org.apache.xerces.impl.xs.identity
Class XPathMatcher

java.lang.Object
  extended by org.apache.xerces.impl.xs.identity.XPathMatcher
Direct Known Subclasses:
Field.Matcher, Selector.Matcher

public class XPathMatcher
extends java.lang.Object

XPath matcher.

Version:
$Id: XPathMatcher.java 572110 2007-09-02 19:04:44Z mrglavas $
Author:
Andy Clark, IBM

INTERNAL:

Usage of this class is not supported. It may be altered or removed at any time.

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  java.lang.Object fMatchedString
          The matching string.
protected static int MATCHED
           
protected static int MATCHED_ATTRIBUTE
           
protected static int MATCHED_DESCENDANT
           
protected static int MATCHED_DESCENDANT_PREVIOUS
           
 
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, java.lang.Object value, short valueType, org.apache.xerces.xs.ShortList itemValueType)
           
protected  void handleContent(org.apache.xerces.xs.XSTypeDefinition type, boolean nillable, java.lang.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(java.lang.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.
 java.lang.String toString()
          Returns a string representation of this object.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

DEBUG_ALL

protected static final boolean DEBUG_ALL
Compile to true to debug everything.

See Also:
Constant Field Values

DEBUG_METHODS

protected static final boolean DEBUG_METHODS
Compile to true to debug method callbacks.

See Also:
Constant Field Values

DEBUG_METHODS2

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

See Also:
Constant Field Values

DEBUG_METHODS3

protected static final boolean DEBUG_METHODS3
Compile to true to debug the really important methods.

See Also:
Constant Field Values

DEBUG_MATCH

protected static final boolean DEBUG_MATCH
Compile to true to debug match.

See Also:
Constant Field Values

DEBUG_STACK

protected static final boolean DEBUG_STACK
Compile to true to debug step index stack.

See Also:
Constant Field Values

DEBUG_ANY

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

See Also:
Constant Field Values

MATCHED

protected static final int MATCHED
See Also:
Constant Field Values

MATCHED_ATTRIBUTE

protected static final int MATCHED_ATTRIBUTE
See Also:
Constant Field Values

MATCHED_DESCENDANT

protected static final int MATCHED_DESCENDANT
See Also:
Constant Field Values

MATCHED_DESCENDANT_PREVIOUS

protected static final int MATCHED_DESCENDANT_PREVIOUS
See Also:
Constant Field Values

fMatchedString

protected java.lang.Object fMatchedString
The matching string.

Constructor Detail

XPathMatcher

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

Parameters:
xpath - The xpath.
Method Detail

isMatched

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


handleContent

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

matched

protected void matched(java.lang.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.
Throws:
org.xml.sax.SAXException - Thrown by handler to signal an error.

endElement

public void endElement(org.apache.xerces.xni.QName element,
                       org.apache.xerces.xs.XSTypeDefinition type,
                       boolean nillable,
                       java.lang.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.

toString

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

Overrides:
toString in class java.lang.Object


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