hibernate: How to unproxy a entity class without retrieving all field that have not retrieved yet?
From the answer under this question, we know that we can use following code to unproxy and get the real entity class:
public static <T> T initializeAndUnproxy(T entity) {
if (entity == null) {
throw new
NullPointerException("Entity passed for initialization is null");
}
Hibernate.initialize(entity);
if (entity instanceof HibernateProxy) {
entity = (T) ((HibernateProxy) entity).getHibernateLazyInitializer()
.getImplementation();
}
return entity;
}
However, I am afraid that using this method will make the program send sql query to database to retrieve all field that have not retrieved yet, leading to worse performance of my program. Is there any way to get around this but still get the unproxy entity class?
java hibernate
add a comment |
From the answer under this question, we know that we can use following code to unproxy and get the real entity class:
public static <T> T initializeAndUnproxy(T entity) {
if (entity == null) {
throw new
NullPointerException("Entity passed for initialization is null");
}
Hibernate.initialize(entity);
if (entity instanceof HibernateProxy) {
entity = (T) ((HibernateProxy) entity).getHibernateLazyInitializer()
.getImplementation();
}
return entity;
}
However, I am afraid that using this method will make the program send sql query to database to retrieve all field that have not retrieved yet, leading to worse performance of my program. Is there any way to get around this but still get the unproxy entity class?
java hibernate
Looks like an XY question: meta.stackexchange.com/questions/66377/what-is-the-xy-problem
– Selaron
Nov 20 '18 at 10:10
Why do you want to unwrap that proxy, what's the problem you actually want to solve? BTW: you are right, Hibernet will send SQL queries if the Proxy has not been initialized before.
– Selaron
Nov 20 '18 at 10:11
add a comment |
From the answer under this question, we know that we can use following code to unproxy and get the real entity class:
public static <T> T initializeAndUnproxy(T entity) {
if (entity == null) {
throw new
NullPointerException("Entity passed for initialization is null");
}
Hibernate.initialize(entity);
if (entity instanceof HibernateProxy) {
entity = (T) ((HibernateProxy) entity).getHibernateLazyInitializer()
.getImplementation();
}
return entity;
}
However, I am afraid that using this method will make the program send sql query to database to retrieve all field that have not retrieved yet, leading to worse performance of my program. Is there any way to get around this but still get the unproxy entity class?
java hibernate
From the answer under this question, we know that we can use following code to unproxy and get the real entity class:
public static <T> T initializeAndUnproxy(T entity) {
if (entity == null) {
throw new
NullPointerException("Entity passed for initialization is null");
}
Hibernate.initialize(entity);
if (entity instanceof HibernateProxy) {
entity = (T) ((HibernateProxy) entity).getHibernateLazyInitializer()
.getImplementation();
}
return entity;
}
However, I am afraid that using this method will make the program send sql query to database to retrieve all field that have not retrieved yet, leading to worse performance of my program. Is there any way to get around this but still get the unproxy entity class?
java hibernate
java hibernate
asked Nov 20 '18 at 9:12
guoguo
3,88372149
3,88372149
Looks like an XY question: meta.stackexchange.com/questions/66377/what-is-the-xy-problem
– Selaron
Nov 20 '18 at 10:10
Why do you want to unwrap that proxy, what's the problem you actually want to solve? BTW: you are right, Hibernet will send SQL queries if the Proxy has not been initialized before.
– Selaron
Nov 20 '18 at 10:11
add a comment |
Looks like an XY question: meta.stackexchange.com/questions/66377/what-is-the-xy-problem
– Selaron
Nov 20 '18 at 10:10
Why do you want to unwrap that proxy, what's the problem you actually want to solve? BTW: you are right, Hibernet will send SQL queries if the Proxy has not been initialized before.
– Selaron
Nov 20 '18 at 10:11
Looks like an XY question: meta.stackexchange.com/questions/66377/what-is-the-xy-problem
– Selaron
Nov 20 '18 at 10:10
Looks like an XY question: meta.stackexchange.com/questions/66377/what-is-the-xy-problem
– Selaron
Nov 20 '18 at 10:10
Why do you want to unwrap that proxy, what's the problem you actually want to solve? BTW: you are right, Hibernet will send SQL queries if the Proxy has not been initialized before.
– Selaron
Nov 20 '18 at 10:11
Why do you want to unwrap that proxy, what's the problem you actually want to solve? BTW: you are right, Hibernet will send SQL queries if the Proxy has not been initialized before.
– Selaron
Nov 20 '18 at 10:11
add a comment |
0
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',
autoActivateHeartbeat: false,
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
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53389646%2fhibernate-how-to-unproxy-a-entity-class-without-retrieving-all-field-that-have%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
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.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53389646%2fhibernate-how-to-unproxy-a-entity-class-without-retrieving-all-field-that-have%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
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
Looks like an XY question: meta.stackexchange.com/questions/66377/what-is-the-xy-problem
– Selaron
Nov 20 '18 at 10:10
Why do you want to unwrap that proxy, what's the problem you actually want to solve? BTW: you are right, Hibernet will send SQL queries if the Proxy has not been initialized before.
– Selaron
Nov 20 '18 at 10:11