com.saxonica.validate
Class AttributeValidator

java.lang.Object
  net.sf.saxon.event.SequenceReceiver
      net.sf.saxon.event.ProxyReceiver
          com.saxonica.validate.ValidatingFilter
              com.saxonica.validate.ContentValidator
                  com.saxonica.validate.AttributeValidator

All Implemented Interfaces:

Result, Receiver

Direct Known Subclasses:

AllElementValidator, ComplexContentValidator, EmptyContentValidator, SimpleContentValidator

public abstract class AttributeValidator
extends ContentValidator

This class is an abstract superclass for all the receivers that do element content validation. Since all kinds of element content can be associated with attributes, the attribute validation is handled at this level.

Field Summary

Fields inherited from class com.saxonica.validate.ContentValidator

nil, NIL_ALLOWED, NIL_DISALLOWED, NIL_IGNORED, pendingMessages, xsiType

Fields inherited from class net.sf.saxon.event.ProxyReceiver

nextReceiver

Fields inherited from class net.sf.saxon.event.SequenceReceiver

pipelineConfiguration, previousAtomic, systemId

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

AttributeValidator(Receiver next)
Create an AttributeValidator

Method Summary

void	attribute(NodeName nameCode, SimpleType typeCode, CharSequence value, int locationId, int properties) Handle an attribute
void	characters(CharSequence chars, int locationId, int properties) Handle character data appearing as a child of the element being validated
SimpleType	getMostRecentAttributeType() Get the SimpleType used for validating the most recent attribute, if any
protected void	noCharactersWhenNil(int locationId)
protected SchemaType	processWildcardTerm(Wildcard card, int nameCode, int locationId) Process a wildcard term found in complex content or "all" content groups.
void	setAttributeGroup(AttributeGroupDecl attributeGroup) Identify the set of attributes permitted by the complex type being validated.
void	startContent() Notify the start of the content, that is, the completion of all attributes and namespaces.
void	startElement(NodeName nameCode, SchemaType typeCode, int locationId, int properties) Handle the start tag for a child element of the element being validated

Methods inherited from class com.saxonica.validate.ContentValidator

endDocument, getAnnotation, getChildValidator, getConstraintChecker, getContainingElement, getContainingElementLocationId, getContainingElementName, getElementDeclaration, getNamespaceResolver, getNillability, getSchemaType, getStartTagBuffer, isNil, makeValidator, makeValidatorForType, setAnnotation, setConstraintChecker, setContainingElement, setElementDeclaration, setNillability, setStartTagBuffer, setXSIType

Methods inherited from class com.saxonica.validate.ValidatingFilter

append, getErrorCode, getInvalidity, isInvalid, reportIfInvalid, reportValidationError, setErrorCode, setInvalidity, usesTypeAnnotations

Methods inherited from class net.sf.saxon.event.ProxyReceiver

close, comment, endElement, getNamePool, getUnderlyingReceiver, namespace, open, processingInstruction, setPipelineConfiguration, setSystemId, setUnderlyingReceiver, setUnparsedEntity, startDocument

Methods inherited from class net.sf.saxon.event.SequenceReceiver

append, getConfiguration, getPipelineConfiguration, getSystemId

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AttributeValidator

public AttributeValidator(Receiver next)

Create an AttributeValidator

Parameters:

next - the next receiver in the pipeline

Method Detail

setAttributeGroup

public void setAttributeGroup(AttributeGroupDecl attributeGroup)
                       throws ValidationException

Identify the set of attributes permitted by the complex type being validated. This is called during initialization of the AttributeValidator. It is not called if the type is a simple type; in such cases any attribute is an error, except for the xsi: attributes permitted on all elements.

Parameters:

attributeGroup - the set of attributes declared for this complex type

Throws:

ValidationException - if an unresolved reference is found

attribute

public void attribute(NodeName nameCode,
                      SimpleType typeCode,
                      CharSequence value,
                      int locationId,
                      int properties)
               throws XPathException

Handle an attribute

Specified by:

attribute in interface Receiver

Overrides:

attribute in class ProxyReceiver

Parameters:

nameCode - integer identifying the name of the attribute

typeCode - integer identifying the type annotation (ignored)

value - the value of the attribute

properties - additional properties 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:

XPathException - On any failure to write the attribute

getMostRecentAttributeType

public SimpleType getMostRecentAttributeType()

Get the SimpleType used for validating the most recent attribute, if any

Returns:

the SimpleType of the most recent attribute

startElement

public void startElement(NodeName nameCode,
                         SchemaType typeCode,
                         int locationId,
                         int properties)
                  throws XPathException

Handle the start tag for a child element of the element being validated

Specified by:

startElement in interface Receiver

Overrides:

startElement in class ContentValidator

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.

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.

properties - properties of the element node

Throws:

XPathException - if an error occurs

startContent

public final void startContent()
                        throws XPathException

Notify the start of the content, that is, the completion of all attributes and namespaces. The ValidationStack class is responsible for detecting this event and calling this method. Note that this event is reported for every element even if it has no attributes, no namespaces, and no content.

Specified by:

startContent in interface Receiver

Overrides:

startContent in class ProxyReceiver

Throws:

XPathException - if an error occurs

characters

public void characters(CharSequence chars,
                       int locationId,
                       int properties)
                throws XPathException

Handle character data appearing as a child of the element being validated

Specified by:

characters in interface Receiver

Overrides:

characters in class ProxyReceiver

Parameters:

chars - The character content

properties - Additional properties

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 - If this element does not allow character data

noCharactersWhenNil

protected void noCharactersWhenNil(int locationId)
                            throws XPathException

Throws:

XPathException

processWildcardTerm

protected SchemaType processWildcardTerm(Wildcard card,
                                         int nameCode,
                                         int locationId)
                                  throws XPathException

Process a wildcard term found in complex content or "all" content groups. This method is called when the validator is processing a child element of the relevant group and has established that it matches a wildcard term. The purpose of the method is (a) to determine whether the "processContents=strict" condition is satisfied (that is, there must be a matching global element declaration), and (b) to allocate a childValidator for the child element.

Parameters:

card - the Wildcard that has been matched

nameCode - the name of the child element

locationId - the location of the child element

Returns:

the type annotation to be used for the child element

Throws:

XPathException - if the content is invalid