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java.lang.Objectnet.sf.saxon.event.SequenceReceiver
net.sf.saxon.event.ProxyReceiver
net.sf.saxon.event.StartTagBuffer
public class StartTagBuffer
StartTagBuffer is a ProxyReceiver that buffers attributes and namespace events within a start tag. It maintains details of the namespace context, and a full set of attribute information, on behalf of other filters that need access to namespace information or need to process attributes in arbitrary order.
StartTagBuffer also implements namespace fixup (the process of creating namespace nodes|bindings on behalf of constructed element and attribute nodes). Although this would be done anyway, further down the pipeline, it has to be done early in the case of a validating pipeline, because the namespace bindings must be created before any namespace-sensitive attribute content is validated.
The StartTagBuffer also allows error conditions to be buffered. This is because the XSIAttributeHandler validates attributes such as xsi:type and xsi:nil before attempting to match its parent element against a particle of its containing type. It is possible that the parent element will match a wildcard particle with processContents="skip", in which case an invalid xsi:type or xsi:nil attribute is not an error.
| Field Summary | |
|---|---|
protected AttributeCollectionImpl |
bufferedAttributes
|
protected int |
elementLocationId
|
protected NodeName |
elementNameCode
|
protected int |
elementProperties
|
protected SchemaType |
elementTypeCode
|
protected NamespaceBinding[] |
namespaces
|
protected int |
namespacesSize
|
| 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 | |
|---|---|
StartTagBuffer(Receiver next)
|
|
| Method Summary | |
|---|---|
void |
attribute(NodeName attName,
SimpleType typeCode,
CharSequence value,
int locationId,
int properties)
Notify an attribute. |
protected void |
declareAllNamespaces()
Signal namespace events for all in-scope namespaces to the current receiver in the pipeline |
protected void |
declareNamespacesForStartElement()
|
void |
endDocument()
Notify the end of a document node |
void |
endElement()
endElement: Discard the namespaces declared locally on this element. |
AttributeCollection |
getAllAttributes()
Get all the attributes on the current element start tag |
String |
getAttribute(int nameCode)
Get the value of the current attribute with a given nameCode |
NamespaceBinding[] |
getLocalNamespaces()
Get the namespaces declared (or undeclared) at the current level |
String |
getURIForPrefix(String prefix,
boolean useDefault)
Get the namespace URI corresponding to a given prefix. |
boolean |
hasAttributes()
Determine if the current element has any attributes |
Iterator<String> |
iteratePrefixes()
Get an iterator over all the prefixes declared in this namespace context. |
void |
namespace(NamespaceBinding namespaceBinding,
int properties)
Notify a namespace. |
void |
setPipelineConfiguration(PipelineConfiguration pipe)
Set the pipeline configuration |
void |
startContent()
startContent: Add any namespace undeclarations needed to stop namespaces being inherited from parent elements |
void |
startDocument(int properties)
Start of a document node. |
void |
startElement(NodeName nameCode,
SchemaType typeCode,
int locationId,
int properties)
startElement |
protected void |
undeclareNamespacesForElement()
|
| Methods inherited from class net.sf.saxon.event.ProxyReceiver |
|---|
append, characters, close, comment, getNamePool, getUnderlyingReceiver, open, processingInstruction, setSystemId, setUnderlyingReceiver, setUnparsedEntity, usesTypeAnnotations |
| 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 |
| Field Detail |
|---|
protected NodeName elementNameCode
protected SchemaType elementTypeCode
protected int elementLocationId
protected int elementProperties
protected AttributeCollectionImpl bufferedAttributes
protected NamespaceBinding[] namespaces
protected int namespacesSize
| Constructor Detail |
|---|
public StartTagBuffer(Receiver next)
| Method Detail |
|---|
public void setPipelineConfiguration(PipelineConfiguration pipe)
setPipelineConfiguration in interface ReceiversetPipelineConfiguration in class ProxyReceiverpipe - the pipeline configuration
public void startDocument(int properties)
throws XPathException
startDocument in interface ReceiverstartDocument in class ProxyReceiverproperties - bit-significant integer indicating properties of the document node.
The definitions of the bits are in class ReceiverOptions
XPathException - if an error occurs
public void endDocument()
throws XPathException
endDocument in interface ReceiverendDocument in class ProxyReceiverXPathException - if an error occurs
public void startElement(NodeName nameCode,
SchemaType typeCode,
int locationId,
int properties)
throws XPathException
startElement in interface ReceiverstartElement in class ProxyReceivernameCode - 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
XPathException - if an error occurs
public void namespace(NamespaceBinding namespaceBinding,
int properties)
throws XPathException
ProxyReceiver
namespace in interface Receivernamespace in class ProxyReceivernamespaceBinding - the prefix/uri pair representing the namespace bindingproperties - any special properties to be passed on this call
XPathException - if an error occurs
public void attribute(NodeName attName,
SimpleType typeCode,
CharSequence value,
int locationId,
int properties)
throws XPathException
attribute in interface Receiverattribute in class ProxyReceiverattName - The name of the attribute, as held in the name pooltypeCode - The type of the attribute, as held in the name poolproperties - Bit significant value. The following bits are defined:
value - the string value of the attributelocationId - 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.
IllegalStateException: - attempt to output an attribute when there is no open element
start tag
XPathException - if an error occurs
public void startContent()
throws XPathException
startContent in interface ReceiverstartContent in class ProxyReceiverXPathException - if an error occurs
protected void declareNamespacesForStartElement()
throws XPathException
XPathExceptionpublic NamespaceBinding[] getLocalNamespaces()
protected void declareAllNamespaces()
throws XPathException
XPathException - if any downstream error occurs
public void endElement()
throws XPathException
endElement in interface ReceiverendElement in class ProxyReceiverXPathException - if an error occursprotected void undeclareNamespacesForElement()
public boolean hasAttributes()
public String getAttribute(int nameCode)
nameCode - the name of the required attribute
public AttributeCollection getAllAttributes()
public String getURIForPrefix(String prefix,
boolean useDefault)
getURIForPrefix in interface NamespaceResolverprefix - the namespace prefixuseDefault - true if the default namespace is to be used when the
prefix is ""
public Iterator<String> iteratePrefixes()
iteratePrefixes in interface NamespaceResolver
|
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