Joule
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  • Why Joule?
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      • StreamEvent object
      • Contextual data
      • GeoNode
  • Tutorials
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    • Stream sliding window quote analytics
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      • Custom missing value processor
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      • Enrichment
        • Key concepts
          • Anatomy of enrichment DSL
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      • Event tap
        • Anatomy of a Tap
        • SQL Queries
    • Analytics
      • Analytic tools
        • User defined analytics
          • Streaming analytics example
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            • Average function library
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              • Euclidean
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            • Entity geo tracker
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          • HyperLogLog
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        • Create metrics
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      • MinIO S3
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      • Sources
        • Kafka
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          • Further configurations
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          • Persistent messaging
          • Last Will and Testament
        • SQL databases
        • InfluxDB
        • MongoDB
        • Geode
        • WebSocket endpoint
        • MinIO S3
        • File transport
        • Slack
        • Email
      • Serialisers
        • Serialisation
          • Custom transform example
          • Formatters
        • Deserialisers
          • Custom parsing example
    • Observability
      • Enabling JMX for Joule
      • Meters
      • Metrics API
  • DEVELOPER GUIDES
    • Setting up developer environment
      • Environment setup
      • Build and deploy
      • Install Joule
        • Install Docker demo environment
        • Install with Docker
        • Install from source
        • Install Joule examples
    • API Endpoints
      • Mangement API
        • Use case
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        • Data connectors
        • Contextual data
      • Data access API
        • Query
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        • WebSocket
      • SQL support
    • Builder SDK
      • Connector API
        • Sources
          • StreamEventParser API
        • Sinks
          • CustomTransformer API
      • Processor API
      • Analytics API
        • Create custom metrics
        • Define analytics
        • Windows API
        • SQL queries
      • Transformation API
        • Obfuscation API
        • FieldTokenizer API
      • File processing
      • Data types
        • StreamEvent
        • ReferenceDataObject
        • GeoNode
    • System configuration
      • System properties
  • Product updates
    • Public Roadmap
    • Release Notes
      • v1.2.0 Join Streams with stateful analytics
      • v1.1.0 Streaming analytics enhancements
      • v1.0.4 Predictive stream processing
      • v1.0.3 Contextual SQL based metrics
    • Change history
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  1. Components
  2. Analytics
  3. Analytic tools
  4. Analytic functions

Stateful

Stateful based analytics over a grouped set of events

PreviousAnalytic functionsNextExponential moving average

Last updated 5 months ago

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Stateful math functions refer to mathematical operations or transformations that maintain some form of internal state across invocations

Available functions

Exponential moving average

Rolling sum