hibernate-criteria

问题 We have got a requirement for multiple schemas in Hibernate. In our project, we need to connect to multiple schemas based on the username and password. But how to configure multiple schemas in Hibernate? Please let me know if there's a way. 回答1: Thanks to Hibernate Multitenancy support, you can easily do that as follows: The following examples can be found in the Hibernate ORM documentation folder. Each schema can be a tenant, so you only need to provide a tenant identifier to the Hibernate

问题 I am using the below Hibernate code to filter workFlowName . crt.add(Restrictions.like("workFlowName", workFlow, MatchMode.ANYWHERE)); // crt is the criteria The problem is when I pass the value to workFlow from web (TextBox).it fetching the value correctly (I am passing sym in text box if fetch 10 records.if i pass the same value like %sym% again it is fetching same record). Whether the criteria will omit when it see %% as argument? 回答1: Hibernate does not escape special chars in like (e.g.

问题 I have a spring app with the user entity and the users table. I would like to get a number of all users grouped by certain fields (not per group but in total ). In sql It would be: select count(*) OVER () as totalRecords from users u group by u.first_name, u.last_name, u.age order by u.age DESC OFFSET 1 ROWS FETCH NEXT 1 ROWS ONLY; But I really can't do that using hibernate criteria. I could do something like: public Long getTotalCount() { ProjectionList groupBy = projectionList(); groupBy

问题 I have a spring app with the user entity and the users table. I would like to get a number of all users grouped by certain fields (not per group but in total ). In sql It would be: select count(*) OVER () as totalRecords from users u group by u.first_name, u.last_name, u.age order by u.age DESC OFFSET 1 ROWS FETCH NEXT 1 ROWS ONLY; But I really can't do that using hibernate criteria. I could do something like: public Long getTotalCount() { ProjectionList groupBy = projectionList(); groupBy

问题 I have a spring app with the user entity and the users table. I would like to get a number of all users grouped by certain fields (not per group but in total ). In sql It would be: select count(*) OVER () as totalRecords from users u group by u.first_name, u.last_name, u.age order by u.age DESC OFFSET 1 ROWS FETCH NEXT 1 ROWS ONLY; But I really can't do that using hibernate criteria. I could do something like: public Long getTotalCount() { ProjectionList groupBy = projectionList(); groupBy

问题 I am passing a collection of vehicles names like ['car','jeep','truck','bike'] and want to select those owners who owns vehicles in this list using Criteria query, Owner here can own multiple vahicles (OneToMany). I have a limitation that i need to use Criteria query. class Owner { @ID @GeneratedValue(strategy = IDENTITY) @Column(name = "owner_id") private Long ownerId; @OneToMany(cascade = CascadeType.ALL) @JoinColumn(name = "owner_id") private Set<Vehicles> vehicles; } class Vehicles { @ID

问题 I am trying to translate the query below to criteria api. SELECT er from ereturn er JOIN FETCH product_item pi ON pi.ereturn_id = er.id WHERE pi.status = "RECEIVED" To something like this: CriteriaBuilder builder = em.getCriteriaBuilder(); CriteriaQuery<Ereturn> criteria = builder.createQuery( Ereturn.class ); Root<Ereturn> er = criteria.from(Ereturn.class); Join<Ereturn, ProductItem> productItemJoin = er.join("productItems", JoinType.LEFT); Fetch<Ereturn, ProductItem> productItemFetch = er

问题 I am trying to translate the query below to criteria api. SELECT er from ereturn er JOIN FETCH product_item pi ON pi.ereturn_id = er.id WHERE pi.status = "RECEIVED" To something like this: CriteriaBuilder builder = em.getCriteriaBuilder(); CriteriaQuery<Ereturn> criteria = builder.createQuery( Ereturn.class ); Root<Ereturn> er = criteria.from(Ereturn.class); Join<Ereturn, ProductItem> productItemJoin = er.join("productItems", JoinType.LEFT); Fetch<Ereturn, ProductItem> productItemFetch = er

问题 I have a property created like this in my model: public class Client { private Boolean active; } My RDBMS is Oracle and the active column is of type NUMBER(1,0) . How can I use the Restrictions API to achieve the following functionality? criteria.add(Restrictions.eq("active"),object.isActive()); 回答1: Hibernate maps the Boolean Java type to Oracle NUMBER(1,0) automatically. So, you can use a Boolean value in your entity mappings, JPQL or Criteria queries and the generated SQL will use the

来源： https://stackoverflow.com/questions/64710319/crinteria-join-make-and-insetad-of-or