MqContextC - the class known as ctx or context is the application-handle of the application-server and also the main data-handle … More...
Collaboration diagram for MqContextC_PY_API:
Topics | |
| MqContextC_Class_PY_API | |
| MqContextC - define the class … | |
| MqContextC_TOR_PY_API | |
| MqContextC - various functions to create, initialize and destroy a context … | |
| MqContextC_ClassApi_PY_API | |
| MqContextC - access data related to the factory-type of the object … | |
| MqContextC_Link_PY_API | |
| MqContextC - setup and manage a client-server-link … | |
| MqContextC_SlaveApi_PY_API | |
| MqContextC - create and manage a slave context … | |
| MqContextC_SendApi_PY_API | |
| MqContextC - construct an outgoing send-data-package … | |
| MqContextC_ReadApi_PY_API | |
| MqContextC - extract data from an incoming read-data-package … | |
| MqContextC_Proxy_PY_API | |
| MqContextC - copy data from the read-data-package of the sourceCtx to the send-data-package of the targetCtx | |
| MqContextC_Route_PY_API | |
| MqContextC - setup and manage a routing-link … | |
| MqContextC_Service_PY_API | |
| MqContextC - create and manage a service … | |
| MqContextC_StorageApi_PY_API | |
| MqContextC - setup and manage a storage used to persist data-packages … | |
| MqContextC_High_PY_API | |
| MqContextC - User friendly replacement for the MqContextC_SendApi_C_API and the MqContextC_ReadApi_C_API … | |
| MqContextC_Env_PY_API | |
| MqContextC - protect and restore the service-environment … | |
| MqContextC_Error_PY_API | |
| MqContextC - move and copy an error from a context … | |
| MqContextC_Log_PY_API | |
| MqContextC - log the output to a string or a MkLogFileC … | |
| MqContextC_Filter_PY_API | |
| MqContextC - modify the data using the filter-technology … | |
| MqContextC_Misc_PY_API | |
| MqContextC - various functions to work on a context … | |
Detailed Description
MqContextC - the class known as ctx or context is the application-handle of the application-server and also the main data-handle …
PY: None ctx.Debug2(prefix:str, ?obj=self:object?)"</TT>
PY: <tt>None ctx.Debug(prefix:str, obj=self:object)"
The context is the package-item with the required features and created by the implementation-layer-programmer. The context can be a client or a server.
- HOWTO client-context
The client-context-creation is triggerd by the software-workflow on demand. The client is calling the MqLinkCreate to create a connection to the server using the connection-arguments to specify the target.
The life-cycle of a client is:
ContextCreate create and initialize the MqContextC ... LinkCreate make ctx to a parent-context and setup a new client-server-link … SendTT MqContextC - append a native PRIMITIVE TYPE value to the send-data-package … ReadTT read a PRIMITIVE TYPE from the read-data-package … LinkDelete close the client-server-link … ContextDelete Destructor - delete a MqContextC instance … Exit delete the context and exit the current process or thread … - HOWTO server-context
The server-context-creation is always triggerd by the MqLinkCreate command of the client. The server is usually using a factory-constructor to call the MqContextCreate and finally to call the MqContextDelete.
The server-context is fully under control of the client.The life-cycle of a server is:
SETUP define a class and add the setup/cleanup code MqServerSetupIF define the server-setup-interface (callback) used on startup … ServiceCreate create a link between a service-token and a service-callback … MqServerCleanupIF define the server-cleanup-interface (callback) used on cleanup … ServiceDelete delete a service. … STARTUP define the factory and start the listener FactoryAdd Add a new MqFactoryC identified by factory-identifier and defined by factory-constructor … FactoryNew create a new MqContextC from a MqFactoryC … LinkCreate make ctx to a parent-context and setup a new client-server-link … ProcessEvent enter the event-loop and wait for an incoming service-request. … WORK process the service-calls and exit on end ReadTT read a PRIMITIVE TYPE from the read-data-package … SendTT MqContextC - append a native PRIMITIVE TYPE value to the send-data-package … Exit delete the context and exit the current process or thread …
MqContextC CTOR and DTOR
| command | alias |
|---|---|
[constructor,static] MqContextC MqContextC.Create(?tmpl:MqContextC=None?) | pymkmsgque.MqContextC(?tmpl:MqContextC=None?) |
[destructor] ctx.Delete() | ctx = None |
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