TypeConverter

@Target([AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER]) class TypeConverter
androidx.room.TypeConverter

Marks a method as a type converter. A class can have as many @TypeConverter methods as it needs.

Each converter method should receive 1 parameter and have non-void return type.

 // example converter for java.util.Date public static class Converters { @TypeConverter public Date fromTimestamp(Long value) { return value == null ? null : new Date(value); } @TypeConverter public Long dateToTimestamp(Date date) { if (date == null) { return null; } else { return date.getTime(); } } } 

Summary

Public constructors

Marks a method as a type converter.

Public constructors

<init>

TypeConverter()

Marks a method as a type converter. A class can have as many @TypeConverter methods as it needs.

Each converter method should receive 1 parameter and have non-void return type.

 // example converter for java.util.Date public static class Converters { @TypeConverter public Date fromTimestamp(Long value) { return value == null ? null : new Date(value); } @TypeConverter public Long dateToTimestamp(Date date) { if (date == null) { return null; } else { return date.getTime(); } } } 

See Also