freemarker.ext.beans
Class ArrayModel

java.lang.Object
  freemarker.ext.beans.BeanModel
      freemarker.ext.beans.ArrayModel

All Implemented Interfaces:

WrapperTemplateModel, AdapterTemplateModel, TemplateCollectionModel, TemplateHashModel, TemplateHashModelEx, TemplateModel, TemplateSequenceModel

public class ArrayModel
extends BeanModel
implements TemplateCollectionModel, TemplateSequenceModel

A class that will wrap an arbitrary array into TemplateCollectionModel and TemplateSequenceModel interfaces. It supports element retrieval through the array[index] syntax and can be iterated as a list.

Version:

$Id: ArrayModel.java,v 1.26 2003/06/03 13:21:32 szegedia Exp $

Author:

Attila Szegedi

Field Summary

Fields inherited from class freemarker.ext.beans.BeanModel

object, wrapper

Fields inherited from interface freemarker.template.TemplateModel

NOTHING

Constructor Summary

ArrayModel(java.lang.Object array, BeansWrapper wrapper)
Creates a new model that wraps the specified array object.

Method Summary

TemplateModel	get(int index) Retrieves the i-th template model in this sequence.
boolean	isEmpty() Tells whether the model is empty.
TemplateModelIterator	iterator() Retrieves a template model iterator that is used to iterate over the elements in this collection.
int	size()

Methods inherited from class freemarker.ext.beans.BeanModel

get, getAdaptedObject, getWrappedObject, hasPlainGetMethod, invokeGenericGet, keys, keySet, toString, unwrap, values, wrap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ArrayModel

public ArrayModel(java.lang.Object array,
                  BeansWrapper wrapper)

Creates a new model that wraps the specified array object.

Parameters:

array - the array 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.

Throws:

java.lang.IllegalArgumentException - if the passed object is not a Java array.

Method Detail

iterator

public TemplateModelIterator iterator()

Description copied from interface: TemplateCollectionModel

Retrieves a template model iterator that is used to iterate over the elements in this collection.

Specified by:

iterator in interface TemplateCollectionModel

get

public TemplateModel get(int index)
                  throws TemplateModelException

Description copied from interface: TemplateSequenceModel

Retrieves the i-th template model in this sequence.

Specified by:

get in interface TemplateSequenceModel

Returns:

the item at the specified index, or null if the index is out of bounds. Note that a null value is interpreted by FreeMarker as "variable does not exist", and accessing a missing variables is usually considered as an error in the FreeMarker Template Language, so the usage of a bad index will not remain hidden.

Throws:

TemplateModelException

size

public int size()

Specified by:

size in interface TemplateHashModelEx

Specified by:

size in interface TemplateSequenceModel

Overrides:

size in class BeanModel

Returns:

the number of key/value mappings in the hash.

isEmpty

public boolean isEmpty()

Description copied from class: BeanModel

Tells whether the model is empty. It is empty if either the wrapped object is null, or it is a Boolean with false value.

Specified by:

isEmpty in interface TemplateHashModel

Overrides:

isEmpty in class BeanModel