Type converters

ReActiveAndroid allows you to specify the following data types as the field type:

boolean, Boolean
int, Integer
short, Short
long, Long
float, Float
double, Double
byte, Byte
byte[]
String

If you want to use your own data type as a field type (for example, File or Enum), then you need to serialize this field into one of the supported types. Below is the serializer code for the File type:

public final class FileSerializer extends TypeSerializer<File, String> {

    @NonNull
    public String serialize(@NonNull File file) {
        return file.getAbsolutePath();
    }

    @NonNull
    public File deserialize(@NonNull String filePath) {
        return new File(filePath);
    }

}

Note: ReActiveAndroid already has ready serializers for classes File, UUID, BigDecimal, Calendar, java.util.Date and java.sql.Date.

After creating a serializer, you need to add it to the database configuration:

DatabaseConfig appDatabaseConfig = new DatabaseConfig.Builder(AppDatabase.class)
                .addTypeSerializers(FileSerializer.class)
                .build();