org.apache.jackrabbit.webdav.ordering
Class Position

java.lang.Object
  org.apache.jackrabbit.webdav.ordering.Position

All Implemented Interfaces:

OrderingConstants, XmlSerializable

public class Position
extends Object
implements OrderingConstants, XmlSerializable

Position encapsulates the position in ordering information contained in a Webdav request. This includes both the Position header and the position Xml element present in the request body of an ORDERPATCH request.

See Also:

OrderingConstants.HEADER_POSITION, OrderingConstants.XML_POSITION, OrderPatch

Field Summary

Fields inherited from interface org.apache.jackrabbit.webdav.ordering.OrderingConstants

HEADER_ORDERING_TYPE, HEADER_POSITION, NAMESPACE, ORDERING_TYPE, ORDERING_TYPE_CUSTOM, ORDERING_TYPE_UNORDERED, SUPPORTED_LIVE_PROPERTY_SET, SUPPORTED_METHOD_SET, XML_AFTER, XML_BEFORE, XML_FIRST, XML_LAST, XML_ORDER_MEMBER, XML_ORDERING_TYPE, XML_ORDERPATCH, XML_POSITION, XML_SEGMENT

Constructor Summary

Position(String type)
Create a new Position object with the specified type.

Position(String type, String segment)
Create a new Position object with the specified type and segment.

Method Summary

static Position	createFromXml(Element positionElement) Create a new Position object from the specified position element.
String	getSegment() Returns the segment used to create this Position object or null if no segment is present with the type.
String	getType() Return the type of this Position object, which may be any of the following valid types: first, last, after, before
Element	toXml(Document document) Returns the xml representation of the implementing object as Element.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Position

public Position(String type)

Create a new Position object with the specified type. Since any type except for first and last must be combined with a segment, only the mentioned types are valid arguments.

Parameters:

type - first or last

Throws:

IllegalArgumentException - if the given type is other than OrderingConstants.XML_FIRST or OrderingConstants.XML_LAST.

Position

public Position(String type,
                String segment)

Create a new Position object with the specified type and segment.

Parameters:

type -

segment -

Throws:

IllegalArgumentException - if the specified type and segment do not form a valid pair.

Method Detail

getType

public String getType()

Return the type of this Position object, which may be any of the following valid types: first, last, after, before

Returns:

type

getSegment

public String getSegment()

Returns the segment used to create this Position object or null if no segment is present with the type.

Returns:

segment or null

See Also:

getType()

toXml

public Element toXml(Document document)

Description copied from interface: XmlSerializable

Returns the xml representation of the implementing object as Element. The given Document is used as factory and represents the owner document of the returned DOM element.

Specified by:

toXml in interface XmlSerializable

Parameters:

document -

Returns:

a w3c element representing this object

See Also:

XmlSerializable.toXml(Document)

createFromXml

public static Position createFromXml(Element positionElement)

Create a new Position object from the specified position element. The element must fulfill the following structure:

 <!ELEMENT position (first | last | before | after) >
 <!ELEMENT segment (#PCDATA) >
 <!ELEMENT first EMPTY >
 <!ELEMENT last EMPTY >
 <!ELEMENT before segment >
 <!ELEMENT after segment >
 

Parameters:

positionElement - Xml element defining the position.

Throws:

IllegalArgumentException - if the given Xml element is not valid.