Hibernate manytoone not updating

Posted by / 22-Apr-2020 22:41

Hibernate manytoone not updating

DROP TABLE IF EXISTS `stock`; CREATE TABLE `stock` ( `STOCK_ID` int(10) unsigned NOT NULL AUTO_INCREMENT, `STOCK_CODE` varchar(10) NOT NULL, `STOCK_NAME` varchar(20) NOT NULL, PRIMARY KEY (`STOCK_ID`) USING BTREE, UNIQUE KEY `UNI_STOCK_NAME` (`STOCK_NAME`), UNIQUE KEY `UNI_STOCK_ID` (`STOCK_CODE`) USING BTREE ) ENGINE=Inno DB AUTO_INCREMENT=34 DEFAULT CHARSET=utf8; DROP TABLE IF EXISTS `mkyongdb`.`stock_daily_record`; CREATE TABLE `mkyongdb`.`stock_daily_record` ( `RECORD_ID` int(10) unsigned NOT NULL AUTO_INCREMENT, `PRICE_OPEN` float(6,2) DEFAULT NULL, `PRICE_CLOSE` float(6,2) DEFAULT NULL, `PRICE_CHANGE` float(6,2) DEFAULT NULL, `VOLUME` bigint(20) unsigned DEFAULT NULL, `DATE` date NOT NULL, `STOCK_ID` int(10) unsigned NOT NULL, PRIMARY KEY (`RECORD_ID`) USING BTREE, UNIQUE KEY `UNI_STOCK_DAILY_DATE` (`DATE`), KEY `FK_STOCK_TRANSACTION_STOCK_ID` (`STOCK_ID`), CONSTRAINT `FK_STOCK_TRANSACTION_STOCK_ID` FOREIGN KEY (`STOCK_ID`) REFERENCES `stock` (`STOCK_ID`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE=Inno DB AUTO_INCREMENT=36 DEFAULT CHARSET=utf8; package com.mkyong; import

Hibernate Util; public class App Hibernate one to many (XML Mapping) Hibernate: insert into mkyongdb.stock (STOCK_CODE, STOCK_NAME) values (? ) Hibernate: insert into mkyongdb.stock_daily_record (STOCK_ID, PRICE_OPEN, PRICE_CLOSE, PRICE_CHANGE, VOLUME, DATE) values (?

Hibernate Util; public class Hibernate Save Example Hibernate: insert into EMPLOYEE (emp_name, emp_salary) values (?

Employee save called without transaction, id=149 Hibernate: insert into ADDRESS (address_line1, city, zipcode, emp_id) values (?

After committing save Or Update transaction ***** 11. Id=166 Hibernate: update ADDRESS set address_line1=?

With transaction employee object is tracked for any changes, thats why in last call there is no update in Employee table even though the value was changed in between, final value remains same. Transaction; import com.journaldev.hibernate.model.

After committing save Or Update transaction ***** Notice that without transaction, only Employee gets saved and address information is lost. Hibernate Util; public class Hibernate Update Example Hibernate: select employee0_.emp_id as emp_id1_1_0_, employee0_.emp_name as emp_name2_1_0_, employee0_.emp_salary as emp_sala3_1_0_, address1_.emp_id as emp_id1_0_1_, address1_.address_line1 as address_2_0_1_, address1_as city3_0_1_, address1_.zipcode as zipcode4_0_1_ from EMPLOYEE employee0_ left outer join ADDRESS address1_ on employee0_.emp_id=address1_.emp_id where employee0_.emp_id=?

As the method name suggests, hibernate save() can be used to save entity to database.

We can invoke this method outside a transaction, that’s why I don’t like this method to save data.

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Before committing update transaction Hibernate: update EMPLOYEE set emp_name=?