freemarker.ext.misc
Class IsHash

java.lang.Object
  |
  +--freemarker.ext.misc.IsHash
All Implemented Interfaces:
TemplateMethodModel2, TemplateModel

public final class IsHash
extends java.lang.Object
implements TemplateMethodModel2

Determines whether a given model is an instance of a TemplateHashModel.

Note:
IsHash is a singleton instance. Use the getInstance() method to retrieve instances of this model.

Since:
1.8
Version:
$Id: IsHash.java,v 1.2 2003/11/17 13:06:24 run2000 Exp $
Author:
Nicholas Cull

Method Summary
 TemplateModel exec(java.util.List arguments)
          Executes a method call.
static IsHash getInstance()
          Return a singleton instance of this class.
 boolean isEmpty()
          Is the object empty?
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

getInstance

public static IsHash getInstance()
Return a singleton instance of this class.
Returns:
a new IsHash object

isEmpty

public boolean isEmpty()
                throws TemplateModelException
Is the object empty?
Specified by:
isEmpty in interface TemplateModel
Returns:
true if this object is empty, otherwise false

exec

public TemplateModel exec(java.util.List arguments)
                   throws TemplateModelException
Executes a method call. Arguments are passed as a List of TemplateModel objects.
Specified by:
exec in interface TemplateMethodModel2
Parameters:
arguments - a List of TemplateModel objects containing the values of the arguments passed to the method.
Returns:
the TemplateModel produced by the method, or null.