Ambiguous getter for Field… Room persistence library

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野性不改
野性不改 2021-01-14 00:11

I have the following Entity

public class User {
    @PrimaryKey
    private final long id;

    private String _id;
    private String userName;
    private          


        
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6条回答
  • 2021-01-14 00:45

    Return types for getters should be the same as the attribute data type, if you have attribute of data type int, When I found out it fixed my problem.

    Good luck.

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  • 2021-01-14 00:50

    You need to have setter and getter for each private field else you should make them public, another reason that may cause this error is having two getters or setters for a field.

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  • 2021-01-14 00:58

    For Room :

    In my case

    public String getpBSalesTotal() {
        return pBSalesTotal;
    }
    
    public void setpBSalesTotal(String pBSalesTotal) {
        this.pBSalesTotal = pBSalesTotal;
    }
    

    is the previous POJO class that i want as a table in my database.

    I have just changed small "" p "" to capital ""P"" and that solved my error

    . Like below

    public String getPBSalesTotal() {
        return pBSalesTotal;
    }
    
    public void setPBSalesTotal(String pBSalesTotal) {
        this.pBSalesTotal = pBSalesTotal;
    }
    

    to generate this type of

    POJO form JSON

    you can use this LINK. It worked for Room.

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  • 2021-01-14 01:00

    If this happens again, I would highly suggest you to autogenerate the getter and/or the setter with the help from Android Studio.

    This way you won't risk using time on this issue again.

    To see how, please check this SO-answer

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  • 2021-01-14 01:04

    Me also face the same issue. While I remove the

    "_" underscore symbol, from "_id"

    then works fine.

    public class User {
        @PrimaryKey
        private final long id;
    
        private String myid;
        private String userName;
        private String email;
    }
    

    It works for me and I hope it work for others. Thank You.

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  • 2021-01-14 01:12

    As per documentation you need to declare getter for every field.

    I can see that you have not declared your class with @Entity annotation. Also make sure you are using latest version of library as it is still in development you need to expat some ground breaking changes.

    See below example it is working fine for me with below api version of Room.

    api 'android.arch.persistence.room:runtime:1.0.0-alpha8'
    

    Or you can use "alpha9" as well. Hope this will solve your problem.

    @Entity (tableName = "user")
    public class User {
    
    @PrimaryKey
    private int id;
    
    private String _id;
    
    @ColumnInfo(name = "user_name")
    private String userName;
    
    @NonNull
    private String passwrod;
    
    public User(String userName, @NonNull String passwrod) {
        this.userName = userName;
        this.passwrod = passwrod;
    }
    
    @Ignore
    public User() {
    }
    
    public int getId() {
        return id;
    }
    
    public void setId(int id) {
        this.id = id;
    }
    
    public String getUserName() {
        return userName;
    }
    
    public void setUserName(String userName) {
        this.userName = userName;
    }
    
    public String getPasswrod() {
        return passwrod;
    }
    
    public void setPasswrod(String passwrod) {
        this.passwrod = passwrod;
    }
    
    public String get_id() {
        return _id;
    }
    
    public void set_id(String _id) {
        this._id = _id;
    }
    

    }

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