CCL Editor Authoring

The CCL editor is a text authoring environment within ESP Studio for editing CCL code.

You can work in the CCL editor exclusively, or use it as a supplement to the Visual editor. The CCL editor offers syntax completion options, syntax checking, and error validation.

A single CCL file can be open in only one editor at a time. The Visual and CCL editors are completely integrated: when you save and switch to the other editor, your work is saved there as well.

Most users new to Event Stream Processor find it easier to get started in the Visual editor. As you gain experience with the product, and learn to successfully compile and run a simple project, you may want to use the CCL editor to add advanced features to your projects.

For example, you can add:

Complex queries that exceed the capabilities of the Visual editor
DECLARE blocks for declaring project variables, parameters, datatypes, and functions
SPLASH event handlers that you invoke with Flex operators
User-defined functions
Reusable modules and schemas that can be used multiple times in a project, or across projects

For CCL language details, see the CCL Programmers Guide.

Editing in the CCL Editor
Update and edit CCL code as text in the Studio CCL editor.
CCL Editor Features
Several features simplify the process of editing CCL code in the Studio CCL editor.
Keyboard Shortcuts in the CCL Editor
Use keyboard shortcuts to access various functions quickly within the CCL editor.
Searching for Text
Find text in CCL code.
Queries in CCL
CCL queries are attached to derived streams or windows to select data from one or more inputs and transform it into the desired output.
Creating a Schema in the CCL Editor
Enter a CREATE SCHEMA statement using the CCL editor to provide users with a shared schema object that can be referenced from any number of streams or windows.
Functions
A function is a self-contained, reusable block of code that performs a specific task.
Operators
CCL supports a variety of numeric, nonnumeric, and logical operator types.
Adding Tooltip Comments for the Visual Editor in CCL
Write comments in CCL that appear as tooltips for shapes in the Visual editor.