Hibernatetemplate not updating
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.
Consider above objects need to be stored and retrieved into the following RDBMS table: There are other attributes and elements available which will be used in a mapping document and I would try to cover as many as possible while discussing other Hibernate related topics. FIELD) public class Employee package com.journaldev.hibernate.model; import javax.persistence. Cascade; @Entity @Table(name = "EMPLOYEE") @Access(value=Access Type. 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 (? If we use this without transaction and we have cascading between entities, then only the primary entity gets saved unless we flush the session.
package com.journaldev.hibernate.model; import javax.persistence.
The “Cascade” keyword is often appear on the collection mapping to manage the state of the collection automatically. Stock Daily Record sdr1 = (Stock Daily Record)session.get(Stock Daily Record.class, new Integer(56)); Stock Daily Record sdr2 = (Stock Daily Record)session.get(Stock Daily Record.class, new Integer(57)); session.delete(sdr1); session.delete(sdr2); The cascade=”delete-orphan” is declared in ‘stock Daily Records’ to enable the delete orphan cascade effect.
In this tutorials, this one-to-many example will be used to demonstrate the cascade effect. When you save or update the Stock, it will remove those ‘stock Daily Records’ which already mark as removed.
You need to loop all the ‘stock Daily Records’ and delete it one by one.
In this example, if a ‘Stock’ is deleted, all its referenced ‘stock Daily Records’ should be deleted from database as well.
My problems were the url from the element a in the jsp and the SQL in the methods User DAOImpl. I have to develop an application of the same kind as your example, but my service must be able to run independently of the web part.