Welcome
Administration
Learn about how to configure, manage, and maintain HCL Detect environments. It includes details on system setup, user management, and permissions, ensuring seamless operation and efficient deployment of your continuous delivery processes.
Detect Expression Language
Conversions

Getting Started
Welcome to the documentation for HCL Detect, where you can find information about how to install, maintain, and use this service.
Installation
Learn more about HCL Detect installation and deploying core components of the product.
Administration
Learn about how to configure, manage, and maintain HCL Detect environments. It includes details on system setup, user management, and permissions, ensuring seamless operation and efficient deployment of your continuous delivery processes.
- Introduction
  Use this guide to administer HCL Detect, including user and role access, CLI-based configuration and management tasks, DEL reference topics, and support resources.
- User & Role Management
  This page explains how to manage roles and permission in HCL Detect.
- Configuration Management
  Use CLI commands to query and validate the infrastructure settings required for Detect operations.
- Metadata Management
  Use CLI commands to discover data sources, search tables, and retrieve column metadata for Detect integrations.
- Profile Management
  Use CLI commands to create, update, query, and delete profile definitions used by Detect.
- Feed Application
  Use CLI commands to create and manage feed applications, including filtering and troubleshooting scenarios.
- Feed Parser Mapping
  Use CLI commands to define and maintain feed parser mappings between incoming feed fields and Detect target attributes.
- Destination Management
  Use CLI commands to configure, validate, and manage destination endpoints for Detect event delivery.
- Crypto Management
  Use CLI crypto utilities to encrypt and decrypt sensitive values used in Detect configuration workflows.
- Troubleshooting & Common Errors
- Support & Contact Information
- Detect Expression Language
- Detect Expression Language Built-in Functions
Working with the System
The section provides comprehensive instructions for creating, configuring, and managing marketing events. It covers topics such as defining audience conditions, setting up triggers, deploying events, and tracking their performance. Additionally, this section includes explanations of key terminology and offers advanced options to optimize event management.
System Data Model
This section provides detailed information about the internal tables used within the Detect module. It includes descriptions of each table's structure, purpose, and relationships, aiding administrators and developers in understanding and managing the underlying database schema effectively.

Conversions

HCL Detect Expression Language supports explicit conversions via casts using a function call syntax. The name of the function is the name of the type we want to cast to.

Examples:

Casting an Int32 to a String: String(14) yields "14"
Casting a String to a Double: Double("4.5") yields 4.5
Casting a String to a Double: Double("nan") yields NaN (not a number)

HCL Detect Expression Language supports implicit conversions (aka coercions) as well. When two integers of different types are involved in an operation, the one that has the smaller number of bits is coerced into the wider type. When an integer is involved in an operation with a Double it is coerced into a Double. Also note that, in such operations, Int64 values that cannot be represented exactly will be rounded to the closest Double value.

Examples:

Coercion with integers of different bit-lengths: count/2 has type Int64, assuming count is of type Int64 (this has the same semantics as the expression count / Int64(2))
Coercion involving an Int32 and a Double: timestamp / 1000 has type Double, assuming timestamp is of type Double (this has the same semantics as the expression timestamp / Double(1000))