For a concise list of terms, please refer to the Bookshelf.
The 3tcollect utility is a command-line tool that you can execute on the
Backbone Fabric Controller (BFC) or the grid controller to collect log and configuration data.
An appliance is a self-contained virtual environment that provides a particular function inside an application. Appliances can be simple or assemblies.
An application boundary is the class boundary of the application as an appliance class (the predefined singleton class).
Application Description Language (ADL) is a structure description language that is used to capture the design of distributed applications in CA AppLogic.
ADL is used to represent application infrastructure in text form and is semantically equivalent to XML, but is more suitable for humans. For more information, see the ADL Reference Guide.
An application instance is a copy of an application that is fully configured and can be run on the grid.
An application template is a partially configured application that is used as a template for provisioning application instances.
An application volume is a named virtual volume that is attached directly to an application.
You use application volumes to deploy HTML files, static content, scripts, code, and databases that are specific to the application.
You usually use an application volume with a virtual appliance that is configured with the name of the volume and a directory path on that volume from which the appliance accesses the content it requires.
An assembly is an appliance that is composed of other appliances. An assembly is a packaged structure of interconnected appliances that you can manufacture on demand and use in the same way as you use an appliance.
The assembly support is hierarchical, letting you create assemblies of assemblies of assemblies, and so on.
In appliances, an attribute is a value that affects the way the system schedules and runs the appliance (contrast with property).
In ADL, an attribute is a language construct that programmers use to add additional information (such as metadata) to code elements (such as assemblies, modules, members, types, return values, and parameters) to extend their functionality.
For more information, see the ADL Reference Guide.
The Backbone Fabric Controller (BFC) is a browser-based tool for creating, managing, and modifying CA AppLogic grids.
The boundary is everything necessary to configure the appliance bind it to data on external storage volumes, and connect it to other appliances.
The boundary property is a property that is defined on the boundary of a class or assembly.
The boundary volume is a placeholder volume that is defined on the boundaryof a class or assembly.
A catalog is a library package that contains one or more appliance classes.
See also global catalog and local catalog.
The class boundary is all attributes of a class visible from outside of CA AppLogic.
The class boundary of CA AppLogic appliances includes the class name, terminals, volumes, resources and properties.
Both simple appliances and assemblies have boundaries. See also application boundary. Contrast with the interior.
A grid is a collection of servers that host CA AppLogic applications.
The server collection is a system that runs on a server array assembled from commodity servers connected using a gigabit ethernet switch.
Some (or all) of the servers are expected to have directly attached storage - inexpensive IDE/ATA/SATA hard drives that CA AppLogic uses to provide a distributed storage pool for applications.
Singleton class: A singleton or a singleton class is a class that is limited to a single instance at any one time. Singleton classes:
Are used to create new custom appliances derived from existing appliance instances. A singleton class is created by branching an instance of an appliance.
Are designated by an S in the upper-right corner. If an appliance does not have the S in its upper-right corner, the appliance is an appliance instance.
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