我正在与 TheMovieDatabase API 交互，发现 here .
我正在尝试提取流行度字段，该字段的对象类型为Number。
Room 需要一个用于该对象的类型转换器，我已将其集成在下面:
public class NumberConverter {
@TypeConverter
public static Number toNumber(Integer integer){
return integer == null ? null : toNumber(integer); }
@TypeConverter
public static Integer toInt(Number number){
return number == null ? null : number.intValue();
}
}
当我加载应用程序时，我立即收到引用此行的 StackOverFlow 错误:
return number == null ? null : number.intValue();
注意:我还使用 Executors 来异步处理读写:
public class AppExecutors{
//for Singleton Instantiation
private static final Object LOCK = new Object();
private static AppExecutors sInstance;
private final Executor diskIO;
private final Executor mainThread;
private final Executor networkIO;
public AppExecutors(Executor diskIO, Executor mainThread, Executor networkIO) {
this.diskIO = diskIO;
this.mainThread = mainThread;
this.networkIO = networkIO;
}
public static AppExecutors getsInstance(){
if (sInstance == null){
synchronized (LOCK){
sInstance = new AppExecutors(Executors.newSingleThreadExecutor(),
Executors.newFixedThreadPool(3),
new MainThreadExecutor());
}
}
return sInstance;
};
public Executor diskIO(){return diskIO;};
public Executor mainThread(){return mainThread;}
public Executor netWorkIO(){return networkIO;}
private static class MainThreadExecutor implements Executor{
private android.os.Handler mainThreadHandler = new android.os.Handler(Looper.getMainLooper());
@Override
public void execute(@NonNull Runnable runnable) {
mainThreadHandler.post(runnable);
}
}
}
编辑:引用TheMovieDatabase文档
最佳答案
你能在你的代码中检查一下这个函数吗:
@TypeConverter
公共(public)静态数字toNumber(整数整数){
返回整数 == null ？ null : toNumber(整数); }
这里发生了无限的递归，也许这就是您收到StackOverflowError的原因。
关于java - 将类型转换器与 Room 一起使用时出现 StackOverFlow 错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/51341668/