Welcome
Extending Platform
This section guides developers on customizing and extending Detect solutions. It covers the solution's folder structure, configuration files, integration methods, and provides insights into the Detect Expression Language and its built-in functions.
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.
Working with Platform
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.
Extending Platform
This section guides developers on customizing and extending Detect solutions. It covers the solution's folder structure, configuration files, integration methods, and provides insights into the Detect Expression Language and its built-in functions.
- Folder Structure
  This section provides an overview of the basic solution folder structure. It describes the contents of each folder and their purpose.
- drive.json File
  This page explains the structure and purpose of the drive.json file used in HCL Detect. It outlines required configurations including database settings, user profiles, communication parameters, system health metrics, and other operational settings. Proper setup of this file is essential before launching the application.
- Configurations
- Integrations
- Solution Source Code
  This page outlines the structure and components of a solution source in HCL Detect. It details how solutions are packaged, including profiles, feed models, applications, and configurations, enabling deployment and reuse across different environments.
- Detect Expression Language
- Detect Expression Language Built-in Functions
Platform 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.
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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))