/*
* Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package freemarker.test.templatesuite.models;
import java.util.Iterator;
import freemarker.template.SimpleSequence;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;
/**
* A little bridge class that subclasses the new SimpleList
* and still implements the deprecated TemplateListModel
*/
public class LegacyList extends SimpleSequence {
private Iterator iterator;
/**
* Resets the cursor to the beginning of the list.
*/
public synchronized void rewind() {
iterator = null;
}
/**
* @return true if the cursor is at the beginning of the list.
*/
public synchronized boolean isRewound() {
return (iterator == null);
}
/**
* @return true if there is a next element.
*/
public synchronized boolean hasNext() {
if (iterator == null) {
iterator = list.listIterator();
}
return iterator.hasNext();
}
/**
* @return the next element in the list.
*/
public synchronized TemplateModel next() throws TemplateModelException {
if (iterator == null) {
iterator = list.listIterator();
}
if (iterator.hasNext()) {
return (TemplateModel) iterator.next();
} else {
throw new TemplateModelException("No more elements.");
}
}
}