# Interface StartDocument

All Superinterfaces:
  `XMLEvent, XMLStreamConstants`

public interface StartDocument extends XMLEvent
An interface for the start document event

Since:
  1.6

- ## Field Summary

  ### Fields declared in interface XMLStreamConstants

  `ATTRIBUTE, CDATA, CHARACTERS, COMMENT, DTD, END_DOCUMENT, END_ELEMENT, ENTITY_DECLARATION, ENTITY_REFERENCE, NAMESPACE, NOTATION_DECLARATION, PROCESSING_INSTRUCTION, SPACE, START_DOCUMENT, START_ELEMENT`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `boolean`
  `encodingSet()`
  Returns true if CharacterEncodingScheme is set in the encoding declaration of the document
  `String`
  `getCharacterEncodingScheme()`
  Returns the encoding style of the XML data
  `String`
  `getSystemId()`
  Returns the system ID of the XML data
  `String`
  `getVersion()`
  Returns the version of XML of this XML stream
  `boolean`
  `isStandalone()`
  Returns if this XML is standalone
  `boolean`
  `standaloneSet()`
  Returns true if the standalone attribute is set in the encoding declaration of the document.

  ### Methods declared in interface XMLEvent

  `asCharacters, asEndElement, asStartElement, getEventType, getLocation, getSchemaType, isAttribute, isCharacters, isEndDocument, isEndElement, isEntityReference, isNamespace, isProcessingInstruction, isStartDocument, isStartElement, writeAsEncodedUnicode`

- ## Method Details

  - ### getSystemId

    String getSystemId()
    Returns the system ID of the XML data
    Returns:
      the system ID, defaults to ""

  - ### getCharacterEncodingScheme

    String getCharacterEncodingScheme()
    Returns the encoding style of the XML data
    Returns:
      the character encoding, defaults to "UTF-8"

  - ### encodingSet

    boolean encodingSet()
    Returns true if CharacterEncodingScheme is set in the encoding declaration of the document
    Returns:
      true if `CharacterEncodingScheme` is set, false otherwise

  - ### isStandalone

    boolean isStandalone()
    Returns if this XML is standalone
    Returns:
      the standalone state of XML, defaults to "no"

  - ### standaloneSet

    boolean standaloneSet()
    Returns true if the standalone attribute is set in the encoding declaration of the document.
    Returns:
      true if the standalone attribute is set, false otherwise

  - ### getVersion

    String getVersion()
    Returns the version of XML of this XML stream
    Returns:
      the version of XML, defaults to "1.0"