void IColumnMapping.ProcessMapping(int column, int rowNumber, ICdlRecord record, ICdlValueWriter writer, IShellContext context)
{
if (_value == null)
{
_value = new CdlValueHolder();
}
if (Expression != null && Value != null)
{
throw new Exception("DBSH-00004 MapValue: Both Expression and Value is set");
}
var childContext = context.CreateChildContext();
if (Value != null)
{
CreateColumnValues(record, childContext);
string value = childContext.Replace(Value);
_value.ReadFrom(value);
_value.WriteTo(writer);
}
if (Expression != null)
{
CreateColumnValues(record, childContext);
object value = childContext.Evaluate(Expression);
_value.ReadFrom(value);
_value.WriteTo(writer);
}
if (Expression == null && Value == null)
{
_value.SetNull();
_value.WriteTo(writer);
}
}
public static bool GetValueAsXml(object value, ref string xtype, ref string xdata)
{
var holder = new CdlValueHolder();
holder.ReadFrom(value);
return(GetValueAsXml(holder, ref xtype, ref xdata));
}
private CdlValueHolder WantValue()
{
if (!_loadedValue)
{
_workingHolder.ReadFrom(_values[_curReadField]);
_loadedValue = true;
}
return(_workingHolder);
}
public object ConvertValue(TypeStorage type, object value)
{
m_holder1.ReadFrom(value);
var srctype = m_holder1.GetFieldType();
if (srctype == type || srctype == TypeStorage.Null)
{
return(value);
}
ConvertValue(m_holder1, type, m_holder2);
return(m_holder2.BoxTypedValue());
}
protected static void GetValues(DmlfUpdateFieldCollection fields, List <ChangeSetValue> values, TableInfo table, IDialectDataAdapter dda, ICdlValueConvertor converter)
{
var input = new CdlValueHolder();
var output = new CdlValueHolder();
foreach (var col in values)
{
var colinfo = table.FindColumn(col.Column);
if (colinfo == null)
{
continue;
}
input.ReadFrom(col.Value);
dda.AdaptValue(input, colinfo.CommonType, output, converter);
fields.Add(new DmlfUpdateField
{
TargetColumn = colinfo.Name,
Expr = new DmlfLiteralExpression
{
Value = output.GetValue(),
}
});
}
}
public string GetSqlLiteral(object value, DbTypeBase type)
{
m_holder.ReadFrom(value);
return GetSqlLiteral(m_holder, type);
}
