本文整理汇总了C#中Table.OpenWriter方法的典型用法代码示例。如果您正苦于以下问题：C# Table.OpenWriter方法的具体用法？C# Table.OpenWriter怎么用？C# Table.OpenWriter使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Table的用法示例。
在下文中一共展示了Table.OpenWriter方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: SELECT
// Table SELECTS //
public static Table SELECT(string Dir, string Name, DataSet Data, FNodeSet Nodes, Predicate Where)
{
Table rs = new Table(Dir, Name, Nodes.Columns);
RecordWriter w = rs.OpenWriter();
FastReadPlan plan = new FastReadPlan(Data, Where, Nodes, w);
plan.Execute();
w.Close();
return rs;
}示例2: GetWriter
public static RecordWriter GetWriter(Workspace Enviro, Schema Columns, HScriptParser.Return_actionContext context)
{
// Get the table name //
string name = context.full_table_name().table_name().IDENTIFIER().GetText();
string db =
(context.full_table_name().database_name() == null)
? "GLOBAL"
: context.full_table_name().database_name().GetText();
// Figure out if we need to append //
bool appendto =
(context.K_INSERT() != null)
? true
: false;
// Global -- Append //
if (context.full_table_name().database_name() == null && appendto)
{
if (Enviro.ChunkHeap.Exists(name))
return Enviro.ChunkHeap[name].OpenWriter();
throw new HScriptCompileException(string.Format("Chunk '{0}' does not exist", name));
}
// Static -- Append //
if (appendto)
{
string fullname = db + "." + name;
if (Enviro.Exists(db, name))
return Enviro.GetStaticTable(db, name).OpenWriter();
throw new HScriptCompileException(string.Format("Table '{0}' does not exist", fullname));
}
// Global -- Create New //
if (context.full_table_name().database_name() == null)
{
RecordSet data = new RecordSet(Columns);
Enviro.ChunkHeap.Reallocate(name, data);
return data.OpenWriter();
}
// Static -- Create New //
string dir = Enviro.Connections[db];
Table t = new Table(dir, name, Columns);
return t.OpenWriter();
}示例3: Extend
public override Table Extend(string Dir, string Name, DataSet Data, FNodeSet ClusterVariables, FNodeSet OtherKeepers, Predicate Where)
{
// Check that the ClusterVariable count matches the internal node set count //
if (ClusterVariables.Count != this._fields.Count)
throw new ArgumentException("The cluster variable count passed does not match the internal cluster variable count");
// Create the selectors //
FNodeSet values = OtherKeepers.CloneOfMe();
FNode n = new FNodeResult(null, new RowClusterCellFunction(this._rule, this._means));
foreach (FNode t in ClusterVariables.Nodes)
{
n.AddChildNode(t.CloneOfMe());
}
values.Add("CLUSTER_ID", n);
// Build a recordset //
Table tablix = new Table(Dir, Name, values.Columns, Data.MaxRecords);
RecordWriter w = tablix.OpenWriter();
// Run a fast select //
FastReadPlan plan = new FastReadPlan(Data, Where, values, w);
w.Close();
return tablix;
}示例4: Extend
public override Table Extend(string Dir, string Name, DataSet Data, FNodeSet Inputs, FNodeSet OtherKeepValues, Predicate Where)
{
// Combine the keep variables and the expected nodes //
FNodeSet nodes = FNodeSet.Union(OtherKeepValues.CloneOfMe(), this.Responses.Expected);
// Open the reader //
RecordReader rr = Data.OpenReader(Where);
// Create the output table and stream //
Table q = new Table(Dir, Name, nodes.Columns);
RecordWriter Output = q.OpenWriter();
// Create a memory structure //
StaticRegister mem = new StaticRegister(Data.Columns);
// Assign both the input set and output set to the memory structure //
nodes.AssignRegister(mem);
Inputs.AssignRegister(mem);
// Run through each record //
while (rr.EndOfData == false)
{
// Assign memory //
mem.Assign(rr.ReadNext());
// Get the array of doubles for the network //
double[] d = Record.ToDouble(Inputs.Evaluate());
// Render each node //
this._Nodes.Render(d);
// Output //
Record t = nodes.Evaluate();
Output.Insert(t);
}
Output.Close();
return q;
}示例5: TestSerializer
public static void TestSerializer()
{
//RecordSet rs = new RecordSet(@"C:\Users\pwdlu_000\Documents\Equus\X_Data\Temp_Database\", "Test1", new Schema("t1 bool, t2 int, t3 double, t4 date, t5 string.16, t6 blob.16"));
Table t = new Table(@"C:\Users\pwdlu_000\Documents\Equus\X_Data\Temp_Database\", "Test2", new Schema("t1 bool, t2 int, t3 double, t4 date, t5 string.16, t6 blob.16"), 500);
RecordWriter w = t.OpenWriter();
for (int i = 0; i < 5000; i++)
{
Cell a = new Cell(true);
Cell b = new Cell(100L);
Cell c = new Cell(3.14D);
Cell d = new Cell(DateTime.Now);
Cell e = new Cell("Hello World1");
Cell f = new Cell(Guid.NewGuid().ToByteArray());
Record r = Record.Stitch(a, b, c, d, e, f);
w.Insert(r);
}
w.Close();
Table x = BinarySerializer.BufferTable(t.Header.Path);
RecordReader uc = x.OpenReader();
while (!uc.EndOfData)
{
Console.WriteLine(uc.ReadNext());
}
//BinarySerializer.FlushRecordSetSafe4(rs);
//Stopwatch tx = Stopwatch.StartNew();
//for (int i = 0; i < 1000; i++)
//{
// //BinarySerializer.FlushRecordSet(rs);
// //BinarySerializer.FlushRecordSetSafe(rs);
// //BinarySerializer.FlushRecordSetSafe2(rs);
// //BinarySerializer.FlushRecordSetSafe3(rs);
// BinarySerializer.FlushRecordSetSafe4(rs);
//}
//tx.Stop();
//Console.WriteLine(tx.Elapsed);
//Stopwatch tx = Stopwatch.StartNew();
//for (int i = 0; i < 1000; i++)
//{
// RecordSet ts = BinarySerializer.BufferRecordSet(rs.Header.Path);
// RecordSet ts = BinarySerializer.BufferRecordSetSafe(rs.Header.Path);
// RecordSet ts = BinarySerializer.BufferRecordSetSafe2(rs.Header.Path);
//}
//tx.Stop();
//Console.WriteLine(tx.Elapsed);
//RecordSet qs = BinarySerializer.BufferRecordSetSafe2(rs.Header.Path);
//qs.Print(10);
//RecordSet ts = BinarySerializer.BufferRecordSetSafe2(rs.Header.Path);
//ts.Print(10);
}