org.apache.xerces.impl.xs.identity

Class XPathMatcher

Known Direct Subclasses:
Field.Matcher, Selector.Matcher

public class XPathMatcher
extends java.lang.Object

XPath matcher.
Version:
$Id: XPathMatcher.java 320342 2005-05-09 21:03:33Z ankitp $
Author:
Andy Clark, IBM

Field Summary

protected static boolean
DEBUG_ALL
Compile to true to debug everything.
protected static boolean
DEBUG_ANY
Don't touch this value unless you add more debug constants.
protected static boolean
DEBUG_MATCH
Compile to true to debug match.
protected static boolean
DEBUG_METHODS
Compile to true to debug method callbacks.
protected static boolean
DEBUG_METHODS2
Compile to true to debug important method callbacks.
protected static boolean
DEBUG_METHODS3
Compile to true to debug the really important methods.
protected static boolean
DEBUG_STACK
Compile to true to debug step index stack.
protected static int
MATCHED
protected static int
MATCHED_ATTRIBUTE
protected static int
MATCHED_DESCENDANT
protected static int
MATCHED_DESCENDANT_PREVIOUS
protected Object
fMatchedString
The matching string.

Constructor Summary

XPathMatcher(XPath xpath)
Constructs an XPath matcher that implements a document fragment handler.

Method Summary

void
endElement(org.apache.xerces.xni.QName element, org.apache.xerces.xs.XSTypeDefinition type, boolean nillable, Object value, short valueType, org.apache.xerces.xs.ShortList itemValueType)
protected void
handleContent(org.apache.xerces.xs.XSTypeDefinition type, boolean nillable, Object value, short valueType, org.apache.xerces.xs.ShortList itemValueType)
boolean
isMatched()
Returns value of first member of fMatched that is nonzero.
protected void
matched(Object actualValue, short valueType, org.apache.xerces.xs.ShortList itemValueType, boolean isNil)
This method is called when the XPath handler matches the XPath expression.
void
startDocumentFragment()
The start of the document fragment.
void
startElement(org.apache.xerces.xni.QName element, org.apache.xerces.xni.XMLAttributes attributes)
The start of an element.
String
toString()
Returns a string representation of this object.

Field Details

DEBUG_ALL

protected static final boolean DEBUG_ALL
Compile to true to debug everything.
Field Value:
false

DEBUG_ANY

protected static final boolean DEBUG_ANY
Don't touch this value unless you add more debug constants.

DEBUG_MATCH

protected static final boolean DEBUG_MATCH
Compile to true to debug match.
Field Value:
false

DEBUG_METHODS

protected static final boolean DEBUG_METHODS
Compile to true to debug method callbacks.
Field Value:
false

DEBUG_METHODS2

protected static final boolean DEBUG_METHODS2
Compile to true to debug important method callbacks.

DEBUG_METHODS3

protected static final boolean DEBUG_METHODS3
Compile to true to debug the really important methods.
Field Value:
false

DEBUG_STACK

protected static final boolean DEBUG_STACK
Compile to true to debug step index stack.
Field Value:
false

MATCHED

protected static final int MATCHED
Field Value:
1

MATCHED_ATTRIBUTE

protected static final int MATCHED_ATTRIBUTE
Field Value:
3

MATCHED_DESCENDANT

protected static final int MATCHED_DESCENDANT
Field Value:
5

MATCHED_DESCENDANT_PREVIOUS

protected static final int MATCHED_DESCENDANT_PREVIOUS
Field Value:
13

fMatchedString

protected Object fMatchedString
The matching string.

Constructor Details

XPathMatcher

public XPathMatcher(XPath xpath)
Constructs an XPath matcher that implements a document fragment handler.
Parameters:
xpath - The xpath.

Method Details

endElement

public void endElement(org.apache.xerces.xni.QName element,
                       org.apache.xerces.xs.XSTypeDefinition type,
                       boolean nillable,
                       Object value,
                       short valueType,
                       org.apache.xerces.xs.ShortList itemValueType)
Parameters:
element - name of the element.
type - content type of this element. IOW, the XML schema type of the value. Note that this may not be the type declared in the element declaration, but it is "the actual type". For example, if the XML is <foo xsi:type="xs:string">aaa</foo>, this parameter will be "xs:string".
nillable - - nillable true if the element declaration is nillable.
value - - actual value the typed value of the content of this element.

handleContent

protected void handleContent(org.apache.xerces.xs.XSTypeDefinition type,
                             boolean nillable,
                             Object value,
                             short valueType,
                             org.apache.xerces.xs.ShortList itemValueType)

isMatched

public boolean isMatched()
Returns value of first member of fMatched that is nonzero.

matched

protected void matched(Object actualValue,
                       short valueType,
                       org.apache.xerces.xs.ShortList itemValueType,
                       boolean isNil)
This method is called when the XPath handler matches the XPath expression. Subclasses can override this method to provide default handling upon a match.

startDocumentFragment

public void startDocumentFragment()
The start of the document fragment.

startElement

public void startElement(org.apache.xerces.xni.QName element,
                         org.apache.xerces.xni.XMLAttributes attributes)
The start of an element. If the document specifies the start element by using an empty tag, then the startElement method will immediately be followed by the endElement method, with no intervening methods.
Parameters:
element - The name of the element.
attributes - The element attributes.

toString

public String toString()
Returns a string representation of this object.

Copyright B) 1999-2006 The Apache Software Foundation. All Rights Reserved.