protected virtual void SetupIndexes(Type indexType)
{
indexes = new TableIndex[TableInfo.Columns.Count];
for (int i = 0; i < TableInfo.Columns.Count; i++)
{
var columnName = TableInfo.Columns[i].ColumnName;
var indexInfo = new IndexInfo($"#COLIDX_{i}", TableInfo.TableName, columnName);
if (indexType == typeof(BlindSearchIndex))
{
indexes[i] = new BlindSearchIndex(indexInfo, this);
}
else if (indexType == typeof(InsertSearchIndex))
{
indexes[i] = new InsertSearchIndex(indexInfo, this);
}
else
{
var index = Activator.CreateInstance(indexType, indexInfo, this) as TableIndex;
if (index == null)
{
throw new InvalidOperationException();
}
indexes[i] = index;
}
}
}
protected virtual void SetupIndexes(Type indexType)
{
indexes = new ColumnIndex[ColumnCount];
for (int i = 0; i < ColumnCount; i++)
{
if (indexType == typeof(BlindSearchIndex))
{
indexes[i] = new BlindSearchIndex(this, i);
}
else if (indexType == typeof(InsertSearchIndex))
{
indexes[i] = new InsertSearchIndex(this, i);
}
else
{
var index = Activator.CreateInstance(indexType, this, i) as ColumnIndex;
if (index == null)
{
throw new InvalidOperationException();
}
indexes[i] = index;
}
}
}
protected override ColumnIndex GetIndex(int column, int originalColumn, ITable table)
{
if (ColumnIndices[column] == null)
{
// EFFICIENCY: We implement this with a blind search...
var index = new BlindSearchIndex(this, column);
ColumnIndices[column] = index.GetSubset(this, column);
}
if (table == this)
{
return(ColumnIndices[column]);
}
return(ColumnIndices[column].GetSubset(table, originalColumn));
}
protected override ColumnIndex GetIndex(int column, int originalColumn, ITable table)
{
var index = columnIndexes[column];
if (index == null)
{
index = new BlindSearchIndex(this, column);
columnIndexes[column] = index;
}
// If we are getting a scheme for this table, simple return the information
// from the column_trees Vector.
if (table == this)
{
return(index);
}
// Otherwise, get the scheme to calculate a subset of the given scheme.
return(index.GetSubset(table, originalColumn));
}
