Example: Write dynamic columns, fields (with Collection or Array)

CSV Bean

package my.package1;

@CsvType
public class MyCsvBean{
  
  @CsvField(position=1)
  private String name;

  @CsvField(position=2)
  private String address;

  @CsvField(position=3)
  private int numberOfPerson;

  @CsvField(position=4)
  @CsvFormat(type=TYPE_FORMAT.BOOLEAN, pattern="boolean")
  private int[] numbers;

  @CsvField(position=5, deleteIfNull=true)
  private Collection<String> collections;

  public String getName(){
    return name;
  }

  public String getAddress(){
    return address;
  }

  public int getNumberOfPerson(){
    return numberOfPerson;
  }

  public int[] getNumbers(){
    return numbers;
  }

  public Collection<String> setCollections(){
    return collections;
  }

  public void setAddress(String address){
    this.address = address;
  }

  public void setName(String name){
    this.name = name;
  }

  public void setNumberOfPerson(int numberOfPerson){
    this.numberOfPerson = numberOfPerson;
  }

  public void setNumbers(int[] numbers){
    this.numbers = numbers;
  }

  public void setCollections(Collection<String> collections){
    this.collections = collections;
  }
}

Writer Class

package my.package1;


public class MyMain{

   public static MyCsvBean getBean(){
     final MyCsvBean bean = new MyCsvBean();
     bean.setName("my name");
     bean.setAddress("my address");
     bean.setNumberOfPerson(10);
     bean.setNumbers({1, 0, 1, 1});
     bean.setCollections(Arrays.asList({"A", "B", null, "D"}));
     return bean;
   }

   public static void main (String[] args){
     final FactoryCsvWriter factory = new FactoryCsvWriter("my.package1");
     final CsvWriter writer = factory.createCsvWriter(MyCsvBean.class, "/tmp/myfile.csv");

     MyCsvBean bean = getBean();
     writer.write(bean);

     
     bean.setNumbers({0, 1});
     bean.setCollections(Arrays.asList({"N", "O"}));
     writer.write(bean);

     write.close();
   }

}

Result

Content of File: /tmp/myfile.csv

my name,my address,10,true,false,true,true,A,B,D
my name,my address,10,false,true,N,O