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Projects
A project is a container for HCL Link artifacts.
Schemas
Use the schema designer to define, modify, and view schemas. A schema describes the syntax, structure, and semantics of your data.
Item restrictions

Projects
A project is a container for HCL Link artifacts.
- Flows
  This documentation describes how Flows can be run from REST API, listeners, or they can be scheduled.
- Maps
  Maps define input and output specifications and mapping rules for data transformation.
- Schemas
  Use the schema designer to define, modify, and view schemas. A schema describes the syntax, structure, and semantics of your data.
  - About schemas
    A schema defines the contents of at least one input that you intend to map or one output you intend to map.
  - Subtypes
  - Schema hierarchy
  - Defining data
  - Objects, types, and classes
  - Testing part of a schema
    You can test a schema by generating test data for an item or a group. The schema designer creates source and compiled maps that generate and validate the test data. The test-data-generation map automatically runs and produces a text file with the sample data. After that, the test-data-validation map automatically runs on the sample data file.
  - Type properties
  - Item restrictions
    - Restrictions settings
    - Ignoring restrictions
  - Components
  - Partitioning
  - Type inheritance
  - Error detection
  - Error recovery
  - Schema analyzer
  - Distinguishable objects
  - Return codes and error messages
- Connections and Actions
  This documentation describes connections and actions.
- Files
  Files are used in various places within HCL Link. HCL Link allows files to be uploaded to the HCL Linkserver.

Item restrictions

Item restrictions are an optional feature you can use to specify valid or invalid data objects for an item type. Item restrictions are grouped into three categories: Value, Character, and Range.

Restrictions of an item type are the valid or invalid values for that item. "Include" restrictions are all of the valid values for an item. "Exclude" restrictions specify all of the invalid values.For example, a unit of measure field in the data must be one of a set of values: CN, BX, PK, BR. These values should be defined as "include" restrictions of the item UnitOfMeasure.

Defining restrictions for an item restricts the valid data for that item. Partial lists of the valid values are not possible. For example, it is not possible to define the values for a certain item to be {A, B, C, "some other possible values"}.

While you can define restrictions for any item, most items will not have restrictions. For example, you would not want to restrict the valid values of a name field because you would probably want to accept any name as valid data for that field. However, you could assign restrictions to it if needed.