code: /*
   * Copyright 2015 recommenders.net.
   *
   * 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 net.recommenders.rival.split.splitter;
  
  import net.recommenders.rival.core.DataModelIF;
  import net.recommenders.rival.core.TemporalDataModelIF;
  
  /**
   * Interface for the data splitter.
   *
   * @author <a href="http://github.com/abellogin">Alejandro</a>
   *
   * @param <U> generic type for users
   * @param <I> generic type for items
   */
  public interface Splitter<U, I> {
  
      /**
       * Splits the data.
       *
       * @param data The data.
       * @return The split data model.
       */
      DataModelIF<U, I>[] split(DataModelIF<U, I> data);
  
      /**
       * Splits temporal data.
       *
       * @param data The data.
       * @return The split data model.
       */
      TemporalDataModelIF<U, I>[] split(TemporalDataModelIF<U, I> data);
  }
  