/// <summary>
/// Evaluate a predicate Expression and determine a key range which
/// contains all items matched by the predicate.
/// </summary>
/// <param name="expression">The expression to evaluate.</param>
/// <returns>
/// A KeyRange that contains all items matched by the predicate. If no
/// range can be determined the range will include all items.
/// </returns>
public static KeyRange <TKey> GetKeyRange(Expression <Predicate <KeyValuePair <TKey, TValue> > > expression)
{
if (null == expression)
{
throw new ArgumentNullException("expression");
}
return(PredicateExpressionEvaluator <TKey> .GetKeyRange(expression.Body, KeyMemberInfo));
}
/// <summary>
/// Evaluate a predicate Expression and determine a key range which
/// contains all items matched by the predicate.
/// </summary>
/// <param name="expression">The expression to evaluate.</param>
/// <returns>
/// A KeyRange that contains all items matched by the predicate. If no
/// range can be determined the range will include all items.
/// </returns>
public static KeyRange <TKey> GetKeyRange(Expression <Predicate <TKey> > expression)
{
if (null == expression)
{
throw new ArgumentNullException("expression");
}
return(PredicateExpressionEvaluator <TKey> .GetKeyRange(expression.Body, null));
}
