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Intro - Promises to show start-up evolution/road-map so you can better capitalize on these patterns.

Efficiency becomes critical discipline at a start-up as resources, time and money are often limited.

1. Create:
  Best ideas aren't manufactured, superior technology does not automatically produce superior products, and that products succeed because they solve real problems or provide real new opportunities.
 Find an idea, form the team and raise money. Mistakes here are often costly.

2. Release:
   Don't suffer from perfectionism
   Listen the hardest (positive/negative feedback)
   Avoid going too low or too high in this phase

3. Morph:
     Being flexible if pivot or build on top

4. Model
   Nail the business model, should generate cash and will increase if more money is thrown.
   Strong business model characteristics
      High margins, Low friction, High leverage, Network effects, Repeatable, Scalable

5. Scale
   Leave behind small and insular mentality. Assemble the people, processes, and money.
   Avoid lowball buyout offer

6. Harvest


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JPA 2 new feature @ElementCollection explained

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Example 1: Stores list of Strings in an Entity

public class Users implements Serializable {

    private static final long serialVersionUID = 1L;
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    private List<String> certifications = new ArrayList<String>();

    public Long getId() {
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    public void setId(Long id) { = id;

    public List<String> getCertifications() {
        return certifications;

    public void setCertifications(List<String> certifications) {
        this.certifications = certifications;

        Users u = new Users();
        u.getCertifications().add("Sun Certified Java Programmer");

Generated Tables

Column --> ID
    Row             1


Validating CSV Files

What is CsvValidator ?
  A Java framework which validates any CSV files something similar to XML validation using XSD.

Why should I use this ?
  You don't have to use this and in fact its easy to write something your own and also checkout its source code for reference.

Why did I write this ?
  Some of our projects integrate with third party application which exchanges information in CSV files so I thought of writing a generic validator which can be hooked in multiple projects or can be used by QA for integration testing.

What is the license clause ?

Are there any JUnit test cases for me checkout ?
 Yes, source

How to integrate in my existing project ?

Just add the Jar which can be downloaded from here CsvValidator.jar and you are good.

Instantiate CsvValidator constructor which takes these 3 arguements

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