internal Queue(InternalContext context, SetDataMap map)
{
ID = Guid.NewGuid();
Context = context;
Map = map;
CreateAt = DateTime.Now;
}
/// <summary>
/// 释放资源
/// </summary>
/// <param name="disposing">是否释放托管资源</param>
private void Dispose(bool disposing)
{
//释放托管资源
if (disposing)
{
Context = null;
Map = null;
_expBuilder = null;
_sqlBuilder = null;
_procBuilder = null;
LazyAct = null;
}
}
/// <summary>
/// 提供字段插入表达式树的解析
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="map">字段映射</param>
/// <param name="paramList">SQL参数列表</param>
public InsertVisitor(AbsDbProvider dbProvider, SetDataMap map, List<DbParameter> paramList) : base(dbProvider, map, paramList)
{
}
/// <summary>
/// 默认构造器
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="map">字段映射</param>
/// <param name="paramList">SQL参数列表</param>
protected AbsSqlVisitor(AbsDbProvider dbProvider, SetDataMap map, List<DbParameter> paramList)
{
DbProvider = dbProvider;
SetMap = map;
ParamList = paramList;
}
public override WhereVisitor CreateWhereVisitor(SetDataMap map, List<DbParameter> paramList) => new OleDbWhereVisitor(this, map, paramList);
/// <summary>
/// Select筛选字段时表达式树的解析
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="map">字段映射</param>
/// <param name="paramList">SQL参数列表</param>
public OleDbWhereVisitor(AbsDbProvider dbProvider, SetDataMap map, List<DbParameter> paramList) : base(dbProvider, map, paramList)
{
}