Using the Gosu scratchpad
Use the Gosu scratchpad to execute Gosu programs and evaluate Gosu expressions. Instead of needing to perform PolicyCenter operations to trigger your Gosu code, you can run your code directly in the Scratchpad and see immediate results.
or Debug
buttons, then the code compiles and runs locally in Studio with
different behavior. Most notably, the behavior of null safety for properties in the period
operator is different. In nearly all other contexts in Studio, the period operator is
null safe for properties. However, in Gosu Scratchpad in Studio, Gosu is not null-safe. Code
that might not throw an exception in a Gosu class might throw an exception in Gosu Scratchpad.
If Studio is connected to a server running with a DCEVM and you click Run in Debug Process
, then Studio sends the Gosu code to the server. The PolicyCenter server uses the standard null-safe behavior for the period
operator. Run the Gosu scratchpad
Before you begin
To execute queries against the database in Studio or the Gosu scratchpad, you must first connect to a running application server.
About this task
The result of a query is always a read-only query object. To work with this read-only object, you must add it to a transaction bundle.
You can test the following in the Gosu scratchpad:
Code |
Description |
|---|---|
Expression |
Returns the result of evaluating the (single-line) expression. |
Program |
Displays the output
of the program, including calls to |
- To run the Gosu scratchpad, click
.
Executing code in the Gosu scratchpad
Procedure
.Accessing application data in the Gosu scratchpad
You can always use the Gosu scratchpad to test generic Gosu code. If the scratchpad code needs to access application data, then the PolicyCenter server must be running in debug mode. For example, the following code accesses group and user entities, and therefore requires access to the application server:
var group : Group = Group(2)
for (var member in group.Members) {
print(member.User.Contact.LastName)
}To access application data in the Gosu scratchpad, run the PolicyCenter server in debug mode, and then instruct the scratchpad to run your code in that process. The DCEVM must be installed on the server. For information on running the PolicyCenter server in debug mode, see Testing PolicyCenter with Guidewire Studio.
See also
Run scratchpad code in the application server debug process
Procedure
.