How to set table name for @ElementCollection in hibernate
Use annotation @CollectionTable(name=”your_table_name”)
annotations
Missing annotations.jar
So, when i updated sdk to L version i had same problem. But after Extra folders updating in SDK Manager i didn’t find annotation.jar file. Maybe Google bug with new SDK version. So i copied annotation.jar file from old SDK folder (folder half a year ago)
Multi-Column Join in Hibernate/JPA Annotations
This worked for me . In my case 2 tables foo and boo have to be joined based on 3 different columns.Please note in my case ,in boo the 3 common columns are not primary key i.e., one to one mapping based on 3 different columns @Entity @Table(name = “foo”) public class foo implements Serializable … Read more
Filter specific packages in @ComponentScan
You simply need to create two Config classes, for the two @ComponentScan annotations that you require. So for example you would have one Config class for your foo.bar package: @Configuration @ComponentScan(basePackages = {“foo.bar”}, excludeFilters = @ComponentScan.Filter(value = Service.class, type = FilterType.ANNOTATION) ) public class FooBarConfig { } and then a 2nd Config class for your … Read more
Does Python type hint (annotations) cause some run-time effects? [duplicate]
Type hints and annotations do provide attributes (see typing.get_type_hints) that can be passed by 3rd party tools but native CPython will not type check these at runtime, so this should not affect the code performance significantly in the same way that comments don’t. I ran some tests with timeit and removing type hints had a … Read more
Servlet 3.0: where is @WebServletContextListener?
The annotation is called @WebListener. And you still have to implement ServletContextListener.
Are persistence annotations in domain objects a bad practice?
In my latest iteration on an existing system using Spring and Hibernate, I have started to move in a similar matter. When first implementing Hibernate models, I strove to separate the application logic in service classes from the persistence logic via data access objects. When building a new system last year I allowed most of … Read more
How is a blob column annotated in Hibernate?
@Lob should do the trick for blob and clob (use String as type) @Column( name = “FILEIMAGE” ) @Lob(type = LobType.BLOB) private byte[] fileimage;
a new object was found through a relationship that was not marked cascade PERSIST
What you had likely done is that you created new instance of Article and and some new instance(s) of HeaderField. These instance(s) of HeaderField were then associated with Article. After that trying to persist Article fails, because as error message says, it refers to new objects and relationship is not marked as PERSIST. Additionally according … Read more
Best practice for configuring Spring LdapTemplate via annotations instead of XML?
Why all the subclasses? Just use configuration to configure the beans. Either XML or Java Config. @Configuration public class LdapConfiguration { @Autowired Environment env; @Bean public LdapContextSource contextSource () { LdapContextSource contextSource= new LdapContextSource(); contextSource.setUrl(env.getRequiredProperty(“ldap.url”)); contextSource.setBase(env.getRequiredProperty(“ldap.base”)); contextSource.setUserDn(env.getRequiredProperty(“ldap.user”)); contextSource.setPassword(env.getRequiredProperty(“ldap.password”)); return contextSource; } @Bean public LdapTemplate ldapTemplate() { return new LdapTemplate(contextSource()); } } Your DirectoryService can remain … Read more