using System;
using System.Collections.Generic;
using System.Linq.Expressions;

namespace JY.DAL.Service
{
    public interface IService<T> where T : class, new()
    {
        T GetById(object id);

        T GetSingle(Expression<Func<T, bool>> predicate);

        List<T> GetList();

        List<T> GetList(Expression<Func<T, bool>> predicate);

        List<T> GetListPaged(int pageIndex, int pageSize, out int totalCount, Expression<Func<T, bool>> predicate = null, string orderBy = null);

        int Insert(T entity);

        int Insert(List<T> entities);

        int Update(T entity);

        int Update(T entity, Expression<Func<T, bool>> whereExpression);

        int Update(Expression<Func<T, T>> columns, Expression<Func<T, bool>> whereExpression);

        int Delete(object id);

        int Delete(Expression<Func<T, bool>> predicate);

        int Delete(List<T> entities);

        bool Any(Expression<Func<T, bool>> predicate);

        int Count(Expression<Func<T, bool>> predicate = null);
    }
}