/// <summary>
/// Retrieves information about indexes on a table.
/// </summary>
/// <param name="sesid">The session to use.</param>
/// <param name="tableid">The table to retrieve index information about.</param>
/// <param name="indexname">The name of the index to retrieve information about.</param>
/// <param name="result">Filled in with information about indexes on the table.</param>
/// <param name="infoLevel">The type of information to retrieve.</param>
/// <returns>An error if the call fails.</returns>
public int JetGetTableIndexInfo(
JET_SESID sesid,
JET_TABLEID tableid,
string indexname,
out JET_INDEXCREATE result,
JET_IdxInfo infoLevel)
{
TraceFunctionCall();
int err;
switch (infoLevel)
{
case Microsoft.Isam.Esent.Interop.Windows7.Windows7IdxInfo.CreateIndex:
case Microsoft.Isam.Esent.Interop.Windows7.Windows7IdxInfo.CreateIndex2:
case Microsoft.Isam.Esent.Interop.Windows8.Windows8IdxInfo.InfoCreateIndex3:
break;
default:
throw new ArgumentException(string.Format("{0} is not a valid value JET_IdxInfo for this JET_INDEXCREATE overload."));
}
if (this.Capabilities.SupportsWindows8Features)
{
{
int bufferSize = 10 * Marshal.SizeOf(typeof(NATIVE_INDEXCREATE3));
IntPtr unmanagedBuffer = Marshal.AllocHGlobal(bufferSize);
try
{
// var nativeIndexcreate = new NATIVE_INDEXCREATE3();
// nativeIndexcreate.cbStruct = checked((uint)bufferSize);
infoLevel = Windows8IdxInfo.InfoCreateIndex3;
err = Err(NativeMethods.JetGetTableIndexInfoW(
sesid.Value,
tableid.Value,
indexname,
unmanagedBuffer,
(uint)bufferSize,
(uint)infoLevel));
NATIVE_INDEXCREATE3 nativeIndexcreate = (NATIVE_INDEXCREATE3)Marshal.PtrToStructure(unmanagedBuffer, typeof(NATIVE_INDEXCREATE3));
result = new JET_INDEXCREATE();
result.SetAllFromNativeIndexCreate(ref nativeIndexcreate);
}
finally
{
Marshal.FreeHGlobal(unmanagedBuffer);
}
}
}
else
{
result = null;
err = Err((int)JET_err.FeatureNotAvailable);
}
return(err);
}
/// <summary>
/// Retrieves information about indexes on a table.
/// </summary>
/// <param name="sesid">The session to use.</param>
/// <param name="indexname">The name of the index.</param>
/// <param name="result">Filled in with information about indexes on the table.</param>
/// <param name="infoLevel">The type of information to retrieve.</param>
protected override void GetIndexInfo(
JET_SESID sesid,
string indexname,
out string result,
JET_IdxInfo infoLevel)
{
Api.JetGetTableIndexInfo(sesid, this.tableid, indexname, out result, infoLevel);
}
/// <summary>
/// Retrieves information about indexes on a table.
/// </summary>
/// <param name="sesid">The session to use.</param>
/// <param name="indexname">The name of the index.</param>
/// <param name="result">Filled in with information about indexes on the table.</param>
/// <param name="infoLevel">The type of information to retrieve.</param>
protected override void GetIndexInfo(
JET_SESID sesid,
string indexname,
out string result,
JET_IdxInfo infoLevel)
{
Api.JetGetIndexInfo(sesid, this.dbid, this.tablename, indexname, out result, infoLevel);
}
/// <summary>
/// Retrieves information about indexes on a table.
/// </summary>
/// <param name="sesid">The session to use.</param>
/// <param name="tableid">The table to retrieve index information about.</param>
/// <param name="indexname">The name of the index.</param>
/// <param name="result">Filled in with information about indexes on the table.</param>
/// <param name="infoLevel">The type of information to retrieve.</param>
/// <returns>true if there was no error, false if the index wasn't found. Throws for other Jet errors.</returns>
public static bool TryJetGetTableIndexInfo(
JET_SESID sesid,
JET_TABLEID tableid,
string indexname,
out JET_INDEXID result,
JET_IdxInfo infoLevel)
{
int err = Impl.JetGetTableIndexInfo(sesid, tableid, indexname, out result, infoLevel);
if ((JET_err)err == JET_err.IndexNotFound)
{
return(false);
}
Api.Check(err);
return(true);
}
/// <summary>
/// Retrieves information about indexes on a table.
/// </summary>
/// <param name="sesid">The session to use.</param>
/// <param name="indexname">The name of the index.</param>
/// <param name="result">Filled in with information about indexes on the table.</param>
/// <param name="infoLevel">The type of information to retrieve.</param>
protected abstract void GetIndexInfo(
JET_SESID sesid,
string indexname,
out string result,
JET_IdxInfo infoLevel);
/// <summary>
/// Retrieves information about indexes on a table.
/// </summary>
/// <param name="sesid">The session to use.</param>
/// <param name="tableid">The table to retrieve index information about.</param>
/// <param name="indexname">The name of the index.</param>
/// <param name="result">Filled in with information about indexes on the table.</param>
/// <param name="infoLevel">The type of information to retrieve.</param>
/// <returns>true if there was no error, false if the index wasn't found. Throws for other Jet errors.</returns>
public static bool TryJetGetTableIndexInfo(
JET_SESID sesid,
JET_TABLEID tableid,
string indexname,
out JET_INDEXID result,
JET_IdxInfo infoLevel)
{
int err = Impl.JetGetTableIndexInfo(sesid, tableid, indexname, out result, infoLevel);
if ((JET_err)err == JET_err.IndexNotFound)
{
return false;
}
Api.Check(err);
return true;
}
/// <summary>
/// Retrieves information about indexes on a table.
/// </summary>
/// <param name="sesid">The session to use.</param>
/// <param name="tableid">The table to retrieve index information about.</param>
/// <param name="indexname">The name of the index.</param>
/// <param name="result">Filled in with information about indexes on the table.</param>
/// <param name="infoLevel">The type of information to retrieve.</param>
public static void JetGetTableIndexInfo(
JET_SESID sesid,
JET_TABLEID tableid,
string indexname,
out JET_INDEXLIST result,
JET_IdxInfo infoLevel)
{
Api.Check(Impl.JetGetTableIndexInfo(sesid, tableid, indexname, out result, infoLevel));
}
/// <summary>
/// Retrieves information about indexes on a table.
/// </summary>
/// <param name="sesid">The session to use.</param>
/// <param name="dbid">The database to use.</param>
/// <param name="tablename">The name of the table to retrieve index information about.</param>
/// <param name="indexname">The name of the index to retrieve information about.</param>
/// <param name="result">Filled in with information about indexes on the table.</param>
/// <param name="infoLevel">The type of information to retrieve.</param>
public static void JetGetIndexInfo(
JET_SESID sesid,
JET_DBID dbid,
string tablename,
string indexname,
out JET_INDEXLIST result,
JET_IdxInfo infoLevel)
{
Api.Check(Impl.JetGetIndexInfo(sesid, dbid, tablename, indexname, out result, infoLevel));
}
