修改EFOracleProvider——让EFOracleProvider支持9i

EFOracleProvider的最后发布时间是2008年，但是居然不支持Oracle9i。

用Oracle官方的组件吧，两个问题：

1. 组件好大啊，好几百兆

2. 最重要在于，一直在beta 

但是经理说要将俺们的技术升级到2010，用Entity Framework+MVC+JQuery

那就上吧。

第一个问题，就是支持9i的问题——声明一下，这个解决办法是在网上搜来的。写在这里只是为了汇总。

为了让EFOracleProvider支持9i,需要修改3个类：EFOracleVersion、EFOracleProviderManifest、EFOracleVersionUtils（在EFOracleVersion.cs中）

1. 在enum EFOracleVersion中添加一个enum值，如下

         /// <summary>

        /// Oracle9i
        /// </summary>
        Oracle9i = 9,

 2. 在EFOracleProviderManifest中添加一个const值

         internal const string TokenOracle9i = "9i";

3. 修改EFOracleVersionUtils类，如下，

    /// <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;
            }
            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;

                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;

                    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;
        }

这样，EFOracleProvider就能支持Oracle9i了。

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 修改过的EFOracleProvider下载

 dll下载

源码下载