criteriaquery

问题 Okay, I'm trying to do something quite strange. I'm trying to use CriteriaBuilder and CriteriaQuery to return all entities who contain a given object in a collection on the entity. I've been banging my head against this for hours and the relevant documentation is little and not particularly useful. Any help would be greatly appreciated. Relevant excerpts of the classes are as follows. @Entity public class Entry { @ManyToMany(fetch=FetchType.EAGER) private List<Tag> tags = new ArrayList<Tag>()

问题 Okay, I'm trying to do something quite strange. I'm trying to use CriteriaBuilder and CriteriaQuery to return all entities who contain a given object in a collection on the entity. I've been banging my head against this for hours and the relevant documentation is little and not particularly useful. Any help would be greatly appreciated. Relevant excerpts of the classes are as follows. @Entity public class Entry { @ManyToMany(fetch=FetchType.EAGER) private List<Tag> tags = new ArrayList<Tag>()

问题 Okay, I'm trying to do something quite strange. I'm trying to use CriteriaBuilder and CriteriaQuery to return all entities who contain a given object in a collection on the entity. I've been banging my head against this for hours and the relevant documentation is little and not particularly useful. Any help would be greatly appreciated. Relevant excerpts of the classes are as follows. @Entity public class Entry { @ManyToMany(fetch=FetchType.EAGER) private List<Tag> tags = new ArrayList<Tag>()

问题 I have the following problem with my springboot project: I'm creating a Criteria Query with the elements of a filter, this is the code: public List<IncidentMinimalPOJO> getPOJOFiltered(FilterPOJO filterValue) { List<IncidentMinimalPOJO> resultListPOJO = null; CriteriaBuilder cb = em.getCriteriaBuilder(); CriteriaQuery<Incident> cq = cb.createQuery(Incident.class); List<Predicate> predicates = new ArrayList<>(); Root<Incident> root = cq.from(Incident.class); if (filterValue.getInfodesk() !=

来源： https://stackoverflow.com/questions/54869033/how-to-add-distinct-property-to-query-with-jpa-specification

问题 Having a situation where my java code is symbolic to query - SELECT CUSTOMER_ID, CUSTOMER_NAME, CASE WHEN COUNT (DISTINCT CARD_ID) > 1 THEN 'MULTIPLE' ELSE MAX(CARD_NUM) END AS CARD_NUM FROM CUSTOMER LEFT JOIN CARD ON CARD.CUSTOMER_ID = CUSTOMER.CUSTOMER_ID GROUP BY CUSTOMER_ID, CUSTOMER_NAME Java code for detailed info - CriteriaBuilder cb = em.getCriteriaBuilder(); final CriteriaQuery<Tuple> query = cb.createQuery(Tuple.class); final Root<Customer> root = query.from(Customer.class);

问题 The bounty expires in 6 days . Answers to this question are eligible for a +50 reputation bounty. Prashant Kumar wants to draw more attention to this question. I am working on replacing below sql query and use entitymanager criteriabuilder. I checked other blogs and documentation but haven't been successful yet. SELECT MIN(creation_date),MAX(creation_date),COUNT(*), source FROM creation_tbl where creation_date>=? GROUP BY source; My current approach CriteriaBuilder criteriaBuilder =

问题 I'm using Spring framework. I have two tables Package & Item and the relationship is one Package has many Items. The tables design is something like: Packages @Entity @Table(name = "TB_PACKAGE") public class Packages implements Serializable{ @Id @GeneratedValue(generator = "system-uuid") @GenericGenerator(name = "system-uuid", strategy = "uuid") @Column(name = "PACKAGE_ID") private String packageId; @Valid @OneToMany(mappedBy = "packages", cascade = { CascadeType.ALL }) private List<Item>

问题 We’re using Java 6, JPA 2.1, and Hibernate 4.3.6.Final. I have the below code that finds our Organization objects … final CriteriaBuilder builder = entityManager.getCriteriaBuilder(); final CriteriaQuery<Organization> criteria = builder.createQuery(Organization.class); final Root<Organization> root = criteria.from(Organization.class); final CriteriaQuery query = buildCriteriaQuery(builder, criteria, root, country, state, organizationTypes, parentOrg, zipCode); final TypedQuery<Organization>

问题 Hi everybody I am trying to do this in CriteriaQuery, I was searching so long but I can't found anything to do it, someone can help me? SELECT b.name FROM Empl a LEFT OUTER JOIN Deplo b ON (a.id_depl = b.id_depl) AND b.id_place = 2; I'm just trying to do a condition in left join clause, I saw ".on" function but I don't know if it will work and how it work because I tried to do something like this: Join Table1, Table2j1 = root.join(Table1_.table2, JoinType.LEFT).on(cb.and(cb.equal(table2_