com.icl.saxon.style
Class SAXONHandler

java.lang.Object
  com.icl.saxon.om.AbstractNode
      com.icl.saxon.tree.NodeImpl
          com.icl.saxon.tree.ElementImpl
              com.icl.saxon.tree.ElementWithAttributes
                  com.icl.saxon.style.StyleElement
                      com.icl.saxon.style.XSLTemplate
                          com.icl.saxon.style.SAXONHandler

All Implemented Interfaces:

NodeHandler, NodeInfo, javax.xml.transform.dom.DOMLocator, javax.xml.transform.Source, javax.xml.transform.SourceLocator, org.w3c.dom.Element, org.w3c.dom.NamedNodeMap, org.w3c.dom.Node, org.xml.sax.Locator

public class SAXONHandler
extends XSLTemplate

A saxon:handler element in the style sheet: defines a Java nodehandler that can be used to process a node in place of an XSLT template

Field Summary

protected int

sequence

Fields inherited from class com.icl.saxon.style.XSLTemplate

match, modeNameCode, needsStackFrame, priority, prioritySpecified, procedure, templateFingerprint

Fields inherited from class com.icl.saxon.style.StyleElement

attributeSets, extensionNamespaces, REPORT_ALWAYS, REPORT_IF_INSTANTIATED, REPORT_UNLESS_FORWARDS_COMPATIBLE, reportingCircumstances, staticContext, validationError, version

Fields inherited from class com.icl.saxon.tree.ElementWithAttributes

attributeList, namespaceList

Fields inherited from class com.icl.saxon.tree.ElementImpl

nameCode, root

Fields inherited from class com.icl.saxon.tree.NodeImpl

emptyArray, index, parent

Fields inherited from class com.icl.saxon.om.AbstractNode

NODE_LETTER

Fields inherited from interface org.w3c.dom.Node

ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE

Fields inherited from interface com.icl.saxon.om.NodeInfo

ATTRIBUTE, COMMENT, ELEMENT, NAMESPACE, NODE, NONE, NUMBER_OF_TYPES, PI, ROOT, TEXT

Constructor Summary

SAXONHandler()

Method Summary

void	addChild(NodeImpl node, int index) Add a child node to this node.
void	checkUnknownAttribute(int nc) Check whether an unknown attribute is permitted.
void	compact(int size) Compact the space used by this node
void	copyStringValue(Outputter out) Copy the string-value of this node to a given outputter
void	dropChildren() Drop a branch of the tree.
AxisEnumeration	enumerateChildren(NodeTest test) Get an enumeration of the children of this node
void	expand(Context context) Invoke the node handler.
org.w3c.dom.NodeList	getChildNodes() Return a NodeList that contains all children of this node.
org.w3c.dom.Node	getFirstChild() Get the first child node of the element
org.w3c.dom.Node	getLastChild() Get the last child node of the element
java.lang.String	getNodeValue() Get the node value as defined in the DOM.
protected NodeImpl	getNthChild(int n) Get the nth child node of the element (numbering from 0)
protected long	getSequenceNumber() Get the node sequence number (in document order).
java.lang.String	getStringValue() Return the string-value of the node, that is, the concatenation of the character content of all descendent elements and text nodes.
boolean	hasChildNodes() Determine if the node has any children.
protected NodeHandler	makeHandler(java.lang.String className) Load a named node handler and check it is OK.
void	preprocess() Preprocess: this registers the node handler with the controller
void	process(Context context) Process saxon:handler element.
void	removeChild(int index) Remove node at given index.
void	renumberChildren() Renumber the children of a given parent node.
void	useChildrenArray(NodeImpl[] array) Supply an array to be used for the array of children.
void	validate() Check that the element is valid.

Methods inherited from class com.icl.saxon.style.XSLTemplate

bindVariable, getMinImportPrecedence, getProcedure, getTemplateFingerprint, mayContainTemplateBody, needsStackFrame, prepareAttributes, start, traceExpand

Methods inherited from class com.icl.saxon.style.StyleElement

checkEmpty, checkNotTopLevel, checkTopLevel, checkWithinTemplate, compileError, compileError, definesExcludedNamespace, definesExtensionElement, doesPostProcessing, fallbackProcessing, findAttributeSets, forwardsCompatibleModeIsEnabled, getContainingStyleSheet, getPrecedence, getPreparedStyleSheet, getPrincipalStyleSheet, getStandardNames, getStyleSheetFunction, getVariableBinding, getVariableNames, getVersion, handleSortKeys, isExcludedNamespace, isExtensionNamespace, isInstruction, isTopLevel, makeAttributeValueTemplate, makeExpression, makePattern, processAllAttributes, processAttributes, processAttributeSets, processChildren, processExcludedNamespaces, processExtensionElementAttribute, processVersionAttribute, reportAbsence, setValidationError, styleError, styleError, substituteFor, validateChildren, validateSubtree

Methods inherited from class com.icl.saxon.tree.ElementWithAttributes

addNamespaceNodes, copy, getAttribute, getAttributeList, getAttributeNode, getAttributeNodeNS, getAttributeNS, getAttributes, getAttributeValue, getAttributeValue, getAttributeValue, getLength, getNamedItem, getNamedItemNS, getNamespaceCodes, getPrefixForURI, getURICodeForPrefix, hasAttribute, hasAttributeNS, hasAttributes, initialise, item, outputNamespaceNodes, removeAttribute, removeAttributeNode, removeAttributeNS, removeNamedItem, removeNamedItemNS, setAttribute, setAttributeNode, setAttributeNodeNS, setAttributeNS, setNamedItem, setNamedItemNS, setNamespaceDeclarations

Methods inherited from class com.icl.saxon.tree.ElementImpl

copy, generateId, getBaseURI, getDocumentRoot, getLineNumber, getNameCode, getNodeType, getSystemId, makeNameCode, setLineNumber, setNameCode, setSystemId

Methods inherited from class com.icl.saxon.tree.NodeImpl

compareOrder, getDisplayName, getDocumentElement, getEnumeration, getFingerprint, getLocalName, getNamePool, getNextInDocument, getNextSibling, getOriginatingNode, getParent, getPrefix, getPreviousInDocument, getPreviousSibling, getURI, isSameNodeInfo, removeNode

Methods inherited from class com.icl.saxon.om.AbstractNode

appendChild, appendData, cloneNode, compareDocumentPosition, createAttribute, createAttributeNS, createCDATASection, createComment, createDocumentFragment, createElement, createElementNS, createEntityReference, createProcessingInstruction, createTextNode, deleteData, disallowUpdate, getColumnNumber, getData, getDoctype, getElementById, getElementsByTagName, getElementsByTagNameNS, getFeature, getImplementation, getName, getNamespaceURI, getNodeName, getOwnerDocument, getOwnerElement, getParentNode, getPublicId, getSchemaTypeInfo, getSpecified, getTagName, getTextContent, getUserData, getValue, getWholeText, importNode, insertBefore, insertData, isDefaultNamespace, isElementContentWhitespace, isEqualNode, isId, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, replaceData, replaceWholeText, setData, setIdAttribute, setIdAttributeNode, setIdAttributeNS, setNodeValue, setPrefix, setTextContent, setUserData, setValue, splitText, substringData, supports

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.xml.sax.Locator

getColumnNumber, getLineNumber, getPublicId, getSystemId

Methods inherited from interface org.w3c.dom.Element

getElementsByTagName, getElementsByTagNameNS, getSchemaTypeInfo, getTagName, setIdAttribute, setIdAttributeNode, setIdAttributeNS

Methods inherited from interface org.w3c.dom.Node

appendChild, cloneNode, compareDocumentPosition, getBaseURI, getChildNodes, getFeature, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTextContent, getUserData, hasChildNodes, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, setNodeValue, setPrefix, setTextContent, setUserData

Field Detail

sequence

protected int sequence

Constructor Detail

SAXONHandler

public SAXONHandler()

Method Detail

checkUnknownAttribute

public void checkUnknownAttribute(int nc)
                           throws javax.xml.transform.TransformerConfigurationException

Description copied from class: StyleElement

Check whether an unknown attribute is permitted.

Overrides:

checkUnknownAttribute in class StyleElement

Parameters:

nc - The name code of the attribute name

Throws:

javax.xml.transform.TransformerConfigurationException

validate

public void validate()
              throws javax.xml.transform.TransformerConfigurationException

Description copied from class: StyleElement

Check that the element is valid. This is called once for each element, after the entire tree has been built. As well as validation, it can perform first-time initialisation. The default implementation does nothing; it is normally overriden in subclasses.

Overrides:

validate in class XSLTemplate

Throws:

javax.xml.transform.TransformerConfigurationException

preprocess

public void preprocess()
                throws javax.xml.transform.TransformerConfigurationException

Preprocess: this registers the node handler with the controller

Overrides:

preprocess in class XSLTemplate

Throws:

javax.xml.transform.TransformerConfigurationException

process

public void process(Context context)
             throws javax.xml.transform.TransformerException

Process saxon:handler element. This is called while all the top-level nodes are being processed in order, so it does nothing.

Overrides:

process in class XSLTemplate

Parameters:

context - The context in the source XML document, giving access to the current node, the current variables, etc.

Throws:

javax.xml.transform.TransformerException

expand

public void expand(Context context)
            throws javax.xml.transform.TransformerException

Invoke the node handler. Called directly only when doing XSLCallTemplate

Overrides:

expand in class XSLTemplate

Throws:

javax.xml.transform.TransformerException

makeHandler

protected NodeHandler makeHandler(java.lang.String className)
                           throws javax.xml.transform.TransformerConfigurationException

Load a named node handler and check it is OK.

Throws:

javax.xml.transform.TransformerConfigurationException

getSequenceNumber

protected final long getSequenceNumber()

Get the node sequence number (in document order). Sequence numbers are monotonic but not consecutive. In the current implementation, parent nodes (elements and roots) have a zero least-significant word, while namespaces, attributes, text nodes, comments, and PIs have the top word the same as their owner and the bottom half reflecting their relative position.

Overrides:

getSequenceNumber in class NodeImpl

hasChildNodes

public final boolean hasChildNodes()

Determine if the node has any children.

Specified by:

hasChildNodes in interface NodeInfo

Specified by:

hasChildNodes in interface org.w3c.dom.Node

Overrides:

hasChildNodes in class NodeImpl

Returns:

true if the node has any children, false if the node has no children.

enumerateChildren

public final AxisEnumeration enumerateChildren(NodeTest test)

Get an enumeration of the children of this node

getFirstChild

public final org.w3c.dom.Node getFirstChild()

Get the first child node of the element

Specified by:

getFirstChild in interface org.w3c.dom.Node

Overrides:

getFirstChild in class NodeImpl

Returns:

the first child node of the required type, or null if there are no children

getLastChild

public final org.w3c.dom.Node getLastChild()

Get the last child node of the element

Specified by:

getLastChild in interface org.w3c.dom.Node

Overrides:

getLastChild in class NodeImpl

Returns:

the last child of the element, or null if there are no children

getChildNodes

public final org.w3c.dom.NodeList getChildNodes()

Return a NodeList that contains all children of this node. If there are no children, this is a NodeList containing no nodes.

Specified by:

getChildNodes in interface org.w3c.dom.Node

Overrides:

getChildNodes in class NodeImpl

getNthChild

protected final NodeImpl getNthChild(int n)

Get the nth child node of the element (numbering from 0)

Returns:

the last child of the element, or null if there is no n'th child

getStringValue

public java.lang.String getStringValue()

Return the string-value of the node, that is, the concatenation of the character content of all descendent elements and text nodes.

Returns:

the accumulated character content of the element, including descendant elements.

copyStringValue

public void copyStringValue(Outputter out)
                     throws javax.xml.transform.TransformerException

Copy the string-value of this node to a given outputter

Specified by:

copyStringValue in interface NodeInfo

Overrides:

copyStringValue in class AbstractNode

Throws:

javax.xml.transform.TransformerException

useChildrenArray

public void useChildrenArray(NodeImpl[] array)

Supply an array to be used for the array of children. For system use only.

addChild

public void addChild(NodeImpl node,
                     int index)

Add a child node to this node. For system use only. Note: normalizing adjacent text nodes is the responsibility of the caller.

removeChild

public void removeChild(int index)

Remove node at given index. Will always be followed by a renumberChildren().

renumberChildren

public void renumberChildren()

Renumber the children of a given parent node. For system use only

dropChildren

public void dropChildren()

Drop a branch of the tree. The target element remains in the tree, but its children are disconnected from the parent. Unless there are other references to the children (e.g. in a variable) they will be deleted from memory next time the garbage collector comes round.

compact

public void compact(int size)

Compact the space used by this node

getNodeValue

public java.lang.String getNodeValue()

Get the node value as defined in the DOM. This is not the same as the XPath string-value.

Specified by:

getNodeValue in interface org.w3c.dom.Node

Overrides:

getNodeValue in class AbstractNode