How create dynamic JPQL for OneToMany mapping









up vote
-1
down vote

favorite












The code below leads to the following error:
Caused by: org.hibernate.QueryException: illegal attempt to dereference collection [ho0_.id.Mo] with element property reference [value]



Is it possible to use JQL to process dynamic queries for OnToMany mappings? First class is



@Entity
@Table(name = "ho")
public class Ho

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;

@Column(name="str")
private String str;

@OneToMany(mappedBy = "ho",
targetEntity=Mo.class))
private List<Mo> mo;


// ...constructors, getters and setters




Second Class is



@Entity
@Table(name = "mo")
public class Mo

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;

@ManyToOne
@JoinColumn(name="ho_id")
private Ho ho;

@Column(name="value")
private String value;

// ..constructors, getters and setters



And my service implementation class is



 @Transactional
public RfpODto listRfpOByPage(Pageable pageable)

String query = "SELECT h from Ho h " +
"where h.str = :s " +
"and h.mo.value = :v";

Query q = em.createQuery(query,RfpO.class)
.setParameter("s", "str3")
.setParameter("v", "val3");

List<Object> Hos = q.getResultList();
...



Any help will be appreciated !!










share|improve this question



















  • 1




    docs.jboss.org/hibernate/orm/current/userguide/html_single/…
    – JB Nizet
    Nov 11 at 9:14














up vote
-1
down vote

favorite












The code below leads to the following error:
Caused by: org.hibernate.QueryException: illegal attempt to dereference collection [ho0_.id.Mo] with element property reference [value]



Is it possible to use JQL to process dynamic queries for OnToMany mappings? First class is



@Entity
@Table(name = "ho")
public class Ho

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;

@Column(name="str")
private String str;

@OneToMany(mappedBy = "ho",
targetEntity=Mo.class))
private List<Mo> mo;


// ...constructors, getters and setters




Second Class is



@Entity
@Table(name = "mo")
public class Mo

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;

@ManyToOne
@JoinColumn(name="ho_id")
private Ho ho;

@Column(name="value")
private String value;

// ..constructors, getters and setters



And my service implementation class is



 @Transactional
public RfpODto listRfpOByPage(Pageable pageable)

String query = "SELECT h from Ho h " +
"where h.str = :s " +
"and h.mo.value = :v";

Query q = em.createQuery(query,RfpO.class)
.setParameter("s", "str3")
.setParameter("v", "val3");

List<Object> Hos = q.getResultList();
...



Any help will be appreciated !!










share|improve this question



















  • 1




    docs.jboss.org/hibernate/orm/current/userguide/html_single/…
    – JB Nizet
    Nov 11 at 9:14












up vote
-1
down vote

favorite









up vote
-1
down vote

favorite











The code below leads to the following error:
Caused by: org.hibernate.QueryException: illegal attempt to dereference collection [ho0_.id.Mo] with element property reference [value]



Is it possible to use JQL to process dynamic queries for OnToMany mappings? First class is



@Entity
@Table(name = "ho")
public class Ho

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;

@Column(name="str")
private String str;

@OneToMany(mappedBy = "ho",
targetEntity=Mo.class))
private List<Mo> mo;


// ...constructors, getters and setters




Second Class is



@Entity
@Table(name = "mo")
public class Mo

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;

@ManyToOne
@JoinColumn(name="ho_id")
private Ho ho;

@Column(name="value")
private String value;

// ..constructors, getters and setters



And my service implementation class is



 @Transactional
public RfpODto listRfpOByPage(Pageable pageable)

String query = "SELECT h from Ho h " +
"where h.str = :s " +
"and h.mo.value = :v";

Query q = em.createQuery(query,RfpO.class)
.setParameter("s", "str3")
.setParameter("v", "val3");

List<Object> Hos = q.getResultList();
...



Any help will be appreciated !!










share|improve this question















The code below leads to the following error:
Caused by: org.hibernate.QueryException: illegal attempt to dereference collection [ho0_.id.Mo] with element property reference [value]



Is it possible to use JQL to process dynamic queries for OnToMany mappings? First class is



@Entity
@Table(name = "ho")
public class Ho

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;

@Column(name="str")
private String str;

@OneToMany(mappedBy = "ho",
targetEntity=Mo.class))
private List<Mo> mo;


// ...constructors, getters and setters




Second Class is



@Entity
@Table(name = "mo")
public class Mo

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;

@ManyToOne
@JoinColumn(name="ho_id")
private Ho ho;

@Column(name="value")
private String value;

// ..constructors, getters and setters



And my service implementation class is



 @Transactional
public RfpODto listRfpOByPage(Pageable pageable)

String query = "SELECT h from Ho h " +
"where h.str = :s " +
"and h.mo.value = :v";

Query q = em.createQuery(query,RfpO.class)
.setParameter("s", "str3")
.setParameter("v", "val3");

List<Object> Hos = q.getResultList();
...



Any help will be appreciated !!







hibernate spring-boot jpa spring-data-jpa






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 11 at 12:08









Avijit Barua

1,0611215




1,0611215










asked Nov 11 at 9:09









Helen Reeves

151919




151919







  • 1




    docs.jboss.org/hibernate/orm/current/userguide/html_single/…
    – JB Nizet
    Nov 11 at 9:14












  • 1




    docs.jboss.org/hibernate/orm/current/userguide/html_single/…
    – JB Nizet
    Nov 11 at 9:14







1




1




docs.jboss.org/hibernate/orm/current/userguide/html_single/…
– JB Nizet
Nov 11 at 9:14




docs.jboss.org/hibernate/orm/current/userguide/html_single/…
– JB Nizet
Nov 11 at 9:14

















active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);













draft saved

draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53247281%2fhow-create-dynamic-jpql-for-onetomany-mapping%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown






























active

oldest

votes













active

oldest

votes









active

oldest

votes






active

oldest

votes















draft saved

draft discarded
















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid


  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.





Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


Please pay close attention to the following guidance:


  • Please be sure to answer the question. Provide details and share your research!

But avoid


  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53247281%2fhow-create-dynamic-jpql-for-onetomany-mapping%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







這個網誌中的熱門文章

How to read a connectionString WITH PROVIDER in .NET Core?

Node.js Script on GitHub Pages or Amazon S3

Museum of Modern and Contemporary Art of Trento and Rovereto