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/*
 * Copyright 2016 the original author or authors.
 *
 * 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 io.springlets.data.web.datatables;

import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;

/**
 * Extends the {@link PageRequest} value object to create {@link Pageable}
 * instances based on the paging parameters sent by the datatables component.
 * This way you can use this information to create Spring Data queries.
 * 
 * For instance, datatables works with row positions, not with page numbers.
 * See {@link https://datatables.net/manual/server-side}
 * 
 * @author Cèsar Ordiñana at http://www.disid.com[DISID Corporation S.L.]
 */
public class DatatablesPageable extends PageRequest {

  private static final long serialVersionUID = -5222098249548875453L;

  public DatatablesPageable(Pageable pageable) {
    super(pageable.getPageNumber() / pageable.getPageSize(), pageable.getPageSize(),
        pageable.getSort());
  }

}