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/*
* Copyright 2000-2016 Vaadin Ltd.
*
* 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 com.vaadin.data.provider;
/**
*
* @author Vaadin Ltd
* @since 8.1
*
* @param <T>
* @param <F>
*/
public interface HierarchicalDataProvider<T, F> extends DataProvider<T, F> {
public int getDepth(T item);
public boolean isRoot(T item);
public T getParent(T item);
public boolean isCollapsed(T item);
public boolean hasChildren(T item);
public void setCollapsed(T item, boolean b);
}
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