OMB*Plus Concepts

The OMB*Plus scripting language is built around a Java extension of the Tcl language called Jacl. OMB*Plus provides Tcl-based basic language features such as variables, procedures, and control structures. Additionally, OWB-specific command syntax provides scripting commands for batch processing and for manipulating the user interface in OWB:

• The OMB-prefixed commands ('B' for batch component).

• The OMU-prefixed commands ('U' for UI component).

You can write syntactic constructs such as variable support, conditional and looping control structures, error handling, and standard library procedures. You can also use Tcl to perform tasks on the host that is running Design Center, such as file system I/O.

A key benefit of OMB*Plus is its extensibility. For example, you can execute SQL*Plus statements and use PL/SQL packages from OMB*Plus.

You can use the OMB*Plus scripting interface to:

• Perform complex actions directly in OWB, without launching the OWB client user interface.

• Define sets of routine operations to be executed in OWB.

• Query OWB repository metadata and report or act on the results.

• Perform OWB batch operations.

• Automate a series of conditional operations in OWB.

OMB*Plus is accessed as described in these topics:

• OMB*Plus from the Design Center

• OMB*Plus from the Command Line