Working with Builders ObjectGraphBuilder in Groovy Scripting groovy training telugu 64

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//objgraph.groovy

import groovy.transform.ToString

@ToString(includeNames = true)

class Book{

    String title

    String summary

    List<Section> sections =[]

}

@ToString(includeNames = true)

class Section{

    String title

    List<Chapter> chapters =[]

}

@ToString(includeNames = true)

class Chapter{

    String title

}

//Java Style

/*public Book createBook(){

    Book b=new Book();

    b.setTitle("My Book")

    b.setSummary("My Summary")

    Section s =new Section();

    s.setTitle("Section 1")

    Chapter c1=new Chapter();

    c1.setTitle("Chapter 1");

    Chapter c2=new Chapter();

    c2.setTitle("Chapter 2");

    s.addChapters(c1,c2);

    b.getSections().add(s)

    return book;

   }

 */

ObjectGraphBuilder builder= new ObjectGraphBuilder()

def book= builder.book(

    title:"Groovy is Action ",

    summary:"Groovy is  section "){

    section(title:"Section 1"){

        chapter(title:"Chapter 1")

        chapter(title:"Chapter 2")

        chapter(title:"Chapter 3")

    }

    section(title:"Section 2"){

        chapter(title:"Chapter 4")

        chapter(title:"Chapter 5")

        chapter(title:"Chapter 6")

    }

}

println book