hibernate

问题 I am using hibernate entity - and sequence generator with it. My database is Oracle 12c. In my sequence generator - it fetches value which is already present in table. I tried looking out for issue - found one simmilar thread Hibernate sequence nextVal resolved but not used (Oracle) But still it did not help . The issue am facing is - it works some times and it does not work some times Below is my code snippet - @Entity @Table(name="TABLE_NAME", schema = "SCHEMA") @SequenceGenerator(name=

问题 I have this entity, called FatRabbitCarrot: @Entity public class FatRabbitCarrot { private Long id; private FatRabbit fatRabbit; private Carrot carrot; @Id @Column(name = "id", nullable = false) @GeneratedValue(strategy = GenerationType.IDENTITY) public Long getId() { return id; } public void setId(Long id) { this.id = id; } @ManyToOne @JoinColumn(name = "fatRabbit_id", foreignKey = @ForeignKey(name = "FK_FatRabbitCarrot_fatRabbit")) public FatRabbit getFatRabbit() { return fatRabbit; }

问题 import java.lang.reflect.Field; import java.lang.reflect.ParameterizedType; import java.text.ParseException; import java.util.ArrayList; import java.util.Collection; import java.util.Date; import java.util.List; import java.util.Map; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import javax.persistence.Query; import javax.persistence.Transient; import org.apache.log4j.Logger; import org.springframework.dao.DataAccessException; /** * Generic DAO

问题 I am using embedded hsql db in my spring boot application and want to create a schema only if does not exist in the db. Assuming the schema name is XXX, I have the below single statement schema-hsql.sql file: CREATE SCHEMA XXX IF NOT EXISTS However this is faing with below stack trace: org.springframework.jdbc.datasource.init.ScriptStatementFailedException: Failed to execute SQL script statement #1 of URL [file:/xxx/schema-hsql.sql]: CREATE SCHEMA XXX IF NOT EXISTS; nested exception is java

问题 I am using embedded hsql db in my spring boot application and want to create a schema only if does not exist in the db. Assuming the schema name is XXX, I have the below single statement schema-hsql.sql file: CREATE SCHEMA XXX IF NOT EXISTS However this is faing with below stack trace: org.springframework.jdbc.datasource.init.ScriptStatementFailedException: Failed to execute SQL script statement #1 of URL [file:/xxx/schema-hsql.sql]: CREATE SCHEMA XXX IF NOT EXISTS; nested exception is java

问题 I am implementing a simple audit log functionality using hibernate event listeners. I wanted to accumulate all the changes for all entities in a transaction and handle auditing. By using hibernate interceptors approach we have postFlush() where we handle auditing of all the accumulated audit events. What is the equivalent for event listeners? I tried using 'hibernate.ejb.event.flush' event. But it invokes very beginning of the life cycle, even before onPostInsert, onPostUpdate and

问题 I have a ResponseDto class which looks like as below: public static class HealthGoalsHighlight { @ApiModelProperty(value = "Total number of eligible users") private Long totalEligibleUsers; @ApiModelProperty(value = "Total number of registered users") private Long totalRegisteredUsers; @ApiModelProperty(value = "Total number of users with atleast one goal count") private Long totalUsersWithGoal; @ApiModelProperty(value = "Top goal name selected by user") private String topGoal;

问题 I have the below persistence file - <persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"> <persistence-unit name="unit" > <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" /> <property name=

问题 I have the below persistence file - <persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"> <persistence-unit name="unit" > <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" /> <property name=

问题 I'm a little bit new to hibernate, so I started with simple things. According to F.I.R.S.T test principles, unit tests must be I - isolated. I'm trying to apply it to integration tests for repository layer (Hibernate\JPA) using @Transactional annotation: @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(classes = RepositoryConfig.class) @Transactional public class EmployeeRepositoryTest extends AbstractRepositoryTest { @Autowired private IEmployeeRepository employeeRepository;