public Statement EmitColumnHandler(TableVar tableVar, TableVarColumn column, EmitMode mode)
{
AttachStatement statement = new AttachStatement();
statement.MetaData = MetaData;
statement.OperatorName = _operator.OperatorName;
statement.EventSourceSpecifier = new ColumnEventSourceSpecifier(tableVar.Name, column.Name);
statement.EventSpecifier = new EventSpecifier();
statement.EventSpecifier.EventType = _eventType;
return(statement);
}
private int GetNumericScale(TableVarColumn column)
{
DAE.Language.D4.Tag tag = column.GetMetaDataTag("DAEDataReader.NumericScale");
if (tag != null)
{
return(System.Convert.ToInt32(tag.Value));
}
else
{
return(DefaultNumericScale);
}
}
private bool GetIsAutoIncrement(TableVarColumn column)
{
DAE.Language.D4.Tag tag = column.GetMetaDataTag("DAEDataReader.IsAutoIncrement");
if (tag != null)
{
return(tag.Value.ToLower() == "true");
}
else
{
return(false);
}
}
private bool GetIsLong(TableVarColumn column, Schema.DataTypes dataTypes)
{
DAE.Language.D4.Tag tag = column.GetMetaDataTag("DAEDataReader.IsLong");
if (tag != null)
{
return(tag.Value.ToLower() == "true");
}
else
{
return(GetNativeType(column.DataType, column, dataTypes) == typeof(byte[]));
}
}
private int GetColumnSize(TableVarColumn column)
{
DAE.Language.D4.Tag tag = column.GetMetaDataTag("DAEDataReader.ColumnSize");
if (tag != null)
{
return(System.Convert.ToInt32(tag.Value));
}
else
{
return(System.Int32.MaxValue);
}
}
public static Type GetNativeType(IDataType dataType, TableVarColumn column, Schema.DataTypes dataTypes)
{
DAE.Language.D4.Tag tag = column.GetMetaDataTag("DAEDataReader.NativeType");
if (tag != Tag.None)
{
return(Type.GetType(tag.Value, true, true));
}
else
{
return(GetNativeType(dataType, dataTypes));
}
}
public SQLType GetSQLParameterType(TableVarColumn AColumn)
{
return GetSQLParameterType(AColumn.MetaData);
}
public string ParameterDomainName(TableVarColumn AColumn)
{
return ParameterDomainName(AColumn.MetaData);
}
public string DomainName(TableVarColumn AColumn)
{
return DomainName(AColumn.MetaData);
}
public ColumnSchema(TableVarColumn AColumn, TableSchema ATable)
{
FColumn = AColumn;
FTable = ATable;
}
public TableVarColumnEventHandlers(TableVarColumn tableVarColumn) : base()
{
_tableVarColumn = tableVarColumn;
}
public TableVarColumnConstraints(TableVarColumn tableVarColumn) : base()
{
_tableVarColumn = tableVarColumn;
}
public override string DomainName(TableVarColumn AColumn)
{
return("number(3, 0)");
}
private void EnsureColumn(TableVarColumn column, string combinedName, TableVarColumn rowIDColumn, string rowIDmappedType, int columnId, RangeSet podIds, ref int nextPod)
{
// Attempt to find the column by ID, determine if it is already created
Range query = new Range();
query.ColumnID = Dictionary.ColumnID;
query.Start = new RangeBound()
{
Bound = columnId, Inclusive = true
};
query.End = new RangeBound()
{
Bound = columnId, Inclusive = true
};
var result = Device.Database.GetRange(new int[] { }, query, int.MaxValue);
if (result.Data.Count == 0)
{
// Determine the storage pod - default, but let the user override
var defaultPodID = podIds.Data[nextPod++ % podIds.Data.Count].Values[0];
var podIDs =
(
from p in D4.MetaData.GetTag(column.MetaData, "Storage.PodIDs", defaultPodID.ToString()).Split(',')
select Int32.Parse(p)
).ToArray();
if (podIDs.Length == 0)
{
throw new Exception(String.Format("No Pod ID(s) given for column {0} of table {1}.", column.DisplayName, column.TableVar.DisplayName));
}
var mappedName = MapTypeNames(column.DataType);
using (var transaction = Device.Database.Begin(true, true))
{
transaction.Include
(
Dictionary.ColumnColumns,
columnId,
new object[]
{
columnId,
combinedName,
mappedName,
rowIDmappedType,
(rowIDColumn == column) ? BufferType.Identity
: column.TableVar.Keys.Any(k => k.Columns.Count == 1 && k.Columns[0] == column) ? BufferType.Unique
: BufferType.Multi
}
);
foreach (var pod in podIDs)
{
transaction.Include
(
Dictionary.PodColumnColumns,
Device.IDGenerator.Generate(Dictionary.PodColumnPodID),
new object[] { pod, columnId }
);
}
transaction.Commit();
}
}
}
public static bool IsColumnVisible(TableVarColumn column)
{
return(Convert.ToBoolean(DAE.Language.D4.MetaData.GetTag(column.MetaData, "Frontend.Visible", "true")));
}
private static string GetColumnTitle(TableVarColumn column)
{
return(DAE.Language.D4.MetaData.GetTag(column.MetaData, "Frontend.Title", DAE.Schema.Object.Unqualify(column.Name)));
}
