Home
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.
Components
Defining component rules
Component rule syntax

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
  - 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.

Component rule syntax

A component rule is a complete expression that evaluates to either "true" or "false". It can contain functions (for example, PRESENT, COUNT, and SUM). It can also contain arithmetic operators (such as - + / *).

A component rule is a statement, so it does not start with an equal sign.

For more information about the syntax of expressions, see the functions and expressions documentation.