88 lines
2.6 KiB
C#
88 lines
2.6 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Reflection;
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using System.Data.Common;
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using CYQ.Data.Cache;
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using System.IO;
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namespace CYQ.Data
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{
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internal partial class SybaseDal : DalBase
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{
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public SybaseDal(ConnObject co)
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: base(co)
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{
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}
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internal static Assembly GetAssembly()
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{
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object ass = DistributedCache.Local.Get("Sybase_Assembly");
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if (ass == null)
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{
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string name = string.Empty;
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if (File.Exists(AppConst.AssemblyPath + "Sybase.AdoNet2.AseClient.dll"))
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{
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name = "Sybase.AdoNet2.AseClient";
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}
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else if (File.Exists(AppConst.AssemblyPath + "Sybase.AdoNet4.AseClient.dll"))
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{
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name = "Sybase.AdoNet4.AseClient";
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}
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else
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{
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name = "Can't find the Sybase.AdoNet2.AseClient.dll";
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Error.Throw(name);
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}
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ass = Assembly.Load(name);
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DistributedCache.Local.Set("Sybase_Assembly", ass, 10080);
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}
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return ass as Assembly;
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}
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protected override DbProviderFactory GetFactory()
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{
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object factory = DistributedCache.Local.Get("Sybase_Factory");
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if (factory == null)
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{
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Assembly ass = GetAssembly();
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factory = ass.CreateInstance("Sybase.Data.AseClient.AseClientFactory");
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if (factory == null)
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{
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throw new System.Exception("Can't Create AseClientFactory in Sybase.AdoNet2.AseClient");
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}
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else
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{
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DistributedCache.Local.Set("Sybase_Factory", factory, 10080);
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}
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}
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return factory as DbProviderFactory;
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}
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protected override bool IsExistsDbName(string dbName)
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{
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try
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{
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IsRecordDebugInfo = false || AppDebug.IsContainSysSql;
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bool result = ExeScalar("select 1 from master..sysdatabases where [name]='" + dbName + "'", false) != null;
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IsRecordDebugInfo = true;
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return result;
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}
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catch
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{
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return true;
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}
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}
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}
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internal partial class SybaseDal
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{
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protected override string GetUVPSql(string type)
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{
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return "SELECT name as TableName,'' as Description FROM sysobjects where type='" + type + "' order by name";
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}
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}
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}
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