Package com.saxonica.ee.domino

Class DominoAttr

java.lang.Object

com.saxonica.ee.domino.DominoAttr

All Implemented Interfaces:

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

public class DominoAttr
extends Object
implements NodeInfo

An attribute node in the Domino tree

Constructor Summary

Constructors

Constructor	Description
DominoAttr(DominoTree tree, DominoNode parent, Attr domAttr)

Method Summary

Modifier and Type	Method	Description
AtomicSequence	atomize()	Atomize the item.
int	compareOrder(NodeInfo other)	Determine the relative position of this node and another node, in document order.
boolean	effectiveBooleanValue()	Get the effective boolean value of this sequence
boolean	equals(Object other)	Determine whether this is the same node as another node.
void	generateId(StringBuilder buffer)	Construct a character string that uniquely identifies this node.
NamespaceMap	getAllNamespaces()	Get all the namespace bindings that are in-scope for this element.
String	getAttributeValue(NamespaceUri uri, String local)	Get the string value of a given attribute of this node
String	getBaseURI()	Get the Base URI for the node, that is, the URI used for resolving a relative URI contained in the node.
NamespaceBinding[]	getDeclaredNamespaces(NamespaceBinding[] buffer)	Get all namespace declarations and undeclarations defined on this element.
String	getDisplayName()	Get the display name of this node, in the form of a lexical QName.
int	getFingerprint()	Get fingerprint.
String	getLocalPart()	Get the local part of the name of this node.
NamespaceUri	getNamespaceUri()	Get the URI part of the name of this node.
int	getNodeKind()	Get the kind of node.
NodeInfo	getParent()	Get the NodeInfo object representing the parent of this node
String	getPrefix()	Get the prefix of the name of the node.
NodeInfo	getRoot()	Get the root node of the tree containing this node
SchemaType	getSchemaType()	Get the type annotation of this node, if any.
String	getSystemId()	Get the System ID for the node.
TreeInfo	getTreeInfo()	Get information about the tree to which this NodeInfo belongs
UnicodeString	getUnicodeStringValue()	Get the value of the item as a string.
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.
AxisIterator	iterateAxis(int axisNumber, NodePredicate nodeTest)	Return an iteration over all the nodes reached by the given axis from this node that match a given NodeTest
Location	saveLocation()	Get an immutable copy of this Location object.
void	setSystemId(String systemId)	Set the system identifier for this Source.

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, 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, head, itemAt, iterate, reduce, subsequence

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

asActiveSource, attributes, children, children, copy, deliver, getAttributeValue, getColumnNumber, getConfiguration, getGenre, getLineNumber, getPublicId, getURI, hashCode, isId, isIdref, isNilled, isSameNodeInfo, isStreamed, iterateAxis, toShortString

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

makeRepeatable

Methods inherited from interface javax.xml.transform.Source

isEmpty

Constructor Details

DominoAttr

public DominoAttr(DominoTree tree,
 DominoNode parent,
 Attr domAttr)

Method Details

effectiveBooleanValue

public boolean effectiveBooleanValue()
                              throws XPathException

Get the effective boolean value of this sequence

Specified by:

effectiveBooleanValue in interface GroundedValue

Returns:

the effective boolean value

Throws:

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

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

getNodeKind

public int getNodeKind()

Get the kind of node. This will be a value such as Type.ELEMENT or Type.ATTRIBUTE. There are seven kinds of node: documents, elements, attributes, text, comments, processing-instructions, and namespaces.

Specified by:

getNodeKind in interface NodeInfo

Returns:

an integer identifying the kind of node. These integer values are the same as those used in the DOM

Since:

8.4

See Also:

• Type

equals

public boolean equals(Object other)

Determine whether this is the same node as another node.

Note that two different NodeInfo instances can represent the same conceptual node. Therefore the "==" operator should not be used to test node identity. The equals() method should give the same result as isSameNodeInfo(), but since this rule was introduced late it might not apply to all implementations.

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

This method has the same semantics as isSameNode() in DOM Level 3, but works on Saxon NodeInfo objects rather than DOM Node objects.

Specified by:

equals in interface NodeInfo

Overrides:

equals in class Object

Parameters:

other - the node to be compared with this node

Returns:

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

getSystemId

public String getSystemId()

Get the System ID for the node. Note this is not the same as the base URI: the base URI can be modified by xml:base, but the system ID cannot. The base URI is used primarily for resolving relative URIs within the content of the document. The system ID is used primarily in conjunction with a line number, for identifying the location of elements within the source XML, in particular when errors are found. For a document node, the System ID represents the value of the document-uri property as defined in the XDM data model.

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

Returns:

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

Since:

8.4

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. This will be the same as the System ID unless xml:base has been used. Where the node does not have a base URI of its own, the base URI of its parent node is returned.

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.

Since:

8.4

compareOrder

public int compareOrder(NodeInfo other)

Determine the relative position of this node and another node, in document order.

The other node must always be in the same tree; the effect of calling this method when the two nodes are in different trees is undefined. To obtain a global ordering of nodes, the application should first compare the result of getDocumentNumber(), and only if the document number is the same should compareOrder() be called.

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())

Since:

8.4

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 fingerprint. The fingerprint is a coded form of the expanded name of the node: two nodes with the same name code have the same namespace URI and the same local name. The fingerprint contains no information about the namespace prefix. For a name in the null namespace, the fingerprint is the same as the name code.

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.

Throws:

UnsupportedOperationException - if this kind of node does not hold namepool fingerprints (specifically, if hasFingerprint() returns false).

Since:

8.4 (moved into FingerprintedNode at 9.7; then back into NodeInfo at 9.8).

getLocalPart

public String getLocalPart()

Get the local part of the name of this node. This is the name after the ":" if any.

Specified by:

getLocalPart in interface NodeInfo

Returns:

the local part of the name. For a namespace-aware DOM this returns the value of attr.getLocalName() where attr is the DOM attribute node. For a non-namespace-aware DOM it examines attr.getNodeName(), returning either the full string, or the part after the colon if the name contains a colon.

Since:

8.4

getNamespaceUri

public NamespaceUri getNamespaceUri()

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:

getNamespaceUri in interface NodeInfo

Returns:

The URI of the namespace of this node. For an unnamed node, or for an element or attribute that is not in a namespace, or for a processing instruction, returns an empty string.

Since:

8.4

getDisplayName

public String getDisplayName()

Get the display name of this node, in the form of a lexical QName. 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, returns an empty string.

Since:

8.4

getPrefix

public String getPrefix()

Get the prefix of the name of the node. This is defined only for elements and attributes. If the node has no prefix, or for other kinds of node, returns a zero-length string.

Specified by:

getPrefix in interface NodeInfo

Returns:

The prefix of the name of the node.

Since:

8.4

getSchemaType

public SchemaType getSchemaType()

Get the type annotation of this node, if any. The type annotation is represented as SchemaType object.

Types derived from a DTD are not reflected in the result of this method.

Specified by:

getSchemaType in interface NodeInfo

Returns:

For element and attribute nodes: the type annotation derived from schema validation (defaulting to xs:untyped and xs:untypedAtomic in the absence of schema validation). For comments, text nodes, processing instructions, and namespaces: null. For document nodes, either xs:untyped if the document has not been validated, or xs:anyType if it has.

Since:

9.4

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

Since:

8.4

iterateAxis

public AxisIterator iterateAxis(int axisNumber,
 NodePredicate nodeTest)

Return an iteration over all the nodes reached by the given axis from this node that match a given NodeTest

Specified by:

iterateAxis in interface NodeInfo

Parameters:

axisNumber - an integer identifying the axis; one of the constants defined in class AxisInfo

nodeTest - A condition to be satisfied by the returned nodes; nodes that do not satisfy this condition are not included in the result

Returns:

an AxisIterator that delivers the nodes reached by the axis in turn. The nodes are returned in axis order (document order for a forwards axis, reverse document order for a reverse axis).

Throws:

UnsupportedOperationException - if the namespace axis is requested and this axis is not supported for this implementation.

Since:

8.4

See Also:

• AxisInfo

getAttributeValue

public String getAttributeValue(NamespaceUri uri,
 String local)

Get the string value of a given attribute of this node

Specified by:

getAttributeValue in interface NodeInfo

Parameters:

uri - the namespace URI of the attribute name. Supply the empty string for an attribute that is in no namespace

local - the local part of the attribute name.

Returns:

the attribute value if it exists, or null if it does not exist. Always returns null if this node is not an element.

Since:

9.4

getRoot

public NodeInfo getRoot()

Get the root node of the tree containing this node

Specified by:

getRoot in interface NodeInfo

Returns:

the NodeInfo representing the top-level ancestor of this node. This will not necessarily be a document node. If this node has no parent, then the method returns this node.

Since:

8.4

hasChildNodes

public boolean hasChildNodes()

Determine whether the node has any children.

Note: the result is equivalent to iterateAxis(Axis.CHILD).next() != null

Specified by:

hasChildNodes in interface NodeInfo

Returns:

True if the node has one or more children

Since:

8.4

generateId

public void generateId(StringBuilder buffer)

Construct a character string that uniquely identifies this node. Note: a.isSameNode(b) if and only if generateId(a)==generateId(b)

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.

getDeclaredNamespaces

public NamespaceBinding[] getDeclaredNamespaces(NamespaceBinding[] buffer)

Get all namespace declarations and undeclarations defined on this element.

This method is intended primarily for internal use. User applications needing information about the namespace context of a node should use iterateAxis(Axis.NAMESPACE). (However, not all implementations support the namespace axis, whereas all implementations are required to support this method.)

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.

getAllNamespaces

public NamespaceMap getAllNamespaces()

Get all the namespace bindings that are in-scope for this element.

For an element return all the prefix-to-uri bindings that are in scope. This may include a binding to the default namespace (represented by a prefix of ""). It will never include "undeclarations" - that is, the namespace URI will never be empty; the effect of an undeclaration is to remove a binding from the in-scope namespaces, not to add anything.

For a node other than an element, returns null.

Specified by:

getAllNamespaces in interface NodeInfo

Returns:

the in-scope namespaces for an element, or null for any other kind of node.

getUnicodeStringValue

public UnicodeString getUnicodeStringValue()

Get the value of the item as a string. For nodes, this is the string value of the node as defined in the XPath 2.0 data model, except that all nodes are treated as being untyped: it is not an error to get the string value of a node with a complex type. For atomic values, the method returns the result of casting the atomic value to a string.

Specified by:

getUnicodeStringValue in interface GroundedValue

Specified by:

getUnicodeStringValue in interface Item

Returns:

the string value of the item

Throws:

UnsupportedOperationException - if the item is a function item (an unchecked exception is used here to avoid introducing exception handling to a large number of paths where it is not needed)

Since:

8.4

atomize

public AtomicSequence atomize()
                       throws XPathException

Atomize the item.

Specified by:

atomize in interface Item

Specified by:

atomize in interface NodeInfo

Returns:

the result of atomization

Throws:

XPathException - if atomization is not allowed for this kind of item

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

Returns:

an immutable copy (which may be the original object, if it is already immutable)

setSystemId

public void setSystemId(String systemId)

Set the system identifier for this Source.

The system identifier is optional if the source does not get its data from a URL, but it may still be useful to provide one. The application can use a system identifier, for example, to resolve relative URIs and to include in error messages and warnings.

Specified by:

setSystemId in interface NodeInfo

Specified by:

setSystemId in interface Source

Parameters:

systemId - The system identifier as a URL string.