Is it possible to update only one field to Realm?












0














Android Studio 3.2, Java 1.7, Realm 4.1.0



Here my pojo:



public class ImageFormats extends RealmObject {
private ImageSource reference;
private ImageSource average;
}


public class ImageSource extends RealmObject {
private String url;
private int width;
private int height;
}


Here how I update reference



public void cascadeUpdate(Realm realm, ImageFormats that) {
if (!EqualsUtil.areEqual(this.average, that.average)) {
setAverage(that.average == null ? null : realm.copyToRealm(that.average));
}
}


Nice it work fine.



But I wan't to update WHOLE object ImageSource because may change only one property, e.g. url



And I try to update to Realm only field that was changed.
So I try this:



public void cascadeUpdate(Realm realm, ImageSource that) {
if (!EqualsUtil.areEqual(this.url, that.url)) {
setUrl(that.url == null ? null : realm.copyToRealm(that.url)); // error here
}
}


But I get compile error:



error: no suitable method found for copyToRealm(String)


So, how I can update to Realm only changed field?










share|improve this question
























  • Get the object from the Realm and use the object's setter instead of copyToRealm
    – EpicPandaForce
    Nov 23 at 10:55










  • So this code is correct? - public void cascadeUpdate(Realm realm, ImageSource that) { if (!EqualsUtil.areEqual(this.url, that.url)) { setUrl(that.url); } }
    – Alexei
    Nov 23 at 11:52












  • Actually now that you mention it, the latest version should support ImportFlag on copyToRealmOrUpdate which should be able to do what you need.
    – EpicPandaForce
    Nov 23 at 13:10










  • (The latest version is 5.8.0, so I guess the right way for you IS to fetch the object and set it if it's not equal, so yeah)
    – EpicPandaForce
    Nov 23 at 16:29
















0














Android Studio 3.2, Java 1.7, Realm 4.1.0



Here my pojo:



public class ImageFormats extends RealmObject {
private ImageSource reference;
private ImageSource average;
}


public class ImageSource extends RealmObject {
private String url;
private int width;
private int height;
}


Here how I update reference



public void cascadeUpdate(Realm realm, ImageFormats that) {
if (!EqualsUtil.areEqual(this.average, that.average)) {
setAverage(that.average == null ? null : realm.copyToRealm(that.average));
}
}


Nice it work fine.



But I wan't to update WHOLE object ImageSource because may change only one property, e.g. url



And I try to update to Realm only field that was changed.
So I try this:



public void cascadeUpdate(Realm realm, ImageSource that) {
if (!EqualsUtil.areEqual(this.url, that.url)) {
setUrl(that.url == null ? null : realm.copyToRealm(that.url)); // error here
}
}


But I get compile error:



error: no suitable method found for copyToRealm(String)


So, how I can update to Realm only changed field?










share|improve this question
























  • Get the object from the Realm and use the object's setter instead of copyToRealm
    – EpicPandaForce
    Nov 23 at 10:55










  • So this code is correct? - public void cascadeUpdate(Realm realm, ImageSource that) { if (!EqualsUtil.areEqual(this.url, that.url)) { setUrl(that.url); } }
    – Alexei
    Nov 23 at 11:52












  • Actually now that you mention it, the latest version should support ImportFlag on copyToRealmOrUpdate which should be able to do what you need.
    – EpicPandaForce
    Nov 23 at 13:10










  • (The latest version is 5.8.0, so I guess the right way for you IS to fetch the object and set it if it's not equal, so yeah)
    – EpicPandaForce
    Nov 23 at 16:29














0












0








0







Android Studio 3.2, Java 1.7, Realm 4.1.0



Here my pojo:



public class ImageFormats extends RealmObject {
private ImageSource reference;
private ImageSource average;
}


public class ImageSource extends RealmObject {
private String url;
private int width;
private int height;
}


Here how I update reference



public void cascadeUpdate(Realm realm, ImageFormats that) {
if (!EqualsUtil.areEqual(this.average, that.average)) {
setAverage(that.average == null ? null : realm.copyToRealm(that.average));
}
}


Nice it work fine.



But I wan't to update WHOLE object ImageSource because may change only one property, e.g. url



And I try to update to Realm only field that was changed.
So I try this:



public void cascadeUpdate(Realm realm, ImageSource that) {
if (!EqualsUtil.areEqual(this.url, that.url)) {
setUrl(that.url == null ? null : realm.copyToRealm(that.url)); // error here
}
}


But I get compile error:



error: no suitable method found for copyToRealm(String)


So, how I can update to Realm only changed field?










share|improve this question















Android Studio 3.2, Java 1.7, Realm 4.1.0



Here my pojo:



public class ImageFormats extends RealmObject {
private ImageSource reference;
private ImageSource average;
}


public class ImageSource extends RealmObject {
private String url;
private int width;
private int height;
}


Here how I update reference



public void cascadeUpdate(Realm realm, ImageFormats that) {
if (!EqualsUtil.areEqual(this.average, that.average)) {
setAverage(that.average == null ? null : realm.copyToRealm(that.average));
}
}


Nice it work fine.



But I wan't to update WHOLE object ImageSource because may change only one property, e.g. url



And I try to update to Realm only field that was changed.
So I try this:



public void cascadeUpdate(Realm realm, ImageSource that) {
if (!EqualsUtil.areEqual(this.url, that.url)) {
setUrl(that.url == null ? null : realm.copyToRealm(that.url)); // error here
}
}


But I get compile error:



error: no suitable method found for copyToRealm(String)


So, how I can update to Realm only changed field?







realm






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 23 at 9:08

























asked Nov 23 at 9:01









Alexei

1,10711024




1,10711024












  • Get the object from the Realm and use the object's setter instead of copyToRealm
    – EpicPandaForce
    Nov 23 at 10:55










  • So this code is correct? - public void cascadeUpdate(Realm realm, ImageSource that) { if (!EqualsUtil.areEqual(this.url, that.url)) { setUrl(that.url); } }
    – Alexei
    Nov 23 at 11:52












  • Actually now that you mention it, the latest version should support ImportFlag on copyToRealmOrUpdate which should be able to do what you need.
    – EpicPandaForce
    Nov 23 at 13:10










  • (The latest version is 5.8.0, so I guess the right way for you IS to fetch the object and set it if it's not equal, so yeah)
    – EpicPandaForce
    Nov 23 at 16:29


















  • Get the object from the Realm and use the object's setter instead of copyToRealm
    – EpicPandaForce
    Nov 23 at 10:55










  • So this code is correct? - public void cascadeUpdate(Realm realm, ImageSource that) { if (!EqualsUtil.areEqual(this.url, that.url)) { setUrl(that.url); } }
    – Alexei
    Nov 23 at 11:52












  • Actually now that you mention it, the latest version should support ImportFlag on copyToRealmOrUpdate which should be able to do what you need.
    – EpicPandaForce
    Nov 23 at 13:10










  • (The latest version is 5.8.0, so I guess the right way for you IS to fetch the object and set it if it's not equal, so yeah)
    – EpicPandaForce
    Nov 23 at 16:29
















Get the object from the Realm and use the object's setter instead of copyToRealm
– EpicPandaForce
Nov 23 at 10:55




Get the object from the Realm and use the object's setter instead of copyToRealm
– EpicPandaForce
Nov 23 at 10:55












So this code is correct? - public void cascadeUpdate(Realm realm, ImageSource that) { if (!EqualsUtil.areEqual(this.url, that.url)) { setUrl(that.url); } }
– Alexei
Nov 23 at 11:52






So this code is correct? - public void cascadeUpdate(Realm realm, ImageSource that) { if (!EqualsUtil.areEqual(this.url, that.url)) { setUrl(that.url); } }
– Alexei
Nov 23 at 11:52














Actually now that you mention it, the latest version should support ImportFlag on copyToRealmOrUpdate which should be able to do what you need.
– EpicPandaForce
Nov 23 at 13:10




Actually now that you mention it, the latest version should support ImportFlag on copyToRealmOrUpdate which should be able to do what you need.
– EpicPandaForce
Nov 23 at 13:10












(The latest version is 5.8.0, so I guess the right way for you IS to fetch the object and set it if it's not equal, so yeah)
– EpicPandaForce
Nov 23 at 16:29




(The latest version is 5.8.0, so I guess the right way for you IS to fetch the object and set it if it's not equal, so yeah)
– EpicPandaForce
Nov 23 at 16:29

















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
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53443465%2fis-it-possible-to-update-only-one-field-to-realm%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%2f53443465%2fis-it-possible-to-update-only-one-field-to-realm%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







Popular posts from this blog

A CLEAN and SIMPLE way to add appendices to Table of Contents and bookmarks

Calculate evaluation metrics using cross_val_predict sklearn

Insert data from modal to MySQL (multiple modal on website)