dubbo DefaultPage 源码

  • 2022-10-20
  • 浏览 (428)

dubbo DefaultPage 代码

文件路径:/dubbo-common/src/main/java/org/apache/dubbo/common/utils/DefaultPage.java

/*
 * 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<T> implements Page<T>, Serializable {

    private static final long serialVersionUID = 1099331838954070419L;

    private final int requestOffset;

    private final int pageSize;

    private final int totalSize;

    private final List<T> data;

    private final int totalPages;

    private final boolean hasNext;

    public DefaultPage(int requestOffset, int pageSize, List<T> 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<T> getData() {
        return data;
    }

    @Override
    public boolean hasNext() {
        return hasNext;
    }
}

相关信息

dubbo 源码目录

相关文章

dubbo AnnotationUtils 源码

dubbo ArrayUtils 源码

dubbo Assert 源码

dubbo AtomicPositiveInteger 源码

dubbo CIDRUtils 源码

dubbo CharSequenceComparator 源码

dubbo ClassHelper 源码

dubbo ClassLoaderResourceLoader 源码

dubbo ClassUtils 源码

dubbo CollectionUtils 源码

0  赞