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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.dubbo.common.utils;
import java.io.Serializable;
import java.util.List;
/**
* The default implementation of {@link Page}
*
* @since 2.7.5
*/
public class DefaultPage implements Page, Serializable {
private static final long serialVersionUID = 1099331838954070419L;
private final int requestOffset;
private final int pageSize;
private final int totalSize;
private final List data;
private final int totalPages;
private final boolean hasNext;
public DefaultPage(int requestOffset, int pageSize, List data, int totalSize) {
this.requestOffset = requestOffset;
this.pageSize = pageSize;
this.data = data;
this.totalSize = totalSize;
int remain = totalSize % pageSize;
this.totalPages = remain > 0 ? (totalSize / pageSize) + 1 : totalSize / pageSize;
this.hasNext = totalSize - requestOffset - pageSize > 0;
}
@Override
public int getOffset() {
return requestOffset;
}
@Override
public int getPageSize() {
return pageSize;
}
@Override
public int getTotalSize() {
return totalSize;
}
@Override
public int getTotalPages() {
return totalPages;
}
@Override
public List getData() {
return data;
}
@Override
public boolean hasNext() {
return hasNext;
}
}