correct way to set tablename in named query in reactiveCrudRepository api - spring-boot

How to set tablename name in named query? I have tried as below but
this line String query="delete from :table1 where name=:name"; is causing error to execute query.
#Repository
public interface DeleteRepo extends ReactiveCrudRepository<Emp,String>{
String query="delete from :table1 where name=:name";
#Query(query)
Mono<Integer> delete(#Param(name) String name, #Param(table1) String table1;
}

add nativeQuery = true also and you should have #Transactional and #Modifying for deletion.
#Modifying
#Transactional
#Query(value = "delete from :table1 where name=:name", nativeQuery=true)
Mono<Integer> delete(#Param(name) String name, #Param(table1) String table1);

Related

JPA #Query annotation does not seem to be using paramter

I have a Spring Boot application using JPA/Hibernate as entity management/modeling. I have the following user class:
#Entity
public class User {
#Id
private Long Id;
private String name;
//more fields, getters and setters below
}
I want users of my application to be able to search for users by name. So in my repository interface, I have:
public interface UserRepository extends JpaRepository<User, Long> {
#Query(value = "SELECT u from User u WHERE lower(u.name) LIKE lower(:name)")
List<User> findByNameLike(#Param(value="name") String nmae);
}
Then in my UserController, I have:
#GetMapping(value = "/users/")
public #ResponseBody List<User> search(#RequestParam String name) {
return this.userRepository.findByNameLike(name);
}
This always returns an empty list. I know the name parameter is coming in correctly.
Moreover, I do know that it is recognizing the #Query annotation, because if I change the query to something like
SELECT u FROM User u
it will return me all users. Or if I change it to
SELECT u from User u WHERE u.name = '%Bob%'
and remove the parameter from the method, it will return all users whose name is Bob. I've tried other variations of the query, such as
SELECT u FROM User u WHERE lower(u.name) LIKE CONCAT('%', lower(:name), '%')
SELECT u FROM User u WHERE u.name = :name (even a simple equals doesn't work)
and so on and so forth. Every source I look at whose syntax I copy seems to say I'm writing the query right, so I think something else must be going on.
I've also tried letting Spring generate the query for me, using
public List<User> findByNameLike(String name);
public List<User> findByNameContaining(String name);
which also don't seem to work. Any help would be appreciated here!

Pagination error in SpringBoot "Incorrect syntax near '#P0'" [duplicate]

I'm using Spring Data JPA, and when I use #Query to to define a query WITHOUT Pageable, it works:
public interface UrnMappingRepository extends JpaRepository<UrnMapping, Long> {
#Query(value = "select * from internal_uddi where urn like %?1% or contact like %?1%",
nativeQuery = true)
List<UrnMapping> fullTextSearch(String text);
}
But if I add the second param Pageable, the #Query will NOT work, and Spring will parse the method's name, then throw the exception No property full found. Is this a bug?
public interface UrnMappingRepository extends JpaRepository<UrnMapping, Long> {
#Query(value = "select * from internal_uddi where urn like %?1% or contact like %?1%",
nativeQuery = true)
Page<UrnMapping> fullTextSearch(String text, Pageable pageable);
}
You can use pagination with a native query. It is documented here: Spring Data JPA - Reference Documentation
"You can however use native queries for pagination by specifying the count query yourself:
Example 59. Declare native count queries for pagination at the query method using #Query"
public interface UserRepository extends JpaRepository<User, Long> {
#Query(value = "SELECT * FROM USERS WHERE LASTNAME = ?1",
countQuery = "SELECT count(*) FROM USERS WHERE LASTNAME = ?1",
nativeQuery = true)
Page<User> findByLastname(String lastname, Pageable pageable);
}
A similar question was asked on the Spring forums, where it was pointed out that to apply pagination, a second subquery must be derived. Because the subquery is referring to the same fields, you need to ensure that your query uses aliases for the entities/tables it refers to. This means that where you wrote:
select * from internal_uddi where urn like
You should instead have:
select * from internal_uddi iu where iu.urn like ...
Considering that the UrnMapping class is mapped to the internal_uddi table, I would suggest this:
#Repository
public interface UrnMappingRepository extends JpaRepository<UrnMapping, Long> {
#Query(value = "select iu from UrnMapping iu where iu.urn like %:text% or iu.contact like %:text%")
Page<UrnMapping> fullTextSearch(#Param("text") String text, Pageable pageable);
}
Please note that you might have to turn off native queries with dynamic requests.
With #Query , we can use pagination as well where you need to pass object of Pageable class at end of JPA method
For example:
Pageable pageableRequest = new PageRequest(page, size, Sort.Direction.DESC, rollNo);
Where,
page = index of page (index start from zero)
size = No. of records
Sort.Direction = Sorting as per rollNo
rollNo = Field in User class
UserRepository repo
repo.findByFirstname("John", pageableRequest);
public interface UserRepository extends JpaRepository<User, Long> {
#Query(value = "SELECT * FROM USER WHERE FIRSTNAME = :firstname)
Page<User> findByLastname(#Param("firstname") String firstname, Pageable pageable);
}
Please reference :Spring Data JPA #Query, if you are using Spring Data JPA version 2.0.4 and later. Sample like below:
#Query(value = "SELECT u FROM User u ORDER BY id")
Page<User> findAllUsersWithPagination(Pageable pageable);
Declare native count queries for pagination at the query method by using #Query
public interface UserRepository extends JpaRepository<User, Long> {
#Query(value = "SELECT * FROM USERS WHERE LASTNAME = ?1",
countQuery = "SELECT count(*) FROM USERS WHERE LASTNAME = ?1",
nativeQuery = true)
Page<User> findByLastname(String lastname, Pageable pageable);
}
Hope this helps
https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#jpa.query-methods
Rewrite your query to:
select iu from internal_uddi iu where iu.urn....
description: http://forum.spring.io/forum/spring-projects/data/126415-is-it-possible-to-use-query-and-pageable?p=611398#post611398
I found it works different among different jpa versions, for debug, you'd better add this configurations to show generated sql, it will save your time a lot !
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.format_sql=true
for spring boot 2.1.6.RELEASE, it works good!
Sort sort = new Sort(Sort.Direction.DESC, "column_name");
int pageNumber = 3, pageSize = 5;
Pageable pageable = PageRequest.of(pageNumber - 1, pageSize, sort);
#Query(value = "select * from integrity_score_view " +
"where (?1 is null or data_hour >= ?1 ) " +
"and (?2 is null or data_hour <= ?2 ) " +
"and (?3 is null or ?3 = '' or park_no = ?3 ) " +
"group by park_name, data_hour ",
countQuery = "select count(*) from integrity_score_view " +
"where (?1 is null or data_hour >= ?1 ) " +
"and (?2 is null or data_hour <= ?2 ) " +
"and (?3 is null or ?3 = '' or park_no = ?3 ) " +
"group by park_name, data_hour",
nativeQuery = true
)
Page<IntegrityScoreView> queryParkView(Date from, Date to, String parkNo, Pageable pageable);
you DO NOT write order by and limit, it generates the right sql
I had the same issue - without Pageable method works fine.
When added as method parameter - doesn't work.
After playing with DB console and native query support came up to decision that method works like it should. However, only for upper case letters.
Logic of my application was that all names of entity starts from upper case letters.
Playing a little bit with it. And discover that IgnoreCase at method name do the "magic" and here is working solution:
public interface EmployeeRepository
extends PagingAndSortingRepository<Employee, Integer> {
Page<Employee> findAllByNameIgnoreCaseStartsWith(String name, Pageable pageable);
}
Where entity looks like:
#Data
#Entity
#Table(name = "tblEmployees")
public class Employee {
#Id
#Column(name = "empID")
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
#NotEmpty
#Size(min = 2, max = 20)
#Column(name = "empName", length = 25)
private String name;
#Column(name = "empActive")
private Boolean active;
#ManyToOne
#JoinColumn(name = "emp_dpID")
private Department department;
}
When using nativeQuery that is having (nativeQuery = true), you may do the pagination yourself in the query by adding (LIMIT :sizeValue OFFSET :page)
Note:
Your page value passed to this method should be offset * size
Example
#Query(value = "SELECT * FROM person " +
"LIMIT ?1 OFFSET ?2", nativeQuery = true)
Optional<List<TDriverJob>> findPersons(int size, int page);
I tried all above solution and non worked , finally I removed the Sorting from Pagination and it worked
the following tutorial helped me
-> https://www.baeldung.com/spring-data-jpa-query
At this point 4.3. Spring Data JPA Versions Prior to 2.0.4
VERY IMPORTANT to add \ n-- #pageable \ n
Without this I was wrong
Also the pagination setting must be without ordering
PageRequest paginaConf = new PageRequest ((param1 - 1)
, param2);
Finally to convert the Page <Object []>
Page <Object []> list = myQueryofRepo ();
List <XXXModel> lstReturn = myConversor (list.getContent ());
Page <XXXModel> ret = new PageImpl <XXXModel> (lstReturn, pageConf, param2);
This bugged me for a while but I managed with a very smooth solution.
The challenge is JPA did not automatically detect the count query so I resolved to use the countName which according JPA docs Returns the name of the javax.persistence.NamedQuery to be used to execute count queries when pagination is used. Will default to the named query name configured suffixed by .count.
So I created a named query
#NamedNativeQuery(
name = "[queryName].count",
query = [your count query],
resultSetMapping = "[query resultSetMapping name]"
)
}
As indicated, the count query should be suffixed with .count
Count query returns Long so add the resultSetMapping as
#SqlResultSetMapping(
name="[query resultSetMapping name]",
columns={#ColumnResult(name="count", type = Long.class)})
Then in your repository, use the count query as indicated below
#Query(countName ="[queryName].count" , nativeQuery = true)
Page<Object> [mainQuery](...params)
Hope this helps!

Annotations are not allowed here

I'm creating a UserRepository which implements JpaRepository and works with User entity. I need a method to update username. I decided to do it with the help of #Query. But it's marked by Intellij. Here is my code for repository:
#Repository
public interface UserRepository extends JpaRepository<User, Long> {
#Modifying
#Query(value = "update User user set user.name= %?username"))
void updatingUser(#Param(value = "username") String username);
}
And for Entity:
#Entity
#Table(name = "users")
public class User {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "user_id")
private Long id;
#NotNull
#Column(name = "user_name")
private String username;
}
And I faced with such a problem: "Annotations are not allowed here" says Intellij Idea and marks the line with #Query annotation. And it made me confused
In my case, I accidentally typed ";" at the end of #Query. Might help someone else.
Sorry, guys. It was so stupid for me to write double quotes in the end of this line. But I actually don't understand why Intellij didn't notice that but started to mark this line with another mistake
In my case, I accidently typed an ';' at the end of the #Query sentence.
#Query("SELECT a FROM Author a")
#QueryHints(value = #QueryHint(name = HINT_FETCH_SIZE, value= "" + Integer.MIN_VALUE));
Stream<Author> streamAll();
After I removed the ';' from the #QueryHints, then it worked perfectly.
#Query("SELECT a FROM Author a")
#QueryHints(value = #QueryHint(name = HINT_FETCH_SIZE, value= "" + Integer.MIN_VALUE))
Stream<Author> streamAll();
Sorry this was 4 years too late, but you have an extra ')' at the end of your #Query line
Using the #Query annotation in this place is absolutely appropriate. But your query is not quite correct.
Query parameters can be named - ':name' or indexed - '?1'.
You should use update queries with 'where' clause otherwise you will update all records.
You code should be like this:
#Modifying
#Query("update User u set u.name = ?1 where u.name = ?2")
void updateByName(String value, String name);
Or like this:
#Modifying
#Query("update User u set u.name = :value where u.name = :name")
void updateByName(#Param("value") String value, #Param("name") String name);
Pay attention - while the 'name' field is not unique you will update ALL users with given 'name'. To update only one user you must use unique field or primary key in the 'where' clause, for example:
#Modifying
#Query("update User u set u.name = ?1 where u.id = ?2")
void updateById(String value, Long id);
By the way if you need to update all user which have specific name pattern - use 'like' operator:
#Modifying
#Query("update User u set u.name = ?1 where u.name like '%'||?2||'%'")
void updateByNameLike(String value, String name);
Useful info:
Spring Data JPA - Reference Documentation
JPQL Language Reference
SQL Tutorial
P.S. Annotation #Repository is not necessary
Well, I got this issue with the following query after copying from SQLyog.
SELECT id FROM (SELECT * FROM departments ORDER BY id) dpt_sorted, (SELECT #pv := '2') initialisation WHERE FIND_IN_SET(parent_dept, #pv) AND LENGTH(#pv := CONCAT(#pv, ',', id));
But when i typed the query, the error message disappeared. May be copy and paste issue in my case. This could be helpful.
In my case, I was trying to use it in the constructor...

How to insert into db in spring-data?

I want to make a request that inserts data into my database. The table has 4 columns: ID_DOCUMENT (PK), ID_TASK, DESCRIPTION, FILEPATH
Entity
...
#Column(name = "ID_TASK")
private Long idTask;
#Column(name = "DESCRIPTION")
private String description;
#Column(name = "FILEPATH")
private String filepath;
...
Repository
#Modifying
#Query("insert into TaskDocumentEntity c (c.idTask, c.description, c.filepath) values (:id,:description,:filepath)")
public void insertDocumentByTaskId(#Param("id") Long id,#Param("description") String description,#Param("filepath") String filepath);
Controller
#RequestMapping(value = "/services/tasks/addDocument", method = RequestMethod.POST)
#ResponseBody
public void set(#RequestParam("idTask") Long idTask,#RequestParam("description") String description,#RequestParam("filepath") String filepath){
//TaskDocumentEntity document = new TaskDocumentEntity();
taskDocumentRepository.insertDocumentByTaskId(idTask,descriere,filepath);
}
When I run my test, I get this error:
Caused by: org.hibernate.hql.ast.QuerySyntaxException: expecting OPEN, found 'c' near line 1, column 32 [insert into TaskDocumentEntity c (c.idTask, c.descriere, c.filepath) values (:id,:descriere,:filepath)]
I tried to remove the alias c, and still doesn`t work.
Spring data provides out of the box save method used for insertion to database - no need to use #Query. Take a look at core concepts of springData (http://docs.spring.io/spring-data/jpa/docs/current/reference/html/#repositories.core-concepts)
thus in your controller just create object TaskDocumentEntity and pass it to repository
#RequestMapping(value = "/services/tasks/addDocument", method = RequestMethod.POST)
#ResponseBody
public void set(#RequestParam("idTask") Long idTask,#RequestParam("description") String description,#RequestParam("filepath") String filepath){
// assign parameters to taskDocumentEntity by constructor args or setters
TaskDocumentEntity document = new TaskDocumentEntity(idTask,descriere,filepath);
taskDocumentRepository.save(document);
}
There is a way to do this but it depends on the db you're using. Below worked for me in Oracle (using Dual table):
#Repository
public interface DualRepository extends JpaRepository<Dual,Long> {
#Modifying
#Query("insert into Person (id,name,age) select :id,:name,:age from Dual")
public int modifyingQueryInsertPerson(#Param("id")Long id, #Param("name")String name, #Param("age")Integer age);
}
So in your case, it would be (if Oracle):
#Modifying
#Query("insert into TaskDocumentEntity (idTask,description,filepath) select :idTask,:description,:filepath from Dual")
public void insertDocumentByTaskId(#Param("idTask") Long id,#Param("description") String description,#Param("filepath") String filepath)
I'm not sure which db you're using, here's a link which shows at the bottom which db's support select stmts without a from clause : http://modern-sql.com/use-case/select-without-from

Spring data JPA query with parameter properties

What is the simplest way of declaring a Spring data JPA query that uses properties of an input parameter as query parameters?
For example, suppose I have an entity class:
public class Person {
#Id
private long id;
#Column
private String forename;
#Column
private String surname;
}
and another class:
public class Name {
private String forename;
private String surname;
[constructor and getters]
}
... then I would like to write a Spring data repository as follows:
public interface PersonRepository extends CrudRepository<Person, Long> {
#Query("select p from Person p where p.forename = ?1.forename and p.surname = ?1.surname")
findByName(Name name);
}
... but Spring data / JPA doesn't like me specifying property names on the ?1 parameter.
What is the neatest alternative?
This link will help you: Spring Data JPA M1 with SpEL expressions supported. The similar example would be:
#Query("select u from User u where u.firstname = :#{#customer.firstname}")
List<User> findUsersByCustomersFirstname(#Param("customer") Customer customer);
https://spring.io/blog/2014/07/15/spel-support-in-spring-data-jpa-query-definitions
Define the query method with signatures as follows.
#Query(select p from Person p where p.forename = :forename and p.surname = :surname)
User findByForenameAndSurname(#Param("surname") String lastname,
#Param("forename") String firstname);
}
For further details, check the Spring Data JPA reference
What you want is not possible. You have to create two parameters, and bind them separately:
select p from Person p where p.forename = :forename and p.surname = :surname
...
query.setParameter("forename", name.getForename());
query.setParameter("surname", name.getSurname());
You could also solve it with an interface default method:
#Query(select p from Person p where p.forename = :forename and p.surname = :surname)
User findByForenameAndSurname(#Param("surname") String lastname,
#Param("forename") String firstname);
default User findByName(Name name) {
return findByForenameAndSurname(name.getLastname(), name.getFirstname());
}
Of course you'd still have the actual repository function publicly visible...
You can try something like this:
public interface PersonRepository extends CrudRepository<Person, Long> {
#Query("select p from Person AS p"
+ " ,Name AS n"
+ " where p.forename = n.forename "
+ " and p.surname = n.surname"
+ " and n = :name")
Set<Person>findByName(#Param("name") Name name);
}
if we are using JpaRepository then it will internally created the queries.
Sample
findByLastnameAndFirstname(String lastname,String firstname)
findByLastnameOrFirstname(String lastname,String firstname)
findByStartDateBetween(Date date1,Date2)
findById(int id)
Note
if suppose we need complex queries then we need to write manual queries like
#Query("SELECT salesOrder FROM SalesOrder salesOrder WHERE salesOrder.clientId=:clientId AND salesOrder.driver_username=:driver_username AND salesOrder.date>=:fdate AND salesOrder.date<=:tdate ")
#Transactional(readOnly=true)
List<SalesOrder> findAllSalesByDriver(#Param("clientId")Integer clientId, #Param("driver_username")String driver_username, #Param("fdate") Date fDate, #Param("tdate") Date tdate);
The simplicity of Spring Data JPA is that it tries to interpret from the name of the function in repository without specifying any additional #Query or #Param annotations.
If you are supplying the complete name, try to break it down as firstname and lastname and then use something like this -
HotelEntity findByName(String name);
My HotelEntity does contain the field name so JPA tries to interpret on its own to infer the name of the field I am trying to query on and create a subsequent query internally.
Some more evidence from JPA documentation -
Further details - here
Are you working with a #Service too? Because if you are, then you can #Autowired your PersonRepository to the #Service and then in the service just invoke the Name class and use the form that #CuriosMind... proposed:
#Query(select p from Person p where p.forename = :forename and p.surname = :surname)
User findByForenameAndSurname(#Param("surname") String lastname,
#Param("forename") String firstname);
}
and when invoking the method from the repository in the service, you can then pass those parameters.
for using this, you can create a Repository for example this one:
Member findByEmail(String email);
List<Member> findByDate(Date date);
// custom query example and return a member
#Query("select m from Member m where m.username = :username and m.password=:password")
Member findByUsernameAndPassword(#Param("username") String username, #Param("password") String password);
#Autowired
private EntityManager entityManager;
#RequestMapping("/authors/{fname}/{lname}")
public List actionAutherMulti(#PathVariable("fname") String fname, #PathVariable("lname") String lname) {
return entityManager.createQuery("select A from Auther A WHERE A.firstName = ?1 AND A.lastName=?2")
.setParameter(1, fname)
.setParameter(2, lname)
.getResultList();
}

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