Mixing
Restraints on custom objects supported by Google FireStore?
I am using Google FireStore for the backend of my android application. The app has a custom User class. As specified by the documentation, this custom class has a public constructor without arguments (and one with arguments) as well as a getter for each variable.
One of these variables is a LinkedList<String>. I am able to upload User objects without issue to FireStore, but retrieving them via
User u = document.toObject(User.class);
causes the following error, detected in logcat:
java.lang.IllegalArgumentException: field ase.liongps.utils.User.searches has type java.util.LinkedList, got java.util.ArrayList
I am wondering if Google FireStore perhaps mutates objects when it stores them in the cloud, or if something about how I tried to create a local User object caused this issue. This bug is currently crashing my app, so any advice or input is most welcome!
java
android firebase google-cloud-firestore asked Nov 21 '18 at 16:38
Chris TChris T
1868
|
show 2 more comments
I am using Google FireStore for the backend of my android application. The app has a custom User class. As specified by the documentation, this custom class has a public constructor without arguments (and one with arguments) as well as a getter for each variable.
One of these variables is a LinkedList<String>. I am able to upload User objects without issue to FireStore, but retrieving them via
User u = document.toObject(User.class);
causes the following error, detected in logcat:
java.lang.IllegalArgumentException: field ase.liongps.utils.User.searches has type java.util.LinkedList, got java.util.ArrayList
I am wondering if Google FireStore perhaps mutates objects when it stores them in the cloud, or if something about how I tried to create a local User object caused this issue. This bug is currently crashing my app, so any advice or input is most welcome!
java
android firebase google-cloud-firestore asked Nov 21 '18 at 16:38
Chris TChris T
1868
1
Have you tried to get the data as anArrayListinstead ofLinkedList?
– Alex Mamo
Nov 21 '18 at 16:41
I'm considering resorting to this, but it breaks some of our logic that uses ArrayList-specific methods.
– Chris T
Nov 21 '18 at 16:44
1
Get it first as anArrayListand order after that. Does it work this way?
– Alex Mamo
Nov 21 '18 at 16:45
That is a possible option - I'll try it, thank you @AlexMamo - I'm still curious why this issue occurs though.
– Chris T
Nov 21 '18 at 16:47
Ok, tell me if it works this way.
– Alex Mamo
Nov 21 '18 at 16:48
|
show 2 more comments
I am using Google FireStore for the backend of my android application. The app has a custom User class. As specified by the documentation, this custom class has a public constructor without arguments (and one with arguments) as well as a getter for each variable.
One of these variables is a LinkedList<String>. I am able to upload User objects without issue to FireStore, but retrieving them via
User u = document.toObject(User.class);
causes the following error, detected in logcat:
java.lang.IllegalArgumentException: field ase.liongps.utils.User.searches has type java.util.LinkedList, got java.util.ArrayList
I am wondering if Google FireStore perhaps mutates objects when it stores them in the cloud, or if something about how I tried to create a local User object caused this issue. This bug is currently crashing my app, so any advice or input is most welcome!
java
android firebase google-cloud-firestore asked Nov 21 '18 at 16:38
Chris TChris T
1868
I am using Google FireStore for the backend of my android application. The app has a custom User class. As specified by the documentation, this custom class has a public constructor without arguments (and one with arguments) as well as a getter for each variable.
One of these variables is a LinkedList<String>. I am able to upload User objects without issue to FireStore, but retrieving them via
User u = document.toObject(User.class);
causes the following error, detected in logcat:
java.lang.IllegalArgumentException: field ase.liongps.utils.User.searches has type java.util.LinkedList, got java.util.ArrayList
I am wondering if Google FireStore perhaps mutates objects when it stores them in the cloud, or if something about how I tried to create a local User object caused this issue. This bug is currently crashing my app, so any advice or input is most welcome!
java
android firebase google-cloud-firestore java
android firebase google-cloud-firestore asked Nov 21 '18 at 16:38
Chris TChris T
1868
asked Nov 21 '18 at 16:38
Chris TChris T
1868
asked Nov 21 '18 at 16:38
Chris TChris T
1868
asked Nov 21 '18 at 16:38
Chris TChris T
1868
asked Nov 21 '18 at 16:38
Chris TChris T
1868
1868
1
Have you tried to get the data as anArrayListinstead ofLinkedList?
– Alex Mamo
Nov 21 '18 at 16:41
I'm considering resorting to this, but it breaks some of our logic that uses ArrayList-specific methods.
– Chris T
Nov 21 '18 at 16:44
1
Get it first as anArrayListand order after that. Does it work this way?
– Alex Mamo
Nov 21 '18 at 16:45
That is a possible option - I'll try it, thank you @AlexMamo - I'm still curious why this issue occurs though.
– Chris T
Nov 21 '18 at 16:47
Ok, tell me if it works this way.
– Alex Mamo
Nov 21 '18 at 16:48
|
show 2 more comments
1
Have you tried to get the data as anArrayListinstead ofLinkedList?
– Alex Mamo
Nov 21 '18 at 16:41
I'm considering resorting to this, but it breaks some of our logic that uses ArrayList-specific methods.
– Chris T
Nov 21 '18 at 16:44
1
Get it first as anArrayListand order after that. Does it work this way?
– Alex Mamo
Nov 21 '18 at 16:45
That is a possible option - I'll try it, thank you @AlexMamo - I'm still curious why this issue occurs though.
– Chris T
Nov 21 '18 at 16:47
Ok, tell me if it works this way.
– Alex Mamo
Nov 21 '18 at 16:48
1
1
Have you tried to get the data as an
ArrayList instead of LinkedList?– Alex Mamo
Nov 21 '18 at 16:41
Have you tried to get the data as an
ArrayList instead of LinkedList?– Alex Mamo
Nov 21 '18 at 16:41
I'm considering resorting to this, but it breaks some of our logic that uses ArrayList-specific methods.
– Chris T
Nov 21 '18 at 16:44
I'm considering resorting to this, but it breaks some of our logic that uses ArrayList-specific methods.
– Chris T
Nov 21 '18 at 16:44
1
1
Get it first as an
ArrayList and order after that. Does it work this way?– Alex Mamo
Nov 21 '18 at 16:45
Get it first as an
ArrayList and order after that. Does it work this way?– Alex Mamo
Nov 21 '18 at 16:45
That is a possible option - I'll try it, thank you @AlexMamo - I'm still curious why this issue occurs though.
– Chris T
Nov 21 '18 at 16:47
That is a possible option - I'll try it, thank you @AlexMamo - I'm still curious why this issue occurs though.
– Chris T
Nov 21 '18 at 16:47
Ok, tell me if it works this way.
– Alex Mamo
Nov 21 '18 at 16:48
Ok, tell me if it works this way.
– Alex Mamo
Nov 21 '18 at 16:48
|
show 2 more comments
1 Answer
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You are getting the following error:
java.lang.IllegalArgumentException: field ase.liongps.utils.User.searches has type java.util.LinkedList, got java.util.ArrayList
Because of incompatible types of objects, LinkedList and ArrayList. To solve this, change the data type of your object from LinkedList to ArrayList and order the items client side.
answered Nov 21 '18 at 17:07
Alex MamoAlex Mamo
43.4k82860
If you think that my answer helped you, please also consider accepting it. I'd appreciate it. Thanks!
– Alex Mamo
Nov 22 '18 at 8:07
add a comment |
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You are getting the following error:
java.lang.IllegalArgumentException: field ase.liongps.utils.User.searches has type java.util.LinkedList, got java.util.ArrayList
Because of incompatible types of objects, LinkedList and ArrayList. To solve this, change the data type of your object from LinkedList to ArrayList and order the items client side.
answered Nov 21 '18 at 17:07
Alex MamoAlex Mamo
43.4k82860
If you think that my answer helped you, please also consider accepting it. I'd appreciate it. Thanks!
– Alex Mamo
Nov 22 '18 at 8:07
add a comment |
You are getting the following error:
java.lang.IllegalArgumentException: field ase.liongps.utils.User.searches has type java.util.LinkedList, got java.util.ArrayList
Because of incompatible types of objects, LinkedList and ArrayList. To solve this, change the data type of your object from LinkedList to ArrayList and order the items client side.
answered Nov 21 '18 at 17:07
Alex MamoAlex Mamo
43.4k82860
If you think that my answer helped you, please also consider accepting it. I'd appreciate it. Thanks!
– Alex Mamo
Nov 22 '18 at 8:07
add a comment |
You are getting the following error:
java.lang.IllegalArgumentException: field ase.liongps.utils.User.searches has type java.util.LinkedList, got java.util.ArrayList
Because of incompatible types of objects, LinkedList and ArrayList. To solve this, change the data type of your object from LinkedList to ArrayList and order the items client side.
answered Nov 21 '18 at 17:07
Alex MamoAlex Mamo
43.4k82860
You are getting the following error:
java.lang.IllegalArgumentException: field ase.liongps.utils.User.searches has type java.util.LinkedList, got java.util.ArrayList
Because of incompatible types of objects, LinkedList and ArrayList. To solve this, change the data type of your object from LinkedList to ArrayList and order the items client side.
answered Nov 21 '18 at 17:07
Alex MamoAlex Mamo
43.4k82860
answered Nov 21 '18 at 17:07
Alex MamoAlex Mamo
43.4k82860
answered Nov 21 '18 at 17:07
Alex MamoAlex Mamo
43.4k82860
answered Nov 21 '18 at 17:07
Alex MamoAlex Mamo
43.4k82860
43.4k82860
If you think that my answer helped you, please also consider accepting it. I'd appreciate it. Thanks!
– Alex Mamo
Nov 22 '18 at 8:07
add a comment |
If you think that my answer helped you, please also consider accepting it. I'd appreciate it. Thanks!
– Alex Mamo
Nov 22 '18 at 8:07
If you think that my answer helped you, please also consider accepting it. I'd appreciate it. Thanks!
– Alex Mamo
Nov 22 '18 at 8:07
If you think that my answer helped you, please also consider accepting it. I'd appreciate it. Thanks!
– Alex Mamo
Nov 22 '18 at 8:07
add a comment |
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1
Have you tried to get the data as an
ArrayListinstead ofLinkedList?– Alex Mamo
Nov 21 '18 at 16:41
I'm considering resorting to this, but it breaks some of our logic that uses ArrayList-specific methods.
– Chris T
Nov 21 '18 at 16:44
1
Get it first as an
ArrayListand order after that. Does it work this way?– Alex Mamo
Nov 21 '18 at 16:45
That is a possible option - I'll try it, thank you @AlexMamo - I'm still curious why this issue occurs though.
– Chris T
Nov 21 '18 at 16:47
Ok, tell me if it works this way.
– Alex Mamo
Nov 21 '18 at 16:48