Created
February 25, 2018 08:20
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One to one hibernate relationship
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1 -------------> 1 | |
Stock Stock_Daily_Record | |
@OneToOne(fetch = FetchType.LAZY, mappedBy = "stock", @OneToOne(fetch = FetchType.LAZY) | |
cascade = CascadeType.ALL) @PrimaryKeyJoinColumn | |
import javax.persistence.CascadeType; | |
import javax.persistence.Column; | |
import javax.persistence.Entity; | |
import javax.persistence.FetchType; | |
import javax.persistence.GeneratedValue; | |
import static javax.persistence.GenerationType.IDENTITY; | |
import javax.persistence.Id; | |
import javax.persistence.OneToOne; | |
import javax.persistence.Table; | |
import javax.persistence.UniqueConstraint; | |
@Entity | |
@Table(name = "stock", catalog = "mkyongdb", uniqueConstraints = { | |
@UniqueConstraint(columnNames = "STOCK_NAME"), | |
@UniqueConstraint(columnNames = "STOCK_CODE") }) | |
public class Stock implements java.io.Serializable { | |
private Integer stockId; | |
private String stockCode; | |
private String stockName; | |
private StockDetail stockDetail; | |
public Stock() { | |
} | |
public Stock(String stockCode, String stockName) { | |
this.stockCode = stockCode; | |
this.stockName = stockName; | |
} | |
public Stock(String stockCode, String stockName, StockDetail stockDetail) { | |
this.stockCode = stockCode; | |
this.stockName = stockName; | |
this.stockDetail = stockDetail; | |
} | |
@Id | |
@GeneratedValue(strategy = IDENTITY) | |
@Column(name = "STOCK_ID", unique = true, nullable = false) | |
public Integer getStockId() { | |
return this.stockId; | |
} | |
public void setStockId(Integer stockId) { | |
this.stockId = stockId; | |
} | |
@Column(name = "STOCK_CODE", unique = true, nullable = false, length = 10) | |
public String getStockCode() { | |
return this.stockCode; | |
} | |
public void setStockCode(String stockCode) { | |
this.stockCode = stockCode; | |
} | |
@Column(name = "STOCK_NAME", unique = true, nullable = false, length = 20) | |
public String getStockName() { | |
return this.stockName; | |
} | |
public void setStockName(String stockName) { | |
this.stockName = stockName; | |
} | |
@OneToOne(fetch = FetchType.LAZY, mappedBy = "stock", cascade = CascadeType.ALL) | |
public StockDetail getStockDetail() { | |
return this.stockDetail; | |
} | |
public void setStockDetail(StockDetail stockDetail) { | |
this.stockDetail = stockDetail; | |
} | |
} | |
----------------------------------------------------- | |
import java.util.Date; | |
import javax.persistence.Column; | |
import javax.persistence.Entity; | |
import javax.persistence.FetchType; | |
import javax.persistence.GeneratedValue; | |
import javax.persistence.Id; | |
import javax.persistence.OneToOne; | |
import javax.persistence.PrimaryKeyJoinColumn; | |
import javax.persistence.Table; | |
import javax.persistence.Temporal; | |
import javax.persistence.TemporalType; | |
import org.hibernate.annotations.GenericGenerator; | |
import org.hibernate.annotations.Parameter; | |
@Entity | |
@Table(name = "stock_detail", catalog = "mkyongdb") | |
public class StockDetail implements java.io.Serializable { | |
private Integer stockId; | |
private Stock stock; | |
private String compName; | |
private String compDesc; | |
private String remark; | |
private Date listedDate; | |
public StockDetail() { | |
} | |
public StockDetail(Stock stock, String compName, String compDesc, | |
String remark, Date listedDate) { | |
this.stock = stock; | |
this.compName = compName; | |
this.compDesc = compDesc; | |
this.remark = remark; | |
this.listedDate = listedDate; | |
} | |
@GenericGenerator(name = "generator", strategy = "foreign", | |
parameters = @Parameter(name = "property", value = "stock")) | |
@Id | |
@GeneratedValue(generator = "generator") | |
@Column(name = "STOCK_ID", unique = true, nullable = false) | |
public Integer getStockId() { | |
return this.stockId; | |
} | |
public void setStockId(Integer stockId) { | |
this.stockId = stockId; | |
} | |
@OneToOne(fetch = FetchType.LAZY) | |
@PrimaryKeyJoinColumn | |
public Stock getStock() { | |
return this.stock; | |
} | |
public void setStock(Stock stock) { | |
this.stock = stock; | |
} | |
@Column(name = "COMP_NAME", nullable = false, length = 100) | |
public String getCompName() { | |
return this.compName; | |
} | |
public void setCompName(String compName) { | |
this.compName = compName; | |
} | |
@Column(name = "COMP_DESC", nullable = false) | |
public String getCompDesc() { | |
return this.compDesc; | |
} | |
public void setCompDesc(String compDesc) { | |
this.compDesc = compDesc; | |
} | |
@Column(name = "REMARK", nullable = false) | |
public String getRemark() { | |
return this.remark; | |
} | |
public void setRemark(String remark) { | |
this.remark = remark; | |
} | |
@Temporal(TemporalType.DATE) | |
@Column(name = "LISTED_DATE", nullable = false, length = 10) | |
public Date getListedDate() { | |
return this.listedDate; | |
} | |
public void setListedDate(Date listedDate) { | |
this.listedDate = listedDate; | |
} | |
} | |
------------------------------------------------------------------- | |
File : hibernate.cfg.xml | |
<?xml version="1.0" encoding="utf-8"?> | |
<!DOCTYPE hibernate-configuration PUBLIC | |
"-//Hibernate/Hibernate Configuration DTD 3.0//EN" | |
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> | |
<hibernate-configuration> | |
<session-factory> | |
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> | |
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/mkyongdb</property> | |
<property name="hibernate.connection.username">root</property> | |
<property name="hibernate.connection.password">password</property> | |
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> | |
<property name="show_sql">true</property> | |
<mapping class="com.mkyong.stock.Stock" /> | |
<mapping class="com.mkyong.stock.StockDetail" /> | |
</session-factory> | |
</hibernate-configuration> | |
------------------------------------------------------------- | |
import com.mkyong.stock.Stock; | |
import com.mkyong.stock.StockDailyRecord; | |
import com.mkyong.util.HibernateUtil; | |
public class App { | |
public static void main(String[] args) { | |
System.out.println("Hibernate one to many (Annotation)"); | |
Session session = HibernateUtil.getSessionFactory().openSession(); | |
session.beginTransaction(); | |
Stock stock = new Stock(); | |
stock.setStockCode("7052"); | |
stock.setStockName("PADINI"); | |
session.save(stock); | |
StockDailyRecord stockDailyRecords = new StockDailyRecord(); | |
stockDailyRecords.setPriceOpen(new Float("1.2")); | |
stockDailyRecords.setPriceClose(new Float("1.1")); | |
stockDailyRecords.setPriceChange(new Float("10.0")); | |
stockDailyRecords.setVolume(3000000L); | |
stockDailyRecords.setDate(new Date()); | |
stockDailyRecords.setStock(stock); | |
stock.getStockDailyRecords().add(stockDailyRecords); | |
session.save(stockDailyRecords); | |
session.getTransaction().commit(); | |
System.out.println("Done"); | |
} | |
} |
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