ProcessMIX Guide
  • Platform Overview
    • Introduction
    • Platform Purpose
    • Main Concepts
      • Organization Structure
      • Visual Language
      • Project Development Environment (IDE)
      • Deployment and Integration
      • Administration and Troubleshooting
    • First Steps
    • Change Log
      • 5.0.0
      • 5.0.5
      • 5.0.5.1
      • 5.0.5.2
      • 5.0.5.3
      • 5.0.5.4
  • Language Reference Guide
    • Overview
    • Data Structures and Types
      • Core Types (pdk.core)
      • Dictionary (pdk.asset.dictionary)
      • Scorecard (pdk.asset.scorecard)
      • Blockchain (pdk.blockchain)
      • Exceptions (pdk.ex)
      • Input/Output (pdk.io)
      • JSON Web Token (pdk.jwt)
      • Networking (pdk.net)
      • HTTP (pdk.net.http)
      • SOAP/Web Services (pdk.net.soap)
      • XML/DOM (pdk.net.xml)
      • S3 (pdk.s3)
      • SQL (pdk.sql)
      • Postgres (pdk.db.postgre)
      • Util (pdk.util)
      • Default Data Structure Field Values
    • Flows
      • Variables
        • Local Flow Variables
        • Node Variables
      • Flow Node Types
        • Core Nodes
          • In
          • Out
          • Assign
          • If
          • Switch
          • Iterator
          • Function Call
          • Subflow
          • Raise Exception
          • Exception Handler
          • Validator
        • Connector Nodes
          • Database Begin Transaction
          • Database Commit Transaction
          • Database Rollback Transaction
          • Database Query Executor
          • EVM Blockchain Functions
          • EVM Blockchain Smart Contract Functions
          • REST Service Executor
          • SOAP Service Executor
          • S3 Connector
          • SMB Connector
      • Expressions
      • Built-In Functions
        • Expression functions
          • pdk.util.Any
          • pdk.util.Array
          • pdk.util.Blockchain
          • pdk.util.Cast
          • pdk.util.Codec
          • pdk.util.Crypto
          • pdk.util.Date
          • pdk.util.File
          • pdk.util.Json
          • pdk.util.JWT
          • pdk.util.Map
          • pdk.util.Math
          • pdk.util.String
          • pdk.util.Util
        • Node functions
          • pdk.flow.Any
          • pdk.flow.Array
          • pdk.flow.File
          • pdk.flow.JsonArray
          • pdk.flow.JsonObject
          • pdk.flow.HttpRequest
          • pdk.flow.HttpResponse
          • pdk.flow.Logger
          • pdk.flow.Map
          • pdk.flow.Xml
            • pdk.flow.xml.XmlAttr
            • pdk.flow.xml.XmlElement
            • pdk.flow.xml.XmlNode
            • pdk.flow.xml.XmlDocument
            • pdk.flow.xml.XmlDocumentType
            • pdk.flow.xml.XmlDOMConfiguration
            • pdk.flow.xml.XmlDOMImplementation
            • pdk.flow.xml.XmlProcessingInstruction
            • pdk.flow.xml.XmlTypeInfo
            • pdk.flow.xml.XmlCharacterData
            • pdk.flow.xml.XmlText
            • pdk.flow.xml.XmlNamedNodeMap
          • pdk.node.BlockchainEth
          • pdk.node.S3
          • pdk.node.Smb
      • Exceptions
        • Checked Exceptions
        • Runtime Exceptions
    • Assets
      • Dictionary
      • Decision Table
      • Scorecard
      • PMML
    • Connectors
      • DB Connector
        • Prepared Query
        • Dynamic Query
        • Query input parameters
        • Stored Procedure
      • REST Connector
      • SOAP Connector
      • S3 Connector
      • SMB Connector
      • EVM Blockchain Connector
    • Global Variables
    • Appendices
      • Overview of Database Transactions
      • Reserved Words
  • Project Development Environment (IDE)
    • Project Explorer Panel
    • Flow Builder
    • Flow Node Editor
    • Data Structure Builder
    • Connector Builders
      • REST Connector Builder
      • SOAP Connector Builder
      • DB (Database) Connector Builder
      • EVM Blockchain Connectors Builder
      • S3 Connector Builder
    • Asset Builders
      • Dictionary Builder
      • Decision Table Builder
      • Scorecard Builder
      • PMML Asset Builder
    • Global Variables Panel
    • Expression Editor
    • Project Deployment and Execution
    • Cron Expression Generator
    • Test Helper
    • Debugging the Project
    • DB transactions
    • Team Collaboration Tools
      • Version Control
      • Conflict Resolver
    • Selectors
    • Error Panel
    • Local History
  • Home and Administration Guide
    • Organization and Subscription
    • Organization Team
    • Repositories and Projects
    • Environments
    • Deployments
    • Database Provisioning
    • Roles and Permissions
  • Logs and Troubleshooting
    • Request/Call Logs
    • Deployment Logs
    • Application Logs
  • Appendix: Example Project
    • Risk Mitigation Solution
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  • Purpose
  • Scope
  • Lifecycle
  • Data Types
  1. Language Reference Guide
  2. Flows

Variables

PreviousFlowsNextLocal Flow Variables

Last updated 6 months ago

Flow variables are memory containers that hold temporary data during the execution of a flow. They can represent various types of information, such as numbers, strings, dates, or complex data structures, arrays or maps.

Variables play fundamental role in orchestrating and controlling the behavior of flows, enabling exchange of information between their internal nodes, as well as preparing parameters for and receiving results of external calls to connectors and subflows.


Purpose

Flow variables serve multiple purposes within a flow, including:

  • Storing intermediate results or temporary data.

  • Passing information between different nodes or steps in the flow.

  • Controlling flow execution based on conditional checks or business rules.

  • Providing input parameters for flow's nodes.


Scope

Flow variables can have different scopes depending on where they are defined and how they are used within the flow.

are available for use by all nodes within the flow.

are available for use by all nodes located after the node that produced them.


Lifecycle

  • Initialization: Variables are initialized with an initial value before they are used.

  • Modification: Variables may be modified or updated as the flow progresses.

  • Reference: Variables are referenced by nodes or steps to read or write values.

  • Cleanup: Variables may be cleared or reset at the end of the flow.


Data Types


Flow variables can hold values of various , including primitive types (e.g. Integers, Strings, Booleans) and complex types (e.g. Arrays, Maps, custom data structures).

Flow Local Variables
Node Variables
data types