Any example to have a java class instance to call once and use in all scenarios in karate with different feature files - karate

Question

I have been using DBUtils class from karate demo, i knew this class was nothing to deal with karate. I have a concern like an example which was given has DBUtlis class is called in background for each and every scenario and it should be mentioned in all featurefiles Background:.
Anything like we configure once and use that DB instance variable in all scenarios?? If yes examples please.
Update after below comment by peter:
config:
Main Feature File:
Reusing DB instance in another feature file
Please confirm whether this is right approach or not?
Dry Run for a String:
var result = karate.callSingle('classpath:featureFiles/dbBackground.feature', config);
config.PersonName = result.name;
Main Feature:
Feature: DB Background
Background:
* def name = "Sandeep";
Other feature:
Feature: Get Account Details
Background:
* def actualname = PersonName;
#golden
Scenario: user 1 details
* def expectedFormat = read('../requestFiles/format.json')
Given url 'https://reqres.in/api/users'
And params ({id: '1'})
When method Get
Then match response.data.email == "george.bluth#reqres.in"
Then print '###################################name is: ', actualname
Then print '###################################name is: ', PersonName
Console result seeing null:
Updated Dry run 2:
Feature: DB Background
Background:
* def name = "Sandeep";
#golden
Scenario: user sample details
* def expectedFormat = read('../requestFiles/format.json')
Given url 'https://reqres.in/api/users'
And params ({id: '1'})
When method Get
Then match response.data.email == "george.bluth#reqres.in"
output:
19:31:33.416 [ForkJoinPool-1-worker-0] DEBUG com.jayway.jsonpath.internal.path.CompiledPath - Evaluating path: $['data']['email']
19:31:33.416 [ForkJoinPool-1-worker-0] INFO com.intuit.karate - [print] ###################################name is: Sandeep
19:31:33.432 [ForkJoinPool-1-worker-0] INFO com.intuit.karate - [print] ###################################name is: Sandeep

Answer 1

Yes you can initialize it in karate-config.js and then it will be a global variable.
Also look at karate.callSingle(): https://github.com/intuit/karate#hooks