com.saxonica.validate
Class XSIAttributeHandler

java.lang.Object
  extended by net.sf.saxon.event.SequenceReceiver
      extended by net.sf.saxon.event.ProxyReceiver
          extended by com.saxonica.validate.ValidatingFilter
              extended by com.saxonica.validate.XSIAttributeHandler
All Implemented Interfaces:
Result, Receiver

public class XSIAttributeHandler
extends ValidatingFilter

This class processes attributes such as xsi:schemaLocation and xsi:type. To achieve this, it needs to be preceded in the pipeline by a StartTagBuffer, which buffers all attributes and namespaces, because the xsi:type and schemaLocation need to be processed before the start element event. Apart from the StartTagBuffer, this is the first class in the validation pipeline.

The main work of this class can be done in the startElement event, because the StartTagBuffer ensures that by this time, all the namespaces and attributes for the element are known and accessible.


Field Summary
 
Fields inherited from interface javax.xml.transform.Result
PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING
 
Constructor Summary
XSIAttributeHandler(StartTagBuffer buffer, ValidationStack out)
          Create a handler for xsi: attributes
 
Method Summary
 void attribute(int nameCode, int typeCode, CharSequence value, int locationId, int properties)
          Notify an attribute.
 void startElement(int nameCode, int typeCode, int locationId, int properties)
          Notify the start of an element
 
Methods inherited from class com.saxonica.validate.ValidatingFilter
setErrorCode
 
Methods inherited from class net.sf.saxon.event.ProxyReceiver
append, characters, close, comment, endDocument, endElement, getConfiguration, getDocumentLocator, getNamePool, getUnderlyingReceiver, namespace, open, processingInstruction, setPipelineConfiguration, setSystemId, setUnderlyingReceiver, setUnparsedEntity, startContent, startDocument
 
Methods inherited from class net.sf.saxon.event.SequenceReceiver
getPipelineConfiguration, getSystemId
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

XSIAttributeHandler

public XSIAttributeHandler(StartTagBuffer buffer,
                           ValidationStack out)
Create a handler for xsi: attributes

Parameters:
buffer - the preceding filter in the pipeline, which provides namespace resolution services
out - the next filter in the pipeline
Method Detail

startElement

public void startElement(int nameCode,
                         int typeCode,
                         int locationId,
                         int properties)
                  throws XPathException
Notify the start of an element

Specified by:
startElement in interface Receiver
Overrides:
startElement in class ProxyReceiver
Parameters:
nameCode - integer code identifying the name of the element within the name pool.
typeCode - integer code identifying the element's type within the name pool.
properties - for future use. Should be set to zero.
locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.
Throws:
XPathException

attribute

public void attribute(int nameCode,
                      int typeCode,
                      CharSequence value,
                      int locationId,
                      int properties)
               throws XPathException
Notify an attribute. Attributes are notified after the startElement event, and before any children. Namespaces and attributes may be intermingled.

Specified by:
attribute in interface Receiver
Overrides:
attribute in class ProxyReceiver
Parameters:
nameCode - The name of the attribute, as held in the name pool
typeCode - The type of the attribute, as held in the name pool
properties - Bit significant value. The following bits are defined:
DISABLE_ESCAPING
Disable escaping for this attribute
NO_SPECIAL_CHARACTERS
Attribute value contains no special characters
value - the string value of the attribute
locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.
Throws:
IllegalStateException: - attempt to output an attribute when there is no open element start tag
XPathException


Copyright (C) Michael H. Kay. All rights reserved.