com.saxonica.validate

Class ValidationStack

java.lang.Object

net.sf.saxon.event.SequenceReceiver

net.sf.saxon.event.ProxyReceiver

com.saxonica.validate.ValidatingFilter

com.saxonica.validate.ValidationStack

All Implemented Interfaces:

Result, Receiver

public class ValidationStack
extends ValidatingFilter

This class manages the receivers that do element content validation. It maintains a stack of Validators, each of which does local element validation of the contents of a single element, adding a new validator to the stack to handle each layer of nesting.

Field Summary

Fields inherited from class com.saxonica.validate.ValidatingFilter

locallyInvalid

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

Constructors

Constructor and Description
ValidationStack(Receiver next, int initialValidationMode, SchemaType initialType) Create a validation stack

Method Summary

Methods

Modifier and Type	Method and Description
void	attribute(NodeName nameCode, SimpleType typeCode, CharSequence value, int locationId, int properties) Handle an attribute
void	characters(CharSequence chars, int locationId, int properties) Character data
void	endDocument() Notify the end of a document node
void	endElement() End of element
Map<SchemaComponent,Integer>	getCoverageStatistics() Get the statistics showing the usage of individual schema components during a validation episode
NodeName	getTopLevelElement() Get the name of the required top-level element (if any)
void	setInitialValidator(ContentValidator validator) Set the initial validator to be used for the outermost element
void	setIsNilled(boolean nilled) Indicate whether the current element is nilled
void	setKeepStatistics(boolean keep) Ask that statistics be maintained for the duration of the validation episode.
void	setPipelineConfiguration(PipelineConfiguration pipe) Set the pipeline configuration
void	setTopLevelElement(NodeName name) Set the name of the required top-level element (if any)
void	setUnparsedEntity(String name, String uri, String publicId) Set the URI for an unparsed entity in the document.
void	setXsiValidationErrors(List errors) Supply a list of errors found in attributes in the XSI namespace.
void	startContent() Notify the start of the content, that is, the completion of all attributes and namespaces.
void	startElement(NodeName elemName, SchemaType typeCode, int locationId, int properties) Process element start tag
void	testAssertions(NodeInfo root, UserComplexType type) Test whether all the assertions on a given complex type are true

Methods inherited from class com.saxonica.validate.ValidatingFilter

append, getConstraintChecker, getStartTagBuffer, getValidationContext, reportIfInvalid, reportValidationError, setConstraintChecker, setStartTagBuffer, setValidationContext, usesTypeAnnotations

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

close, comment, getNamePool, getUnderlyingReceiver, namespace, open, processingInstruction, setSystemId, setUnderlyingReceiver, 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

ValidationStack

public ValidationStack(Receiver next,
               int initialValidationMode,
               SchemaType initialType)

Create a validation stack

Parameters:

next - the destination of events after passing through validation

initialValidationMode - the initial validation mode, strict/lax

initialType - the initial type to validate against, if any

Method Detail

setPipelineConfiguration

public void setPipelineConfiguration(PipelineConfiguration pipe)

Description copied from interface: Receiver

Set the pipeline configuration

Specified by:

setPipelineConfiguration in interface Receiver

Overrides:

setPipelineConfiguration in class ProxyReceiver

Parameters:

pipe - the pipeline configuration

setTopLevelElement

public void setTopLevelElement(NodeName name)

Set the name of the required top-level element (if any)

Parameters:

name - the name of the element that must appear at the root of the subtree being validated

getTopLevelElement

public NodeName getTopLevelElement()

Get the name of the required top-level element (if any)

Returns:

the name of the element that must appear at the root of the subtree being validated, or null if none has been set

setUnparsedEntity

public void setUnparsedEntity(String name,
                     String uri,
                     String publicId)
                       throws XPathException

Set the URI for an unparsed entity in the document.

Specified by:

setUnparsedEntity in interface Receiver

Overrides:

setUnparsedEntity in class ProxyReceiver

Parameters:

name - The name of the unparsed entity

uri - The system identifier of the unparsed entity

publicId - The public identifier of the unparsed entity

Throws:

XPathException - if an error occurs

setIsNilled

public void setIsNilled(boolean nilled)

Indicate whether the current element is nilled

Parameters:

nilled - true if xsi:nil is set

setXsiValidationErrors

public void setXsiValidationErrors(List errors)

Supply a list of errors found in attributes in the XSI namespace. This is called immediately before calling startElement on the element containing these erroneous attributes

startElement

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

Process element start tag

Specified by:

startElement in interface Receiver

Overrides:

startElement in class ProxyReceiver

Parameters:

elemName - 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

setInitialValidator

public void setInitialValidator(ContentValidator validator)

Set the initial validator to be used for the outermost element

Parameters:

validator - the validator to be used for the outermost element being validated

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 pre-validation type annotation (typically untypedAtomic)

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

startContent

public final void startContent()
                        throws XPathException

Notify the start of the content, that is, the completion of all attributes and namespaces. Note that the initial receiver of output from XSLT instructions will not receive this event, it has to detect it itself. 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

Description copied from class: ProxyReceiver

Character data

Specified by:

characters in interface Receiver

Overrides:

characters in class ProxyReceiver

Parameters:

chars - The characters

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 - Bit significant value. The following bits are defined:

DISABLE_ESCAPING

Disable escaping for this text node

USE_CDATA

Output as a CDATA section

Throws:

XPathException - if an error occurs

endElement

public void endElement()
                throws XPathException

End of element

Specified by:

endElement in interface Receiver

Overrides:

endElement in class ProxyReceiver

Throws:

XPathException - if an error occurs

endDocument

public void endDocument()
                 throws XPathException

Notify the end of a document node

Specified by:

endDocument in interface Receiver

Overrides:

endDocument in class ProxyReceiver

Throws:

XPathException - if an error occurs

testAssertions

public void testAssertions(NodeInfo root,
                  UserComplexType type)
                    throws XPathException

Test whether all the assertions on a given complex type are true

Parameters:

root - the element whose assertions are to be tested

type - the type on which the assertions are defined

Throws:

ValidationException - if any of the assertions are not true

XPathException

setKeepStatistics

public void setKeepStatistics(boolean keep)

Ask that statistics be maintained for the duration of the validation episode. The statistics indicate how often particular schema components (currently, element declarations and types) have been used.

Parameters:

keep - true if statistics are to be kept, false if not

getCoverageStatistics

public Map<SchemaComponent,Integer> getCoverageStatistics()

Get the statistics showing the usage of individual schema components during a validation episode

Returns:

a table showing for each component that has been used, the number of times it has been used. If statistics are not being maintained, returns null.