/// <summary> /// Evaluate a predicate Expression and determine whether a key range can /// be found that completely satisfies the expression. If this method returns /// true then the key range returned by <see cref="GetKeyRange"/> will return /// only records which match the expression. /// </summary> /// <param name="expression">The expression to evaluate.</param> /// <returns> /// True if the key range returned by <see cref="GetKeyRange"/> will perfectly /// match all records found by the expression. /// </returns> public static bool KeyRangeIsExact(Expression <Predicate <TKey> > expression) { if (null == expression) { throw new ArgumentNullException("expression"); } return(PredicateExpressionEvaluator <TKey> .KeyRangeIsExact(expression.Body, null)); }
/// <summary> /// Evaluate a predicate Expression and determine whether a key range can /// be found that completely satisfies the expression. If this method returns /// true then the key range returned by <see cref="GetKeyRange"/> will return /// only records which match the expression. /// </summary> /// <param name="expression">The expression to evaluate.</param> /// <returns> /// True if the key range returned by <see cref="GetKeyRange"/> will perfectly /// match all records found by the expression. /// </returns> public static bool KeyRangeIsExact(Expression <Predicate <KeyValuePair <TKey, TValue> > > expression) { if (null == expression) { throw new ArgumentNullException("expression"); } return(PredicateExpressionEvaluator <TKey> .KeyRangeIsExact(expression.Body, KeyMemberInfo)); }