private Operation.Grouping.IMergeAlgorithm BuildOrGetMergeAlgo(ViewColumn vc, Type columnValueType, Database.MetaColumn metaColumn)
{
Operation.Grouping.IMergeAlgorithm mergeAlgo = null;
if (mergeAlgoE != Operation.Grouping.MergeAlgo.none)
{
mergeAlgo = Operation.Grouping.GetMergeAlgo(mergeAlgoE, columnValueType);
if (metaColumn != null)
{
metaColumn.DefaultMergeAlgorithm = mergeAlgo;
}
}
else
{
if (metaColumn != null)
{
mergeAlgo = metaColumn.DefaultMergeAlgorithm;
}
}
if (vc != null && mergeAlgo != null && mergeAlgo.IsDisplayMergedRowsOnly())
{
vc.m_IsDisplayMergedOnly = true;
}
return(mergeAlgo);
}
void ViewColumn.IViewColumn.SetColumn(ViewColumn vc, Database.Column col)
{
if (this.vc != null)
{
throw new InvalidOperationException("Cannot call 'ViewColumn.IViewColumn.SetColumn' once already set");
}
this.vc = vc;
}
public IViewColumn Build(ViewTable.Builder.Node node, ViewSchema vs, Database.Schema baseSchema, ViewTable vTable, Operation.ExpressionParsingContext expressionParsingContext, ref Database.MetaColumn metaColumn)
{
// Check if we have a type mismatch
Type columnValueType = metaColumn != null ? metaColumn.Type : null;
if (value.type != null)
{
if (columnValueType != null && columnValueType != value.type)
{
DebugUtility.LogWarning("While building column '" + name + "' : "
+ "Cannot override type from '" + columnValueType.Name
+ "' to '" + value.type.Name + "'");
}
columnValueType = value.type;
}
// Parse expression value
Operation.Expression.ParseIdentifierOption parseOpt = new Operation.Expression.ParseIdentifierOption(vs, vTable, true, false, columnValueType, expressionParsingContext);
parseOpt.formatError = (string s, Operation.Expression.ParseIdentifierOption opt) => {
return(FormatErrorContextInfo(vs, vTable) + " : " + s);
};
Operation.Expression expression = Operation.Expression.ParseIdentifier(value, parseOpt);
// Build declaration with the type we've just parsed
BuildOrUpdateDeclaration(ref metaColumn, expression.type);
IViewColumn result = (IViewColumn)Operation.ColumnCreator.CreateViewColumnExpression(expression);
ViewColumn vc = new ViewColumn();
vc.m_MetaLink = m_MetaLink;
vc.viewTable = vTable;
vc.ParsingContext = expressionParsingContext;
result.SetColumn(vc, null);
return(result);
}
void ViewColumn.IViewColumn.SetColumn(ViewColumn vc, Database.Column col)
{
m_SourceViewColumn = vc;
UpdateCache();
}
public ViewColumRowIndex(ViewColumn vc)
{
this.vc = vc;
type = typeof(long);
}
void ViewColumn.IViewColumn.SetColumn(ViewColumn vc, Column col)
{
this.vc = vc;
}
void ViewColumn.IViewColumn.SetColumn(ViewColumn vc, Database.Column col)
{
this.vc = vc;
column = (Database.ColumnTyped <DataT>)col;
m_rowIndex = null;
}
public ViewColumnConst(ViewColumn vc, DataT v)
{
this.vc = vc;
value = v;
}
