Package net.sf.saxon.style

Class SaxonAssign

java.lang.Object

net.sf.saxon.tree.NodeImpl

net.sf.saxon.tree.ParentNodeImpl

net.sf.saxon.tree.ElementImpl

net.sf.saxon.tree.ElementWithAttributes

net.sf.saxon.style.StyleElement

net.sf.saxon.style.XSLGeneralVariable

net.sf.saxon.style.SaxonAssign

All Implemented Interfaces:

javax.xml.transform.Source, javax.xml.transform.SourceLocator, LocationProvider, SaxonLocator, Container, FingerprintedNode, Item, NodeInfo, ValueRepresentation, InstructionInfo, org.xml.sax.Locator

public class SaxonAssign
extends XSLGeneralVariable

saxon:assign element in stylesheet. The saxon:assign element has mandatory attribute name and optional attribute expr. It also allows xsl:extension-element-prefixes etc.

Field Summary

Fields inherited from class net.sf.saxon.tree.ElementImpl

nameCode, root

Fields inherited from class net.sf.saxon.tree.ElementWithAttributes

attributeList, namespaceList

Fields inherited from class net.sf.saxon.tree.NodeImpl

index, NODE_LETTER, parent

Fields inherited from interface net.sf.saxon.om.NodeInfo

ALL_NAMESPACES, EMPTY_NAMESPACE_LIST, IS_DTD_TYPE, IS_NILLED, LOCAL_NAMESPACES, NO_NAMESPACES

Fields inherited from class net.sf.saxon.tree.ParentNodeImpl

sequence

Fields inherited from class net.sf.saxon.style.StyleElement

defaultCollationName, defaultXPathNamespace, extensionNamespaces, REPORT_ALWAYS, REPORT_IF_INSTANTIATED, REPORT_UNLESS_FALLBACK_AVAILABLE, REPORT_UNLESS_FORWARDS_COMPATIBLE, reportingCircumstances, staticContext, validationError, version

Fields inherited from interface net.sf.saxon.om.ValueRepresentation

EMPTY_VALUE_ARRAY

Fields inherited from class net.sf.saxon.style.XSLGeneralVariable

assignable, constantText, global, implicitlyRequiredParam, redundant, requiredParam, requiredType, select, slotManager, tunnel

Constructor Summary

Constructors

Constructor	Description
SaxonAssign()

Method Summary

Modifier and Type	Method	Description
protected boolean	allowsAsAttribute()
Expression	compile(Executable exec)	Compile the instruction on the stylesheet tree into an executable instruction for use at run-time.
boolean	isAssignable()	Test whether it is permitted to assign to the variable using the saxon:assign extension element.
boolean	isInstruction()	Determine whether this node is an instruction.
void	validate()	Check that the stylesheet element is valid.

Methods inherited from class net.sf.saxon.tree.ElementImpl

generateId, getBaseURI, getDocumentRoot, getNameCode, getNodeKind, getRoot, getSystemId, setNameCode, setSystemId

Methods inherited from class net.sf.saxon.tree.ElementWithAttributes

copy, getAttributeList, getAttributeValue, getDeclaredNamespaces, getInScopeNamespaceCodes, getPrefixForURI, getURICodeForPrefix, getURIForPrefix, initialise, iteratePrefixes, sendNamespaceDeclarations, setNamespaceDeclarations

Methods inherited from interface net.sf.saxon.trace.InstructionInfo

getSystemId

Methods inherited from interface org.xml.sax.Locator

getColumnNumber, getPublicId

Methods inherited from class net.sf.saxon.tree.NodeImpl

atomize, compareOrder, equals, getColumnNumber, getConfiguration, getDisplayName, getDocumentNumber, getFingerprint, getLocalPart, getNamePool, getNextInDocument, getNextSibling, getParent, getPrefix, getPreviousInDocument, getPreviousSibling, getPublicId, getTypeAnnotation, getTypedValue, getURI, hashCode, isSameNodeInfo, iterateAxis, iterateAxis

Methods inherited from class java.lang.Object

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

Methods inherited from class net.sf.saxon.tree.ParentNodeImpl

addChild, compact, enumerateChildren, getFirstChild, getLastChild, getNthChild, getSequenceNumber, getStringValue, getStringValueCS, hasChildNodes, useChildrenArray

Methods inherited from interface javax.xml.transform.Source

isEmpty

Methods inherited from interface javax.xml.transform.SourceLocator

getColumnNumber, getPublicId

Methods inherited from class net.sf.saxon.style.StyleElement

allocateLocationId, allocateSlots, backwardsCompatibleModeIsEnabled, bindVariable, checkEmpty, checkSortComesFirst, checkTopLevel, checkUnknownAttribute, checkWithinTemplate, compileError, compileError, compileError, compileSequenceConstructor, compileWarning, definesExcludedNamespace, definesExtensionElement, fallbackProcessing, fixupReferences, forwardsCompatibleModeIsEnabled, getAttributeSets, getAttributeValue, getCommonChildItemType, getContainingSlotManager, getContainingStylesheet, getDefaultCollationName, getDefaultXPathNamespace, getExecutable, getHostLanguage, getLastChildInstruction, getLineNumber, getLineNumber, getLocationProvider, getNamespaceResolver, getObjectFingerprint, getObjectNameCode, getPrecedence, getPreparedStylesheet, getPrincipalStylesheet, getProperties, getProperty, getSchemaType, getStaticContext, getStylesheetFunction, getSystemId, getTargetNamePool, getTypeAnnotation, getVersion, getWithParamInstructions, isExcludedNamespace, isExplaining, isExtensionNamespace, isPermittedChild, issueWarning, issueWarning, isTopLevel, makeAttributeValueTemplate, makeExpression, makeNameCode, makeNamespaceContext, makePattern, makeSequenceType, makeSortKeys, makeTraceInstruction, markTailCalls, mayContainFallback, postValidate, processAllAttributes, processAttributes, processDefaultCollationAttribute, processDefaultXPathNamespaceAttribute, processExcludedNamespaces, processExtensionElementAttribute, processVersionAttribute, replaceSubExpression, reportAbsence, setLineNumber, setObjectNameCode, setValidationError, substituteFor, typeCheck, typeCheck, undeclaredNamespaceError, validateChildren, validateSubtree

Methods inherited from class net.sf.saxon.style.XSLGeneralVariable

allowsRequired, allowsTunnelAttribute, allowsValue, checkAgainstRequiredType, getConstructType, getReturnedItemType, getVariableFingerprint, getVariableName, initializeInstruction, isGlobal, isRequiredParam, isTunnelParam, mayContainSequenceConstructor, prepareAttributes, setRedundant, setReferenceCount

Constructor Detail

SaxonAssign

public SaxonAssign()

Method Detail

isInstruction

public boolean isInstruction()

Determine whether this node is an instruction.

Overrides:

isInstruction in class StyleElement

Returns:

true - it is an instruction

isAssignable

public boolean isAssignable()

Description copied from class: XSLGeneralVariable

Test whether it is permitted to assign to the variable using the saxon:assign extension element. This will only be true if the extra attribute saxon:assignable="yes" is present.

Overrides:

isAssignable in class XSLGeneralVariable

allowsAsAttribute

protected boolean allowsAsAttribute()

Overrides:

allowsAsAttribute in class XSLGeneralVariable

validate

public void validate()
              throws XPathException

Description copied from class: StyleElement

Check that the stylesheet 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 XSLGeneralVariable

Throws:

XPathException

compile

public Expression compile(Executable exec)
                   throws XPathException

Description copied from class: StyleElement

Compile the instruction on the stylesheet tree into an executable instruction for use at run-time.

Specified by:

compile in class StyleElement

Returns:

either a ComputedExpression, or null. The value null is returned when compiling an instruction that returns a no-op, or when compiling a top-level object such as an xsl:template that compiles into something other than an instruction.

Throws:

XPathException