Package net.sf.saxon.style
Class XSLGeneralVariable
- java.lang.Object
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- net.sf.saxon.tree.NodeImpl
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- net.sf.saxon.tree.ParentNodeImpl
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- net.sf.saxon.tree.ElementImpl
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- net.sf.saxon.tree.ElementWithAttributes
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- net.sf.saxon.style.StyleElement
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- net.sf.saxon.style.XSLGeneralVariable
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- All Implemented Interfaces:
javax.xml.transform.Source
,javax.xml.transform.SourceLocator
,LocationProvider
,SaxonLocator
,Container
,FingerprintedNode
,Item
,NodeInfo
,ValueRepresentation
,InstructionInfo
,org.xml.sax.Locator
- Direct Known Subclasses:
SaxonAssign
,SQLColumn
,XSLVariableDeclaration
,XSLWithParam
public abstract class XSLGeneralVariable extends StyleElement
This class defines common behaviour across xsl:variable, xsl:param, and xsl:with-param
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Field Summary
Fields Modifier and Type Field Description protected boolean
assignable
protected java.lang.String
constantText
protected boolean
global
protected boolean
implicitlyRequiredParam
protected boolean
redundant
protected boolean
requiredParam
protected SequenceType
requiredType
protected Expression
select
protected SlotManager
slotManager
protected boolean
tunnel
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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
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Fields inherited from class net.sf.saxon.tree.ElementWithAttributes
attributeList, namespaceList
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Fields inherited from class net.sf.saxon.tree.ElementImpl
nameCode, root
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Fields inherited from class net.sf.saxon.tree.ParentNodeImpl
sequence
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Fields inherited from class net.sf.saxon.tree.NodeImpl
index, NODE_LETTER, parent
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Fields inherited from interface net.sf.saxon.om.NodeInfo
ALL_NAMESPACES, EMPTY_NAMESPACE_LIST, IS_DTD_TYPE, IS_NILLED, LOCAL_NAMESPACES, NO_NAMESPACES
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Fields inherited from interface net.sf.saxon.om.ValueRepresentation
EMPTY_VALUE_ARRAY
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Constructor Summary
Constructors Constructor Description XSLGeneralVariable()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected boolean
allowsAsAttribute()
protected boolean
allowsRequired()
protected boolean
allowsTunnelAttribute()
protected boolean
allowsValue()
protected void
checkAgainstRequiredType(SequenceType required)
Check the supplied select expression against the required type.int
getConstructType()
Get the type of construct.protected ItemType
getReturnedItemType()
Determine the type of item returned by this instruction (only relevant if it is an instruction).int
getVariableFingerprint()
Get the fingerprint of the variable namejava.lang.String
getVariableName()
Get the display name of the variable.protected void
initializeInstruction(Executable exec, GeneralVariable var)
Initialize - common code called from the compile() method of all subclassesboolean
isAssignable()
Test whether it is permitted to assign to the variable using the saxon:assign extension element.boolean
isGlobal()
boolean
isRequiredParam()
boolean
isTunnelParam()
boolean
mayContainSequenceConstructor()
Determine whether this type of element is allowed to contain a template-bodyvoid
prepareAttributes()
Set the attribute list for the element.void
setRedundant()
Mark this global variable as redundant.protected void
setReferenceCount(GeneralVariable var)
void
validate()
Check that the stylesheet element is valid.-
Methods inherited from class net.sf.saxon.style.StyleElement
allocateLocationId, allocateSlots, backwardsCompatibleModeIsEnabled, bindVariable, checkEmpty, checkSortComesFirst, checkTopLevel, checkUnknownAttribute, checkWithinTemplate, compile, 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, isInstruction, 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
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Methods inherited from class net.sf.saxon.tree.ElementWithAttributes
copy, getAttributeList, getAttributeValue, getDeclaredNamespaces, getInScopeNamespaceCodes, getPrefixForURI, getURICodeForPrefix, getURIForPrefix, initialise, iteratePrefixes, sendNamespaceDeclarations, setNamespaceDeclarations
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Methods inherited from class net.sf.saxon.tree.ElementImpl
generateId, getBaseURI, getDocumentRoot, getNameCode, getNodeKind, getRoot, getSystemId, setNameCode, setSystemId
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Methods inherited from class net.sf.saxon.tree.ParentNodeImpl
addChild, compact, enumerateChildren, getFirstChild, getLastChild, getNthChild, getSequenceNumber, getStringValue, getStringValueCS, hasChildNodes, useChildrenArray
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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
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface net.sf.saxon.trace.InstructionInfo
getSystemId
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Field Detail
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select
protected Expression select
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requiredType
protected SequenceType requiredType
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constantText
protected java.lang.String constantText
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global
protected boolean global
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slotManager
protected SlotManager slotManager
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assignable
protected boolean assignable
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redundant
protected boolean redundant
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requiredParam
protected boolean requiredParam
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implicitlyRequiredParam
protected boolean implicitlyRequiredParam
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tunnel
protected boolean tunnel
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Method Detail
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getReturnedItemType
protected ItemType getReturnedItemType()
Determine the type of item returned by this instruction (only relevant if it is an instruction).- Overrides:
getReturnedItemType
in classStyleElement
- Returns:
- the item type returned. This is null for a variable: we are not interested in the type of the variable, but in what the xsl:variable constributes to the result of the sequence constructor it is part of.
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mayContainSequenceConstructor
public boolean mayContainSequenceConstructor()
Determine whether this type of element is allowed to contain a template-body- Overrides:
mayContainSequenceConstructor
in classStyleElement
- Returns:
- true: yes, it may contain a template-body
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allowsAsAttribute
protected boolean allowsAsAttribute()
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allowsTunnelAttribute
protected boolean allowsTunnelAttribute()
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allowsValue
protected boolean allowsValue()
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allowsRequired
protected boolean allowsRequired()
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isAssignable
public boolean isAssignable()
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.
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isTunnelParam
public boolean isTunnelParam()
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isRequiredParam
public boolean isRequiredParam()
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isGlobal
public boolean isGlobal()
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getVariableName
public java.lang.String getVariableName()
Get the display name of the variable.
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setRedundant
public void setRedundant()
Mark this global variable as redundant. This is done before prepareAttributes is called.
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getVariableFingerprint
public int getVariableFingerprint()
Get the fingerprint of the variable name
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prepareAttributes
public void prepareAttributes() throws XPathException
Description copied from class:StyleElement
Set the attribute list for the element. This is called to process the attributes (note the distinction from processAttributes in the superclass). Must be supplied in a subclass- Specified by:
prepareAttributes
in classStyleElement
- Throws:
XPathException
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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 classStyleElement
- Throws:
XPathException
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checkAgainstRequiredType
protected void checkAgainstRequiredType(SequenceType required) throws XPathException
Check the supplied select expression against the required type.- Parameters:
required
- The type required by the variable declaration, or in the case of xsl:with-param, the signature of the called template- Throws:
XPathException
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initializeInstruction
protected void initializeInstruction(Executable exec, GeneralVariable var) throws XPathException
Initialize - common code called from the compile() method of all subclasses- Throws:
XPathException
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setReferenceCount
protected void setReferenceCount(GeneralVariable var)
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getConstructType
public int getConstructType()
Get the type of construct. This will be a constant in classLocation
. This method is part of theInstructionInfo
interface- Specified by:
getConstructType
in interfaceInstructionInfo
- Overrides:
getConstructType
in classStyleElement
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