continuousquery example

This is a simple example showing how to execute a continuous query on a Goede region.

Prerequisites

  • Install Apache Geode
  • Build and install Apache Geode Native
  • Apache Geode Native examples, built and installed
  • Set GEODE_HOME to the install directory of Apache Geode

Running

  1. From a command shell, set the current directory to the continuousquery directory in your example workspace.

    $ cd workspace/examples/build/dotnet/continuousquery
    
  2. Run the startserver.ps1 script to start the Geode cluster with authentication and create a region.

    For Windows cmd:

    $ powershell.exe -File startserver.ps1
    

    For Windows Powershell:

    $ startserver.ps1
    
  3. Execute Debug\dotnet-continuousquery.exe. Expect the following output:

    Registering for data serialization
    Executing continuous query
    Create orders
    Putting and changing Order objects in the region
    MyCqListener::OnEvent(CREATE) called with key Order2, value Order: [2, product y, 37]
    MyCqListener::OnEvent(CREATE) called with key Order4, value Order: [4, product z, 102]
    MyCqListener::OnEvent(CREATE) called with key Order6, value Order: [6, product z, 42]
    MyCqListener::OnEvent(UPDATE) called with key Order2, value Order: [2, product y, 45]
    MyCqListener::OnEvent(DESTROY) called with key Order2, value Order: [2, product y, 29]
    MyCqListener::OnEvent(DESTROY) called with key Order6, value null
    MyCqListener::close called
    
  4. Run the stopserver.ps1 script to gracefully shutdown the Geode cluster.

    For Windows cmd:

    $ powershell.exe -File stopserver.ps1
    

    For Windows Powershell:

    $ stopserver.ps1