| /* |
| * Copyright 2010 Google Inc. |
| * |
| * 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.google.gwt.user.client.ui; |
| |
| import java.util.Collection; |
| |
| /** |
| * Implemented by widgets that pick from a set of values. |
| * <p> |
| * It is up to the implementation to decide (and document) how to behave when |
| * {@link #setValue(Object)} is called with a value that is not in the |
| * acceptable set. For example, throwing an {@link IllegalArgumentException}, or |
| * quietly adding the value to the acceptable set, are both reasonable choices. |
| * |
| * @param <T> the type of value |
| */ |
| public interface HasConstrainedValue<T> extends HasValue<T> { |
| |
| /** |
| * Set the acceptable values. |
| * |
| * @param values the acceptible values |
| */ |
| void setAcceptableValues(Collection<T> values); |
| } |