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.
Type properties
Item properties
Text item subclass properties
NONE
NONE > Required on input
Select a value from the Required on input property list.

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
    - Defining type properties
    - Basic type properties
    - Item properties
      - Item subclass
      - Number item subclass properties
      - Text item subclass properties
        Interpret as binary
        Interpret as character
        Size (content)
        Pad
        Restrictions
        National language
        NONE
        NONE > Special Value
        Enter a value in the Special Value property if the item is NONE.
        NONE > Required on input
        Select a value from the Required on input property list.
        Bidirectional
      - Date & Time item subclass properties
      - Syntax item subclass properties
    - Group properties
    - XML properties in the schema
  - Item restrictions
  - Components
  - Partitioning
  - Type inheritance
  - Native XML schema support
    HCL Link provides Native XML schema support.
  - Native JSON schema support
    This documentation describes the Native JSON schema support.
  - 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.

NONE > Required on input

Select a value from the Required on input property list.

Yes: If the data object is NONE, the map uses the value in the Special Value property when it validates the item in the input.
No: Do not use the value in the Special Value property. No special values or input requirements are defined when data is NONE.
When the map builds the item in the output, the item might be either the value in the Special Value property, or the default value for NONE. For example, if an item contains all pad characters and no actual data, the default value for NONE is used when that item is built in the output.