org.wicketstuff.ItemsNavigationStrategy Maven / Gradle / Ivy
/**
* Copyright 2012 Vineet Semwal
*
* 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 org.wicketstuff;
import org.apache.wicket.markup.repeater.DefaultItemReuseStrategy;
import org.apache.wicket.markup.repeater.IItemFactory;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.model.IModel;
import java.util.Iterator;
/**
* this strategy supports addition of new items without the need to re-render the view .
* on re-render all items are removed and items for first page are created again
*
* used with {@link org.wicketstuff.navigator.AjaxItemsNavigator}
* or {@link org.wicketstuff.navigator.AjaxScrollEventBehaviorBase}
*
* 1)all children are removed and children of first page are created again on re-render
* 2) new children for next page is created in {@link org.wicketstuff.QuickViewBase#addItemsForNextPage()}
*
*
* earlier it was used as Reuse.ITEMSNAVIGATION
*
* @author Vineet Semwal
*/
public class ItemsNavigationStrategy extends AbstractItemsNavigationStrategy {
/**
* Returns an iterator over items that will be added to the view. The iterator needs to return
* all the items because the old ones are removed prior to the new ones added.
*
* @param type of Item
* @param factory implementation of IItemFactory
* @param newModels iterator over models for items
* @param existingItems iterator over child items
* @return iterator over items that will be added after all the old items are moved.
*/
@Override
public Iterator> getItems(IItemFactory factory, Iterator> newModels, Iterator> existingItems) {
return DefaultItemReuseStrategy.getInstance().getItems(factory, newModels, existingItems);
}
@Override
public long getPageCreatedOnRender() {
return 0;
}
}