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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.ui.components.grid;
-
- import java.io.Serializable;
- import java.util.Collection;
-
- import com.vaadin.data.provider.DataProvider;
-
- /**
- * A handler for source grid data provider updater for {@link GridDragger}.
- *
- * Used to handle updates to the source grid's {@link DataProvider} after a
- * drop.
- *
- * @author Vaadin Ltd
- * @since
- *
- * @param <T>
- * the bean type
- */
- @FunctionalInterface
- public interface SourceDataProviderUpdater<T> extends Serializable {
-
- /**
- * A NOOP updater that does not do anything for the source data provider.
- */
- static SourceDataProviderUpdater<?> NOOP = (e, d) -> {
- };
-
- /**
- * Called when Items have been dragged.
- *
- * @param dataProvider
- * the data provider for the source grid
- * @param items
- * dragged items.
- */
- public void removeItems(DataProvider<T, ?> dataProvider,
- Collection<T> items);
- }
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