Interface XMLEvent

All Superinterfaces:: XMLStreamConstants

All Known Subinterfaces:: Attribute, Characters, Comment, DTD, EndDocument, EndElement, EntityDeclaration, EntityReference, Namespace, NotationDeclaration, ProcessingInstruction, StartDocument, StartElement

public interface XMLEvent
extends XMLStreamConstants

This is the base event interface for handling markup events. Events are value objects that are used to communicate the XML 1.0 InfoSet to the Application. Events may be cached and referenced after the parse has completed.

Since:: 1.6
See Also:: XMLEventReader, Characters, ProcessingInstruction, StartElement, EndElement, StartDocument, EndDocument, EntityReference, EntityDeclaration, NotationDeclaration

Field Summary

Fields declared in interface javax.xml.stream.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

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Characters`	`asCharacters()`	Returns this event as Characters, may result in a class cast exception if this event is not Characters.
`EndElement`	`asEndElement()`	Returns this event as an end element event, may result in a class cast exception if this event is not a end element.
`StartElement`	`asStartElement()`	Returns this event as a start element event, may result in a class cast exception if this event is not a start element.
`int`	`getEventType()`	Returns an integer code for this event.
`Location`	`getLocation()`	Return the location of this event.
`QName`	`getSchemaType()`	This method is provided for implementations to provide optional type information about the associated event.
`boolean`	`isAttribute()`	A utility function to check if this event is an Attribute.
`boolean`	`isCharacters()`	A utility function to check if this event is Characters.
`boolean`	`isEndDocument()`	A utility function to check if this event is an EndDocument.
`boolean`	`isEndElement()`	A utility function to check if this event is a EndElement.
`boolean`	`isEntityReference()`	A utility function to check if this event is an EntityReference.
`boolean`	`isNamespace()`	A utility function to check if this event is a Namespace.
`boolean`	`isProcessingInstruction()`	A utility function to check if this event is a ProcessingInstruction.
`boolean`	`isStartDocument()`	A utility function to check if this event is a StartDocument.
`boolean`	`isStartElement()`	A utility function to check if this event is a StartElement.
`void`	`writeAsEncodedUnicode(Writer writer)`	This method will write the XMLEvent as per the XML 1.0 specification as Unicode characters.

Method Detail

getEventType

int getEventType()

Returns an integer code for this event.

See Also:: XMLStreamConstants.START_ELEMENT, XMLStreamConstants.END_ELEMENT, XMLStreamConstants.CHARACTERS, XMLStreamConstants.ATTRIBUTE, XMLStreamConstants.NAMESPACE, XMLStreamConstants.PROCESSING_INSTRUCTION, XMLStreamConstants.COMMENT, XMLStreamConstants.START_DOCUMENT, XMLStreamConstants.END_DOCUMENT, XMLStreamConstants.DTD

getLocation

Location getLocation()

Return the location of this event. The Location returned from this method is non-volatile and will retain its information.

See Also:: Location

isStartElement

boolean isStartElement()

A utility function to check if this event is a StartElement.

See Also:: StartElement

isAttribute

boolean isAttribute()

A utility function to check if this event is an Attribute.

See Also:: Attribute

isNamespace

boolean isNamespace()

A utility function to check if this event is a Namespace.

See Also:: Namespace

isEndElement

boolean isEndElement()

A utility function to check if this event is a EndElement.

See Also:: EndElement

isEntityReference

boolean isEntityReference()

A utility function to check if this event is an EntityReference.

See Also:: EntityReference

isProcessingInstruction

boolean isProcessingInstruction()

A utility function to check if this event is a ProcessingInstruction.

See Also:: ProcessingInstruction

isCharacters

boolean isCharacters()

A utility function to check if this event is Characters.

See Also:: Characters

isStartDocument

boolean isStartDocument()

A utility function to check if this event is a StartDocument.

See Also:: StartDocument

isEndDocument

boolean isEndDocument()

A utility function to check if this event is an EndDocument.

See Also:: EndDocument

asStartElement

StartElement asStartElement()

Returns this event as a start element event, may result in a class cast exception if this event is not a start element.

asEndElement

EndElement asEndElement()

Returns this event as an end element event, may result in a class cast exception if this event is not a end element.

asCharacters

Characters asCharacters()

Returns this event as Characters, may result in a class cast exception if this event is not Characters.

getSchemaType

QName getSchemaType()

This method is provided for implementations to provide optional type information about the associated event. It is optional and will return null if no information is available.

writeAsEncodedUnicode

void writeAsEncodedUnicode(Writer writer)
                    throws XMLStreamException

This method will write the XMLEvent as per the XML 1.0 specification as Unicode characters. No indentation or whitespace should be outputted. Any user defined event type SHALL have this method called when being written to on an output stream. Built in Event types MUST implement this method, but implementations MAY choose not call these methods for optimizations reasons when writing out built in Events to an output stream. The output generated MUST be equivalent in terms of the infoset expressed.

Parameters:: writer - The writer that will output the data
Throws:: XMLStreamException - if there is a fatal error writing the event