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Posted to commons-cvs@xml.apache.org by mc...@apache.org on 2005/06/09 23:00:22 UTC
cvs commit: xml-commons/java/external/src/org/w3c/dom/xpath XPathResult.java XPathNSResolver.java XPathNamespace.java XPathExpression.java XPathException.java XPathEvaluator.java
mcnamara 2005/06/09 14:00:22
Added: java/external/src/org/w3c/dom/xpath XPathResult.java
XPathNSResolver.java XPathNamespace.java
XPathExpression.java XPathException.java
XPathEvaluator.java
Log:
Add DOM L3 XPath APIs (from http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226).
This allows us to consolidate the DOM packages in xml-apis.jar and remove them from xalan.jar.
Revision Changes Path
1.1 xml-commons/java/external/src/org/w3c/dom/xpath/XPathResult.java
Index: XPathResult.java
===================================================================
/*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom.xpath;
import org.w3c.dom.Node;
import org.w3c.dom.DOMException;
/**
* The <code>XPathResult</code> interface represents the result of the
* evaluation of an XPath 1.0 expression within the context of a particular
* node. Since evaluation of an XPath expression can result in various
* result types, this object makes it possible to discover and manipulate
* the type and value of the result.
* <p>See also the <a href='http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226'>Document Object Model (DOM) Level 3 XPath Specification</a>.
*/
public interface XPathResult {
// XPathResultType
/**
* This code does not represent a specific type. An evaluation of an XPath
* expression will never produce this type. If this type is requested,
* then the evaluation returns whatever type naturally results from
* evaluation of the expression.
* <br>If the natural result is a node set when <code>ANY_TYPE</code> was
* requested, then <code>UNORDERED_NODE_ITERATOR_TYPE</code> is always
* the resulting type. Any other representation of a node set must be
* explicitly requested.
*/
public static final short ANY_TYPE = 0;
/**
* The result is a <a href='http://www.w3.org/TR/1999/REC-xpath-19991116#numbers'>number</a> as defined by [<a href='http://www.w3.org/TR/1999/REC-xpath-19991116'>XPath 1.0</a>].
* Document modification does not invalidate the number, but may mean
* that reevaluation would not yield the same number.
*/
public static final short NUMBER_TYPE = 1;
/**
* The result is a <a href='http://www.w3.org/TR/1999/REC-xpath-19991116#strings'>string</a> as defined by [<a href='http://www.w3.org/TR/1999/REC-xpath-19991116'>XPath 1.0</a>].
* Document modification does not invalidate the string, but may mean
* that the string no longer corresponds to the current document.
*/
public static final short STRING_TYPE = 2;
/**
* The result is a <a href='http://www.w3.org/TR/1999/REC-xpath-19991116#booleans'>boolean</a> as defined by [<a href='http://www.w3.org/TR/1999/REC-xpath-19991116'>XPath 1.0</a>].
* Document modification does not invalidate the boolean, but may mean
* that reevaluation would not yield the same boolean.
*/
public static final short BOOLEAN_TYPE = 3;
/**
* The result is a <a href='http://www.w3.org/TR/1999/REC-xpath-19991116#node-sets'>node set</a> as defined by [<a href='http://www.w3.org/TR/1999/REC-xpath-19991116'>XPath 1.0</a>] that
* will be accessed iteratively, which may not produce nodes in a
* particular order. Document modification invalidates the iteration.
* <br>This is the default type returned if the result is a node set and
* <code>ANY_TYPE</code> is requested.
*/
public static final short UNORDERED_NODE_ITERATOR_TYPE = 4;
/**
* The result is a node set as defined by [<a href='http://www.w3.org/TR/1999/REC-xpath-19991116'>XPath 1.0</a>] that
* will be accessed iteratively, which will produce document-ordered
* nodes. Document modification invalidates the iteration.
*/
public static final short ORDERED_NODE_ITERATOR_TYPE = 5;
/**
* The result is a <a href='http://www.w3.org/TR/1999/REC-xpath-19991116#node-sets'>node set</a> as defined by [<a href='http://www.w3.org/TR/1999/REC-xpath-19991116'>XPath 1.0</a>] that
* will be accessed as a snapshot list of nodes that may not be in a
* particular order. Document modification does not invalidate the
* snapshot but may mean that reevaluation would not yield the same
* snapshot and nodes in the snapshot may have been altered, moved, or
* removed from the document.
*/
public static final short UNORDERED_NODE_SNAPSHOT_TYPE = 6;
/**
* The result is a <a href='http://www.w3.org/TR/1999/REC-xpath-19991116#node-sets'>node set</a> as defined by [<a href='http://www.w3.org/TR/1999/REC-xpath-19991116'>XPath 1.0</a>] that
* will be accessed as a snapshot list of nodes that will be in original
* document order. Document modification does not invalidate the
* snapshot but may mean that reevaluation would not yield the same
* snapshot and nodes in the snapshot may have been altered, moved, or
* removed from the document.
*/
public static final short ORDERED_NODE_SNAPSHOT_TYPE = 7;
/**
* The result is a <a href='http://www.w3.org/TR/1999/REC-xpath-19991116#node-sets'>node set</a> as defined by [<a href='http://www.w3.org/TR/1999/REC-xpath-19991116'>XPath 1.0</a>] and
* will be accessed as a single node, which may be <code>null</code>if
* the node set is empty. Document modification does not invalidate the
* node, but may mean that the result node no longer corresponds to the
* current document. This is a convenience that permits optimization
* since the implementation can stop once any node in the resulting set
* has been found.
* <br>If there is more than one node in the actual result, the single
* node returned might not be the first in document order.
*/
public static final short ANY_UNORDERED_NODE_TYPE = 8;
/**
* The result is a <a href='http://www.w3.org/TR/1999/REC-xpath-19991116#node-sets'>node set</a> as defined by [<a href='http://www.w3.org/TR/1999/REC-xpath-19991116'>XPath 1.0</a>] and
* will be accessed as a single node, which may be <code>null</code> if
* the node set is empty. Document modification does not invalidate the
* node, but may mean that the result node no longer corresponds to the
* current document. This is a convenience that permits optimization
* since the implementation can stop once the first node in document
* order of the resulting set has been found.
* <br>If there are more than one node in the actual result, the single
* node returned will be the first in document order.
*/
public static final short FIRST_ORDERED_NODE_TYPE = 9;
/**
* A code representing the type of this result, as defined by the type
* constants.
*/
public short getResultType();
/**
* The value of this number result. If the native double type of the DOM
* binding does not directly support the exact IEEE 754 result of the
* XPath expression, then it is up to the definition of the binding to
* specify how the XPath number is converted to the native binding
* number.
* @exception XPathException
* TYPE_ERR: raised if <code>resultType</code> is not
* <code>NUMBER_TYPE</code>.
*/
public double getNumberValue()
throws XPathException;
/**
* The value of this string result.
* @exception XPathException
* TYPE_ERR: raised if <code>resultType</code> is not
* <code>STRING_TYPE</code>.
*/
public String getStringValue()
throws XPathException;
/**
* The value of this boolean result.
* @exception XPathException
* TYPE_ERR: raised if <code>resultType</code> is not
* <code>BOOLEAN_TYPE</code>.
*/
public boolean getBooleanValue()
throws XPathException;
/**
* The value of this single node result, which may be <code>null</code>.
* @exception XPathException
* TYPE_ERR: raised if <code>resultType</code> is not
* <code>ANY_UNORDERED_NODE_TYPE</code> or
* <code>FIRST_ORDERED_NODE_TYPE</code>.
*/
public Node getSingleNodeValue()
throws XPathException;
/**
* Signifies that the iterator has become invalid. True if
* <code>resultType</code> is <code>UNORDERED_NODE_ITERATOR_TYPE</code>
* or <code>ORDERED_NODE_ITERATOR_TYPE</code> and the document has been
* modified since this result was returned.
*/
public boolean getInvalidIteratorState();
/**
* The number of nodes in the result snapshot. Valid values for
* snapshotItem indices are <code>0</code> to
* <code>snapshotLength-1</code> inclusive.
* @exception XPathException
* TYPE_ERR: raised if <code>resultType</code> is not
* <code>UNORDERED_NODE_SNAPSHOT_TYPE</code> or
* <code>ORDERED_NODE_SNAPSHOT_TYPE</code>.
*/
public int getSnapshotLength()
throws XPathException;
/**
* Iterates and returns the next node from the node set or
* <code>null</code>if there are no more nodes.
* @return Returns the next node.
* @exception XPathException
* TYPE_ERR: raised if <code>resultType</code> is not
* <code>UNORDERED_NODE_ITERATOR_TYPE</code> or
* <code>ORDERED_NODE_ITERATOR_TYPE</code>.
* @exception DOMException
* INVALID_STATE_ERR: The document has been mutated since the result was
* returned.
*/
public Node iterateNext()
throws XPathException, DOMException;
/**
* Returns the <code>index</code>th item in the snapshot collection. If
* <code>index</code> is greater than or equal to the number of nodes in
* the list, this method returns <code>null</code>. Unlike the iterator
* result, the snapshot does not become invalid, but may not correspond
* to the current document if it is mutated.
* @param index Index into the snapshot collection.
* @return The node at the <code>index</code>th position in the
* <code>NodeList</code>, or <code>null</code> if that is not a valid
* index.
* @exception XPathException
* TYPE_ERR: raised if <code>resultType</code> is not
* <code>UNORDERED_NODE_SNAPSHOT_TYPE</code> or
* <code>ORDERED_NODE_SNAPSHOT_TYPE</code>.
*/
public Node snapshotItem(int index)
throws XPathException;
}
1.1 xml-commons/java/external/src/org/w3c/dom/xpath/XPathNSResolver.java
Index: XPathNSResolver.java
===================================================================
/*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom.xpath;
/**
* The <code>XPathNSResolver</code> interface permit <code>prefix</code>
* strings in the expression to be properly bound to
* <code>namespaceURI</code> strings. <code>XPathEvaluator</code> can
* construct an implementation of <code>XPathNSResolver</code> from a node,
* or the interface may be implemented by any application.
* <p>See also the <a href='http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226'>Document Object Model (DOM) Level 3 XPath Specification</a>.
*/
public interface XPathNSResolver {
/**
* Look up the namespace URI associated to the given namespace prefix. The
* XPath evaluator must never call this with a <code>null</code> or
* empty argument, because the result of doing this is undefined.
* @param prefix The prefix to look for.
* @return Returns the associated namespace URI or <code>null</code> if
* none is found.
*/
public String lookupNamespaceURI(String prefix);
}
1.1 xml-commons/java/external/src/org/w3c/dom/xpath/XPathNamespace.java
Index: XPathNamespace.java
===================================================================
/*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom.xpath;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* The <code>XPathNamespace</code> interface is returned by
* <code>XPathResult</code> interfaces to represent the XPath namespace node
* type that DOM lacks. There is no public constructor for this node type.
* Attempts to place it into a hierarchy or a NamedNodeMap result in a
* <code>DOMException</code> with the code <code>HIERARCHY_REQUEST_ERR</code>
* . This node is read only, so methods or setting of attributes that would
* mutate the node result in a DOMException with the code
* <code>NO_MODIFICATION_ALLOWED_ERR</code>.
* <p>The core specification describes attributes of the <code>Node</code>
* interface that are different for different node types but does not
* describe <code>XPATH_NAMESPACE_NODE</code>, so here is a description of
* those attributes for this node type. All attributes of <code>Node</code>
* not described in this section have a <code>null</code> or
* <code>false</code> value.
* <p><code>ownerDocument</code> matches the <code>ownerDocument</code> of the
* <code>ownerElement</code> even if the element is later adopted.
* <p><code>nodeName</code> is always the string "<code>#namespace</code>".
* <p><code>prefix</code> is the prefix of the namespace represented by the
* node.
* <p><code>localName</code> is the same as <code>prefix</code>.
* <p><code>nodeType</code> is equal to <code>XPATH_NAMESPACE_NODE</code>.
* <p><code>namespaceURI</code> is the namespace URI of the namespace
* represented by the node.
* <p><code>nodeValue</code> is the same as <code>namespaceURI</code>.
* <p><code>adoptNode</code>, <code>cloneNode</code>, and
* <code>importNode</code> fail on this node type by raising a
* <code>DOMException</code> with the code <code>NOT_SUPPORTED_ERR</code>.
* <p ><b>Note:</b> In future versions of the XPath specification, the
* definition of a namespace node may be changed incomatibly, in which case
* incompatible changes to field values may be required to implement
* versions beyond XPath 1.0.
* <p>See also the <a href='http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226'>Document Object Model (DOM) Level 3 XPath Specification</a>.
*/
public interface XPathNamespace extends Node {
// XPathNodeType
/**
* The node is a <code>Namespace</code>.
*/
public static final short XPATH_NAMESPACE_NODE = 13;
/**
* The <code>Element</code> on which the namespace was in scope when it
* was requested. This does not change on a returned namespace node even
* if the document changes such that the namespace goes out of scope on
* that element and this node is no longer found there by XPath.
*/
public Element getOwnerElement();
}
1.1 xml-commons/java/external/src/org/w3c/dom/xpath/XPathExpression.java
Index: XPathExpression.java
===================================================================
/*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom.xpath;
import org.w3c.dom.Node;
import org.w3c.dom.DOMException;
/**
* The <code>XPathExpression</code> interface represents a parsed and resolved
* XPath expression.
* <p>See also the <a href='http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226'>Document Object Model (DOM) Level 3 XPath Specification</a>.
*/
public interface XPathExpression {
/**
* Evaluates this XPath expression and returns a result.
* @param contextNode The <code>context</code> is context node for the
* evaluation of this XPath expression.If the XPathEvaluator was
* obtained by casting the <code>Document</code> then this must be
* owned by the same document and must be a <code>Document</code>,
* <code>Element</code>, <code>Attribute</code>, <code>Text</code>,
* <code>CDATASection</code>, <code>Comment</code>,
* <code>ProcessingInstruction</code>, or <code>XPathNamespace</code>
* node.If the context node is a <code>Text</code> or a
* <code>CDATASection</code>, then the context is interpreted as the
* whole logical text node as seen by XPath, unless the node is empty
* in which case it may not serve as the XPath context.
* @param type If a specific <code>type</code> is specified, then the
* result will be coerced to return the specified type relying on
* XPath conversions and fail if the desired coercion is not possible.
* This must be one of the type codes of <code>XPathResult</code>.
* @param result The <code>result</code> specifies a specific result
* object which may be reused and returned by this method. If this is
* specified as <code>null</code>or the implementation does not reuse
* the specified result, a new result object will be constructed and
* returned.For XPath 1.0 results, this object will be of type
* <code>XPathResult</code>.
* @return The result of the evaluation of the XPath expression.For XPath
* 1.0 results, this object will be of type <code>XPathResult</code>.
* @exception XPathException
* TYPE_ERR: Raised if the result cannot be converted to return the
* specified type.
* @exception DOMException
* WRONG_DOCUMENT_ERR: The Node is from a document that is not supported
* by the XPathEvaluator that created this <code>XPathExpression</code>
* .
* <br>NOT_SUPPORTED_ERR: The Node is not a type permitted as an XPath
* context node or the request type is not permitted by this
* <code>XPathExpression</code>.
*/
public Object evaluate(Node contextNode,
short type,
Object result)
throws XPathException, DOMException;
}
1.1 xml-commons/java/external/src/org/w3c/dom/xpath/XPathException.java
Index: XPathException.java
===================================================================
/*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom.xpath;
/**
* A new exception has been created for exceptions specific to these XPath
* interfaces.
* <p>See also the <a href='http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226'>Document Object Model (DOM) Level 3 XPath Specification</a>.
*/
public class XPathException extends RuntimeException {
public XPathException(short code, String message) {
super(message);
this.code = code;
}
public short code;
// XPathExceptionCode
/**
* If the expression has a syntax error or otherwise is not a legal
* expression according to the rules of the specific
* <code>XPathEvaluator</code> or contains specialized extension
* functions or variables not supported by this implementation.
*/
public static final short INVALID_EXPRESSION_ERR = 51;
/**
* If the expression cannot be converted to return the specified type.
*/
public static final short TYPE_ERR = 52;
}
1.1 xml-commons/java/external/src/org/w3c/dom/xpath/XPathEvaluator.java
Index: XPathEvaluator.java
===================================================================
/*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom.xpath;
import org.w3c.dom.Node;
import org.w3c.dom.DOMException;
/**
* The evaluation of XPath expressions is provided by
* <code>XPathEvaluator</code>. In a DOM implementation which supports the
* XPath 3.0 feature, as described above, the <code>XPathEvaluator</code>
* interface will be implemented on the same object which implements the
* <code>Document</code> interface permitting it to be obtained by the usual
* binding-specific method such as casting or by using the DOM Level 3
* getInterface method. In this case the implementation obtained from the
* Document supports the XPath DOM module and is compatible with the XPath
* 1.0 specification.
* <p>Evaluation of expressions with specialized extension functions or
* variables may not work in all implementations and is, therefore, not
* portable. <code>XPathEvaluator</code> implementations may be available
* from other sources that could provide specific support for specialized
* extension functions or variables as would be defined by other
* specifications.
* <p>See also the <a href='http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226'>Document Object Model (DOM) Level 3 XPath Specification</a>.
*/
public interface XPathEvaluator {
/**
* Creates a parsed XPath expression with resolved namespaces. This is
* useful when an expression will be reused in an application since it
* makes it possible to compile the expression string into a more
* efficient internal form and preresolve all namespace prefixes which
* occur within the expression.
* @param expression The XPath expression string to be parsed.
* @param resolver The <code>resolver</code> permits translation of all
* prefixes, including the <code>xml</code> namespace prefix, within
* the XPath expression into appropriate namespace URIs. If this is
* specified as <code>null</code>, any namespace prefix within the
* expression will result in <code>DOMException</code> being thrown
* with the code <code>NAMESPACE_ERR</code>.
* @return The compiled form of the XPath expression.
* @exception XPathException
* INVALID_EXPRESSION_ERR: Raised if the expression is not legal
* according to the rules of the <code>XPathEvaluator</code>.
* @exception DOMException
* NAMESPACE_ERR: Raised if the expression contains namespace prefixes
* which cannot be resolved by the specified
* <code>XPathNSResolver</code>.
*/
public XPathExpression createExpression(String expression,
XPathNSResolver resolver)
throws XPathException, DOMException;
/**
* Adapts any DOM node to resolve namespaces so that an XPath expression
* can be easily evaluated relative to the context of the node where it
* appeared within the document. This adapter works like the DOM Level 3
* method <code>lookupNamespaceURI</code> on nodes in resolving the
* namespaceURI from a given prefix using the current information
* available in the node's hierarchy at the time lookupNamespaceURI is
* called. also correctly resolving the implicit xml prefix.
* @param nodeResolver The node to be used as a context for namespace
* resolution.
* @return <code>XPathNSResolver</code> which resolves namespaces with
* respect to the definitions in scope for a specified node.
*/
public XPathNSResolver createNSResolver(Node nodeResolver);
/**
* Evaluates an XPath expression string and returns a result of the
* specified type if possible.
* @param expression The XPath expression string to be parsed and
* evaluated.
* @param contextNode The <code>context</code> is context node for the
* evaluation of this XPath expression. If the XPathEvaluator was
* obtained by casting the <code>Document</code> then this must be
* owned by the same document and must be a <code>Document</code>,
* <code>Element</code>, <code>Attribute</code>, <code>Text</code>,
* <code>CDATASection</code>, <code>Comment</code>,
* <code>ProcessingInstruction</code>, or <code>XPathNamespace</code>
* node. If the context node is a <code>Text</code> or a
* <code>CDATASection</code>, then the context is interpreted as the
* whole logical text node as seen by XPath, unless the node is empty
* in which case it may not serve as the XPath context.
* @param resolver The <code>resolver</code> permits translation of all
* prefixes, including the <code>xml</code> namespace prefix, within
* the XPath expression into appropriate namespace URIs. If this is
* specified as <code>null</code>, any namespace prefix within the
* expression will result in <code>DOMException</code> being thrown
* with the code <code>NAMESPACE_ERR</code>.
* @param type If a specific <code>type</code> is specified, then the
* result will be returned as the corresponding type.For XPath 1.0
* results, this must be one of the codes of the
* <code>XPathResult</code> interface.
* @param result The <code>result</code> specifies a specific result
* object which may be reused and returned by this method. If this is
* specified as <code>null</code>or the implementation does not reuse
* the specified result, a new result object will be constructed and
* returned.For XPath 1.0 results, this object will be of type
* <code>XPathResult</code>.
* @return The result of the evaluation of the XPath expression.For XPath
* 1.0 results, this object will be of type <code>XPathResult</code>.
* @exception XPathException
* INVALID_EXPRESSION_ERR: Raised if the expression is not legal
* according to the rules of the <code>XPathEvaluator</code>i
* <br>TYPE_ERR: Raised if the result cannot be converted to return the
* specified type.
* @exception DOMException
* NAMESPACE_ERR: Raised if the expression contains namespace prefixes
* which cannot be resolved by the specified
* <code>XPathNSResolver</code>.
* <br>WRONG_DOCUMENT_ERR: The Node is from a document that is not
* supported by this <code>XPathEvaluator</code>.
* <br>NOT_SUPPORTED_ERR: The Node is not a type permitted as an XPath
* context node or the request type is not permitted by this
* <code>XPathEvaluator</code>.
*/
public Object evaluate(String expression,
Node contextNode,
XPathNSResolver resolver,
short type,
Object result)
throws XPathException, DOMException;
}