Restriction Syntax Guide
In this guide we present the syntax used to define constraints (also called 'preconditions' or 'restrictions').
Tables
Literal types allowed in a constraint:
| Literal Type | Example |
|---|---|
| String | “abc” |
| Set | {a, b, c} |
Constraint operators currently implemented:
| Operator | Description | Constraint Example |
|---|---|---|
| == | equal | Login.username == Input.field |
| != | different | Input.field != “pass” |
| < | smaller than | Login.username.len() < 5 |
| > | bigger than | MD.countryName.len() > 2 |
| contains | contains | MD.__details contains {d1, d2, d3} |
Reserved fields in used for each UITP type:
| UITP | Reserved Keyword | Return Type | Description |
|---|---|---|---|
| MasterDetail | __master | Set | Refers to the set containing all the input fields of type 'master' for this UITP (UITP.__master). |
| __details | Set | Set containing all input data associated with the field 'details' for all TGConfs within a UITP (UITP.__details), or for all the TGConfs within a UITP which contain a specific master value (UITP.mastervalue.__details). | |
| Find/Sort | __fields | Set | Set with all the field names defined for within a Find or Sort UITP element (UITPFind.__fields). |
| __check | String | Returns the content of a Find or Sort's check (UITPSort.__check). | |
| __position | String | Returns the content of the field position, referent to a Find or Sort's TGConf (UITPFind.findfield.__position). | |
| __result | String | As with above, it returns the data for field result (UITPFind.searchfield.__result). |
Current methods supported:
| Method | Description |
|---|---|
| .len() | If applied to a string literal, it returns its length; when applied to a set literal, it returns the number of elements within the set. |