public override ExprNode Validate(ExprValidationContext validationContext)
{
if (_tableAccessColumn.IsMethodAgg) {
throw new ExprValidationException("Invalid combination of aggregation state and aggregation accessor");
}
var mfNode = (ExprAggMultiFunctionNode) _aggregateAccessMultiValueNode;
mfNode.ValidatePositionals(validationContext);
_tableAccessDesc = mfNode.ValidateAggregationTableRead(validationContext, _tableAccessColumn, _table);
return null;
}
protected override void ValidateBindingInternal(ExprValidationContext validationContext)
{
// validate group keys
ValidateGroupKeys(tableMeta, validationContext);
var column = (TableMetadataColumnAggregation) ValidateSubpropertyGetCol(tableMeta, SubpropName);
// validate accessor factory i.e. the parameters types and the match to the required state
if (column.IsMethodAgg) {
throw new ExprValidationException("Invalid combination of aggregation state and aggregation accessor");
}
var mfNode = (ExprAggMultiFunctionNode) aggregateAccessMultiValueNode;
mfNode.ValidatePositionals(validationContext);
tableAccessDesc = mfNode.ValidateAggregationTableRead(validationContext, column, tableMeta);
}
