/*
* 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.v7.client.widget.grid.selection;
import java.util.Collection;
import java.util.Collections;
import com.vaadin.client.data.DataSource.RowHandle;
import com.vaadin.v7.client.renderers.Renderer;
import com.vaadin.v7.client.widgets.Grid;
/**
* No-row selection model.
*
* @author Vaadin Ltd
* @since 7.4
*/
public class SelectionModelNone<T> extends AbstractRowHandleSelectionModel<T>
implements SelectionModel.None<T> {
@Override
public boolean isSelected(T row) {
return false;
}
@Override
public Renderer<Boolean> getSelectionColumnRenderer() {
return null;
}
@Override
public void setGrid(Grid<T> grid) {
// noop
}
@Override
public void reset() {
// noop
}
@Override
public Collection<T> getSelectedRows() {
return Collections.emptySet();
}
@Override
protected boolean selectByHandle(RowHandle<T> handle)
throws UnsupportedOperationException {
throw new UnsupportedOperationException(
"This selection model " + "does not support selection");
}
@Override
protected boolean deselectByHandle(RowHandle<T> handle)
throws UnsupportedOperationException {
throw new UnsupportedOperationException(
"This selection model " + "does not support deselection");
}
}