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java.lang.Objectnet.sf.saxon.expr.ComputedExpression
net.sf.saxon.instruct.Instruction
net.sf.saxon.instruct.SimpleNodeConstructor
net.sf.saxon.instruct.ValueOf
An xsl:value-of element in the stylesheet.
The xsl:value-of element takes attributes:
Field Summary |
Fields inherited from class net.sf.saxon.instruct.SimpleNodeConstructor |
select |
Fields inherited from class net.sf.saxon.expr.ComputedExpression |
locationId, staticProperties |
Fields inherited from interface net.sf.saxon.expr.Expression |
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD |
Constructor Summary | |
ValueOf(Expression select,
boolean disable,
boolean noNodeIfEmpty)
|
Method Summary | |
void |
checkPermittedContents(SchemaType parentType,
StaticContext env,
boolean whole)
Check statically that the results of the expression are capable of constructing the content of a given schema type. |
int |
computeCardinality()
Get the cardinality of the sequence returned by evaluating this instruction |
Expression |
convertToStringJoin(StaticContext env)
Convert this value-of instruction to an expression that delivers the string-value of the resulting text node. |
void |
display(int level,
java.io.PrintStream out,
Configuration config)
Display this instruction as an expression, for diagnostics |
Item |
evaluateItem(XPathContext context)
Evaluate this expression, returning the resulting text node to the caller |
int |
getInstructionNameCode()
Get the name of this instruction for diagnostic and tracing purposes |
ItemType |
getItemType(TypeHierarchy th)
Get the item type of the items returned by evaluating this instruction |
boolean |
isNumberingInstruction()
Determine whether this is really an xsl:number instruction |
void |
localTypeCheck(StaticContext env,
ItemType contextItemType)
|
TailCall |
processLeavingTail(XPathContext context)
Process this instruction, sending the resulting text node to the current output destination |
protected void |
promoteInst(PromotionOffer offer)
Offer promotion for subexpressions. |
void |
setIsNumberingInstruction()
Indicate that this is really an xsl:nunber instruction |
Methods inherited from class net.sf.saxon.instruct.SimpleNodeConstructor |
checkContent, computeSpecialProperties, createsNewNodes, evaluateNameCode, expandChildren, getSelect, iterate, iterateSubExpressions, optimize, replaceSubExpression, setSelect, simplify, typeCheck |
Methods inherited from class net.sf.saxon.instruct.Instruction |
appendItem, assembleParams, assembleTunnelParams, dynamicError, evaluateAsString, getImplementationMethod, getInstructionInfo, getSourceLocator, isXSLT, process, promote |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface javax.xml.transform.SourceLocator |
getColumnNumber, getLineNumber, getPublicId, getSystemId |
Constructor Detail |
public ValueOf(Expression select, boolean disable, boolean noNodeIfEmpty)
Method Detail |
public void setIsNumberingInstruction()
public boolean isNumberingInstruction()
public int getInstructionNameCode()
getInstructionNameCode
in class Instruction
protected void promoteInst(PromotionOffer offer) throws XPathException
promoteInst
in class SimpleNodeConstructor
offer
- details of the offer, for example the offer to move
expressions that don't depend on the context to an outer level in
the containing expression
XPathException
- if any error is detectedpublic ItemType getItemType(TypeHierarchy th)
Instruction
getItemType
in interface Expression
getItemType
in class Instruction
th
-
public int computeCardinality()
Instruction
computeCardinality
in class Instruction
public void localTypeCheck(StaticContext env, ItemType contextItemType)
localTypeCheck
in class SimpleNodeConstructor
public void checkPermittedContents(SchemaType parentType, StaticContext env, boolean whole) throws XPathException
checkPermittedContents
in interface Expression
checkPermittedContents
in class ComputedExpression
parentType
- The schema typeenv
- the static contextwhole
-
XPathException
- if the expression doesn't match the required content typepublic Expression convertToStringJoin(StaticContext env)
public TailCall processLeavingTail(XPathContext context) throws XPathException
processLeavingTail
in interface TailCallReturner
processLeavingTail
in class Instruction
context
-
XPathException
public Item evaluateItem(XPathContext context) throws XPathException
evaluateItem
in interface Expression
evaluateItem
in class SimpleNodeConstructor
context
-
XPathException
public void display(int level, java.io.PrintStream out, Configuration config)
display
in interface Expression
display
in class SimpleNodeConstructor
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