/// <summary>
/// Creates a "flattened" table definition.
///
/// The table has one column for each specified property in the "properties" parameter.
/// The name and datatype of each table column are taken from the corresponding property.
///
/// The keys of the table (if any) are those specified in the "keyProperties" parameter
///
/// The table may correspond to an entity set (if the entityset parameter was non-null)
/// </summary>
/// <param name="properties">prperties corresponding to columns of the table</param>
/// <param name="keyProperties"></param>
/// <param name="extent">entityset corresponding to the table (if any)</param>
internal TableMD(IEnumerable<EdmProperty> properties, IEnumerable<EdmMember> keyProperties,
EntitySetBase extent)
: this(extent)
{
Dictionary<string, ColumnMD> columnMap = new Dictionary<string, ColumnMD>();
m_flattened = true;
foreach (EdmProperty p in properties)
{
ColumnMD newColumn = new ColumnMD(this, p);
m_columns.Add(newColumn);
columnMap[p.Name] = newColumn;
}
foreach (EdmMember p in keyProperties)
{
ColumnMD keyColumn;
if (!columnMap.TryGetValue(p.Name, out keyColumn))
{
Debug.Assert(false, "keyMember not in columns?");
}
else
{
m_keys.Add(keyColumn);
}
}
}
/// <summary>
/// Creates a "flattened" table definition.
///
/// The table has one column for each specified property in the "properties" parameter.
/// The name and datatype of each table column are taken from the corresponding property.
///
/// The keys of the table (if any) are those specified in the "keyProperties" parameter
///
/// The table may correspond to an entity set (if the entityset parameter was non-null)
/// </summary>
/// <param name="properties">prperties corresponding to columns of the table</param>
/// <param name="keyProperties"></param>
/// <param name="extent">entityset corresponding to the table (if any)</param>
internal TableMD(IEnumerable <EdmProperty> properties, IEnumerable <EdmMember> keyProperties,
EntitySetBase extent)
: this(extent)
{
Dictionary <string, ColumnMD> columnMap = new Dictionary <string, ColumnMD>();
m_flattened = true;
foreach (EdmProperty p in properties)
{
ColumnMD newColumn = new ColumnMD(this, p);
m_columns.Add(newColumn);
columnMap[p.Name] = newColumn;
}
foreach (EdmMember p in keyProperties)
{
ColumnMD keyColumn;
if (!columnMap.TryGetValue(p.Name, out keyColumn))
{
Debug.Assert(false, "keyMember not in columns?");
}
else
{
m_keys.Add(keyColumn);
}
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="id"></param>
/// <param name="table"></param>
/// <param name="columnMetadata"></param>
internal ColumnVar(int id, Table table, ColumnMD columnMetadata)
: base(id, VarType.Column, columnMetadata.Type)
{
m_table = table;
m_columnMetadata = columnMetadata;
}
/// <summary>
/// Creates a new var for a table column
/// </summary>
/// <param name="table">The table instance that produces the column</param>
/// <param name="columnMD">column metadata</param>
/// <returns>A new ColumnVar instance that references the specified column in the given table</returns>
internal ColumnVar CreateColumnVar(Table table, ColumnMD columnMD)
{
// create a new column var now
ColumnVar c = new ColumnVar(NewVarId(), table, columnMD);
table.Columns.Add(c);
m_vars.Add(c);
return c;
}
