Package net.sf.saxon.tree.linked

Class DocumentImpl

java.lang.Object

net.sf.saxon.tree.linked.NodeImpl

net.sf.saxon.tree.linked.ParentNodeImpl

net.sf.saxon.tree.linked.DocumentImpl

All Implemented Interfaces:

Source, SourceLocator, ActiveSource, GroundedValue, Item, MutableDocumentInfo, MutableNodeInfo, NodeInfo, Sequence, TreeInfo, Location, SteppingNode, SiblingCountingNode, Locator

public final class DocumentImpl
extends ParentNodeImpl
implements TreeInfo, MutableDocumentInfo

A node in the XML parse tree representing the Document itself (or equivalently, the root node of the Document).

A DocumentImpl object may either represent a real document node, or it may represent an imaginary container for a parentless element.

Field Summary

Fields inherited from class net.sf.saxon.tree.linked.NodeImpl

NODE_LETTER

Constructor Summary

Constructors

Constructor	Description
DocumentImpl()	Create a DocumentImpl

Method Summary

Modifier and Type	Method	Description
void	addNilledElement(ElementImpl element)	Add a nilled element.
void	copy(Receiver out, int copyOptions, Location locationId)	Copy this node to a given outputter
void	deIndex(NodeImpl node)	Remove a node from any indexes when it is detached from the tree
void	generateId(StringBuilder buffer)	Get a character string that uniquely identifies this node
String	getBaseURI()	Get the base URI of this root node.
Configuration	getConfiguration()	Get the configuration previously set using setConfiguration
ElementImpl	getDocumentElement()	Get the root (outermost) element.
long	getDocumentNumber()	Get the unique document number
Durability	getDurability()	Get the durability of nodes in the tree.
int	getLineNumber()	Get the line number of this root node.
NamePool	getNamePool()	Get the name pool used for the names in this document
final NodeImpl	getNextSibling()	Get next sibling - always null
final int	getNodeKind()	Return the type of node.
DocumentImpl	getPhysicalRoot()	Get the physical root of the tree.
final NodeImpl	getPreviousSibling()	Get previous sibling - always null
NodeInfo	getRoot()	Get the root node
NodeInfo	getRootNode()	Get the NodeInfo object representing the document node at the root of the tree
SchemaType	getSchemaType()	Get the type annotation
SpaceStrippingRule	getSpaceStrippingRule()	Get details of space stripping action that was applied to this document during construction.
String	getSystemId()	Get the system id of this root node
String[]	getUnparsedEntity(String name)	Get the unparsed entity with a given name
Iterator<String>	getUnparsedEntityNames()	Get the list of unparsed entities defined in this document
Object	getUserData(String key)	Get user data held in the document node.
void	graftLocationMap(DocumentImpl original)	Copy the system ID and line number map from another document (used when grafting a simplified stylesheet)
boolean	isImaginary()	Ask whether this is an imaginary document node
boolean	isMutable()	Ask whether the tree is mutable.
boolean	isTopWithinEntity(ElementImpl element)
boolean	isTyped()	Ask whether the document contains any nodes whose type annotation is anything other than UNTYPED
void	markTopWithinEntity(ElementImpl element)
Builder	newBuilder()	Get a Builder suitable for building nodes that can be attached to this document.
void	replaceStringValue(UnicodeString stringValue)	Replace the string-value of this node
void	resetIndexes()	This method is called before performing a batch of updates; it allows all cached data that might be invalidated by such updates to be cleared
NodeInfo	selectID(String id, boolean getParent)	Get the element with a given ID.
void	setBaseURI(String uri)	Set the base URI of this document node
void	setConfiguration(Configuration config)	Set the Configuration that contains this document
void	setDocumentElement(ElementImpl e)	Set the top-level element of the document (variously called the root element or the document element).
void	setImaginary(boolean imaginary)	Set whether this is an imaginary document node
void	setLineNumbering()	Set line numbering on
void	setMutable(boolean mutable)	Say whether the tree is mutable.
void	setSpaceStrippingRule(SpaceStrippingRule rule)	Set details of space stripping action that was applied to this document during construction.
void	setSystemId(String uri)	Set the system id (base URI) of this node
void	setUnparsedEntity(String name, String uri, String publicId)	Set an unparsed entity URI associated with this document.
void	setUserData(String key, Object value)	Set user data on the document node.

Methods inherited from class net.sf.saxon.tree.linked.ParentNodeImpl

addChild, compact, getFirstChild, getLastChild, getNthChild, getNumberOfChildren, getRawSequenceNumber, getSequenceNumber, getUnicodeStringValue, hasChildNodes, insertChildren, insertChildrenAt, iterateChildren, removeChild, replaceChildrenAt, setChildren, setRawSequenceNumber

Methods inherited from class net.sf.saxon.tree.linked.NodeImpl

addAttribute, addNamespace, atomize, attributes, compareOrder, delete, effectiveBooleanValue, equals, getAllNamespaces, getAttributeValue, getColumnNumber, getDeclaredNamespaces, getDisplayName, getFingerprint, getLocalPart, getNamespaceUri, getNextInDocument, getNodeName, getParent, getPrefix, getPreviousInDocument, getRawParent, getSiblingPosition, getSuccessorElement, getTreeInfo, hasFingerprint, hashCode, head, insertSiblings, isDeleted, iterateAxis, iterateAxis, removeAttribute, removeTypeAnnotation, rename, replace, saveLocation, setAttributes, setRawParent, setSiblingPosition, setTypeAnnotation

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, materialize

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

getLength, getStringValue, itemAt, iterate, reduce, subsequence

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

addNamespace, removeNamespace

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

asActiveSource, children, children, deliver, getAttributeValue, getGenre, getPublicId, getURI, isId, isIdref, isNilled, isSameNodeInfo, isStreamed, toShortString

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

makeRepeatable

Methods inherited from interface javax.xml.transform.Source

isEmpty

Constructor Details

DocumentImpl

public DocumentImpl()

Create a DocumentImpl

Method Details

getRootNode

public NodeInfo getRootNode()

Get the NodeInfo object representing the document node at the root of the tree

Specified by:

getRootNode in interface TreeInfo

Returns:

the document node

setConfiguration

public void setConfiguration(Configuration config)

Set the Configuration that contains this document

Parameters:

config - the Saxon configuration

getConfiguration

public Configuration getConfiguration()

Get the configuration previously set using setConfiguration

Specified by:

getConfiguration in interface NodeInfo

Specified by:

getConfiguration in interface TreeInfo

Overrides:

getConfiguration in class NodeImpl

Returns:

the Saxon configuration

isMutable

public boolean isMutable()

Ask whether the tree is mutable. This is true only if setMutable(boolean) has been called supplying the value true

Specified by:

isMutable in interface TreeInfo

Returns:

true if and only if the tree has been marked as mutable

getDurability

public Durability getDurability()

Get the durability of nodes in the tree. This affects how they are handled in a memo function cache, to optimize memory and garbage collection. By default, all nodes are considered durable unless otherwise specified

Specified by:

getDurability in interface TreeInfo

Returns:

the durability property of this node tree

setMutable

public void setMutable(boolean mutable)

Say whether the tree is mutable.

Parameters:

mutable - true if and only if the tree is to be marked as mutable

getNamePool

public NamePool getNamePool()

Get the name pool used for the names in this document

Overrides:

getNamePool in class NodeImpl

Returns:

the namePool for the configuration owning this node

newBuilder

public Builder newBuilder()

Get a Builder suitable for building nodes that can be attached to this document.

Specified by:

newBuilder in interface MutableNodeInfo

Overrides:

newBuilder in class NodeImpl

Returns:

a new TreeBuilder

setImaginary

public void setImaginary(boolean imaginary)

Set whether this is an imaginary document node

Parameters:

imaginary - if true, this is an imaginary node - the tree is really rooted at the topmost element

isImaginary

public boolean isImaginary()

Ask whether this is an imaginary document node

Returns:

true if this is an imaginary node - the tree is really rooted at the topmost element

isTyped

public boolean isTyped()

Ask whether the document contains any nodes whose type annotation is anything other than UNTYPED

Specified by:

isTyped in interface TreeInfo

Returns:

true if the document contains elements whose type is other than UNTYPED

getDocumentNumber

public long getDocumentNumber()

Get the unique document number

Specified by:

getDocumentNumber in interface TreeInfo

Returns:

the document number

setDocumentElement

public void setDocumentElement(ElementImpl e)

Set the top-level element of the document (variously called the root element or the document element). Note that a DocumentImpl may represent the root of a result tree fragment, in which case there is no document element.

Parameters:

e - the top-level element

graftLocationMap

public void graftLocationMap(DocumentImpl original)

Copy the system ID and line number map from another document (used when grafting a simplified stylesheet)

Parameters:

original - the document whose system ID and line number maps are to be grafted onto this tree

setSystemId

public void setSystemId(String uri)

Set the system id (base URI) of this node

Specified by:

setSystemId in interface NodeInfo

Specified by:

setSystemId in interface Source

Overrides:

setSystemId in class NodeImpl

getSystemId

public String getSystemId()

Get the system id of this root 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 NodeImpl

Returns:

the System Identifier of the entity in the source document containing the node, or null if not known or not applicable.

setBaseURI

public void setBaseURI(String uri)

Set the base URI of this document node

Parameters:

uri - the new base URI

getBaseURI

public String getBaseURI()

Get the base URI of this root node.

Specified by:

getBaseURI in interface NodeInfo

Overrides:

getBaseURI in class NodeImpl

Returns:

the base URI

setLineNumbering

public void setLineNumbering()

Set line numbering on

addNilledElement

public void addNilledElement(ElementImpl element)

Add a nilled element. Nilled elements are unusual, so we avoid allocating a boolean in the element node; instead we keep a list of nilled elements at the document level

Parameters:

element - a nilled element

markTopWithinEntity

public void markTopWithinEntity(ElementImpl element)

isTopWithinEntity

public boolean isTopWithinEntity(ElementImpl element)

getLineNumber

public int getLineNumber()

Get the line number of this root node.

Specified by:

getLineNumber in interface Location

Specified by:

getLineNumber in interface Locator

Specified by:

getLineNumber in interface NodeInfo

Specified by:

getLineNumber in interface SourceLocator

Overrides:

getLineNumber in class NodeImpl

Returns:

0 always

getNodeKind

public final int getNodeKind()

Return the type of node.

Specified by:

getNodeKind in interface NodeInfo

Returns:

Type.DOCUMENT (always)

See Also:

• Type

getNextSibling

public final NodeImpl getNextSibling()

Get next sibling - always null

Specified by:

getNextSibling in interface SteppingNode

Overrides:

getNextSibling in class NodeImpl

Returns:

null

getPreviousSibling

public final NodeImpl getPreviousSibling()

Get previous sibling - always null

Specified by:

getPreviousSibling in interface SteppingNode

Overrides:

getPreviousSibling in class NodeImpl

Returns:

null

getDocumentElement

public ElementImpl getDocumentElement()

Get the root (outermost) element.

Returns:

the Element node for the outermost element of the document. May return null if the document node contains no element node.

getRoot

public NodeInfo getRoot()

Get the root node

Specified by:

getRoot in interface NodeInfo

Overrides:

getRoot in class NodeImpl

Returns:

the NodeInfo representing the root of this tree

getPhysicalRoot

public DocumentImpl getPhysicalRoot()

Get the physical root of the tree. This may be an imaginary document node: this method should be used only when control information held at the physical root is required

Overrides:

getPhysicalRoot in class NodeImpl

Returns:

the document node, which may be imaginary

generateId

public void generateId(StringBuilder buffer)

Get a character string that uniquely identifies this node

Specified by:

generateId in interface NodeInfo

Overrides:

generateId in class NodeImpl

Parameters:

buffer - a buffer into which will be placed a string based on the document number

deIndex

public void deIndex(NodeImpl node)

Remove a node from any indexes when it is detached from the tree

Parameters:

node - the node to be removed from all indexes

selectID

public NodeInfo selectID(String id,
 boolean getParent)

Get the element with a given ID.

Specified by:

selectID in interface TreeInfo

Parameters:

id - The unique ID of the required element, previously registered using registerID()

getParent - true if the requirement is for the parent of the node with the given ID, not the node itself.

Returns:

The NodeInfo for the given ID if one has been registered, otherwise null.

setUnparsedEntity

public void setUnparsedEntity(String name,
 String uri,
 String publicId)

Set an unparsed entity URI associated with this document. For system use only, while building the document.

Parameters:

name - the entity name

uri - the system identifier of the unparsed entity

publicId - the public identifier of the unparsed entity

getUnparsedEntityNames

public Iterator<String> getUnparsedEntityNames()

Get the list of unparsed entities defined in this document

Specified by:

getUnparsedEntityNames in interface TreeInfo

Returns:

an Iterator, whose items are of type String, containing the names of all unparsed entities defined in this document. If there are no unparsed entities or if the information is not available then an empty iterator is returned

getUnparsedEntity

public String[] getUnparsedEntity(String name)

Get the unparsed entity with a given name

Specified by:

getUnparsedEntity in interface TreeInfo

Parameters:

name - the name of the entity

Returns:

if the entity exists, return an array of two Strings, the first holding the system ID of the entity, the second holding the public ID if there is one, or null if not. If the entity does not exist, return null.

getSchemaType

public SchemaType getSchemaType()

Get the type annotation

Specified by:

getSchemaType in interface NodeInfo

Overrides:

getSchemaType in class NodeImpl

Returns:

the type annotation of the base node

copy

public void copy(Receiver out,
 int copyOptions,
 Location locationId)
          throws XPathException

Copy this node to a given outputter

Specified by:

copy in interface NodeInfo

Parameters:

out - the Receiver to which the node should be copied. It is the caller's responsibility to ensure that this Receiver is open before the method is called (or that it is self-opening), and that it is closed after use.

copyOptions - a selection of the options defined in CopyOptions

locationId - If non-null, identifies the location of the instruction that requested this copy. If null, indicates that the location information is not available

Throws:

XPathException - if any downstream error occurs

replaceStringValue

public void replaceStringValue(UnicodeString stringValue)

Replace the string-value of this node

Specified by:

replaceStringValue in interface MutableNodeInfo

Parameters:

stringValue - the new string value

resetIndexes

public void resetIndexes()

This method is called before performing a batch of updates; it allows all cached data that might be invalidated by such updates to be cleared

Specified by:

resetIndexes in interface MutableDocumentInfo

setSpaceStrippingRule

public void setSpaceStrippingRule(SpaceStrippingRule rule)

Set details of space stripping action that was applied to this document during construction. This ensures that space stripping is not applied twice to the same document.

Specified by:

setSpaceStrippingRule in interface TreeInfo

Parameters:

rule - details of the space stripping rules that have been applied to this document during its construction.

Since:

9.9

getSpaceStrippingRule

public SpaceStrippingRule getSpaceStrippingRule()

Get details of space stripping action that was applied to this document during construction. This ensures that space stripping is not applied twice to the same document.

Specified by:

getSpaceStrippingRule in interface TreeInfo

Returns:

details of the space stripping rules that have been applied to this document during its construction. By default, returns NoElementsSpaceStrippingRule, indicating that no space stripping has been applied

Since:

9.9

setUserData

public void setUserData(String key,
 Object value)

Set user data on the document node. The user data can be retrieved subsequently using getUserData(java.lang.String)

Specified by:

setUserData in interface TreeInfo

Parameters:

key - A string giving the name of the property to be set. Clients are responsible for choosing a key that is likely to be unique. Must not be null. Keys used internally by Saxon are prefixed "saxon:".

value - The value to be set for the property. May be null, which effectively removes the existing value for the property.

getUserData

public Object getUserData(String key)

Get user data held in the document node. This retrieves properties previously set using setUserData(java.lang.String, java.lang.Object)

Specified by:

getUserData in interface TreeInfo

Parameters:

key - A string giving the name of the property to be retrieved.

Returns:

the value of the property, or null if the property has not been defined.