Spring Roo管理實體：不可樂觀鎖定

Question

有人知道如何禁用Spring Roo管理實體中的樂觀鎖定嗎？ 我生成標註實體如下：

@RooJavaBean 
@RooToString 
@RooJpaActiveRecord 
public class CoolDomain { 
} 

然而，當我開始它未能線實體管理器應用程序說：

Caused by: org.hibernate.HibernateException: Missing column: version in COOL_DOMAIN 
    at org.hibernate.mapping.Table.validateColumns(Table.java:369) 
    at org.hibernate.cfg.Configuration.validateSchema(Configuration.java:1275) 
    at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:155) 
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:506) 
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1750) 
    at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:94) 
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:905) 
    ... 51 more 

Answer 1

爲了避免版本檢查我加入versionField=""屬性@RooJpaActiveRecord註解。 這解決了問題：

@RooJavaBean 
@RooToString 
@RooJpaActiveRecord(versionField="") 
public class CoolDomain { 
}