public EntitySQLFilterItem(string fieldName, EntitySQLFilterOperation operation, object relativeValue, Func <string, string, bool, string> customSQLSegmentBuilder)
            : base(fieldName, customSQLSegmentBuilder)
        {
            //TODO: To handle "operation == null".
            this.NullAsDisabled = true;

            this.Operation     = operation;
            this.RelativeValue = relativeValue;
        }
 public EntitySQLFilterItem(string fieldName, EntitySQLFilterOperation operation, object relativeValue)
     : this(fieldName, operation, relativeValue, null)
 {
 }