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  /*
   * Copyright (c) 2003 The Visigoth Software Society. All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * 3. The end-user documentation included with the redistribution, if
  *    any, must include the following acknowledgement:
  *       "This product includes software developed by the
  *        Visigoth Software Society (http://www.visigoths.org/)."
  *    Alternately, this acknowledgement may appear in the software itself,
  *    if and wherever such third-party acknowledgements normally appear.
  *
  * 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the 
  *    project contributors may be used to endorse or promote products derived
  *    from this software without prior written permission. For written
  *    permission, please contact visigoths@visigoths.org.
  *
  * 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
  *    nor may "FreeMarker" or "Visigoth" appear in their names
  *    without prior written permission of the Visigoth Software Society.
  *
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED.  IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  * ====================================================================
  *
  * This software consists of voluntary contributions made by many
  * individuals on behalf of the Visigoth Software Society. For more
  * information on the Visigoth Software Society, please see
  * http://www.visigoths.org/
  */
 
 package freemarker.ext.beans;
 
 import java.util.List;
 

A special case of BeanModel that can wrap Java collections and that implements the freemarker.template.TemplateCollectionModel in order to be usable in a <foreach> block.

Author(s):
Attila Szegedi
Version:
$Id: CollectionModel.java,v 1.22 2003/06/03 13:21:32 szegedia Exp $
 
 public class CollectionModel
 extends
     StringModel
 implements
 {
     static final ModelFactory FACTORY =
         new ModelFactory()
         {
             public TemplateModel create(Object objectObjectWrapper wrapper)
             {
                 return new CollectionModel((Collection)object, (BeansWrapper)wrapper);
             }
         };


    
Creates a new model that wraps the specified collection object.

Parameters:
collection the collection 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.
 
     public CollectionModel(Collection collectionBeansWrapper wrapper)
     {
        super(collectionwrapper);
    }

    
Retrieves the i-th object from the collection, wrapped as a TemplateModel.

Throws:
freemarker.template.TemplateModelException if the index is out of bounds, or the underlying collection is not a List.
    public TemplateModel get(int index)
    throws
    {
        // Don't forget to keep getSupportsIndexedAccess in sync with this!
        if ( instanceof List)
        {
            try
            {
                return wrap(((List)).get(index));
            }
            catch(IndexOutOfBoundsException e)
            {
                return null;
//                throw new TemplateModelException("Index out of bounds: " + index);
            }
        }
        else
        {
            throw new TemplateModelException("Underlying collection is not a list, it's " + .getClass().getName());
        }
    }
    
    
Tells if get(int) will always fail for this object. As this object implements freemarker.template.TemplateSequenceModel, get(int) should always work, but due to a design flaw, for non-java.util.List wrapped objects get(int) will always fail. This method exists to ease working this problem around.
    public boolean getSupportsIndexedAccess() {
        return  instanceof List;
    }
    
    {
        return new IteratorModel(((Collection)).iterator(), );
    }
    public int size()
    {
        return ((Collection)).size();
    }
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