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javax.persistence | repository contains source for the Java Persistence API

 by   eclipse Java Version: Current License: No License

 by   eclipse Java Version: Current License: No License

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kandi X-RAY | javax.persistence Summary

javax.persistence is a Java library. javax.persistence has no vulnerabilities, it has build file available and it has high support. However javax.persistence has 13 bugs. You can download it from GitHub.
This repository contains source for the Java Persistence API, and may contain code based upon draft specifications.
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • javax.persistence has a highly active ecosystem.
  • It has 24 star(s) with 20 fork(s). There are 9 watchers for this library.
  • It had no major release in the last 12 months.
  • javax.
  • persistence has no issues reported. There are 1 open pull requests and 0 closed requests.
  • It has a negative sentiment in the developer community.
  • The latest version of javax.persistence is current.
javax.persistence Support
Best in #Java
Average in #Java
javax.persistence Support
Best in #Java
Average in #Java

quality kandi Quality

  • javax.persistence has 13 bugs (0 blocker, 0 critical, 7 major, 6 minor) and 168 code smells.
javax.persistence Quality
Best in #Java
Average in #Java
javax.persistence Quality
Best in #Java
Average in #Java

securitySecurity

  • javax.persistence has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • javax.persistence code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
javax.persistence Security
Best in #Java
Average in #Java
javax.persistence Security
Best in #Java
Average in #Java

license License

  • javax.persistence does not have a standard license declared.
  • Check the repository for any license declaration and review the terms closely.
  • Without a license, all rights are reserved, and you cannot use the library in your applications.
javax.persistence License
Best in #Java
Average in #Java
javax.persistence License
Best in #Java
Average in #Java

buildReuse

  • javax.persistence releases are not available. You will need to build from source code and install.
  • Build file is available. You can build the component from source.
  • javax.persistence saves you 5508 person hours of effort in developing the same functionality from scratch.
  • It has 11540 lines of code, 909 functions and 210 files.
  • It has low code complexity. Code complexity directly impacts maintainability of the code.
javax.persistence Reuse
Best in #Java
Average in #Java
javax.persistence Reuse
Best in #Java
Average in #Java
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javax.persistence Key Features

This repository contains source for the Java Persistence API, and may contain code based upon draft specifications.

javax.persistence Examples and Code Snippets

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How to set fetch-size in Spring-Data-JDBC

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@Bean
JdbcOperations jdbcOperations(DataSource dataSource) {
    final var jdbcTemplate = new JdbcTemplate(dataSource);
    jdbcTemplate.setFetchSize(100);
    return jdbcTemplate;
}

@Bean
NamedParameterJdbcOperations namedParameterJdbcOperations(JdbcOperations operations) {
    return new NamedParameterJdbcTemplate(operations);
}

How does JPA EntityGraph allow chosing the entity graph at runtime?

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@NamedEntityGraph(
  name = "post-entity-graph",
  attributeNodes = {
    @NamedAttributeNode("subject"),
    @NamedAttributeNode("user"),
    @NamedAttributeNode("comments"),
  }
)
@Entity
public class Post {

    @OneToMany(mappedBy = "post")
    private List<Comment> comments = new ArrayList<>();
    
    //...
}
// Getting the "statically" defined graph (from annotation)
EntityGraph entityGraph = entityManager.getEntityGraph("post-entity-graph");

// Then using the graph
Map<String, Object> properties = new HashMap<>();
properties.put("javax.persistence.fetchgraph", entityGraph);
Post post = entityManager.find(Post.class, id, properties);
// Building the graph dynamically
EntityGraph<Post> entityGraph = entityManager.createEntityGraph(Post.class);
entityGraph.addAttributeNodes("subject");
entityGraph.addAttributeNodes("user");


// Then using the graph
Map<String, Object> properties = new HashMap<>();
properties.put("javax.persistence.fetchgraph", entityGraph);
Post post = entityManager.find(Post.class, id, properties);
@NamedEntityGraph(
  name = "post-entity-graph",
  attributeNodes = {
    @NamedAttributeNode("subject"),
    @NamedAttributeNode("user"),
    @NamedAttributeNode("comments"),
  }
)
@Entity
public class Post {

    @OneToMany(mappedBy = "post")
    private List<Comment> comments = new ArrayList<>();
    
    //...
}
// Getting the "statically" defined graph (from annotation)
EntityGraph entityGraph = entityManager.getEntityGraph("post-entity-graph");

// Then using the graph
Map<String, Object> properties = new HashMap<>();
properties.put("javax.persistence.fetchgraph", entityGraph);
Post post = entityManager.find(Post.class, id, properties);
// Building the graph dynamically
EntityGraph<Post> entityGraph = entityManager.createEntityGraph(Post.class);
entityGraph.addAttributeNodes("subject");
entityGraph.addAttributeNodes("user");


// Then using the graph
Map<String, Object> properties = new HashMap<>();
properties.put("javax.persistence.fetchgraph", entityGraph);
Post post = entityManager.find(Post.class, id, properties);
@NamedEntityGraph(
  name = "post-entity-graph",
  attributeNodes = {
    @NamedAttributeNode("subject"),
    @NamedAttributeNode("user"),
    @NamedAttributeNode("comments"),
  }
)
@Entity
public class Post {

    @OneToMany(mappedBy = "post")
    private List<Comment> comments = new ArrayList<>();
    
    //...
}
// Getting the "statically" defined graph (from annotation)
EntityGraph entityGraph = entityManager.getEntityGraph("post-entity-graph");

// Then using the graph
Map<String, Object> properties = new HashMap<>();
properties.put("javax.persistence.fetchgraph", entityGraph);
Post post = entityManager.find(Post.class, id, properties);
// Building the graph dynamically
EntityGraph<Post> entityGraph = entityManager.createEntityGraph(Post.class);
entityGraph.addAttributeNodes("subject");
entityGraph.addAttributeNodes("user");


// Then using the graph
Map<String, Object> properties = new HashMap<>();
properties.put("javax.persistence.fetchgraph", entityGraph);
Post post = entityManager.find(Post.class, id, properties);
Optional<T> findById(ID id, EntityGraph entityGraph);
public abstract class EntityGraphBuilder<T> {

    private List<String> result = new ArrayList<>();

    protected T self;

    public T add(String path) {
        result.add(path);
        return self;
    }

    public DynamicEntityGraph build() {
        return new DynamicEntityGraph(EntityGraphType.FETCH, result);
    }

}
@Entity
public class OrderEntity {

    @Id
    private Long id;

    @Column
    private name;

    @ManyToOne(fetch = FetchType.LAZY)
    private OrderRequestEntity orderRequest;

    @ManyToOne(fetch = FetchType.LAZY)
    private ProviderEntity provider;

    public static GraphBuilder graph() {
        return new GraphBuilder();
    }

    public static class GraphBuilder extends EntityGraphBuilder<GraphBuilder> {

        private GraphBuilder() {
            self = this;
        }

        public GraphBuilder orderRequest() {
            return add("orderRequest");
        }

        public GraphBuilder provider() {
            return add("provider");
        }

    }

}
@Repository
public interface OrdersRepository extends EntityGraphJpaRepository<OrderEntity, Long> {

  OrderEntity findByName(String name, EntityGraph entityGraph);

}
OrdersRepository ordersRepository;
Long orderId = 1L;

OrderEntity order = ordersRepository.findById(
  orderId,
  OrderEntity.graph().orderRequest().provider().build()
).orElseThrow(
  () -> new ServiceException("Can't find orderId=" + orderId)
);
Optional<T> findById(ID id, EntityGraph entityGraph);
public abstract class EntityGraphBuilder<T> {

    private List<String> result = new ArrayList<>();

    protected T self;

    public T add(String path) {
        result.add(path);
        return self;
    }

    public DynamicEntityGraph build() {
        return new DynamicEntityGraph(EntityGraphType.FETCH, result);
    }

}
@Entity
public class OrderEntity {

    @Id
    private Long id;

    @Column
    private name;

    @ManyToOne(fetch = FetchType.LAZY)
    private OrderRequestEntity orderRequest;

    @ManyToOne(fetch = FetchType.LAZY)
    private ProviderEntity provider;

    public static GraphBuilder graph() {
        return new GraphBuilder();
    }

    public static class GraphBuilder extends EntityGraphBuilder<GraphBuilder> {

        private GraphBuilder() {
            self = this;
        }

        public GraphBuilder orderRequest() {
            return add("orderRequest");
        }

        public GraphBuilder provider() {
            return add("provider");
        }

    }

}
@Repository
public interface OrdersRepository extends EntityGraphJpaRepository<OrderEntity, Long> {

  OrderEntity findByName(String name, EntityGraph entityGraph);

}
OrdersRepository ordersRepository;
Long orderId = 1L;

OrderEntity order = ordersRepository.findById(
  orderId,
  OrderEntity.graph().orderRequest().provider().build()
).orElseThrow(
  () -> new ServiceException("Can't find orderId=" + orderId)
);
Optional<T> findById(ID id, EntityGraph entityGraph);
public abstract class EntityGraphBuilder<T> {

    private List<String> result = new ArrayList<>();

    protected T self;

    public T add(String path) {
        result.add(path);
        return self;
    }

    public DynamicEntityGraph build() {
        return new DynamicEntityGraph(EntityGraphType.FETCH, result);
    }

}
@Entity
public class OrderEntity {

    @Id
    private Long id;

    @Column
    private name;

    @ManyToOne(fetch = FetchType.LAZY)
    private OrderRequestEntity orderRequest;

    @ManyToOne(fetch = FetchType.LAZY)
    private ProviderEntity provider;

    public static GraphBuilder graph() {
        return new GraphBuilder();
    }

    public static class GraphBuilder extends EntityGraphBuilder<GraphBuilder> {

        private GraphBuilder() {
            self = this;
        }

        public GraphBuilder orderRequest() {
            return add("orderRequest");
        }

        public GraphBuilder provider() {
            return add("provider");
        }

    }

}
@Repository
public interface OrdersRepository extends EntityGraphJpaRepository<OrderEntity, Long> {

  OrderEntity findByName(String name, EntityGraph entityGraph);

}
OrdersRepository ordersRepository;
Long orderId = 1L;

OrderEntity order = ordersRepository.findById(
  orderId,
  OrderEntity.graph().orderRequest().provider().build()
).orElseThrow(
  () -> new ServiceException("Can't find orderId=" + orderId)
);
Optional<T> findById(ID id, EntityGraph entityGraph);
public abstract class EntityGraphBuilder<T> {

    private List<String> result = new ArrayList<>();

    protected T self;

    public T add(String path) {
        result.add(path);
        return self;
    }

    public DynamicEntityGraph build() {
        return new DynamicEntityGraph(EntityGraphType.FETCH, result);
    }

}
@Entity
public class OrderEntity {

    @Id
    private Long id;

    @Column
    private name;

    @ManyToOne(fetch = FetchType.LAZY)
    private OrderRequestEntity orderRequest;

    @ManyToOne(fetch = FetchType.LAZY)
    private ProviderEntity provider;

    public static GraphBuilder graph() {
        return new GraphBuilder();
    }

    public static class GraphBuilder extends EntityGraphBuilder<GraphBuilder> {

        private GraphBuilder() {
            self = this;
        }

        public GraphBuilder orderRequest() {
            return add("orderRequest");
        }

        public GraphBuilder provider() {
            return add("provider");
        }

    }

}
@Repository
public interface OrdersRepository extends EntityGraphJpaRepository<OrderEntity, Long> {

  OrderEntity findByName(String name, EntityGraph entityGraph);

}
OrdersRepository ordersRepository;
Long orderId = 1L;

OrderEntity order = ordersRepository.findById(
  orderId,
  OrderEntity.graph().orderRequest().provider().build()
).orElseThrow(
  () -> new ServiceException("Can't find orderId=" + orderId)
);
Optional<T> findById(ID id, EntityGraph entityGraph);
public abstract class EntityGraphBuilder<T> {

    private List<String> result = new ArrayList<>();

    protected T self;

    public T add(String path) {
        result.add(path);
        return self;
    }

    public DynamicEntityGraph build() {
        return new DynamicEntityGraph(EntityGraphType.FETCH, result);
    }

}
@Entity
public class OrderEntity {

    @Id
    private Long id;

    @Column
    private name;

    @ManyToOne(fetch = FetchType.LAZY)
    private OrderRequestEntity orderRequest;

    @ManyToOne(fetch = FetchType.LAZY)
    private ProviderEntity provider;

    public static GraphBuilder graph() {
        return new GraphBuilder();
    }

    public static class GraphBuilder extends EntityGraphBuilder<GraphBuilder> {

        private GraphBuilder() {
            self = this;
        }

        public GraphBuilder orderRequest() {
            return add("orderRequest");
        }

        public GraphBuilder provider() {
            return add("provider");
        }

    }

}
@Repository
public interface OrdersRepository extends EntityGraphJpaRepository<OrderEntity, Long> {

  OrderEntity findByName(String name, EntityGraph entityGraph);

}
OrdersRepository ordersRepository;
Long orderId = 1L;

OrderEntity order = ordersRepository.findById(
  orderId,
  OrderEntity.graph().orderRequest().provider().build()
).orElseThrow(
  () -> new ServiceException("Can't find orderId=" + orderId)
);

nexus-staging-maven-plugin: maven deploy failed: An API incompatibility was encountered while executing

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export MAVEN_OPTS="--add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED --add-opens=java.desktop/java.awt.font=ALL-UNNAMED"
mvn deploy
<plugin>
  <groupId>org.sonatype.plugins</groupId>
  <artifactId>nexus-staging-maven-plugin</artifactId>
  <version>1.6.8</version>
  <extensions>true</extensions>
  <configuration>
    <serverId>ossrh</serverId>
    <nexusUrl>https://s01.oss.sonatype.org/</nexusUrl>
    <autoReleaseAfterClose>true</autoReleaseAfterClose>
  </configuration>
  <dependencies>
    <dependency>
      <groupId>com.thoughtworks.xstream</groupId>
      <artifactId>xstream</artifactId>
      <version>1.4.15</version> <!-- apparently this needs to be exactly this version -->
    </dependency>
  </dependencies>
</plugin>
export MAVEN_OPTS="--add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED --add-opens=java.desktop/java.awt.font=ALL-UNNAMED"
mvn deploy
<plugin>
  <groupId>org.sonatype.plugins</groupId>
  <artifactId>nexus-staging-maven-plugin</artifactId>
  <version>1.6.8</version>
  <extensions>true</extensions>
  <configuration>
    <serverId>ossrh</serverId>
    <nexusUrl>https://s01.oss.sonatype.org/</nexusUrl>
    <autoReleaseAfterClose>true</autoReleaseAfterClose>
  </configuration>
  <dependencies>
    <dependency>
      <groupId>com.thoughtworks.xstream</groupId>
      <artifactId>xstream</artifactId>
      <version>1.4.15</version> <!-- apparently this needs to be exactly this version -->
    </dependency>
  </dependencies>
</plugin>

Spring data JPA retrieve data with between two dates not working

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public class TransactionSearchSpecification {

    private static final String AMD = "amd";
    private static final String CREATED_DATE = "createdDate";

    public static Specification<Transaction> getTransactionBySpecification(
        TransactionSearchCriteria transactionSearchCriteria) {

        return (root, query, criteriaBuilder) -> {
            List<Predicate> predicates = new ArrayList<>();
            
            if( !CollectionUtils.isEmpty( transactionSearchCriteria.getAmdList() ) ) {
                predicates.add( root.get( SKU ).in( transactionSearchCriteria.getAmdList() ) );
            }

            String fromDate = transactionSearchCriteria.getFromDate();
            String toDate = transactionSearchCriteria.getToDate();
            if( !StringUtils.isEmpty( fromDate ) && !StringUtils.isEmpty(
                toDate ) {
                try {
                  Instant fromInstant = this.fromString(fromDate);
                  Instant toInstant = this.fromString(toDate);
                  predicates.add(
                    criteriaBuilder.between(
                      root.get( CREATED_DATE ), fromInstant, toInstant
                    )
                  );
                } catch (DateTimeParseException dtpe) {
                  // invalid format, consider log the error, etcetera
                  dtpe.printStackTrace();
                }
            }
           
            return criteriaBuilder.and( predicates.toArray( new Predicate[ 0 ] ) );
        };
    }

    // This method is suitable for being defined probably in a common, utility class
    // Following, for example, the advice provided in this SO question
    // https://stackoverflow.com/questions/50299639/converting-string-to-instant
    private Instant fromString(final String localDateTimeString) throws DateTimeParseException {
      if (StringUtils.isEmpty(localDateTimeString) {
        return null;
      }

      // Convert String to LocalDateTime
      LocalDateTime localDateTime = LocalDateTime.parse(
        localDateTimeString,
        DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm" , Locale.US )
      );

      // Provide the appropriate ZoneId
      Instant result = localDateTime
        .atZone(ZoneId.of("Asia/Kolkata"))
        .toInstant();

      // Return the obtained instant
      result;
    }
}
public class TransactionSearchSpecification {

    private static final String AMD = "amd";
    private static final String CREATED_DATE = "createdDate";

    public static Specification<Transaction> getTransactionBySpecification(
        TransactionSearchCriteria transactionSearchCriteria) {

        return (root, query, criteriaBuilder) -> {
            List<Predicate> predicates = new ArrayList<>();
            
            if( !CollectionUtils.isEmpty( transactionSearchCriteria.getAmdList() ) ) {
                predicates.add( root.get( SKU ).in( transactionSearchCriteria.getAmdList() ) );
            }

            LocalDateTime fromDate = transactionSearchCriteria.getFromDate();
            LocalDateTime toDate = transactionSearchCriteria.getToDate();
            if( fromDate != null && toDate != null ) {
                Instant fromInstant = this.fromLocalDateTime(fromDate);
                Instant toInstant = this.fromLocalDateTime(toDate);
                predicates.add(
                  criteriaBuilder.between(
                    root.get( CREATED_DATE ), fromInstant, toInstant
                  )
                );
            }

           
            return criteriaBuilder.and( predicates.toArray( new Predicate[ 0 ] ) );
        };
    }

    // Again, this method is suitable for being defined probably in a common, utility class
    private Instant fromLocalDateTime(final LocalDateTime localDateTime) {
      if (localDateTime == null) {
        return null;
      }

      // Provide the appropriate ZoneId
      Instant result = localDateTime
        .atZone(ZoneId.of("Asia/Kolkata"))
        .toInstant();

      // Return the obtained instant
      result;
    }
}
public class TransactionSearchSpecification {

    private static final String AMD = "amd";
    private static final String CREATED_DATE = "createdDate";

    public static Specification<Transaction> getTransactionBySpecification(
        TransactionSearchCriteria transactionSearchCriteria) {

        return (root, query, criteriaBuilder) -> {
            List<Predicate> predicates = new ArrayList<>();
            
            if( !CollectionUtils.isEmpty( transactionSearchCriteria.getAmdList() ) ) {
                predicates.add( root.get( SKU ).in( transactionSearchCriteria.getAmdList() ) );
            }

            String fromDate = transactionSearchCriteria.getFromDate();
            String toDate = transactionSearchCriteria.getToDate();
            if( !StringUtils.isEmpty( fromDate ) && !StringUtils.isEmpty(
                toDate ) {
                try {
                  Instant fromInstant = this.fromString(fromDate);
                  Instant toInstant = this.fromString(toDate);
                  predicates.add(
                    criteriaBuilder.between(
                      root.get( CREATED_DATE ), fromInstant, toInstant
                    )
                  );
                } catch (DateTimeParseException dtpe) {
                  // invalid format, consider log the error, etcetera
                  dtpe.printStackTrace();
                }
            }
           
            return criteriaBuilder.and( predicates.toArray( new Predicate[ 0 ] ) );
        };
    }

    // This method is suitable for being defined probably in a common, utility class
    // Following, for example, the advice provided in this SO question
    // https://stackoverflow.com/questions/50299639/converting-string-to-instant
    private Instant fromString(final String localDateTimeString) throws DateTimeParseException {
      if (StringUtils.isEmpty(localDateTimeString) {
        return null;
      }

      // Convert String to LocalDateTime
      LocalDateTime localDateTime = LocalDateTime.parse(
        localDateTimeString,
        DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm" , Locale.US )
      );

      // Provide the appropriate ZoneId
      Instant result = localDateTime
        .atZone(ZoneId.of("Asia/Kolkata"))
        .toInstant();

      // Return the obtained instant
      result;
    }
}
public class TransactionSearchSpecification {

    private static final String AMD = "amd";
    private static final String CREATED_DATE = "createdDate";

    public static Specification<Transaction> getTransactionBySpecification(
        TransactionSearchCriteria transactionSearchCriteria) {

        return (root, query, criteriaBuilder) -> {
            List<Predicate> predicates = new ArrayList<>();
            
            if( !CollectionUtils.isEmpty( transactionSearchCriteria.getAmdList() ) ) {
                predicates.add( root.get( SKU ).in( transactionSearchCriteria.getAmdList() ) );
            }

            LocalDateTime fromDate = transactionSearchCriteria.getFromDate();
            LocalDateTime toDate = transactionSearchCriteria.getToDate();
            if( fromDate != null && toDate != null ) {
                Instant fromInstant = this.fromLocalDateTime(fromDate);
                Instant toInstant = this.fromLocalDateTime(toDate);
                predicates.add(
                  criteriaBuilder.between(
                    root.get( CREATED_DATE ), fromInstant, toInstant
                  )
                );
            }

           
            return criteriaBuilder.and( predicates.toArray( new Predicate[ 0 ] ) );
        };
    }

    // Again, this method is suitable for being defined probably in a common, utility class
    private Instant fromLocalDateTime(final LocalDateTime localDateTime) {
      if (localDateTime == null) {
        return null;
      }

      // Provide the appropriate ZoneId
      Instant result = localDateTime
        .atZone(ZoneId.of("Asia/Kolkata"))
        .toInstant();

      // Return the obtained instant
      result;
    }
}

Error Mapping Geometry type Point in PostgreSQL

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spring:
 jpa:
   properties.hibernate.dialect: org.hibernate.spatial.dialect.postgis.PostgisDialect
   database-platform: org.hibernate.spatial.dialect.postgis.PostgisDialect
   hibernate:
      dialect: org.hibernate.spatial.dialect.postgis.PostgisDialect
@Column(name = "location", columnDefinition="geography")
private Point location;

How to join custom queries spring boot

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@Data
public class StateCityCensusDto {

    private StateCensus stateCensus;
    private List<CityCensus> cities;

}
    Integer getCode();
    String getName();
    Long getCityPopulation();
    //add stateId retrieve from query
    Long getStateId();
}


      List<CensusStateStats> stateCensusList = //retrieve from the db;
      List<CensusStateCitiesStats>  //retrieve from the db;
      List<StateCityCensusDto> stateCityCensusList = new ArrayList<>();

    stateCensusList.forEach(stateCensus -> {
         StateCityCensusDto stateCityCensus = new StateCityCensusDto();
         stateCityCensus.setStateCensus(stateCensus);
         stateCityCensus.setCities(cityCensusList.stream()
                  .filter(c -> c.getStateId() == stateCensus.getId())
                  .collect(Collectors.toList()));
                   
        stateCityCensusList.add(stateCityCensus);
    });


@Data
public class StateCityCensusDto {

    private StateCensus stateCensus;
    private List<CityCensus> cities;

}
    Integer getCode();
    String getName();
    Long getCityPopulation();
    //add stateId retrieve from query
    Long getStateId();
}


      List<CensusStateStats> stateCensusList = //retrieve from the db;
      List<CensusStateCitiesStats>  //retrieve from the db;
      List<StateCityCensusDto> stateCityCensusList = new ArrayList<>();

    stateCensusList.forEach(stateCensus -> {
         StateCityCensusDto stateCityCensus = new StateCityCensusDto();
         stateCityCensus.setStateCensus(stateCensus);
         stateCityCensus.setCities(cityCensusList.stream()
                  .filter(c -> c.getStateId() == stateCensus.getId())
                  .collect(Collectors.toList()));
                   
        stateCityCensusList.add(stateCityCensus);
    });


@Data
public class StateCityCensusDto {

    private StateCensus stateCensus;
    private List<CityCensus> cities;

}
    Integer getCode();
    String getName();
    Long getCityPopulation();
    //add stateId retrieve from query
    Long getStateId();
}


      List<CensusStateStats> stateCensusList = //retrieve from the db;
      List<CensusStateCitiesStats>  //retrieve from the db;
      List<StateCityCensusDto> stateCityCensusList = new ArrayList<>();

    stateCensusList.forEach(stateCensus -> {
         StateCityCensusDto stateCityCensus = new StateCityCensusDto();
         stateCityCensus.setStateCensus(stateCensus);
         stateCityCensus.setCities(cityCensusList.stream()
                  .filter(c -> c.getStateId() == stateCensus.getId())
                  .collect(Collectors.toList()));
                   
        stateCityCensusList.add(stateCityCensus);
    });


Hibernate Interceptor not working after upgrading to Hibernate 5

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Session session = sessionFactory.withOptions()
                  .interceptor(new CustomInterceptor())
                  .openSession();

Stats in entity response DTO

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public class CustomerStatsResponseDto {
    private Long id;
    private String name;
    private CustomerDto customerStats;

    public CustomerStatsResponseDto(CustomerStatsResponse customerStatsResponse) {
        this.id = customerStatsResponse.getId();
        this.name = customerStatsResponse.getName();
        this.customerStats = new CustomerStatsDto(customerStatsResponse.getTotalAmount(), customerStatsResponse.getCountOrders(),
          customerStatsResponse.getCountOrdersPending(), customerStatsResponse.getCountOrdersCompleted());
    }
}
public class CustomerStatsDto {
    private Double totalAmount;
    private Long countOrders;
    private Long countOrdersPending;
    private Long countOrdersCompleted;

    public CustomerStatsDto(Double totalAmount, Long countOrders, Long countOrdersPending, Long countOrdersCompleted) {
        this.totalAmount = totalAmount;
        this.countOrders = countOrders;
        this.countOrdersPending = countOrdersPending;
        this.countOrdersCompleted = countOrdersCompleted;
    }
}
@RestController
@RequestMapping("api/v1/customers")
@RequiredArgsConstructor
public class CustomerController {

    private final CustomerService customerService;

    @GetMapping
    public ResponseEntity<List<Customer>> findAll() {
        return ResponseEntity.ok(customerService.findAll());
    }

    @GetMapping("/stats")
    public ResponseEntity<List<CustomerStatsResponseDto>> customerStats() {
        return ResponseEntity.ok(customerService.customerStats().stream()
                .map(customerStatsResponse -> new CustomerStatsResponseDto(customerStatsResponse))
                .collect(Collectors.toList()));
    }
}
public class CustomerStatsResponseDto {
    private Long id;
    private String name;
    private CustomerDto customerStats;

    public CustomerStatsResponseDto(CustomerStatsResponse customerStatsResponse) {
        this.id = customerStatsResponse.getId();
        this.name = customerStatsResponse.getName();
        this.customerStats = new CustomerStatsDto(customerStatsResponse.getTotalAmount(), customerStatsResponse.getCountOrders(),
          customerStatsResponse.getCountOrdersPending(), customerStatsResponse.getCountOrdersCompleted());
    }
}
public class CustomerStatsDto {
    private Double totalAmount;
    private Long countOrders;
    private Long countOrdersPending;
    private Long countOrdersCompleted;

    public CustomerStatsDto(Double totalAmount, Long countOrders, Long countOrdersPending, Long countOrdersCompleted) {
        this.totalAmount = totalAmount;
        this.countOrders = countOrders;
        this.countOrdersPending = countOrdersPending;
        this.countOrdersCompleted = countOrdersCompleted;
    }
}
@RestController
@RequestMapping("api/v1/customers")
@RequiredArgsConstructor
public class CustomerController {

    private final CustomerService customerService;

    @GetMapping
    public ResponseEntity<List<Customer>> findAll() {
        return ResponseEntity.ok(customerService.findAll());
    }

    @GetMapping("/stats")
    public ResponseEntity<List<CustomerStatsResponseDto>> customerStats() {
        return ResponseEntity.ok(customerService.customerStats().stream()
                .map(customerStatsResponse -> new CustomerStatsResponseDto(customerStatsResponse))
                .collect(Collectors.toList()));
    }
}
public class CustomerStatsResponseDto {
    private Long id;
    private String name;
    private CustomerDto customerStats;

    public CustomerStatsResponseDto(CustomerStatsResponse customerStatsResponse) {
        this.id = customerStatsResponse.getId();
        this.name = customerStatsResponse.getName();
        this.customerStats = new CustomerStatsDto(customerStatsResponse.getTotalAmount(), customerStatsResponse.getCountOrders(),
          customerStatsResponse.getCountOrdersPending(), customerStatsResponse.getCountOrdersCompleted());
    }
}
public class CustomerStatsDto {
    private Double totalAmount;
    private Long countOrders;
    private Long countOrdersPending;
    private Long countOrdersCompleted;

    public CustomerStatsDto(Double totalAmount, Long countOrders, Long countOrdersPending, Long countOrdersCompleted) {
        this.totalAmount = totalAmount;
        this.countOrders = countOrders;
        this.countOrdersPending = countOrdersPending;
        this.countOrdersCompleted = countOrdersCompleted;
    }
}
@RestController
@RequestMapping("api/v1/customers")
@RequiredArgsConstructor
public class CustomerController {

    private final CustomerService customerService;

    @GetMapping
    public ResponseEntity<List<Customer>> findAll() {
        return ResponseEntity.ok(customerService.findAll());
    }

    @GetMapping("/stats")
    public ResponseEntity<List<CustomerStatsResponseDto>> customerStats() {
        return ResponseEntity.ok(customerService.customerStats().stream()
                .map(customerStatsResponse -> new CustomerStatsResponseDto(customerStatsResponse))
                .collect(Collectors.toList()));
    }
}

Why jpa custom query returns more results

copy iconCopydownload iconDownload
@Query("SELECT e FROM EmployeeEntity e WHERE e.firstName like :firstName")
List<EmployeeEntity> findByFirstName(@Param("firstName") String firstName);

@Query("SELECT e FROM EmployeeEntity e WHERE e.id = :id")
EmployeeEntity findById2(@Param("id") long id);
@Repository
public interface EmployeeRepository extends JpaRepository<EmployeeEntity, Long> {

    @Query("SELECT e FROM EmployeeEntity e WHERE e.firstName like :firstName")
    List<EmployeeEntity> findByFirstName(@Param("firstName") String firstName);

    @Query("SELECT e FROM EmployeeEntity e WHERE e.id = :id")
    EmployeeEntity findById2(@Param("id") long id);

}

sql, javax.persistence.criteria: check a database table column with comma separated string values against a list of strings

copy iconCopydownload iconDownload
SELECT * FROM t
WHERE string_to_array(mycolumn,',') <@ ARRAY['A','B','C']
CREATE INDEX idx_t_mycolumn_gin ON t USING gin (string_to_array(mycolumn,','));
SELECT * FROM t
WHERE string_to_array(mycolumn,',') <@ ARRAY['A','B','C']
CREATE INDEX idx_t_mycolumn_gin ON t USING gin (string_to_array(mycolumn,','));

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QUESTION

How to set fetch-size in Spring-Data-JDBC

Asked 2022-Apr-15 at 14:09

I use Spring-Data-JDBC (not JPA) and want to set the fetch-size.

I know that the the classic org.springframwork.jdbc.core.JdbcTemplate has a setFetchSize(int) method, but I have Spring-Data-JDBC repository:

org.springframework.data.repository.Repository;
org.springframework.data.jdbc.repository.query.Query;

/** This is a Spring Data <b>JDBC</b> (JDBC not JPA!). */      
public interface UserDao extends  Repository<User, Long> {
  
    @Query(value = UserRowMapper.SELECT_BY_NAME_STATEMENT
           rowMapperClass = UserRowMapper.class)
    Optional<User> findByName(String name);
}

and this is the relevant part of the configuration:

@Configuration
@EnableJdbcRepositories 
public class AppConfigSpringDataJdbc extends AbstractJdbcConfiguration {
   @Autowired
   private DataSource dataSource;

   @Bean
   public NamedParameterJdbcTemplate namedParameterJdbcTemplate() {
       return new NamedParameterJdbcTemplate(this.dataSource);
   }
}

So my question is: How/Where to set the sql query fetch-size when using Spring-Data-JDBC, either by query or in general?

(The common solutions for Spring-Data-JPA will not work, because there is no persistence.xml or javax.persistence.QueryHintannotation because it is JDBC)

ANSWER

Answered 2022-Apr-15 at 14:09

You can create NamedParameterJdbcTemplate using custom JdbcTemplate.

@Bean
JdbcOperations jdbcOperations(DataSource dataSource) {
    final var jdbcTemplate = new JdbcTemplate(dataSource);
    jdbcTemplate.setFetchSize(100);
    return jdbcTemplate;
}

@Bean
NamedParameterJdbcOperations namedParameterJdbcOperations(JdbcOperations operations) {
    return new NamedParameterJdbcTemplate(operations);
}

Source https://stackoverflow.com/questions/71884390

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install javax.persistence

You can download it from GitHub.
You can use javax.persistence like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the javax.persistence component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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