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  2. Data mapper pattern - Wikipedia

    en.wikipedia.org/wiki/Data_mapper_pattern

    A Data Mapper is a Data Access Layer that performs bidirectional transfer of data between a persistent data store (often a relational database) and an in-memory data representation (the domain layer). The goal of the pattern is to keep the in-memory representation and the persistent data store independent of each other and the data mapper itself.

  3. Web Server Gateway Interface - Wikipedia

    en.wikipedia.org/wiki/Web_Server_Gateway_Interface

    The Web Server Gateway Interface (WSGI, pronounced whiskey [1] [2] or WIZ-ghee [3]) is a simple calling convention for web servers to forward requests to web applications or frameworks written in the Python programming language. The current version of WSGI, version 1.0.1, is specified in Python Enhancement Proposal (PEP) 3333. [4]

  4. Ignition SCADA - Wikipedia

    en.wikipedia.org/wiki/Ignition_SCADA

    Ignition uses an implementation of Python version 2.5 called Jython. Python script is used for component Event Handling. An example of this would be opening a popup window when a user clicks on a graphic object. Another common use are event scripts such as a timer that checks for alarms or a logon script.

  5. Asynchronous Server Gateway Interface - Wikipedia

    en.wikipedia.org/wiki/Asynchronous_Server...

    It is built as a successor to the Web Server Gateway Interface (WSGI). Where WSGI provided a standard for synchronous Python application, ASGI provides one for both asynchronous and synchronous applications, with a WSGI backwards-compatibility implementation and multiple servers and application frameworks.

  6. Shard (database architecture) - Wikipedia

    en.wikipedia.org/wiki/Shard_(database_architecture)

    A database shard, or simply a shard, is a horizontal partition of data in a database or search engine. Each shard may be held on a separate database server instance, to spread load. Some data in a database remains present in all shards, [a] but some appears only in a single shard. Each shard acts as the single source for this subset of data.

  7. Open Database Connectivity - Wikipedia

    en.wikipedia.org/wiki/Open_Database_Connectivity

    For instance, the same MySQL driver can be used to connect to any MySQL server, but the connection information to connect to a local private server is different from the information needed to connect to an internet-hosted public server. The DSN stores this information in a standardized format, and the DM provides this to the driver during ...

  8. Celery (software) - Wikipedia

    en.wikipedia.org/wiki/Celery_(software)

    Celery is written in Python, but the protocol can be implemented in any language. It can also operate with other languages using webhooks. [4] There is also a Ruby-Client called RCelery, [5] a PHP client, [6] a Go client, [7] a Rust client, [8] and a Node.js client. [9] Celery requires a message broker to run.

  9. Table data gateway - Wikipedia

    en.wikipedia.org/wiki/Table_Data_Gateway

    Table Data Gateway is a design pattern in which an object acts as a gateway to a database table. [1] The idea is to separate the responsibility of fetching items from a database from the actual usages of those objects. Users of the gateway are then insulated from changes to the way objects are stored in the database.