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  1. package org.ruler.sample;
  2.  
  3. import java.sql.SQLException;
  4. import java.util.ArrayList;
  5. import java.util.HashMap;
  6. import java.util.List;
  7. import java.util.Map;
  8.  
  9. import org.ruler.Client;
  10. import org.ruler.Mode;
  11. import org.ruler.Provider;
  12. import org.ruler.Server;
  13.  
  14. public class Main {
  15.  
  16. 	public static void main(String[] args) {
  17. 		try {
  18. 			new Main().test();
  19. 		} catch (Exception e) {
  20. 			// TODO Auto-generated catch block
  21. 			e.printStackTrace();
  22. 		}
  23. 	}
  24.  
  25. 	void test() throws SQLException, IllegalArgumentException, IllegalAccessException, NoSuchFieldException, SecurityException, InstantiationException {
  26.  
  27.  
  28. 		// TODO Auto-generated method stub
  29. 		Server server = new Server(Mode.tcp); // HSQL localhost
  30. 		server.start();
  31.  
  32. 		// Provider likes EntityManagerFactory.class of JPA or Hibernate etc...
  33. 		Provider provider = new Provider(Mode.tcp); // HSQL localhost
  34. 		provider.bind(User.class, () -> new User());
  35. 		provider.open();
  36.  
  37.  
  38. 		// Cliant likes EntityManager.class of JPA or Hibernate etc...
  39. 		try(Client client = provider.open()){ // AutoCloseable.close().
  40.  
  41. 			// 前回のデータが残っていたらドロップする。
  42. 			client.table.drop(User.class);
  43.  
  44. 			client.table.create(User.class);
  45.  
  46. 			for(int i=0; i<100; i++){
  47.  
  48. 				// CRUD(Create)
  49. 				User user = client.insert(User.class);
  50.  
  51. 				// CRUD(Update)
  52. 				user.name.update("Java Entity Ruler");
  53. 				user.age.update(i);
  54. 				client.update(user);
  55. 			}
  56.  
  57.  
  58. 			Map<Integer, User> map = new HashMap<>();
  59. 			List<User> list = new ArrayList<>();
  60.  
  61. 			// CRUD(Read)
  62. 			client.find(User.class, (e) -> {
  63.  
  64. 				// Event e == JDBC ResultSet, that will be closed after lambda.
  65.  
  66. 				int count = e.count(); // all size (SQL COUNT(*))
  67. 				int index = e.index();
  68. 				User user = e.value();
  69.  
  70. 				// from 25% to 75%
  71. 				if(index > count/4 && index < count*3/4){
  72. 					// CRUD(Delete)
  73. 					client.remove(user);
  74.  
  75. 					// return value with Map<int, Entity>.
  76. 					int age = user.age.value();
  77. 					map.put(age, user);
  78.  
  79. 					// Entity value with List<Entity>.
  80. 					list.add(user);
  81. 				}
  82. 			});
  83.  
  84. 			for(User user : list){
  85. 				long id = user.id.value();
  86. 				String msg = "User id("+id+") is deleted.";
  87. 				System.out.println(msg);
  88. 			}
  89.  
  90. 			int age = 99;
  91. 			User user = map.get(age);
  92. 			if( user != null ){
  93. 				String msg = "User age("+age+") is deleted.";
  94. 				System.out.println(msg);
  95. 			}
  96.  
  97.  
  98. 			client.table.drop(User.class);
  99.  
  100. 		}
  101.  
  102. 		provider.close();
  103.  
  104. 		server.stop();
  105. 		server.dispose();
  106. 	}
  107. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
Main.java:34: error: illegal start of expression
		provider.bind(User.class, () -> new User());
		                           ^
Main.java:34: error: illegal start of expression
		provider.bind(User.class, () -> new User());
		                              ^
Main.java:62: error: illegal start of expression
			client.find(User.class, (e) -> {
			                             ^
Main.java:62: error: illegal start of expression
			client.find(User.class, (e) -> {
			                               ^
Main.java:62: error: ';' expected
			client.find(User.class, (e) -> {
			                                ^
Main.java:82: error: illegal start of expression
			});
			 ^
Main.java:102: error: <identifier> expected
		provider.close();
		              ^
Main.java:104: error: <identifier> expected
		server.stop();
		           ^
Main.java:105: error: <identifier> expected
		server.dispose();
		              ^
Main.java:107: error: class, interface, or enum expected
}
^
10 errors
stdout 
Standard output is empty
https://ideone.com/4FZZeN
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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