topic EngineInitializer in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/engineinitializer/m-p/572457#M15422 <HTML><HEAD></HEAD><BODY><SPAN>I believe I am having some threading issues and I'm wondering if EngineInitializer can help me.&nbsp; I am using the Java APIs for ArcObjects.&nbsp; I have a class with a bunch of static methods that interact with some custom extensions written in VB.NET.&nbsp; These java methods perform functions like connecting to ArcMap and loading my extensions, loading a project, loading a layer, shutting down the application and others.&nbsp; These methods can be called by different java threads.&nbsp; Currently, only the method that connects to ArcMap calls the EngineInitializer.initializeEngine().&nbsp; I'm wondering if all of the methods should call the EngineInitializer.&nbsp; I need all ArcObject calls to use the same thread so that the Shared variables in my extensions are shared across all users to maintain the state of the extensions.&nbsp; The documentation doesn't provide a very technical description of what the EnginInitializer does but I thought I saw on some charts a while back that it ensures all ArcObject calls use the STA model.</SPAN></BODY></HTML> Thu, 24 Feb 2011 13:01:56 GMT KenSimoncic 2011-02-24T13:01:56Z EngineInitializer https://community.esri.com/t5/arcobjects-sdk-questions/engineinitializer/m-p/572457#M15422 <HTML><HEAD></HEAD><BODY><SPAN>I believe I am having some threading issues and I'm wondering if EngineInitializer can help me.&nbsp; I am using the Java APIs for ArcObjects.&nbsp; I have a class with a bunch of static methods that interact with some custom extensions written in VB.NET.&nbsp; These java methods perform functions like connecting to ArcMap and loading my extensions, loading a project, loading a layer, shutting down the application and others.&nbsp; These methods can be called by different java threads.&nbsp; Currently, only the method that connects to ArcMap calls the EngineInitializer.initializeEngine().&nbsp; I'm wondering if all of the methods should call the EngineInitializer.&nbsp; I need all ArcObject calls to use the same thread so that the Shared variables in my extensions are shared across all users to maintain the state of the extensions.&nbsp; The documentation doesn't provide a very technical description of what the EnginInitializer does but I thought I saw on some charts a while back that it ensures all ArcObject calls use the STA model.</SPAN></BODY></HTML> Thu, 24 Feb 2011 13:01:56 GMT https://community.esri.com/t5/arcobjects-sdk-questions/engineinitializer/m-p/572457#M15422 KenSimoncic 2011-02-24T13:01:56Z