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The XSLT and XQuery Processor
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2018-2023 Saxonica Limited
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
package net.sf.saxon.value;
import net.sf.saxon.Configuration;
import net.sf.saxon.event.Receiver;
import net.sf.saxon.event.ReceiverOption;
import net.sf.saxon.om.*;
import net.sf.saxon.pattern.NodePredicate;
import net.sf.saxon.s9api.Location;
import net.sf.saxon.str.UnicodeString;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.tree.iter.ArrayIterator;
import net.sf.saxon.tree.iter.AxisIterator;
import net.sf.saxon.tree.iter.EmptyIterator;
import net.sf.saxon.tree.iter.SingleNodeIterator;
import net.sf.saxon.tree.linked.DocumentImpl;
import net.sf.saxon.tree.util.Navigator;
import net.sf.saxon.type.SchemaType;
import net.sf.saxon.type.Type;
import net.sf.saxon.type.Untyped;
import javax.xml.transform.SourceLocator;
import java.util.Collections;
import java.util.Iterator;
/**
* This class represents a temporary tree whose root document node owns a single text node.
*/
public final class TextFragmentValue implements NodeInfo, SourceLocator {
private final UnicodeString text;
private final String baseURI;
private String documentURI;
private final GenericTreeInfo treeInfo;
private TextFragmentTextNode textNode = null; // created on demand
/**
* Constructor: create a result tree fragment containing a single text node
* @param config the Saxon Configuration
* @param value a String containing the value
* @param baseURI the base URI of the document node
*/
public TextFragmentValue(Configuration config, UnicodeString value, String baseURI) {
this.text = value;
this.baseURI = baseURI;
this.treeInfo = new GenericTreeInfo(config);
this.treeInfo.setRootNode(this);
}
/**
* Static factory method: create a result tree fragment containing a single text node,
* unless the text is zero length, in which case an empty document node is returned
* @param config the Saxon Configuration
* @param value a String containing the value
* @param baseURI the base URI of the document node
* @return the result tree fragment, or an empty document node
*/
public static NodeInfo makeTextFragment(Configuration config, UnicodeString value, String baseURI) {
if (value.length() == 0) {
// Create a childless document node: bug 4246
DocumentImpl doc = new DocumentImpl();
doc.setSystemId(baseURI);
doc.setBaseURI(baseURI);
doc.setConfiguration(config);
return doc;
} else {
return new TextFragmentValue(config, value, baseURI);
}
}
/**
* Get information about the tree to which this NodeInfo belongs
*
* @return the TreeInfo
* @since 9.7
*/
@Override
public TreeInfo getTreeInfo() {
return treeInfo;
}
/**
* Get the NodeInfo object representing the document node at the root of the tree
*
* @return the document node
*/
public NodeInfo getRootNode() {
return this;
}
/**
* Ask whether the document contains any nodes whose type annotation is anything other than
* UNTYPED
*
* @return true if the document contains elements whose type is other than UNTYPED
*/
public boolean isTyped() {
return false;
}
/**
* Return the type of node.
*
* @return Type.DOCUMENT (always)
*/
@Override
public final int getNodeKind() {
return Type.DOCUMENT;
}
/**
* Get the String Value of the document node, which is the same as the string value of the text node
* @return the string value
*/
@Override
public UnicodeString getUnicodeStringValue() {
return text;
}
/**
* Determine whether this is the same node as another node
*
* @return true if this Node object and the supplied Node object represent the
* same node in the tree.
*/
public boolean equals(Object other) {
return this == other;
}
/**
* Returns a hash code value for the object.
* @return a hash code value for this object.
*/
@Override
public int hashCode() {
return System.identityHashCode(this);
}
/**
* Ask whether this NodeInfo implementation holds a fingerprint identifying the name of the
* node in the NamePool. If the answer is true, then the {@link #getFingerprint} method must
* return the fingerprint of the node. If the answer is false, then the {@link #getFingerprint}
* method should throw an {@code 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).
*
* @return true if the implementation of this node provides fingerprints.
* @since 9.8; previously Saxon relied on using FingerprintedNode as a marker interface.
*/
@Override
public boolean hasFingerprint() {
return true;
}
/**
* Get a character string that uniquely identifies this node
*
* @param buffer the buffer to contain the generated ID
*/
@Override
public void generateId(/*@NotNull*/ StringBuilder buffer) {
buffer.append("tt");
buffer.append(treeInfo.getDocumentNumber());
}
/**
* Set the system ID (that is, the document URI property) for the document node.
*
* @throws UnsupportedOperationException (always). This kind of tree does not have a document URI.
*/
@Override
public void setSystemId(String systemId) {
documentURI = systemId;
}
/**
* Get the system ID (the document URI) of the document node.
*/
@Override
public String getSystemId() {
return documentURI;
}
/**
* Get the base URI for the document node.
*/
@Override
public String getBaseURI() {
return baseURI;
}
/**
* Determine the relative position of this node and another node, in document order.
* The other node will always be in the same document.
*
* @param other The other node, whose position is to be compared with this node
* @return -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())
*/
@Override
public int compareOrder(NodeInfo other) {
if (this == other) {
return 0;
}
return -1;
}
/**
* Get the fingerprint of the node, used for matching names
*/
@Override
public int getFingerprint() {
return -1;
}
/**
* Get the prefix part of the name of this node. This is the name before the ":" if any.
*
* @return the prefix part of the name. For an unnamed node, return "".
*/
/*@NotNull*/
@Override
public String getPrefix() {
return "";
}
/**
* 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.
*
* @return The URI of the namespace of this node. For an unnamed node, or for
* an element or attribute in the default namespace, return an empty string.
*/
/*@NotNull*/
@Override
public NamespaceUri getNamespaceUri() {
return NamespaceUri.NULL;
}
/**
* Get the display name of this node. For elements and attributes this is [prefix:]localname.
* For unnamed nodes, it is an empty string.
*
* @return The display name of this node.
* For a node with no name, return an empty string.
*/
/*@NotNull*/
@Override
public String getDisplayName() {
return "";
}
/**
* Get the local name of this node.
*
* @return The local name of this node.
* For a node with no name, return "".
*/
/*@NotNull*/
@Override
public String getLocalPart() {
return "";
}
/**
* Determine whether the node has any children.
*
* @return true if this node has any attributes,
* false otherwise.
*/
@Override
public boolean hasChildNodes() {
return text.length() != 0;
}
/**
* 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.
*/
@Override
public Location saveLocation() {
return this;
}
/**
* 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.
*
* @return 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
*/
@Override
public SchemaType getSchemaType() {
return Untyped.getInstance();
}
/**
* Get all namespace undeclarations and undeclarations defined on this element.
*
* @param 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.
* @return 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.
*/
/*@Nullable*/
@Override
public NamespaceBinding[] getDeclaredNamespaces(NamespaceBinding[] buffer) {
return null;
}
/**
* 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.
*
* @return the in-scope namespaces for an element, or null for any other kind of node.
*/
@Override
public NamespaceMap getAllNamespaces() {
return null;
}
/**
* Get the typed value.
*
* @return 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.
* @since 8.5
*/
/*@NotNull*/
@Override
public AtomicSequence atomize() {
return StringValue.makeUntypedAtomic(text);
}
/**
* Get the string value of a given attribute of this node
*
* @param uri the namespace URI of the attribute name. Supply the empty string for an attribute
* that is in no namespace
* @param local the local part of the attribute name.
* @return 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
*/
@Override
public String getAttributeValue(/*@NotNull*/ NamespaceUri uri, /*@NotNull*/ String local) {
return null;
}
/**
* Return an iteration over the nodes reached by the given axis from this node
*
* @param axisNumber The axis to be iterated over
* @return a AxisIterator that scans the nodes reached by the axis in turn.
* @see net.sf.saxon.om.AxisInfo
*/
/*@NotNull*/
@Override
public AxisIterator iterateAxis(int axisNumber) {
switch (axisNumber) {
case AxisInfo.ANCESTOR:
case AxisInfo.ATTRIBUTE:
case AxisInfo.FOLLOWING:
case AxisInfo.FOLLOWING_SIBLING:
case AxisInfo.NAMESPACE:
case AxisInfo.PARENT:
case AxisInfo.PRECEDING:
case AxisInfo.PRECEDING_SIBLING:
case AxisInfo.PRECEDING_OR_ANCESTOR:
return EmptyIterator.ofNodes();
case AxisInfo.SELF:
case AxisInfo.ANCESTOR_OR_SELF:
return SingleNodeIterator.makeIterator(this);
case AxisInfo.CHILD:
case AxisInfo.DESCENDANT:
return SingleNodeIterator.makeIterator(getTextNode());
case AxisInfo.DESCENDANT_OR_SELF:
NodeInfo[] nodes = {this, getTextNode()};
return new ArrayIterator.OfNodes<>(nodes);
default:
throw new IllegalArgumentException("Unknown axis number " + axisNumber);
}
}
/**
* Return an enumeration over the nodes reached by the given axis from this node
*
* @param axisNumber The axis to be iterated over
* @param nodeTest A pattern to be matched by the returned nodes
* @return a AxisIterator that scans the nodes reached by the axis in turn.
* @see net.sf.saxon.om.AxisInfo
*/
/*@NotNull*/
@Override
public AxisIterator iterateAxis(int axisNumber, NodePredicate nodeTest) {
switch (axisNumber) {
case AxisInfo.ANCESTOR:
case AxisInfo.ATTRIBUTE:
case AxisInfo.FOLLOWING:
case AxisInfo.FOLLOWING_SIBLING:
case AxisInfo.NAMESPACE:
case AxisInfo.PARENT:
case AxisInfo.PRECEDING:
case AxisInfo.PRECEDING_SIBLING:
case AxisInfo.PRECEDING_OR_ANCESTOR:
return EmptyIterator.ofNodes();
case AxisInfo.SELF:
case AxisInfo.ANCESTOR_OR_SELF:
return Navigator.filteredSingleton(this, nodeTest);
case AxisInfo.CHILD:
case AxisInfo.DESCENDANT:
return Navigator.filteredSingleton(getTextNode(), nodeTest);
case AxisInfo.DESCENDANT_OR_SELF:
boolean b1 = nodeTest.test(this);
NodeInfo textNode2 = getTextNode();
boolean b2 = nodeTest.test(textNode2);
if (b1) {
if (b2) {
NodeInfo[] pair = {this, textNode2};
return new ArrayIterator.OfNodes<>(pair);
} else {
return SingleNodeIterator.makeIterator(this);
}
} else {
if (b2) {
return SingleNodeIterator.makeIterator(textNode2);
} else {
return EmptyIterator.ofNodes();
}
}
default:
throw new IllegalArgumentException("Unknown axis number " + axisNumber);
}
}
/**
* Find the parent node of this node.
*
* @return The Node object describing the containing element or root node.
*/
/*@Nullable*/
@Override
public NodeInfo getParent() {
return null;
}
/**
* Get the root node
*
* @return the NodeInfo representing the root of this tree
*/
/*@NotNull*/
@Override
public NodeInfo getRoot() {
return this;
}
/**
* Copy the result tree fragment value to a given Outputter
*/
@Override
public void copy(/*@NotNull*/ Receiver out, int copyOptions, Location locationId)
throws XPathException {
out.characters(text, locationId, ReceiverOption.NONE);
}
/**
* Get the element with a given ID.
*
* @param id The unique ID of the required element
* @param getParent True if, in the case of an element of type xs:ID, we want its parent
* @return null (this kind of tree contains no elements)
*/
/*@Nullable*/
public NodeInfo selectID(String id, boolean getParent) {
return null;
}
/**
* Get the list of unparsed entities defined in this document
*
* @return 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
*/
public Iterator getUnparsedEntityNames() {
return Collections.emptyIterator();
}
/**
* Get the unparsed entity with a given name
*
* @param name the name of the entity
* @return the URI and public ID of the entity if there is one, or null if not
*/
/*@Nullable*/
public String[] getUnparsedEntity(String name) {
return null;
}
/**
* Make an instance of the text node
* @return the new or existing instance
*/
/*@Nullable*/
private TextFragmentTextNode getTextNode() {
if (textNode == null) {
textNode = new TextFragmentTextNode(this);
}
return textNode;
}
/**
* Inner class representing the text node; this is created on demand
*/
private static class TextFragmentTextNode implements NodeInfo, SourceLocator {
private final TextFragmentValue fragment;
public TextFragmentTextNode(TextFragmentValue fragment) {
this.fragment = fragment;
}
/**
* Ask whether this NodeInfo implementation holds a fingerprint identifying the name of the
* node in the NamePool. If the answer is true, then the {@link #getFingerprint} method must
* return the fingerprint of the node. If the answer is false, then the {@link #getFingerprint}
* method should throw an {@code 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).
*
* @return true if the implementation of this node provides fingerprints.
* @since 9.8; previously Saxon relied on using FingerprintedNode as a marker interface.
*/
@Override
public boolean hasFingerprint() {
return true;
}
/**
* Get information about the tree to which this NodeInfo belongs
*
* @return the TreeInfo
* @since 9.7
*/
@Override
public TreeInfo getTreeInfo() {
return fragment.treeInfo;
}
/**
* Set the system ID for the entity containing the node.
*/
@Override
public void setSystemId(String systemId) {
}
/**
* Return the type of node.
*
* @return Type.TEXT (always)
*/
@Override
public final int getNodeKind() {
return Type.TEXT;
}
/**
* Get the String Value of the text node
* @return the string value
*/
@Override
public UnicodeString getUnicodeStringValue() {
return fragment.text;
}
/**
* Determine whether this is the same node as another node
*
* @return true if this Node object and the supplied Node object represent the
* same node in the tree.
*/
public boolean equals(NodeInfo other) {
return this == other;
}
/**
* Get a character string that uniquely identifies this node
*/
@Override
public void generateId(/*@NotNull*/ StringBuilder buffer) {
buffer.append("tt");
buffer.append(fragment.treeInfo.getDocumentNumber());
buffer.append("t1");
}
/**
* Get the system ID for the entity containing the node.
*/
/*@Nullable*/
@Override
public String getSystemId() {
return null;
}
/**
* Get the base URI for the node. Default implementation for child nodes gets
* the base URI of the parent node.
*/
@Override
public String getBaseURI() {
return fragment.baseURI;
}
/**
* Determine the relative position of this node and another node, in document order.
* The other node will always be in the same document.
*
* @param other The other node, whose position is to be compared with this node
* @return -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())
*/
@Override
public int compareOrder(NodeInfo other) {
if (this == other) {
return 0;
}
return +1;
}
/**
* Get the fingerprint of the node, used for matching names
*/
@Override
public int getFingerprint() {
return -1;
}
/**
* Get the prefix part of the name of this node. This is the name before the ":" if any.
*
* @return the prefix part of the name. For an unnamed node, return "".
*/
/*@NotNull*/
@Override
public String getPrefix() {
return "";
}
/**
* 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.
*
* @return The URI of the namespace of this node. For an unnamed node, or for
* an element or attribute in the default namespace, return an empty string.
*/
/*@NotNull*/
@Override
public NamespaceUri getNamespaceUri() {
return NamespaceUri.NULL;
}
/**
* Get the display name of this node. For elements and attributes this is [prefix:]localname.
* For unnamed nodes, it is an empty string.
*
* @return The display name of this node.
* For a node with no name, return an empty string.
*/
/*@NotNull*/
@Override
public String getDisplayName() {
return "";
}
/**
* Get the local name of this node.
*
* @return The local name of this node.
* For a node with no name, return "".
*/
/*@NotNull*/
@Override
public String getLocalPart() {
return "";
}
/**
* Determine whether the node has any children.
*
* @return true if this node has any attributes,
* false otherwise.
*/
@Override
public boolean hasChildNodes() {
return false;
}
/**
* Get the string value of a given attribute of this node
*
* @param uri the namespace URI of the attribute name. Supply the empty string for an attribute
* that is in no namespace
* @param local the local part of the attribute name.
* @return 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
*/
@Override
public String getAttributeValue(/*@NotNull*/ NamespaceUri uri, /*@NotNull*/ String local) {
return null;
}
/**
* 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.
*/
@Override
public Location saveLocation() {
return this;
}
/**
* 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.
*
* @return 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
*/
@Override
public SchemaType getSchemaType() {
return null;
}
/**
* Get all namespace undeclarations and undeclarations defined on this element.
*
* @param 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.
* @return 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.
*/
/*@Nullable*/
@Override
public NamespaceBinding[] getDeclaredNamespaces(NamespaceBinding[] buffer) {
return null;
}
/**
* 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.
*
* @return the in-scope namespaces for an element, or null for any other kind of node.
*/
@Override
public NamespaceMap getAllNamespaces() {
return null;
}
/**
* Get the typed value.
*
* @return 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.
* @since 8.5
*/
/*@NotNull*/
@Override
public AtomicSequence atomize() throws XPathException {
return StringValue.makeUntypedAtomic(fragment.text);
}
/**
* Return an enumeration over the nodes reached by the given axis from this node
*
* @param axisNumber the axis to be iterated over
* @return a AxisIterator that scans the nodes reached by the axis in turn.
*/
/*@NotNull*/
@Override
public AxisIterator iterateAxis(int axisNumber) {
switch (axisNumber) {
case AxisInfo.ANCESTOR:
case AxisInfo.PARENT:
case AxisInfo.PRECEDING_OR_ANCESTOR:
return SingleNodeIterator.makeIterator(fragment);
case AxisInfo.ANCESTOR_OR_SELF:
NodeInfo[] nodes = {this, fragment};
return new ArrayIterator.OfNodes<>(nodes);
case AxisInfo.ATTRIBUTE:
case AxisInfo.CHILD:
case AxisInfo.DESCENDANT:
case AxisInfo.FOLLOWING:
case AxisInfo.FOLLOWING_SIBLING:
case AxisInfo.NAMESPACE:
case AxisInfo.PRECEDING:
case AxisInfo.PRECEDING_SIBLING:
return EmptyIterator.ofNodes();
case AxisInfo.SELF:
case AxisInfo.DESCENDANT_OR_SELF:
return SingleNodeIterator.makeIterator(this);
default:
throw new IllegalArgumentException("Unknown axis number " + axisNumber);
}
}
/**
* Return an enumeration over the nodes reached by the given axis from this node
*
* @param axisNumber the axis to be iterated over
* @param nodeTest A condition to be matched by the returned nodes
* @return a AxisIterator that scans the nodes reached by the axis in turn.
*/
/*@NotNull*/
@Override
public AxisIterator iterateAxis(int axisNumber, NodePredicate nodeTest) {
switch (axisNumber) {
case AxisInfo.ANCESTOR:
case AxisInfo.PARENT:
case AxisInfo.PRECEDING_OR_ANCESTOR:
return Navigator.filteredSingleton(fragment, nodeTest);
case AxisInfo.ANCESTOR_OR_SELF:
boolean matchesDoc = nodeTest.test(fragment);
boolean matchesText = nodeTest.test(this);
if (matchesDoc && matchesText) {
NodeInfo[] nodes = {this, fragment};
return new ArrayIterator.OfNodes<>(nodes);
} else if (matchesDoc /* && !matchesText */) {
return SingleNodeIterator.makeIterator(fragment);
} else if (matchesText /* && !matchesDoc */) {
return SingleNodeIterator.makeIterator(this);
} else {
return EmptyIterator.ofNodes();
}
case AxisInfo.ATTRIBUTE:
case AxisInfo.CHILD:
case AxisInfo.DESCENDANT:
case AxisInfo.FOLLOWING:
case AxisInfo.FOLLOWING_SIBLING:
case AxisInfo.NAMESPACE:
case AxisInfo.PRECEDING:
case AxisInfo.PRECEDING_SIBLING:
return EmptyIterator.ofNodes();
case AxisInfo.SELF:
case AxisInfo.DESCENDANT_OR_SELF:
return Navigator.filteredSingleton(this, nodeTest);
default:
throw new IllegalArgumentException("Unknown axis number " + axisNumber);
}
}
/**
* Find the parent node of this node.
*
* @return The Node object describing the containing element or root node.
*/
/*@NotNull*/
@Override
public NodeInfo getParent() {
return fragment;
}
/**
* Get the root node
*
* @return the NodeInfo representing the root of this tree
*/
/*@NotNull*/
@Override
public NodeInfo getRoot() {
return fragment;
}
/**
* Copy the node to a given Outputter
*/
@Override
public void copy(/*@NotNull*/ Receiver out, int copyOptions, Location locationId)
throws XPathException {
out.characters(fragment.text, locationId, ReceiverOption.NONE);
}
}
}