructor Details

    • InvokeStaticTag

      public InvokeStaticTag()

  • Method Details

    • setVar

      public void setVar(String var)
      Sets the name of the variable exported by this tag
      Parameters:
      var - The variable name

    • setExceptionVar

      public void setExceptionVar(String var)
      Sets the name of a variable that exports the exception thrown by the method's invocation (if any)

    • setMethod

      public void setMethod(String methodName)
      Sets the name of the method to invoke
      Parameters:
      methodName - The method name

    • setClassName

      public void setClassName(String className)
      Sets the fully qualified class name containing the static method
      Parameters:
      className - The name of the class

    • addArgument

      public void addArgument(Class type, Object value)
      Adds an argument to supply to the method
      Specified by:
      addArgument in interface ArgTagParent
      Parameters:
      type - The Class type of the argument
      value - The value of the argument

    • doTag

      public void doTag(XMLOutput output) throws JellyTagException
      Description copied from interface: Tag
      Evaluates this tag after all the tags properties have been initialized.
      Specified by:
      doTag in interface Tag
      Throws:
      JellyTagException

    • loadClass

      protected Class loadClass() throws ClassNotFoundException
      Loads the class using either the class loader which loaded me or the current threads context class loader
      Throws:
      ClassNotFoundException

    • createLoadClassFailedException

      protected JellyTagException createLoadClassFailedException(Exception e)
      Factory method to create a new JellyTagException instance from a given failure exception
      Parameters:
      e - is the exception which occurred attempting to load the class
      Returns:
      JellyTagException