freemarker.ext.beans
Class IteratorModel
- AdapterTemplateModel, TemplateCollectionModel, TemplateHashModel, TemplateHashModelEx, TemplateModel, TemplateModelIterator, WrapperTemplateModel
public class IteratorModel
A class that adds
TemplateModelIterator
functionality to the
Iterator
interface implementers.
It differs from the
SimpleCollection
in that
it inherits from
BeanModel
, and therefore you can call methods on
it directly, even to the effect of calling
iterator.remove() in
the template.
Using the model as a collection model is NOT
thread-safe, as iterators are inherently not thread-safe.
Further, you can iterate over it only once. Attempts to call the
iterator()
method after it was already driven to the end once will
throw an exception.
$Id: IteratorModel.java,v 1.26 2003/06/03 13:21:32 szegedia Exp $
get , getAdaptedObject , getWrappedObject , hasPlainGetMethod , invokeGenericGet , isEmpty , keySet , keys , size , toString , unwrap , values , wrap |
IteratorModel
public IteratorModel(Iterator iterator,
BeansWrapper wrapper)
Creates a new model that wraps the specified iterator object.
iterator
- the iterator object to wrap into a model.wrapper
- the BeansWrapper
associated with this model.
Every model has to have an associated BeansWrapper
instance. The
model gains many attributes from its wrapper, including the caching
behavior, method exposure level, method-over-item shadowing policy etc.
getAsBoolean
public boolean getAsBoolean()
Returns Iterator.hasNext()
. Therefore, an
iterator that has no more element evaluates to false, and an
iterator that has further elements evaluates to true.