# javax.xml.bind.helpers

***

1. **Creating a JAXBContext instance:**

   ```java
   JAXBContext context = JAXBContext.newInstance(MyClass.class);
   ```
2. **Creating a Marshaller instance:**

   ```java
   Marshaller marshaller = context.createMarshaller();
   ```
3. **Setting Marshaller properties:**

   ```java
   marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
   ```
4. **Marshalling an object to XML:**

   ```java
   marshaller.marshal(myObject, new File("myFile.xml"));
   ```
5. **Creating an Unmarshaller instance:**

   ```java
   Unmarshaller unmarshaller = context.createUnmarshaller();
   ```
6. **Setting Unmarshaller properties:**

   ```java
   unmarshaller.setProperty(Unmarshaller.JAXB_VALIDATION_MODE, ValidatorMode.LAX);
   ```
7. **Unmarshalling XML to an object:**

   ```java
   MyClass myObject = (MyClass) unmarshaller.unmarshal(new File("myFile.xml"));
   ```
8. **Creating a JAXBElement instance:**

   ```java
   JAXBElement<MyClass> jaxbElement = new JAXBElement<>(new QName("myNamespace", "myElement"), MyClass.class, myObject);
   ```
9. **Getting the value of a JAXBElement instance:**

   ```java
   MyClass myObject = jaxbElement.getValue();
   ```
10. **Creating an XMLStreamReader from a JAXBElement instance:**

```java
XMLStreamReader xmlStreamReader = jaxbElement.createReader();
```

11. **Creating an XMLStreamWriter from a JAXBElement instance:**

```java
XMLStreamWriter xmlStreamWriter = jaxbElement.createWriter();
```

12. **Creating a DatatypeConverter instance:**

```java
DatatypeConverter datatypeConverter = DatatypeConverter.getInstance();
```

13. **Converting a string to a date:**

```java
Date date = datatypeConverter.parseDate("2020-01-01");
```

14. **Converting a date to a string:**

```java
String dateString = datatypeConverter.printDate(date);
```

15. **Converting a string to a time:**

```java
Time time = datatypeConverter.parseTime("12:00:00");
```

16. **Converting a time to a string:**

```java
String timeString = datatypeConverter.printTime(time);
```

17. **Converting a string to a date and time:**

```java
DateTime dateTime = datatypeConverter.parseDateTime("2020-01-01T12:00:00");
```

18. **Converting a date and time to a string:**

```java
String dateTimeString = datatypeConverter.printDateTime(dateTime);
```

19. **Converting a string to a duration:**

```java
Duration duration = datatypeConverter.parseDuration("P1Y2M3DT4H5M6S");
```

20. **Converting a duration to a string:**

```java
String durationString = datatypeConverter.printDuration(duration);
```

21. **Converting a string to a base64 binary:**

```java
byte[] binary = datatypeConverter.parseBase64Binary("SGVsbG8gV29ybGQ=");
```

22. **Converting a base64 binary to a string:**

```java
String binaryString = datatypeConverter.printBase64Binary(binary);
```

23. **Converting a string to a hex binary:**

```java
byte[] binary = datatypeConverter.parseHexBinary("48656C6C6F");
```

24. **Converting a hex binary to a string:**

```java
String binaryString = datatypeConverter.printHexBinary(binary);
```

25. **Creating a ValidationEventCollector instance:**

```java
ValidationEventCollector eventCollector = new ValidationEventCollector();
```

26. **Registering the ValidationEventCollector with a Marshaller:**

```java
marshaller.setEventHandler(eventCollector);
```

27. **Getting validation events from the ValidationEventCollector:**

```java
List<ValidationEvent> validationEvents = eventCollector.getValidationEvents();
```

28. **Creating a ValidationEventHandler instance:**

```java
ValidationEventHandler eventHandler = new MyValidationEventHandler();
```

29. **Registering the ValidationEventHandler with a Marshaller:**

```java
marshaller.setEventHandler(eventHandler);
```

30. **Implementing the handleEvent method of the ValidationEventHandler:**

```java
void handleEvent(ValidationEvent event) {}
```

31. **Creating a PropertyChangeSupport instance:**

```java
PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);
```

32. **Adding a PropertyChangeListener to the PropertyChangeSupport:**

```java
propertyChangeSupport.addPropertyChangeListener(listener);
```

33. **Removing a PropertyChangeListener from the PropertyChangeSupport:**

```java
propertyChangeSupport.removePropertyChangeListener(listener);
```

34. **Firing a property change event:**

```java
propertyChangeSupport.firePropertyChange("propertyName", oldValue, newValue);
```

35. **Creating a JAXBIntrospector instance:**

```java
JAXBIntrospector introspector = JAXBIntrospector.newInstance(MyClass.class);
```

36. **Getting the bean class of a JAXBIntrospector instance:**

```java
Class<MyClass> beanClass = (Class<MyClass>) introspector.getBeanClass();
```

37. **Getting the schema location of a JAXBIntrospector instance:**

```java
String schemaLocation = introspector.getSchemaLocation();
```

38. **Getting the root element of a JAXBIntrospector instance:**

```java
JAXBElement rootElement = (JAXBElement) introspector.getElement(beanClass, null);
```

39. **Getting the property info of a JAXBIntrospector instance:**

```java
PropertyInfo propertyInfo = introspector.getPropertyInfo(beanClass, "propertyName");
```

40. **Getting the value of a property from an object using a JAXBIntrospector instance:**

```java
Object propertyValue = introspector.getValue(myObject, propertyInfo);
```

41. **Setting the value of a property on an object using a JAXBIntrospector instance:**

```java
introspector.setValue(myObject, propertyInfo, propertyValue);
```

42. **Creating a JAXBMarshallable instance:**

```java
public class MyJAXBMarshallable implements JAXBMarshallable {
}
```

43. **Implementing the marshal method of the JAXBMarshallable interface:**

```java
public void marshal(XMLStreamWriter xmlStreamWriter) throws XMLStreamException {
}
```

44. **Creating a JAXBUnmarshallerHandler instance:**

```java
public class MyJAXBUnmarshallerHandler implements JAXBUnmarshallerHandler {
}
```

45. **Implementing the handleUnmarshallEvent method of the JAXBUnmarshallerHandler interface:**

```java
public void handleUnmarshallEvent(UnmarshallEvent event) throws XMLStreamException {
}
```

46. **Creating a JAXBElementHandler instance:**

```java
public class MyJAXBElementHandler implements JAXBElementHandler {
}
```

47. **Implementing the getJAXBElement method of the JAXBElementHandler interface:**

```java
public JAXBElement getJAXBElement() {
}
```

48. **Creating a JAXBMarshallableHandler instance:**

```java
public class MyJAXBMarshallableHandler implements JAXBMarshallableHandler {
}
```

49. **Implementing the marshal method of the JAXBMarshallableHandler interface:**

```java
public void marshal(XMLStreamWriter xmlStreamWriter, Object xmlRootObject) throws XMLStreamException {
}
```

50. **Creating a BindingProvider instance:**

```java
BindingProvider bindingProvider = (BindingProvider) myObject;

```