hbm2ddl

Column without member

由 扶醉桌前 提交于 2019-12-12 01:49:37
问题 Using Hibernate we're trying to have it create an additional column to an abstract class - but we can't add a new member to this class (memory consumption in large scale). We need to have Hibernate create the schema (development phase, hibernate.hbm2ddl.auto=update ). Let's say we have a MyClass entity class with members a,b,c , and we would like Hibernate to also create a column d . This column is not needed in memory and will be accessed only via HQL/SQL during saving/loading times of

constraint problems using apache derby and hbm2ddl

由 不问归期 提交于 2019-12-11 14:07:40
问题 We are using Apache Derby 10.5.3.0_1 and hbm2ddl with Hibernate 3.3.x I get the following constraints error while pre-loading the SQL on an embedded derby database. If I remove the primary key(id) from the create table sql, it's able to create the table. Not sure what the problem is over here. create table user_flow (id integer not null generated always as identity unique, creation_date timestamp not null, name varchar(255), primary key (id)); [INFO] Constraints 'SQL100219175052781' and

Is the ForeignKey annotation only used by HBM2DDL to generate the schema?

由 ≯℡__Kan透↙ 提交于 2019-12-11 11:33:37
问题 I'm having an issue with how Hibernate generates foreign key names when using the TABLE_PER_CLASS inheritance strategy: Foreign keys have random number appended when using Hibernate's TABLE_PER_CLASS inheritance So I'm wondering if I can simply replace the annotation with the following: @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS) @Entity abstract class Item { @ManyToOne @ForeignKey(name="FK_ITEM_ORG_CHANGEME") @JoinColumn(name="ORG_ID") private Organization org } That way I

Hibernate does not create tables in spite of hibernate.hbm2ddl.auto=create

由 你离开我真会死。 提交于 2019-12-11 11:07:08
问题 I 've tried several editions but NOT use. I need to resolve this part to continue the project . The hibernate is not generating the tables in the database, I can not find where the error is. The code is: package br.com.evolutionary.modelo; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; @Entity public class Pokemon { @Id @GeneratedValue private Long id; @Column private String nome; public Long getId() {

Hibernate: Reversed column order by hbm2ddl [duplicate]

由 此生再无相见时 提交于 2019-12-09 03:15:37
问题 This question already has answers here : Wrong ordering in generated table in jpa (2 answers) Closed 10 months ago . I let hbm2ddl create the tables for me (for dev purposes), and the columns are in reverse order of the fields in the class. How can I make it create the columns in the same order as the class has? I think Java classes do not store the order of fields, so Hibernate simply does not know what the order in source is (which seems logical if I think about more complex cases). But,

How to get hibernate3-maven-plugin hbm2ddl to find JDBC driver?

由 你说的曾经没有我的故事 提交于 2019-12-06 12:45:17
问题 I have a Java project I am building with Maven. I am now trying to get the hibernate3-maven-plugin to run the hbm2ddl tool to generate a schema.sql file I can use to create the database schema from my annotated domain classes. This is a JPA application that uses Hibernate as the provider. In my persistence.xml file I call out the mysql driver: <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/> <property name="hibernate.connection.driver_class" value="com.mysql

Hibernate, MySQL Views and hibernate.hbm2ddl.auto = validate

由 混江龙づ霸主 提交于 2019-12-06 10:40:27
问题 I can use MySQL views in Hibernate by treating them like tables - ie. the entity is no different than one created for a table. However my application won't deploy when Hibernate is set to validate the model as it can't find the View as it assumes it's a table. Is it possible to use Hibernate Entities with deploy time validation turned on (hibernate.hbm2ddl.auto = validate)? Thanks. 回答1: There are several issues in JIRA about this ( HHH-2018 , HHH-1872, and HHH-1329 ) so this might clearly be

Why is Hibernate throwing a SQLGrammarException saying table/view does not exist when I've set hbm2ddl.auto to create?

由 廉价感情. 提交于 2019-12-06 07:30:25
问题 I've been experimenting with hibernate and spring and servlets. Now, I'm stuck. Why am I getting this exception? I thought tables would be created automatically when hbm2ddl.auto is set to create. appicationContext.xml <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="org.apache.derby.jdbc.ClientDriver" /> <property name="url" value="jdbc:derby://localhost:1527/db;create=true" /> </bean> <bean id="sessionFactory"

MySQL DATETIME precision (joda-time, Hibernate, org.jadira.usertype, hbm2ddl)

由 萝らか妹 提交于 2019-12-06 02:31:22
问题 In my hibernate-4 entity, I am mapping a joda-time DateTime property using the recommended jadira usertypes: @Entity @Table(name="timing") public class TimingEntity { ... @Basic(optional=false) @Column(name="moment") @Type(type="org.jadira.usertype.dateandtime.joda.PersistentDateTime") public DateTime getMoment() { ... My database is MySQL. With hibernate property hbm2ddl.auto set to create value, I have the following column generated in my timing table: CREATE TABLE `timing` ( ... `moment`

Table not created with hbm2ddl.auto=update in Hibernate 5

由 ＊爱你＆永不变心＊ 提交于 2019-12-05 10:34:25
The database table is NOT auto-created by the <property name="hbm2ddl.auto">update</property> settings in hibernate-cfg.xml , with the following combination: Java 8 + Tomcat 8 + MySQL + Hibernate 5 Java version: java version "1.8.0_45" Java(TM) SE Runtime Environment (build 1.8.0_45-b14) Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode) MySQL version: mysql Ver 14.14 Distrib 5.6.16, for osx10.7 (x86_64) using EditLine wrapper Tomcat version: apache-tomcat-8.0.22 pom.xml snippets: <dependency> <groupId>org.eclipse.persistence</groupId> <artifactId>javax.persistence</artifactId>
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