coffeepot-bean-wr

Coffeepot-bean-wr is a simple Java framework for marshalling Java beans to flat file.

Features:

• Support for delimited and fixed length formats.
• Uses Java annotations for mapping.
• Custom type handlers are supported.

Download jar file: https://sourceforge.net/projects/coffeepotbeanwr/

An example:

//Mapping a class
@Record( 
  fields = {
    @Field(name = "", constantValue = "PERSON"),
    @Field(name = "name"),
    @Field(name = "age"),
    @Field(name = "birth", params = {"dd/MM/yyyy"}),
    @Field(name = "children"),
    @Field(name = "", getter = "childrenCount", classType = Integer.class)
})
public class Person{
	private String name;
	private int age;
	private Date birth;
	private List<Child> children;
	
	//.. getters and setters
	
    public Integer childrenCount() {
        if (children == null) {
            return 0;
        }
        return children.size();
    }	
}

@Record(fields = {
    @Field(name = "", constantValue = "CHILD"),
    @Field(name = "name", params = {"CharCase.UPPER"}),
    @Field(name = "age")
})
public class Child {
    private String name;
    private int age;
	
	//... getters and setters
}

//Test Class
public class Test{
	public static void main(String[] args) {
		Writer w = new FileWriter("C:\\TEST_DELIMITED.TXT");
		DelimitedWriter objWriter = new DelimitedWriter(w);
		objWriter.setDelimiter(';');	
		objWriter.setRecordTerminator("\r\n");
		
		List<Child> children = new LinkedList<>();
		Child child = new Child();
		child.setName("John");
		child.setAge(14);
		children.add(child);

		child = new Child();
		child.setName("Ana");
		child.setAge(11);
		children.add(child);
		
		Person person = new Person();
		person.setName("Jack");
		person.setAge(35);
		person.setBirth(new Date());
		person.setChildren(children);
		
		objWriter.write(person);
		objWriter.flush();
		objWriter.close();	
	}
}

Output:

PERSON;Jack;35;01/01/1978
CHILD;JOHN;14
CHILD;ANA;11
2