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/*
* Copyright 2000-2021 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;
import com.vaadin.server.SerializableFunction;
/**
* A callback interface for generating custom CSS class names for items.
*
* @param <T>
* the item type
*
* @since 8.0
* @author Vaadin Ltd
*/
@FunctionalInterface
public interface StyleGenerator<T> extends SerializableFunction<T, String> {
/**
* Gets a class name for the {@code item}.
*
* @param item
* the item to get the class name for
* @return the generated class name
*/
@Override
String apply(T item);
}
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