Java分页查询入参包装类

public interface IPageable {

    int getCurrentPage();

    default int getOffsetPage() {
        return (getCurrentPage() - 1) * getItemsPerPage();
    }

    default int getOffset() {
        return getOffsetPage();
    }

    void setCurrentPage(int currentPage);

    int getItemsPerPage();

    void setItemsPerPage(int itemsPerPage);

    default int getLimit() {
        return getItemsPerPage();
    }
}

public class Pageable implements IPageable {

    private int currentPage;

    private int itemsPerPage;

    @Override
    public int getCurrentPage() {
        return currentPage;
    }

    @Override
    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }

    @Override
    public int getItemsPerPage() {
        return itemsPerPage;
    }

    @Override
    public void setItemsPerPage(int itemsPerPage) {
        this.itemsPerPage = itemsPerPage;
    }
}

public class PageableJO<JO> extends Pageable {

    JO filter;

    public JO getFilter() {
        return filter;
    }

    public void setFilter(JO filter) {
        this.filter = filter;
    }
}