public TableRelation(IList <ColumnBinding> parentColumns, IList <ColumnBinding> childColumns)
{
if (parentColumns == null)
{
throw ExceptionBuilder.ArgumentNull("parentColumns");
}
if (childColumns == null)
{
throw ExceptionBuilder.ArgumentNull("childColumns");
}
if (parentColumns.Count == 0)
{
throw ExceptionBuilder.ArgumentArrayMustNotBeEmpty("parentColumns");
}
if (childColumns.Count != parentColumns.Count)
{
throw ExceptionBuilder.ArgumentArrayMustHaveSameSize("childColumns", "parentColumns");
}
TableBinding parentTable = parentColumns[0].Table;
TableBinding childTable = childColumns[0].Table;
for (int i = 1; i < parentColumns.Count; i++)
{
if (parentColumns[i].Table != parentTable)
{
throw ExceptionBuilder.AllColumnsMustBelongToSameTable("parentColumns");
}
}
for (int i = 1; i < childColumns.Count; i++)
{
if (childColumns[i].Table != childTable)
{
throw ExceptionBuilder.AllColumnsMustBelongToSameTable("childColumns");
}
}
_parentColumns = new ColumnBindingCollection(parentColumns);
_childColumns = new ColumnBindingCollection(childColumns);
}