need4spd

import org.apache.commons.pool2.impl.GenericObjectPool;

public class TestPool {
    public static void main(String[] args) throws Exception {

        for(int i = 0; i < 10; i++) {

            GenericObjectPool genericObjectPool = new GenericObjectPool(new MyPoolableObjectFactory());
            MyPoolableObject obj = (MyPoolableObject)genericObjectPool.borrowObject();
            System.out.println("i : " + i);

need4spd

import org.apache.commons.pool2.BasePooledObjectFactory;
import org.apache.commons.pool2.PooledObject;
import org.apache.commons.pool2.impl.DefaultPooledObject;

public class MyPoolableObjectFactory extends BasePooledObjectFactory<MyPoolableObject> {

    @Override
    public MyPoolableObject create() {
        return new MyPoolableObject();

need4spd

public class MyPoolableObject {     
  private static int id = 0;      
  public MyPoolableObject() {         id++;     }      
  public int getId() {         return id;     } 
}

need4spd

import java.util.concurrent.*;

public class FutureAndCallableExample {
    public static void main(String[] args) throws InterruptedException, ExecutionException {
        System.out.println("Main : " + Thread.currentThread().getName());

        ExecutorService executorService = Executors.newSingleThreadExecutor();

        Callable<String> callable = () -> {
            System.out.println("Entered Callable");

need4spd

find . -name build | xargs rm -rf

need4spd

-- create install usb on OSX
http://computers.tutsplus.com/tutorials/how-to-create-a-bootable-ubuntu-usb-drive-for-pc-on-a-mac--cms-21187
http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx

-- 한영전환
http://blog.daum.net/bagjunggyu/154

-- install vmware horizon client
http://vdisage.blogspot.kr/2015/01/installing-horizon-view-320-client-on.html

need4spd

// create file:
sudo vim /usr/share/applications/intellij.desktop
 
// add the following
[Desktop Entry]
Version=13.0
Type=Application
Terminal=false
Icon[en_US]=/home/rob/.intellij-13/bin/idea.png
Name[en_US]=IntelliJ

need4spd

import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import lombok.Data;
import org.junit.Before;
import org.junit.Test;

import javax.annotation.Nullable;
import java.util.List;

need4spd

1. Obtaining an Entity Manager and Persisting an Entity
EntityManagerFactory emf = Persistence.createEntityManagerFactory("EmployeeService");
EntityManager em = emf.createEntityManager();
Employee emp = new Employee(130);
em.persist(emp);

persist가 완료되면 emp 객체는 entity manager의 persistence context에의해 관리된다.

2. Finding an Entity
Employee emp = em.find(Employee.class, 130);

need4spd

//String to DateTime
//05/28/2014 11:31
DateTimeFormatter fmt = DateTimeFormat.forPattern("MM/dd/yyyy HH:mm");
fmt.parseDateTime("05/28/2014 11:31");


//Date to String
DateTimeFormatter fmt = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm");
String sqlTimeString = fmt.print(DateTime.now());