從Code MSDN上下載下來的EFOracleProvider不支持Oracle9i.但是,目前我所使用的還是Oracle9i。為此,對EFOracleProvider修改了以下，以便使其支持Oracle9i.
下面說說具體修改地方.（紅色部分為添加或修改的代碼部分）
一，修改EFOracleProvider
1,修改EFOracleProviderManifest.cs類文件,
internal const string TokenOracle9i = "9i";//add by xray2005
internal const string TokenOracle10g = "10g";
internal const string TokenOracle11g = "11g";
以下兩個地方,不修改也是可以的.但考慮目前我主要是使用9i,所以也就修改成9i了.
private EFOracleVersion _version = EFOracleVersion.Oracle9i; //EFOracleVersion.Oracle11g;
private string _token = TokenOracle9i; //TokenOracle10g;
2,修改EFOracleVersion.cs類文件，如下代碼所示：
namespace EFOracleProvider
{
using System;
/// <summary>
/// This enum describes the current storage version
/// </summary>
internal enum EFOracleVersion
{
Oracle9i = 9, //add by xray2005
/// <summary>
/// Oracle10g
/// </summary>
Oracle10g = 10,
/// <summary>
/// Oracle 11g
/// </summary>
Oracle11g = 11,
// higher versions go here
}
/// <summary>
/// This class is a simple utility class that determines the version from the
/// connection
/// </summary>
internal static class EFOracleVersionUtils
{
/// <summary>
/// Get the version from the connection.
/// </summary>
/// <param name="connection">current connection</param>
/// <returns>version for the current connection</returns>
internal static EFOracleVersion GetStorageVersion(EFOracleConnection connection)
{
string serverVersion = connection.ServerVersion;
if (serverVersion.StartsWith("9."))
{
return EFOracleVersion.Oracle9i; //add by xray2005
}
else if (serverVersion.StartsWith("10."))
{
return EFOracleVersion.Oracle10g;
}
else if (serverVersion.StartsWith("11."))
{
return EFOracleVersion.Oracle11g;
}
throw new ArgumentException("Could not determine storage version; " +
"a valid storage connection or a version hint is required.");
}
internal static string GetVersionHint(EFOracleVersion version)
{
switch (version)
{
case EFOracleVersion.Oracle9i:
return EFOracleProviderManifest.TokenOracle9i; //add by xray2005
case EFOracleVersion.Oracle10g:
return EFOracleProviderManifest.TokenOracle10g;
case EFOracleVersion.Oracle11g:
return EFOracleProviderManifest.TokenOracle11g;
default:
throw new ArgumentException("Could not determine storage version; " +
"a valid storage connection or a version hint is required.");
}
}
internal static EFOracleVersion GetStorageVersion(string versionHint)
{
if (!string.IsNullOrEmpty(versionHint))
{
switch (versionHint)
{
case EFOracleProviderManifest.TokenOracle9i:
return EFOracleVersion.Oracle9i; //add by xray2005
case EFOracleProviderManifest.TokenOracle10g:
return EFOracleVersion.Oracle10g;
case EFOracleProviderManifest.TokenOracle11g:
return EFOracleVersion.Oracle11g;
}
}
throw new ArgumentException("Could not determine storage version; " +
"a valid storage connection or a version hint is required.");
}
internal static bool IsVersionX(EFOracleVersion storageVersion)
{
return storageVersion == EFOracleVersion.Oracle9i || storageVersion == EFOracleVersion.Oracle10g ||
storageVersion == EFOracleVersion.Oracle11g; //add by xray2005
}
}
}
