How to import a file of classes in a Jenkins Pipeline?

Question

I have a file that contains classes. Example :

---

abstract class TestBase
{
    String name
    abstract def fTest()

    def bobby(){
        return \"b         


        

Answer 1

you can do like this:

Classes.groovy

class A{
    def greet(name){ return "greet from A: $name!" }
}

class B{
    def greet(name){ return "greet from B: $name!" }
}

// this method just to have nice access to create class by name
Object getProperty(String name){
    return this.getClass().getClassLoader().loadClass(name).newInstance();
} 

return this

pipeline:

node{
    def cl = load 'Classes.groovy'
    def a = cl.A
    echo a.greet("world A")
    def b = cl.B
    echo b.greet("world B")
}