Package net.sf.saxon.tree.wrapper

Class RebasedNode

java.lang.Object

net.sf.saxon.tree.wrapper.AbstractVirtualNode

net.sf.saxon.tree.wrapper.RebasedNode

All Implemented Interfaces:

Source, SourceLocator, ActiveSource, GroundedValue, Item, NodeInfo, Sequence, Location, VirtualNode, WrappingFunction, Locator

public class RebasedNode
extends AbstractVirtualNode
implements WrappingFunction

A RebasedNode is a view of a node, in a virtual tree that maps the base URI and/or system ID to new values

Field Summary

Fields inherited from class net.sf.saxon.tree.wrapper.AbstractVirtualNode

docWrapper, node, parent

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RebasedNode()
protected	RebasedNode(NodeInfo node, RebasedNode parent)	This constructor is protected: nodes should be created using the makeWrapper factory method

Method Summary

Modifier and Type	Method	Description
int	compareOrder(NodeInfo other)	Determine the relative position of this node and another node, in document order.
boolean	equals(Object other)	Determine whether this is the same node as another node.
String	getBaseURI()	Get the Base URI for the node, that is, the URI used for resolving a relative URI contained in the node.
NodeInfo	getParent()	Get the NodeInfo object representing the parent of this node
String	getSystemId()	Get the System ID for the node.
int	hashCode()	The hashCode() method obeys the contract for hashCode(): that is, if two objects are equal (represent the same node) then they must have the same hashCode()
AxisIterator	iterateAxis(int axisNumber)	Return an iteration over the nodes reached by the given axis from this node
static RebasedNode	makeWrapper(NodeInfo node, RebasedDocument docWrapper, RebasedNode parent)	Factory method to wrap a node with a wrapper that implements the Saxon NodeInfo interface.
RebasedNode	makeWrapper(NodeInfo node, VirtualNode parent)	Factory method to wrap a node with a VirtualNode

Methods inherited from class net.sf.saxon.tree.wrapper.AbstractVirtualNode

atomize, generateId, getAllNamespaces, getAttributeValue, getColumnNumber, getDeclaredNamespaces, getDisplayName, getFingerprint, getLineNumber, getLocalPart, getNamespaceUri, getNodeKind, getPrefix, getRealNode, getRoot, getSchemaType, getTreeInfo, getUnderlyingNode, getUnicodeStringValue, hasChildNodes, hasFingerprint, isId, isIdref, isNilled, iterateAxis, saveLocation, setSystemId

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.om.GroundedValue

asIterable, concatenate, containsNode, effectiveBooleanValue, materialize

Methods inherited from interface net.sf.saxon.om.Item

getLength, getStringValue, head, itemAt, iterate, reduce, subsequence

Methods inherited from interface net.sf.saxon.om.NodeInfo

asActiveSource, attributes, children, children, copy, deliver, getAttributeValue, getConfiguration, getGenre, getPublicId, getURI, isSameNodeInfo, isStreamed, toShortString

Methods inherited from interface net.sf.saxon.om.Sequence

makeRepeatable

Methods inherited from interface javax.xml.transform.Source

isEmpty

Constructor Details

RebasedNode

protected RebasedNode()

RebasedNode

protected RebasedNode(NodeInfo node,
 RebasedNode parent)

This constructor is protected: nodes should be created using the makeWrapper factory method

Parameters:

node - The node to be wrapped

parent - The RebasedNode that wraps the parent of this node

Method Details

makeWrapper

public static RebasedNode makeWrapper(NodeInfo node,
 RebasedDocument docWrapper,
 RebasedNode parent)

Factory method to wrap a node with a wrapper that implements the Saxon NodeInfo interface.

Parameters:

node - The underlying node

docWrapper - The wrapper for the document node (must be supplied)

parent - The wrapper for the parent of the node (null if unknown)

Returns:

The new wrapper for the supplied node

makeWrapper

public RebasedNode makeWrapper(NodeInfo node,
 VirtualNode parent)

Factory method to wrap a node with a VirtualNode

Specified by:

makeWrapper in interface WrappingFunction

Parameters:

node - The underlying node

parent - The wrapper for the parent of the node (null if unknown)

Returns:

The new wrapper for the supplied node

getBaseURI

public String getBaseURI()

Get the Base URI for the node, that is, the URI used for resolving a relative URI contained in the node.

Specified by:

getBaseURI in interface NodeInfo

Overrides:

getBaseURI in class AbstractVirtualNode

Returns:

the base URI of the node. This may be null if the base URI is unknown, including the case where the node has no parent.

getSystemId

public String getSystemId()

Get the System ID for the node.

Specified by:

getSystemId in interface Location

Specified by:

getSystemId in interface Locator

Specified by:

getSystemId in interface NodeInfo

Specified by:

getSystemId in interface Source

Specified by:

getSystemId in interface SourceLocator

Overrides:

getSystemId in class AbstractVirtualNode

Returns:

the System Identifier of the entity in the source document containing the node, or null if not known. Note this is not the same as the base URI: the base URI can be modified by xml:base, but the system ID cannot.

equals

public boolean equals(Object other)

Determine whether this is the same node as another node.

Note: a.isSameNode(b) if and only if generateId(a)==generateId(b)

Specified by:

equals in interface NodeInfo

Overrides:

equals in class AbstractVirtualNode

Parameters:

other - the node to be compared with this node

Returns:

true if this Node object and the supplied Node object represent the same node in the tree.

hashCode

public int hashCode()

The hashCode() method obeys the contract for hashCode(): that is, if two objects are equal (represent the same node) then they must have the same hashCode()

Specified by:

hashCode in interface NodeInfo

Overrides:

hashCode in class AbstractVirtualNode

compareOrder

public int compareOrder(NodeInfo other)

Determine the relative position of this node and another node, in document order. The other node will always be in the same document.

Specified by:

compareOrder in interface NodeInfo

Overrides:

compareOrder in class AbstractVirtualNode

Parameters:

other - The other node, whose position is to be compared with this node

Returns:

-1 if this node precedes the other node, +1 if it follows the other node, or 0 if they are the same node. (In this case, isSameNode() will always return true, and the two nodes will produce the same result for generateId())

getParent

public NodeInfo getParent()

Get the NodeInfo object representing the parent of this node

Specified by:

getParent in interface NodeInfo

Returns:

the parent of this node; null if this node has no parent

iterateAxis

public AxisIterator iterateAxis(int axisNumber)

Return an iteration over the nodes reached by the given axis from this node

Specified by:

iterateAxis in interface NodeInfo

Parameters:

axisNumber - the axis to be used

Returns:

a SequenceIterator that scans the nodes reached by the axis in turn.

See Also:

• AxisInfo