net.sf.saxon.tree.linked

Class NodeImpl

java.lang.Object

net.sf.saxon.tree.linked.NodeImpl

All Implemented Interfaces:

java.lang.Iterable<NodeInfo>, javax.xml.transform.Source, javax.xml.transform.SourceLocator, Location, GroundedValue<NodeInfo>, Item<NodeInfo>, MutableNodeInfo, NodeInfo, Sequence<NodeInfo>, SteppingNode<NodeImpl>, SiblingCountingNode, org.xml.sax.Locator

Direct Known Subclasses:

AttributeImpl, CommentImpl, DocumentImpl, ElementImpl, ProcInstImpl, TextImpl

public abstract class NodeImpl
extends java.lang.Object
implements MutableNodeInfo, SteppingNode<NodeImpl>, SiblingCountingNode, javax.xml.transform.SourceLocator

A node in the "linked" tree representing any kind of node except a namespace node. Specific node kinds are represented by concrete subclasses.

Author:

Michael H. Kay

Field Summary

Fields

Modifier and Type	Field and Description
static char[]	NODE_LETTER Chararacteristic letters to identify each type of node, indexed using the node type values.

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

IS_DTD_TYPE, IS_NILLED

Constructor Summary

Constructors

Constructor and Description
NodeImpl()

Method Summary

Modifier and Type	Method and Description
void	addAttribute(NodeName name, SimpleType attType, java.lang.CharSequence value, int properties) Add an attribute to this element node.
void	addNamespace(NamespaceBinding nscode, boolean unused) Add a namespace binding (that is, a namespace node) to this element.
AtomicSequence	atomize() Get the typed value.
int	compareOrder(NodeInfo other) Determine the relative position of this node and another node, in document order.
void	delete() Delete this node (that is, detach it from its parent)
boolean	effectiveBooleanValue() Get the effective boolean value of this sequence
boolean	equals(NodeInfo other) Determine whether this is the same node as another node
void	generateId(FastStringBuffer buffer) Get a character string that uniquely identifies this node
java.lang.String	getAttributeValue(java.lang.String uri, java.lang.String localName) Find the value of a given attribute of this node.
java.lang.String	getBaseURI() Get the base URI for the node.
int	getColumnNumber() Get the column number of the node.
Configuration	getConfiguration() Get the configuration
NamespaceBinding[]	getDeclaredNamespaces(NamespaceBinding[] buffer) Get all namespace undeclarations and undeclarations defined on this element.
java.lang.String	getDisplayName() Get the display name of this node.
int	getFingerprint() Get the fingerprint of the node.
NodeImpl	getFirstChild() Get first child - default implementation used for leaf nodes
NodeInfo	getLastChild() Get last child - default implementation used for leaf nodes
int	getLineNumber() Get the line number of the node within its source document entity
java.lang.String	getLocalPart() Get the local name of this node.
NamePool	getNamePool() Get the NamePool
NodeImpl	getNextInDocument(NodeImpl anchor) Get the next node in document order
NodeImpl	getNextSibling() Get next sibling node
NodeName	getNodeName() Get the name of the node.
NodeImpl	getParent() Find the parent node of this node.
DocumentImpl	getPhysicalRoot() Get the physical root of the tree.
java.lang.String	getPrefix() Get the prefix part of the name of this node.
NodeImpl	getPreviousInDocument() Get the previous node in document order
NodeImpl	getPreviousSibling() Get the previous sibling of the node
protected net.sf.saxon.tree.linked.ParentNodeImpl	getRawParent() Get the raw value of the parent pointer.
NodeInfo	getRoot() Get the root node
SchemaType	getSchemaType() Get the type annotation
protected long	getSequenceNumber() Get the node sequence number (in document order).
int	getSiblingPosition() Get the index position of this node among its siblings (starting from 0)
java.lang.CharSequence	getStringValueCS() Get the value of the item as a CharSequence.
NodeImpl	getSuccessorElement(NodeImpl anchor, java.lang.String uri, java.lang.String local) Find the next matching element in document order; that is, the first child element with the required name if there is one; otherwise the next sibling element if there is one; otherwise the next sibling element of the parent, grandparent, etc, up to the anchor element.
java.lang.String	getSystemId() Get the system ID for the node.
TreeInfo	getTreeInfo() Get information about the tree to which this NodeInfo belongs
java.lang.String	getURI() Get the URI part of the name of this node.
boolean	hasChildNodes() Determine whether the node has any children.
boolean	hasFingerprint() Ask whether this NodeInfo implementation holds a fingerprint identifying the name of the node in the NamePool.
NodeImpl	head() To implement Sequence, this method returns the item itself
void	insertChildren(NodeInfo[] source, boolean atStart, boolean inherit) Insert a sequence of nodes as children of this node.
void	insertSiblings(NodeInfo[] source, boolean before, boolean inherit) Insert copies of a sequence of nodes as siblings of this node.
boolean	isDeleted() Test whether this MutableNodeInfo object represents a node that has been deleted.
UnfailingIterator<NodeInfo>	iterate() To implement Sequence, this method returns a singleton iterator that delivers this item in the form of a sequence
AxisIterator	iterateAxis(byte axisNumber) Return an enumeration over the nodes reached by the given axis from this node
AxisIterator	iterateAxis(byte axisNumber, NodeTest nodeTest) Return an enumeration over the nodes reached by the given axis from this node
Builder	newBuilder() Get a Builder suitable for building nodes that can be attached to this document.
void	removeAttribute(NodeInfo attribute) Remove an attribute from this element node
void	removeTypeAnnotation() Remove type information from this node (and its ancestors, recursively).
void	rename(NodeName newNameCode) Rename this node
void	replace(NodeInfo[] replacement, boolean inherit) Replace this node with a given sequence of nodes.
Location	saveLocation() Get an immutable copy of this Location object.
protected void	setRawParent(net.sf.saxon.tree.linked.ParentNodeImpl parent) Set the raw parent pointer
protected void	setSiblingPosition(int index) Set the index position.
void	setSystemId(java.lang.String uri) Set the system ID of this node.
void	setTypeAnnotation(SchemaType type) Set the type annotation on a node.

Methods inherited from class java.lang.Object

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

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

replaceStringValue

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

copy, equals, getGenre, getNodeKind, getPublicId, getStringValue, hashCode, isId, isIdref, isNilled, isSameNodeInfo, isStreamed, toShortString

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

getLength, itemAt, iterator, reduce, subsequence, toGroundedValue

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

asIterable, materialize

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

makeRepeatable

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

NODE_LETTER

public static final char[] NODE_LETTER

Chararacteristic letters to identify each type of node, indexed using the node type values. These are used as the initial letter of the result of generate-id()

Constructor Detail

NodeImpl

public NodeImpl()

Method Detail

head

public NodeImpl head()

To implement Sequence, this method returns the item itself

Specified by:

head in interface GroundedValue<NodeInfo>

Specified by:

head in interface Item<NodeInfo>

Specified by:

head in interface Sequence<NodeInfo>

Returns:

this item

iterate

public UnfailingIterator<NodeInfo> iterate()

To implement Sequence, this method returns a singleton iterator that delivers this item in the form of a sequence

Specified by:

iterate in interface GroundedValue<NodeInfo>

Specified by:

iterate in interface Item<NodeInfo>

Specified by:

iterate in interface Sequence<NodeInfo>

Returns:

a singleton iterator that returns this item

getTreeInfo

public TreeInfo getTreeInfo()

Get information about the tree to which this NodeInfo belongs

Specified by:

getTreeInfo in interface NodeInfo

Returns:

the TreeInfo

Since:

9.7

getStringValueCS

public java.lang.CharSequence getStringValueCS()

Get the value of the item as a CharSequence. This is in some cases more efficient than the version of the method that returns a String.

Specified by:

getStringValueCS in interface GroundedValue<NodeInfo>

Specified by:

getStringValueCS in interface Item<NodeInfo>

Returns:

the string value of the item

See Also:

Item.getStringValue()

getSchemaType

public SchemaType getSchemaType()

Get the type annotation

Specified by:

getSchemaType in interface NodeInfo

Returns:

the type annotation of the base node

getColumnNumber

public int getColumnNumber()

Get the column number of the node. The default implementation returns -1, meaning unknown

Specified by:

getColumnNumber in interface javax.xml.transform.SourceLocator

Specified by:

getColumnNumber in interface Location

Specified by:

getColumnNumber in interface NodeInfo

Specified by:

getColumnNumber in interface org.xml.sax.Locator

Returns:

the column number of the node in its original source document; or -1 if not available. The default implementation returns -1.

getSiblingPosition

public final int getSiblingPosition()

Get the index position of this node among its siblings (starting from 0)

Specified by:

getSiblingPosition in interface SiblingCountingNode

Returns:

0 for the first child, 1 for the second child, etc. Returns -1 for a node that has been deleted.

setSiblingPosition

protected final void setSiblingPosition(int index)

Set the index position. For internal use only

Parameters:

index - the position of the node among its siblings, counting from zero.

atomize

public AtomicSequence atomize()
                       throws XPathException

Get the typed value.

Specified by:

atomize in interface Item<NodeInfo>

Specified by:

atomize in interface NodeInfo

Returns:

the typed value. If requireSingleton is set to true, the result will always be an AtomicValue. In other cases it may be a Value representing a sequence whose items are atomic values.

Throws:

XPathException - if the node has no typed value, for example if it is an element node with element-only content

Since:

8.5

setSystemId

public void setSystemId(java.lang.String uri)

Set the system ID of this node. This method is provided so that a NodeInfo implements the javax.xml.transform.Source interface, allowing a node to be used directly as the Source of a transformation

Specified by:

setSystemId in interface javax.xml.transform.Source

equals

public boolean equals(NodeInfo other)

Determine whether this is the same node as another node

Returns:

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

getNodeName

public NodeName getNodeName()

Get the name of the node. Returns null for an unnamed node

Returns:

the name of the node

hasFingerprint

public boolean hasFingerprint()

Ask whether this NodeInfo implementation holds a fingerprint identifying the name of the node in the NamePool. If the answer is true, then the getFingerprint() method must return the fingerprint of the node. If the answer is false, then the getFingerprint() method should throw an UnsupportedOperationException. In the case of unnamed nodes such as text nodes, the result can be either true (in which case getFingerprint() should return -1) or false (in which case getFingerprint may throw an exception).

Specified by:

hasFingerprint in interface NodeInfo

Returns:

true if the implementation of this node provides fingerprints.

Since:

9.8; previously Saxon relied on using FingerprintedNode as a marker interface.

getFingerprint

public int getFingerprint()

Get the fingerprint of the node. This is used to compare whether two nodes have equivalent names. Return -1 for a node with no name.

Specified by:

getFingerprint in interface NodeInfo

Returns:

an integer fingerprint; two nodes with the same fingerprint have the same expanded QName. For unnamed nodes (text nodes, comments, document nodes, and namespace nodes for the default namespace), returns -1.

generateId

public void generateId(FastStringBuffer buffer)

Get a character string that uniquely identifies this node

Specified by:

generateId in interface NodeInfo

Parameters:

buffer - a buffer which will be updated to hold a string that uniquely identifies this node, across all documents.

getSystemId

public java.lang.String getSystemId()

Get the system ID for the node. Default implementation for child nodes.

Specified by:

getSystemId in interface javax.xml.transform.Source

Specified by:

getSystemId in interface javax.xml.transform.SourceLocator

Specified by:

getSystemId in interface Location

Specified by:

getSystemId in interface NodeInfo

Specified by:

getSystemId in interface org.xml.sax.Locator

Returns:

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

getBaseURI

public java.lang.String getBaseURI()

Get the base URI for the node. Default implementation for child nodes.

Specified by:

getBaseURI in interface NodeInfo

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.

getSequenceNumber

protected long getSequenceNumber()

Get the node sequence number (in document order). Sequence numbers are monotonic but not consecutive. In the current implementation, parent nodes (elements and roots) have a zero least-significant word, while namespaces, attributes, text nodes, comments, and PIs have the top word the same as their owner and the bottom half reflecting their relative position. This is the default implementation for child nodes. For nodes added by XQuery Update, the sequence number is -1L

Returns:

the sequence number if there is one, or -1L otherwise.

compareOrder

public final 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

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())

getConfiguration

public Configuration getConfiguration()

Get the configuration

Specified by:

getConfiguration in interface NodeInfo

Returns:

the Configuration to which the tree belongs. The default implementation invokes getTreeInfo().getConfiguration().

getNamePool

public NamePool getNamePool()

Get the NamePool

getPrefix

public java.lang.String getPrefix()

Get the prefix part of the name of this node. This is the name before the ":" if any.

Specified by:

getPrefix in interface NodeInfo

Returns:

the prefix part of the name. For an unnamed node, return an empty string.

getURI

public java.lang.String getURI()

Get the URI part of the name of this node. This is the URI corresponding to the prefix, or the URI of the default namespace if appropriate.

Specified by:

getURI in interface NodeInfo

Returns:

The URI of the namespace of this node. For the null namespace, return an empty string. For an unnamed node, return the empty string.

getDisplayName

public java.lang.String getDisplayName()

Get the display name of this node. For elements and attributes this is [prefix:]localname. For unnamed nodes, it is an empty string.

Specified by:

getDisplayName in interface NodeInfo

Returns:

The display name of this node. For a node with no name, return an empty string.

getLocalPart

public java.lang.String getLocalPart()

Get the local name of this node.

Specified by:

getLocalPart in interface NodeInfo

Returns:

The local name of this node. For a node with no name, return "",.

getLineNumber

public int getLineNumber()

Get the line number of the node within its source document entity

Specified by:

getLineNumber in interface javax.xml.transform.SourceLocator

Specified by:

getLineNumber in interface Location

Specified by:

getLineNumber in interface NodeInfo

Specified by:

getLineNumber in interface org.xml.sax.Locator

Returns:

the line number of the node in its original source document; or -1 if not available. The default implementation returns -1.

saveLocation

public Location saveLocation()

Get an immutable copy of this Location object. By default Location objects may be mutable, so they should not be saved for later use. The result of this operation holds the same location information, but in an immutable form.

Specified by:

saveLocation in interface Location

getParent

public final NodeImpl getParent()

Find the parent node of this node.

Specified by:

getParent in interface NodeInfo

Specified by:

getParent in interface SteppingNode<NodeImpl>

Returns:

The Node object describing the containing element or root node.

getRawParent

protected final net.sf.saxon.tree.linked.ParentNodeImpl getRawParent()

Get the raw value of the parent pointer. This will usually be the same as the parent node in the XDM model, but in the case of a parentless element it will be a pointer to the "imaginary" document node which is not properly part of the tree.

Returns:

either the real parent of this node, or the "imaginary" parent present in the tree implementation to provide a root object for the tree

setRawParent

protected final void setRawParent(net.sf.saxon.tree.linked.ParentNodeImpl parent)

Set the raw parent pointer

Parameters:

parent - the "raw" parent pointer: either the real parent, or a dummy parent added to ensure that the tree is properly rooted.

getPreviousSibling

public NodeImpl getPreviousSibling()

Get the previous sibling of the node

Specified by:

getPreviousSibling in interface SteppingNode<NodeImpl>

Returns:

The previous sibling node. Returns null if the current node is the first child of its parent.

getNextSibling

public NodeImpl getNextSibling()

Get next sibling node

Specified by:

getNextSibling in interface SteppingNode<NodeImpl>

Returns:

The next sibling node of the required type. Returns null if the current node is the last child of its parent.

getFirstChild

public NodeImpl getFirstChild()

Get first child - default implementation used for leaf nodes

Specified by:

getFirstChild in interface SteppingNode<NodeImpl>

Returns:

null

getLastChild

public NodeInfo getLastChild()

Get last child - default implementation used for leaf nodes

Returns:

null

iterateAxis

public AxisIterator iterateAxis(byte axisNumber)

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

Specified by:

iterateAxis in interface NodeInfo

Parameters:

axisNumber - The axis to be iterated over

Returns:

an AxisIterator that scans the nodes reached by the axis in turn.

See Also:

AxisInfo

iterateAxis

public AxisIterator iterateAxis(byte axisNumber,
                                NodeTest nodeTest)

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

Specified by:

iterateAxis in interface NodeInfo

Parameters:

axisNumber - The axis to be iterated over

nodeTest - A pattern to be matched by the returned nodes

Returns:

an AxisIterator that scans the nodes reached by the axis in turn.

See Also:

AxisInfo

getAttributeValue

public java.lang.String getAttributeValue(java.lang.String uri,
                                          java.lang.String localName)

Find the value of a given attribute of this node.
This method is defined on all nodes to meet XSL requirements, but for nodes other than elements it will always return null.

Specified by:

getAttributeValue in interface NodeInfo

Parameters:

uri - the namespace uri of an attribute

localName - the local name of an attribute

Returns:

the value of the attribute, if it exists, otherwise null

getRoot

public NodeInfo getRoot()

Get the root node

Specified by:

getRoot in interface NodeInfo

Returns:

the NodeInfo representing the logical root of the tree. For this tree implementation the root will either be a document node or an element node.

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

Returns:

the document node, which may be imaginary. In the case of a node that has been detached from the tree by means of a delete() operation, this method returns null.

getNextInDocument

public NodeImpl getNextInDocument(NodeImpl anchor)

Get the next node in document order

Parameters:

anchor - the scan stops when it reaches a node that is not a descendant of the specified anchor node

Returns:

the next node in the document, or null if there is no such node

getSuccessorElement

public NodeImpl getSuccessorElement(NodeImpl anchor,
                                    java.lang.String uri,
                                    java.lang.String local)

Description copied from interface: SteppingNode

Find the next matching element in document order; that is, the first child element with the required name if there is one; otherwise the next sibling element if there is one; otherwise the next sibling element of the parent, grandparent, etc, up to the anchor element.

Specified by:

getSuccessorElement in interface SteppingNode<NodeImpl>

Parameters:

anchor - the root of the tree within which navigation is confined

uri - the required namespace URI, or null if any namespace is acceptable

local - the required local name, or null if any local name is acceptable

Returns:

the next element after this one in document order, with the given URI and local name if specified, or null if this is the last node in the document, or the last node within the subtree being navigated

getPreviousInDocument

public NodeImpl getPreviousInDocument()

Get the previous node in document order

Returns:

the previous node in the document, or null if there is no such node

getDeclaredNamespaces

public NamespaceBinding[] getDeclaredNamespaces(NamespaceBinding[] buffer)

Get all namespace undeclarations and undeclarations defined on this element.

Specified by:

getDeclaredNamespaces in interface NodeInfo

Parameters:

buffer - If this is non-null, and the result array fits in this buffer, then the result may overwrite the contents of this array, to avoid the cost of allocating a new array on the heap.

Returns:

An array of integers representing the namespace declarations and undeclarations present on this element. For a node other than an element, return null. Otherwise, the returned array is a sequence of namespace codes, whose meaning may be interpreted by reference to the name pool. The top half word of each namespace code represents the prefix, the bottom half represents the URI. If the bottom half is zero, then this is a namespace undeclaration rather than a declaration. The XML namespace is never included in the list. If the supplied array is larger than required, then the first unused entry will be set to -1.

For a node other than an element, the method returns null.

hasChildNodes

public boolean hasChildNodes()

Determine whether the node has any children.

Specified by:

hasChildNodes in interface NodeInfo

Returns:

true if the node has any children, false if the node has no children.

setTypeAnnotation

public void setTypeAnnotation(SchemaType type)

Set the type annotation on a node. This must only be called when the caller has verified (by validation) that the node is a valid instance of the specified type. The call is ignored if the node is not an element or attribute node.

Specified by:

setTypeAnnotation in interface MutableNodeInfo

Parameters:

type - the type annotation (possibly including high bits set to indicate the isID, isIDREF, and isNilled properties)

delete

public void delete()

Delete this node (that is, detach it from its parent)

Specified by:

delete in interface MutableNodeInfo

isDeleted

public boolean isDeleted()

Test whether this MutableNodeInfo object represents a node that has been deleted. Generally, such a node is unusable, and any attempt to use it will result in an exception being thrown

Specified by:

isDeleted in interface MutableNodeInfo

Returns:

true if this node has been deleted

removeAttribute

public void removeAttribute(NodeInfo attribute)

Remove an attribute from this element node

If this node is not an element, or if the specified node is not an attribute of this element, this method takes no action.

The attribute object itself becomes unusable; any attempt to use this attribute object, or any other object representing the same node, is likely to result in an exception.

Specified by:

removeAttribute in interface MutableNodeInfo

Parameters:

attribute - the attribute node to be removed

addAttribute

public void addAttribute(NodeName name,
                         SimpleType attType,
                         java.lang.CharSequence value,
                         int properties)

Add an attribute to this element node.

If this node is not an element, or if the supplied node is not an attribute, the method takes no action. If the element already has an attribute with this name, the method throws an exception.

This method does not perform any namespace fixup. It is the caller's responsibility to ensure that any namespace prefix used in the name of the attribute (or in its value if it has a namespace-sensitive type) is declared on this element.

Specified by:

addAttribute in interface MutableNodeInfo

Parameters:

name - the name of the new attribute

attType - the type annotation of the new attribute

value - the string value of the new attribute

properties - properties including IS_ID and IS_IDREF properties

Throws:

java.lang.IllegalStateException - if the element already has an attribute with the given name.

rename

public void rename(NodeName newNameCode)

Rename this node

Specified by:

rename in interface MutableNodeInfo

Parameters:

newNameCode - the NamePool code of the new name

addNamespace

public void addNamespace(NamespaceBinding nscode,
                         boolean unused)

Description copied from interface: MutableNodeInfo

Add a namespace binding (that is, a namespace node) to this element. This call has no effect if applied to a node other than an element.

Specified by:

addNamespace in interface MutableNodeInfo

Parameters:

nscode - The namespace code representing the (prefix, uri) pair of the namespace binding to be added. If the target element already has a namespace binding with this (prefix, uri) pair, the call has no effect. If the target element currently has a namespace binding with this prefix and a different URI, an exception is raised. The new namespace binding will also be in scope for the subtree rooted at this node (that is, the namespace is implicitly inherited)

unused - Retained for backwards compatibility

replace

public void replace(NodeInfo[] replacement,
                    boolean inherit)

Replace this node with a given sequence of nodes. This node is effectively deleted, and the replacement nodes are attached to the parent of this node in its place.

The supplied nodes will become children of this node's parent. Adjacent text nodes will be merged, and zero-length text nodes removed. The supplied nodes may be modified in situ, for example to change their parent property and to add namespace bindings, or they may be copied, at the discretion of the implementation.

Specified by:

replace in interface MutableNodeInfo

Parameters:

replacement - the replacement nodes. If this node is an attribute, the replacements must also be attributes; if this node is not an attribute, the replacements must not be attributes. source the nodes to be inserted. The implementation determines what implementation classes of node it will accept; this implementation will accept attribute, text, comment, and processing instruction nodes belonging to any implementation, but elements must be instances of ElementImpl. The supplied nodes will be modified in situ, for example to change their parent property and to add namespace bindings, if they are instances of ElementImpl; otherwise they will be copied. If the nodes are copied, then on return the supplied source array will contain the copy rather than the original.

inherit - true if the replacement nodes are to inherit the namespaces of their new parent; false if such namespaces are to be undeclared

Throws:

java.lang.IllegalArgumentException - if any of the replacement nodes is of the wrong kind. When replacing a child node, the replacement nodes must all be elements, text, comment, or PI nodes; when replacing an attribute, the replacement nodes must all be attributes.

java.lang.IllegalStateException - if this node is deleted or if it has no parent node. or if two replacement attributes have the same name.

insertChildren

public void insertChildren(NodeInfo[] source,
                           boolean atStart,
                           boolean inherit)

Insert a sequence of nodes as children of this node.

This method takes no action unless the target node is a document node or element node. It also takes no action in respect of any supplied nodes that are not elements, text nodes, comments, or processing instructions.

The supplied nodes will form the new children. Adjacent text nodes will be merged, and zero-length text nodes removed. The supplied nodes may be modified in situ, for example to change their parent property and to add namespace bindings, or they may be copied, at the discretion of the implementation.

Specified by:

insertChildren in interface MutableNodeInfo

Parameters:

source - the nodes to be inserted. The implementation determines what implementation classes of node it will accept; all implementations must accept nodes constructed using the Builder supplied by the newBuilder() method on this object. The supplied nodes may be modified in situ, for example to change their parent property and to add namespace bindings, but this depends on the implementation. The argument array may be modified as a result of the call.

atStart - true if the new nodes are to be inserted before existing children; false if they are to be inserted after existing children

inherit - true if the inserted nodes are to inherit the namespaces of their new parent; false if such namespaces are to be undeclared

Throws:

java.lang.IllegalArgumentException - if the supplied nodes use a node implementation that this implementation does not accept.

insertSiblings

public void insertSiblings(NodeInfo[] source,
                           boolean before,
                           boolean inherit)

Insert copies of a sequence of nodes as siblings of this node.

This method takes no action unless the target node is an element, text node, comment, or processing instruction, and one that has a parent node. It also takes no action in respect of any supplied nodes that are not elements, text nodes, comments, or processing instructions.

The supplied nodes must use the same data model implementation as the tree into which they will be inserted.

Specified by:

insertSiblings in interface MutableNodeInfo

Parameters:

source - the nodes to be inserted

before - true if the new nodes are to be inserted before the target node; false if they are

inherit - true if the inserted nodes are to inherit the namespaces of their new parent; false if such namespaces are to be undeclared

removeTypeAnnotation

public void removeTypeAnnotation()

Remove type information from this node (and its ancestors, recursively). This method implements the upd:removeType() primitive defined in the XQuery Update specification

Specified by:

removeTypeAnnotation in interface MutableNodeInfo

newBuilder

public Builder newBuilder()

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

Specified by:

newBuilder in interface MutableNodeInfo

Returns:

a new Builder that constructs nodes using the same object model implementation as this one, suitable for attachment to this tree

effectiveBooleanValue

public boolean effectiveBooleanValue()
                              throws XPathException

Get the effective boolean value of this sequence

Specified by:

effectiveBooleanValue in interface GroundedValue<NodeInfo>

Returns:

the effective boolean value

Throws:

XPathException - if the sequence has no effective boolean value (for example a sequence of two integers)