content: /*
   * Copyright (C) 2007 The Android Open Source Project
   *
   * 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 android.widget;
  
  /**
   * <p>Defines a filterable behavior. A filterable class can have its data
   * constrained by a filter. Filterable classes are usually
   * {@link android.widget.Adapter} implementations.</p>
   *
   * @see android.widget.Filter
   */
  public interface Filterable {
      /**
       * <p>Returns a filter that can be used to constrain data with a filtering
       * pattern.</p>
       *
       * <p>This method is usually implemented by {@link android.widget.Adapter}
       * classes.</p>
       *
       * @return a filter used to constrain data
       */
      Filter getFilter();
  }
  