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public static AggregateUnbound ( string expr ) : |
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| expr | string | |
| return | ||
internal override object Eval(DataRow row, DataRowVersion version)
{
if (_childTable == null)
{
throw ExprException.AggregateUnbound(ToString());
}
DataRow[] rows;
if (_local)
{
rows = new DataRow[_childTable.Rows.Count];
_childTable.Rows.CopyTo(rows, 0);
}
else
{
if (row == null)
{
throw ExprException.EvalNoContext();
}
if (_relation == null)
{
throw ExprException.AggregateUnbound(ToString());
}
rows = row.GetChildRows(_relation, version);
}
int[] records;
if (version == DataRowVersion.Proposed)
{
version = DataRowVersion.Default;
}
List <int> recordList = new List <int>();
for (int i = 0; i < rows.Length; i++)
{
if (rows[i].RowState == DataRowState.Deleted)
{
if (DataRowAction.Rollback != rows[i]._action)
{
continue;
}
Debug.Assert(DataRowVersion.Original == version, "wrong version");
version = DataRowVersion.Original;
}
else if ((DataRowAction.Rollback == rows[i]._action) && (rows[i].RowState == DataRowState.Added))
{
continue;
}
if (version == DataRowVersion.Original && rows[i]._oldRecord == -1)
{
continue;
}
recordList.Add(rows[i].GetRecordFromVersion(version));
}
records = recordList.ToArray();
return(_column.GetAggregateValue(records, _type));
}
internal override void Bind(DataTable table, List <DataColumn> list)
{
base.BindTable(table);
if (table == null)
{
throw ExprException.AggregateUnbound(this.ToString());
}
if (this.local)
{
this.relation = null;
}
else
{
DataRelationCollection childRelations = table.ChildRelations;
if (this.relationName == null)
{
if (childRelations.Count > 1)
{
throw ExprException.UnresolvedRelation(table.TableName, this.ToString());
}
if (childRelations.Count != 1)
{
throw ExprException.AggregateUnbound(this.ToString());
}
this.relation = childRelations[0];
}
else
{
this.relation = childRelations[this.relationName];
}
}
this.childTable = (this.relation == null) ? table : this.relation.ChildTable;
this.column = this.childTable.Columns[this.columnName];
if (this.column == null)
{
throw ExprException.UnboundName(this.columnName);
}
int num = 0;
while (num < list.Count)
{
DataColumn column = list[num];
if (this.column == column)
{
break;
}
num++;
}
if (num >= list.Count)
{
list.Add(this.column);
}
Bind(this.relation, list);
}
// Helper for the DataTable.Compute method
internal override object Eval(int[] records)
{
if (_childTable == null)
{
throw ExprException.AggregateUnbound(ToString());
}
if (!_local)
{
throw ExprException.ComputeNotAggregate(ToString());
}
return(_column.GetAggregateValue(records, _type));
}
internal override object Eval(DataRow row, DataRowVersion version)
{
#if DEBUG
if (CompModSwitches.AggregateNode.TraceVerbose)
{
Debug.WriteLine("Eval " + this.ToString() + ", version " + version.ToString());
}
#endif
if (table == null)
{
throw ExprException.AggregateUnbound(this.ToString());
}
DataRow[] rows;
if (local)
{
rows = new DataRow[table.Rows.Count];
table.Rows.CopyTo(rows, 0);
}
else
{
if (row == null)
{
throw ExprException.EvalNoContext();
}
if (relation == null)
{
throw ExprException.AggregateUnbound(this.ToString());
}
rows = row.GetChildRows(relation, version);
}
#if DEBUG
if (CompModSwitches.AggregateNode.TraceVerbose)
{
Debug.WriteLine("Eval " + this.ToString() + ", # of Rows: " + rows.Length.ToString());
}
#endif
int[] records;
if (version == DataRowVersion.Proposed)
{
version = DataRowVersion.Default;
}
records = new int[rows.Length];
for (int i = 0; i < rows.Length; i++)
{
records[i] = rows[i].GetRecordFromVersion(version);
}
return(column.GetAggregateValue(records, type));
}
internal override object Eval(DataRow row, DataRowVersion version)
{
DataRow[] childRows;
if (this.childTable == null)
{
throw ExprException.AggregateUnbound(this.ToString());
}
if (this.local)
{
childRows = new DataRow[this.childTable.Rows.Count];
this.childTable.Rows.CopyTo(childRows, 0);
}
else
{
if (row == null)
{
throw ExprException.EvalNoContext();
}
if (this.relation == null)
{
throw ExprException.AggregateUnbound(this.ToString());
}
childRows = row.GetChildRows(this.relation, version);
}
if (version == DataRowVersion.Proposed)
{
version = DataRowVersion.Default;
}
List <int> list = new List <int>();
for (int i = 0; i < childRows.Length; i++)
{
if (childRows[i].RowState == DataRowState.Deleted)
{
if (DataRowAction.Rollback != childRows[i]._action)
{
continue;
}
version = DataRowVersion.Original;
}
else if ((DataRowAction.Rollback == childRows[i]._action) && (childRows[i].RowState == DataRowState.Added))
{
continue;
}
if ((version != DataRowVersion.Original) || (childRows[i].oldRecord != -1))
{
list.Add(childRows[i].GetRecordFromVersion(version));
}
}
int[] records = list.ToArray();
return(this.column.GetAggregateValue(records, this.type));
}
// Helper for the DataTable.Compute method
internal override object Eval(int[] records)
{
#if DEBUG
if (CompModSwitches.AggregateNode.TraceVerbose)
{
Debug.WriteLine("Eval " + this.ToString());
}
#endif
if (table == null)
{
throw ExprException.AggregateUnbound(this.ToString());
}
if (!local)
{
throw ExprException.ComputeNotAggregate(this.ToString());
}
return(column.GetAggregateValue(records, type));
}
internal override void Bind(DataTable table, List <DataColumn> list)
{
BindTable(table);
if (table == null)
{
throw ExprException.AggregateUnbound(ToString());
}
if (_local)
{
_relation = null;
}
else
{
DataRelationCollection relations;
relations = table.ChildRelations;
if (_relationName == null)
{
// must have one and only one relation
if (relations.Count > 1)
{
throw ExprException.UnresolvedRelation(table.TableName, ToString());
}
if (relations.Count == 1)
{
_relation = relations[0];
}
else
{
throw ExprException.AggregateUnbound(ToString());
}
}
else
{
_relation = relations[_relationName];
}
}
_childTable = (_relation == null) ? table : _relation.ChildTable;
_column = _childTable.Columns[_columnName];
if (_column == null)
{
throw ExprException.UnboundName(_columnName);
}
// add column to the dependency list, do not add duplicate columns
Debug.Assert(_column != null, "Failed to bind column " + _columnName);
int i;
for (i = 0; i < list.Count; i++)
{
// walk the list, check if the current column already on the list
DataColumn dataColumn = list[i];
if (_column == dataColumn)
{
break;
}
}
if (i >= list.Count)
{
list.Add(_column);
}
AggregateNode.Bind(_relation, list);
}
internal override void Bind(DataTable table, List <DataColumn> list)
{
BindTable(table);
if (table == null)
{
throw ExprException.AggregateUnbound(this.ToString());
}
if (local)
{
relation = null;
}
else
{
DataRelationCollection relations;
relations = table.ChildRelations;
if (relationName == null)
{
// must have one and only one relation
if (relations.Count > 1)
{
throw ExprException.UnresolvedRelation(table.TableName, this.ToString());
}
if (relations.Count == 1)
{
relation = relations[0];
}
else
{
throw ExprException.AggregateUnbound(this.ToString());
}
}
else
{
relation = relations[relationName];
}
}
childTable = (relation == null) ? table : relation.ChildTable;
this.column = childTable.Columns[columnName];
if (column == null)
{
throw ExprException.UnboundName(columnName);
}
// add column to the dependency list, do not add duplicate columns
Debug.Assert(column != null, "Failed to bind column " + columnName);
int i;
for (i = 0; i < list.Count; i++)
{
// walk the list, check if the current column already on the list
DataColumn dataColumn = (DataColumn)list[i];
if (column == dataColumn)
{
break;
}
}
if (i >= list.Count)
{
list.Add(column);
}
// SQLBU 383715: Staleness of computed values in expression column as the relationship end columns are not being added to the dependent column list.
AggregateNode.Bind(relation, list);
}
internal override void Bind(DataTable table, ArrayList list)
{
#if DEBUG
if (CompModSwitches.AggregateNode.TraceVerbose)
{
Debug.WriteLine("Binding Aggregate expression " + this.ToString());
}
#endif
if (table == null)
{
throw ExprException.AggregateUnbound(this.ToString());
}
#if DEBUG
if (CompModSwitches.AggregateNode.TraceVerbose)
{
Debug.WriteLine("in table " + table.TableName);
}
#endif
if (local)
{
relation = null;
}
else
{
DataRelationCollection relations;
relations = table.ChildRelations;
if (relationName == null)
{
// must have one and only one relation
if (relations.Count > 1)
{
throw ExprException.UnresolvedRelation(table.TableName, this.ToString());
}
if (relations.Count == 1)
{
relation = relations[0];
}
else
{
throw ExprException.AggregateUnbound(this.ToString());
}
}
else
{
relation = relations[relationName];
}
Debug.Assert(relation != null, String.Format(Res.GetString(Res.Expr_AggregateUnbound), this.ToString()));
}
DataTable childTable = (relation == null) ? table : relation.ChildTable;
this.table = childTable;
this.column = childTable.Columns[columnName];
if (column == null)
{
throw ExprException.UnboundName(columnName);
}
// add column to the dependency list, do not add duplicate columns
Debug.Assert(column != null, "Failed to bind column " + columnName);
int i;
for (i = 0; i < list.Count; i++)
{
// walk the list, check if the current column already on the list
DataColumn dataColumn = (DataColumn)list[i];
if (column == dataColumn)
{
break;
}
}
if (i >= list.Count)
{
list.Add(column);
}
//UNDONE : Debug.WriteLineIf("AggregateNode", this.ToString() + " bound");
}
