more changes

Author: ravening

hibernate/ifinances/src/main/java/com/rakeshv/ifinances/models/Account.java

@@ -16,7 +16,9 @@
 import javax.persistence.ManyToMany;
 import javax.persistence.ManyToOne;
 import javax.persistence.OneToMany;
+import javax.persistence.SequenceGenerator;
 import javax.persistence.Table;
+import javax.persistence.TableGenerator;
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.Date;
@@ -32,7 +34,11 @@
 @Table(name = "account")
 public class Account {
     @Id
-    @GeneratedValue(strategy = GenerationType.AUTO)
+    // AUTO is the default generation strategy
+//    @GeneratedValue(strategy = GenerationType.AUTO)
+    @GeneratedValue(strategy = GenerationType.TABLE, generator = "account_table_generator")
+    @TableGenerator(name = "account_table_generator", table = "ifinances_keys",
+            pkColumnName = "PK_NAME", valueColumnName = "PK_VALUE")
     @Column(name = "ACCOUNT_ID")
     private Long accountId;
 

hibernate/ifinances/src/main/java/com/rakeshv/ifinances/models/TimeTest.java

@@ -0,0 +1,58 @@
+package com.rakeshv.ifinances.models;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.Table;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.util.Date;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+@Builder
+@Entity
+@Table(name = "time_test")
+public class TimeTest {
+    @Id
+    @GeneratedValue
+    @Column(name = "TIME_TEST_ID")
+    private long timeTestId;
+
+    @Temporal(TemporalType.TIMESTAMP)
+    @Column(name = "DATETIME_COLUMN")
+    private Date datetimeColumn;
+
+    @Temporal(TemporalType.TIMESTAMP)
+    @Column(name = "TIMESTAMP_COLUMN")
+    private Date timestampColumn;
+
+    @Temporal(TemporalType.DATE)
+    @Column(name = "DATE_COLUMN")
+    private Date dateColumn;
+
+    @Temporal(TemporalType.TIME)
+    @Column(name = "TIME_COLUMN")
+    private Date timeColumn;
+
+    @Column(name = "SQL_DATETIME_COLUMN")
+    private Timestamp sqlDateTimeColumn;
+
+    @Column(name = "SQL_TIMESTAMP_COLUMN")
+    private Timestamp sqlTimestampColumn;
+
+    @Column(name = "SQL_DATE_COLUMN")
+    private java.sql.Date sqlDateColumn;
+
+    @Column(name = "SQL_TIME_COLUMN")
+    private Time sqlTimeColumn;
+}

hibernate/ifinances/src/main/java/com/rakeshv/ifinances/models/User.java

@@ -4,24 +4,28 @@
 import lombok.Builder;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import org.hibernate.annotations.Formula;
 
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
+import javax.persistence.SequenceGenerator;
 import javax.persistence.Table;
+import javax.persistence.Transient;
 import java.util.Date;
 
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 @Builder
 @Entity
-@Table(name = "FINANCES_USER")
+@Table(name = "finances_user")
 public class User {
     @Id
-    @GeneratedValue(strategy= GenerationType.IDENTITY)
+    @GeneratedValue(strategy= GenerationType.SEQUENCE, generator = "seqGen")
+    @SequenceGenerator(name = "seqGen", sequenceName = "seq", initialValue = 100)
     @Column(name="USER_ID")
     private Long userId;
 
@@ -49,4 +53,10 @@ public class User {
     @Column(name="CREATED_BY", updatable=false)
     private String createdBy;
 
+    @Transient
+    private boolean valid;
+
+//    @Formula("YEAR(CURDATE()) - YEAR(BIRTH_DATE)")
+    @Formula("lower(datediff(curdate(),BIRTH_DATE)/365)")
+    private int age;
 }

hibernate/ifinances/src/main/java/com/rakeshv/ifinances/repositories/TimeTestRepository.java

@@ -0,0 +1,9 @@
+package com.rakeshv.ifinances.repositories;
+
+import com.rakeshv.ifinances.models.TimeTest;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface TimeTestRepository extends JpaRepository<TimeTest, Long> {
+}

hibernate/ifinances/src/main/java/com/rakeshv/ifinances/utils/DbLoader.java

@@ -0,0 +1,62 @@
+package com.rakeshv.ifinances.utils;
+
+import com.rakeshv.ifinances.models.TimeTest;
+import com.rakeshv.ifinances.models.User;
+import com.rakeshv.ifinances.repositories.TimeTestRepository;
+import com.rakeshv.ifinances.repositories.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.List;
+
+@Component
+public class DbLoader implements CommandLineRunner {
+
+    @Autowired
+    TimeTestRepository timeTestRepository;
+    @Autowired
+    UserRepository userRepository;
+
+    @Override
+    public void run(String... args) throws Exception {
+        TimeTest timeTest = TimeTest.builder()
+                .dateColumn(new Date())
+                .timeColumn(new Date())
+                .timestampColumn(new Date())
+                .datetimeColumn(new Date())
+                .sqlDateColumn(new java.sql.Date(new Date().getTime()))
+                .sqlTimeColumn(new Time(new Date().getTime()))
+                .sqlDateTimeColumn(new Timestamp(new Date().getTime()))
+                .sqlTimestampColumn(new Timestamp(new Date().getTime())).build();
+//        timeTestRepository.save(timeTest);
+
+        User user = User.builder()
+                .createdBy("Kevin")
+                .birthDate(getBirthday())
+                .createdDate(new Date())
+                .emailAddress("kmb385@yahoo.com")
+                .firstName("Kevin")
+                .lastName("Bowersox")
+                .lastUpdatedBy("kevin")
+                .lastUpdatedDate(new Date()).build();
+//        userRepository.save(user);
+
+        List<User> users = userRepository.findAll();
+
+        users.forEach(u -> System.out.println(u.toString()));
+    }
+
+    private static Date getBirthday() {
+        Calendar calendar = Calendar.getInstance();
+        calendar.set(Calendar.YEAR, 1987);
+        calendar.set(Calendar.MONTH, 6);
+        calendar.set(Calendar.DATE, 19);
+
+        return calendar.getTime();
+    }
+}

hibernate/notes.txt

@@ -306,3 +306,14 @@ Locking
 Optimistic locking and pessimistic
 
 @Lock(LockModeType.PESSIMISTIC_WRITE)
+
+
+Database provides 3 types of date or time datatypes
+
+datetime, date, time
+
+mysql has timestamp which is different from time
+
+3 value types
+
+basic, composite and collection