What is the significance of defining application top in oracle apps

You include your application basepath in your application environment files and register it with Oracle Application Object Library when you register your application name. When you develop your application components, you must place them in the appropriate directories on the appropriate machines so that Oracle Application Object Library can find them. For example, reports written using Oracle Reports are typically placed in a subdirectory called reports on the concurrent processing server machine, while forms belong in separate subdirectories, depending on their territory and language such as US for American English, D for German, and so on , on the forms server machine.

The directory structure you use for your application depends on the computer and operating system platform you are using, as well as the configuration of Oracle E-Business Suite at your site. For example, you may be using a configuration that includes a Unix database server a separate Unix concurrent processing server, a Microsoft Windows NT forms server, and Web browsers on PCs, or you may be using a configuration that has the database and forms server on the same Unix machine with Web browsers on PCs.

These configurations would have different directory setups. See your Oracle E-Business Suite Concepts manual for directory setup information for your particular platforms and configuration. For a description of the contents and purpose of each of the subdirectories, see your Oracle E-Business Suite Concepts manual. You must register your application name, application short name, application basepath, and application description with Oracle Application Object Library.

Oracle Application Object Library uses this information to identify application objects such as responsibilities and forms as belonging to your application. Apps Schema: It is used to connect the all schemas to get the information from The database. What is Token? Each responsibility has a menu assigned to it. A function is a part of an application that is registered under a unique name for the purpose of assigning it to be including it from a menu.

If the list of values needed to be dynamic and ever changing and define a table based values set. In the program unit. Place the. Open the. Open the data module and modify the query what is client requirements assign the columns to the attributes. Go to report wizard and select, what r the newly created columns. Then Compile it. Then u will get a.

If it is not in the specified directory then we have to put in the server directory. Add and assign a concurrent program to a request group. Used to capture the additional business information. To provide expansion space on your form With the help of [].

Used for entering and displaying key information For example Oracle General uses a key Flex field called Accounting Flex field to uniquely identify a general account.

Confine mode : On: child objects cannot be moved outside their enclosing parent objects. Off: child objects can be moved outside their enclosing parent objects. Flex mode: On: parent borders "stretch" when child objects are moved against them. Off: parent borders remain fixed when child objects are moved against them. A placeholder is a column is an empty container at design time. You can set the value of a placeholder column is in a Before Report trigger.

Store a Temporary value for future reference. Store the current max salary as records are retrieved. A formula column performs a user-defined computation on another column s data, including placeholder columns.

A summary column performs a computation on another column's data. You can also create a summary column manually in the Data Model view, and use the Property Palette to create the following additional summaries: first, last, standard deviation, variance. Oracle Trading Community Architecture TCA is a data model that allows you to manage complex information about the parties, or customers, who belong to your commercial community, including organizations, locations, and the network of hierarchical relationships among them.

This information is maintained in the TCA Registry, which is the single source of trading community information for Oracle E-Business Suite applications.

Difference between Application Developer and System Administrator? Role of Technical Consultant: a. Designing New Forms, Programs and Reports b. Forms and Reports customization c. Developing Interfaces d. Note: There is no concept of an Administration server in Release By default, patching can be undertaken from any application tier node.

It is advisable to avoid using a mixture of different platforms on your application tier. This makes maintenance easier, since only one set of patches needs to be downloaded. The application tier supports load balancing among many of its servers and services to help provide higher availability, fault tolerance, reliability, and optimal scalability.

If you have more than one of any of the following types of server, load balancing can be employed:. The Oracle E-Business Suite modules packaged in the file formsapp. The Oracle Application Server The Web services component of Oracle Application Server processes requests received over the network from the desktop clients, and includes the following components:.

If possible, the Web server services the requests itself, for example by returning the HTML to construct a simple Web page. If the page referenced by the URL needs advanced processing, the listener passes the request on to the servlet engine , which contacts the database server as needed.

It consists of a Java-based application tier framework and associated services, designed to facilitate the rapid deployment of HTML-based applications. It also provides a mechanism for mapping relational tables to Java objects, and allows the separation of the application business logic from the user interface.

It provides the Oracle Application Framework with its connection to the database, and with application-specific functionality such as flexfields. The Framework-based applications logic is controlled by procedures that execute through the Java servlet engine, which is provided by the Apache JServ module. The servlet engine uses the metadata dictionary in constructing the Framework UI.

The page definition metadata UI definition is loaded from the metadata repository on the database tier into the application tier. The Java Controller programmatically manipulates the page definition as necessary, based on dynamic UI rules. By default, Forms services in Oracle E-Business Suite Release 12 are provided by the Forms listener servlet , which, as described further below, facilitates the use of firewalls, load balancing, proxies, and other networking options.

It hosts the Oracle E-Business Suite forms and associated runtime engine, mediating the communication between the desktop client and the Oracle database server, displaying client screens, and initiating changes in the database according to user actions. The Forms listener servlet caches data and provides it to the client as needed, for example when scrolling through multiple order lines that exceed the limitations of a single screen.

The Forms listener servlet communicates with the Oracle database server using the Oracle Net networking infrastructure. The Forms listener servlet manages the creation of a Forms runtime process for each client, as well as network communications between the client and its associated Forms runtime process.

In the traditional Forms server socket mode architecture, when a user initiates an action in the Forms client applet such as entering data into a field or clicking a button , data is passed to a Forms server on the application tier. The user interface logic runs in the Forms server, and determines the appropriate user interface effect based on the user's action. For example, a window may open, or another field value may be populated. If necessary, the database tier is contacted for any data not already cached on the application tier, or for data-intensive processing.

Once a connection has been made, many operations can be performed with little or no further interaction with the Forms server. For example, when a few field values change in response to a user action, there is no need to update the entire screen. In this scenario, only the changed fields are updated with the new values. However, socket mode is still supported, and may be useful in high-latency, bandwidth-constrained WAN environments. This promotes more effective integration between heterogeneous applications, and facilitates the development and execution of complex business processes into flexible and reusable Web services.

These specialized Java classes are categorized as a subtype of Java interface, and can be service-enabled through SOA Provider. As this container handles registration, generation, deployment, security and execution of Forms services, clients see the end-point alone, without even having to be aware that Forms is the source. As described previously, user interactions with Oracle E-Business Suite data can be conducted via HTML-based applications or the more traditional Forms-based applications.

However, there are also reporting programs and data updating programs that need to run either periodically, or on an ad hoc basis. These programs, which run in the background while users continue to work on other tasks, may require a large number of data-intensive computations, and are run using the Concurrent Processing architecture. Concurrent Processing is an Oracle E-Business Suite feature that allows these non—interactive and potentially long-running functions to be executed efficiently alongside interactive operations.

It uses operating system facilities to enable background scheduling of data- or resource-intensive jobs, via a set of programs and forms. To ensure that resource-intensive concurrent processing operations do not interfere with interactive operations, they are run on a specialized server, the Concurrent Processing server. Processes that run on the Concurrent Processing server are called concurrent requests.

When you submit such a request, either through HTML-based or Forms-based applications, a row is inserted into a database table specifying the program to be run. A concurrent manager then reads the applicable requests in the table, and starts the associated concurrent program. Concurrent managers are fundamental to concurrent processing. Acting as a job scheduling and execution system, a concurrent manager:.

Is an executable that is registered as a program library within Oracle E-Business Suite, and which runs in its own operating system process. Runs operating system processes called target processes often referred to as workers , each of which can start one concurrent program at a time. Operates during the days and times defined by a work shift. Specialist Concurrent Managers As well as the general-purpose concurrent managers described in the previous section, there are a number of specialized concurrent managers.

It administers the startup and shutdown of managers as defined by their work shift, monitors for process failure, and cleans up if a failure occurs. While the basic ICM definition should not be changed, you can if required modify the sleep time number of seconds the ICM waits between checking for new concurrent requests , PMON process monitor cycle time number of sleep cycles the ICM waits between checking for failed workers , and queue size duration between checks for number of active workers, measured in PMON cycles.

If Parallel Concurrent Processing described below is being used, you can also set some options for this. The Conflict Resolution Manager CRM enforces rules designed to ensure that incompatible concurrent requests do not run in the same conflict domain an abstract representation of the groupings used to partition data. As with the Internal Concurrent Manager, the basic CRM definition should not be changed, but you can modify the sleep time for each work shift, as well as some Parallel Concurrent Processing options.

The Standard Manager as shipped with Oracle E-Business Suite will accept and run any concurrent requests, as it has no specialization rules that would restrict its activities. Consequently, the definition of the Standard Manager should not be altered without careful planning, otherwise some programs might not be able to run at all.

Jobs should only be excluded from the Standard Manager after ensuring they can be run by an alternative manager, such as a product-specific manager or user-defined manager. Transaction Managers support synchronous request processing, whereby a pool of server processes responds to requests from client programs. Instead of polling the concurrent requests table to obtain instructions, a transaction manager waits to be signaled by a client.

An example is approval of an order, where execution of the request must take place quickly. The relevant transaction manager program runs on the server, transparently to the client. All transaction programs for a given manager process run in the same database session. Communication between the client and the server is conducted synchronously via Advanced Queueing. At the end of program execution, the client program receives a completion message and a return value, for example denoting approval of the order.

This strategy of using non-persistent connections between the client and Transaction Manager processes enables a small pool of server processes to service a large number of clients with near real-time response. Some of the key steps include:. Tip: It is easier to identify the optimum number of workers by being conservative initially, and defining additional workers later if needed subject to availability of system resources. Multiple managers can be run on multiple nodes using Parallel Concurrent Processing , as described below.

In Concurrent Processing, programs are run as operating system background processes. These programs may be written using a variety of Oracle tools, programming languages for executables, or the host operating system scripting language. As noted above, a concurrent program that runs in the concurrent manager's own operating system process is known as an immediate program. In contrast, a concurrent program that runs in a child process of the concurrent manager process is known as a spawned program.

All reports are run through the Concurrent Processing server manager via the rwrun executable, which spawns an in-process server. This is in contrast to earlier releases of Oracle E-Business Suite, which used the now-obsolete Reports server. Microsoft Office Expand child menu Expand.

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