/// <summary>Deserializes a foreign table.</summary>
/// <remarks>
/// This can only deserialize rows written with layout. (Requires use of <see cref="Flags.WithLayout" /> when
/// serializing.)
/// </remarks>
/// <param name="reader">The reader to read from.</param>
/// <returns>The deserialized table instance.</returns>
public static ITable DeserializeForeignTable(this DataReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
var flags = (Flags)reader.Read7BitEncodedInt32();
if ((flags & Flags.WithLayout) == 0)
{
throw new NotSupportedException(
"For DeserializeForeignX() functions the layout has to be written by the sender! The current decoded data does not contain a layout!");
}
var layout = RowLayout.Load(reader);
var result = MemoryTable.Create(layout);
var count = reader.Read7BitEncodedInt64();
for (long l = 0; l < count; l++)
{
var row = DeserializeData(reader, layout);
result.Insert(row);
}
return(result);
}
/// <summary>Caches the whole table into memory and provides a new ITable instance.</summary>
/// <param name="table">The table.</param>
/// <returns>Returns a new memory table.</returns>
public static MemoryTable ToMemory(this ITable table)
{
Trace.TraceInformation("Copy {0} rows to memory table", table.RowCount);
var result = MemoryTable.Create(table.Layout);
result.LoadTable(table);
return(result);
}
/// <summary>Caches the whole table into memory and provides a new ITable{TStruct} instance.</summary>
/// <typeparam name="TKey">Key identifier type.</typeparam>
/// <typeparam name="TStruct">Row structure type.</typeparam>
/// <param name="table">The table.</param>
/// <returns>Returns a new memory table.</returns>
public static ITable <TKey, TStruct> ToMemory <TKey, TStruct>(this ITable <TKey, TStruct> table)
where TKey : IComparable <TKey>
where TStruct : struct
{
var result = MemoryTable.Create(table.Layout);
result.LoadTable(table);
return(new Table <TKey, TStruct>(result));
}
/// <summary>Caches the whole table into memory and provides a new ITable{TStruct} instance.</summary>
/// <typeparam name="TStruct">Structure type.</typeparam>
/// <param name="table">The table.</param>
/// <returns>Returns a new memory table.</returns>
public static ITable <TStruct> ToMemory <TStruct>(this ITable <TStruct> table)
where TStruct : struct
{
Trace.TraceInformation("Copy {0} rows to memory table", table.RowCount);
var result = MemoryTable.Create(table.Layout);
result.LoadTable(table);
return(new Table <TStruct>(result));
}
/// <summary>Caches the whole table into memory and provides a new ITable instance.</summary>
/// <param name="table">The table.</param>
/// <returns>Returns a new memory table.</returns>
public static MemoryTable ToMemory(this ITable table)
{
if (table == null)
{
throw new ArgumentNullException(nameof(table));
}
Trace.TraceInformation("Copy {0} rows to memory table", table.RowCount);
var result = MemoryTable.Create(table.Layout);
result.LoadTable(table);
return(result);
}
/// <summary>Caches the whole table into memory and provides a new ITable{TStruct} instance.</summary>
/// <typeparam name="TKey">Key identifier type.</typeparam>
/// <typeparam name="TStruct">Row structure type.</typeparam>
/// <param name="table">The table.</param>
/// <returns>Returns a new memory table.</returns>
public static ITable <TKey, TStruct> ToMemory <TKey, TStruct>(this ITable <TKey, TStruct> table)
where TKey : IComparable <TKey>
where TStruct : struct
{
if (table == null)
{
throw new ArgumentNullException(nameof(table));
}
var result = MemoryTable.Create(table.Layout);
result.LoadTable(table);
return(new Table <TKey, TStruct>(result));
}
/// <summary>Caches the whole table into memory and provides a new ITable{TStruct} instance.</summary>
/// <typeparam name="TStruct">Structure type.</typeparam>
/// <param name="table">The table.</param>
/// <returns>Returns a new memory table.</returns>
public static ITable <TStruct> ToMemory <TStruct>(this ITable <TStruct> table)
where TStruct : struct
{
if (table == null)
{
throw new ArgumentNullException(nameof(table));
}
Trace.TraceInformation("Copy {0} rows to memory table", table.RowCount);
var result = MemoryTable.Create(table.Layout);
result.LoadTable(table);
return(new Table <TStruct>(result));
}
/// <inheritdoc />
public override ITable CreateTable(RowLayout layout, TableFlags flags = default)
{
if (layout == null)
{
throw new ArgumentNullException(nameof(layout));
}
if (tables.ContainsKey(layout.Name))
{
throw new InvalidOperationException($"Table '{layout.Name}' already exists!");
}
var table = MemoryTable.Create(layout);
tables[layout.Name] = table;
return(table);
}
/// <inheritdoc/>
public RowCacheBuilder(ITable table)
{
Table = table;
Cache = MemoryTable.Create(table.Layout);
}
