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java.lang.Objectnet.sf.saxon.expr.Expression
net.sf.saxon.expr.instruct.Instruction
net.sf.saxon.expr.instruct.SimpleNodeConstructor
net.sf.saxon.expr.instruct.ProcessingInstruction
public class ProcessingInstruction
An xsl:processing-instruction element in the stylesheet, or a processing-instruction constructor in a query
| Field Summary |
|---|
| Fields inherited from class net.sf.saxon.expr.instruct.SimpleNodeConstructor |
|---|
select |
| Fields inherited from class net.sf.saxon.expr.Expression |
|---|
EFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, WATCH_METHOD |
| Constructor Summary | |
|---|---|
ProcessingInstruction(Expression name)
Create an xsl:processing-instruction instruction |
|
| Method Summary | |
|---|---|
protected String |
checkContent(String data,
XPathContext context)
Check the content of the node, and adjust it if necessary |
static String |
checkContentXQuery(String data)
Check the content of the node, and adjust it if necessary, using the XQuery rules |
static String |
checkContentXSLT(String data)
Check the content of the node, and adjust it if necessary, using the XSLT rules |
Expression |
copy()
Copy an expression. |
NodeName |
evaluateNodeName(XPathContext context)
Run-time method to compute the name of the node being constructed. |
void |
explain(ExpressionPresenter out)
Diagnostic print of expression structure. |
int |
getCardinality()
Determine the static cardinality of the expression. |
int |
getDependencies()
Determine which aspects of the context the expression depends on. |
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 |
Expression |
getNameExpression()
Get the expression that defines the processing instruction name |
Iterator<Expression> |
iterateSubExpressions()
Get the immediate sub-expressions of this expression. |
void |
localTypeCheck(ExpressionVisitor visitor,
ExpressionVisitor.ContextItemType contextItemType)
Method to perform type-checking specific to the kind of instruction |
void |
processValue(CharSequence value,
XPathContext context)
Process the value of the node, to create the new node. |
protected void |
promoteInst(PromotionOffer offer)
Offer promotion for subexpressions. |
boolean |
replaceSubExpression(Expression original,
Expression replacement)
Replace one subexpression by a replacement subexpression |
Expression |
simplify(ExpressionVisitor visitor)
Simplify an expression. |
| Methods inherited from class net.sf.saxon.expr.instruct.SimpleNodeConstructor |
|---|
computeCardinality, computeSpecialProperties, createsNewNodes, evaluateItem, getContentExpression, iterate, optimize, processLeavingTail, setSelect, typeCheck |
| Methods inherited from class net.sf.saxon.expr.instruct.Instruction |
|---|
assembleParams, assembleTunnelParams, dynamicError, evaluateAsString, getConstructType, getExpressionName, getImplementationMethod, getInstructionName, getIteratorFromProcessMethod, getSourceLocator, isXSLT, process, promote |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Methods inherited from interface javax.xml.transform.SourceLocator |
|---|
getColumnNumber, getLineNumber, getPublicId, getSystemId |
| Constructor Detail |
|---|
public ProcessingInstruction(Expression name)
name - the expression used to compute the name of the generated
processing-instruction| Method Detail |
|---|
public int getInstructionNameCode()
getInstructionNameCode in class Instructionpublic Expression getNameExpression()
public ItemType getItemType(TypeHierarchy th)
Instruction
getItemType in class Instructionth - the type hierarchy cache
public int getCardinality()
Expression
getCardinality in class Expression
public Expression simplify(ExpressionVisitor visitor)
throws XPathException
Instruction
simplify in class SimpleNodeConstructorvisitor - an expression visitor
XPathException - if an error is discovered during expression
rewritingpublic Expression copy()
copy in class Expression
public void localTypeCheck(ExpressionVisitor visitor,
ExpressionVisitor.ContextItemType contextItemType)
throws XPathException
SimpleNodeConstructor
localTypeCheck in class SimpleNodeConstructorvisitor - an expression visitorcontextItemType - the static type of the context item
XPathException - if a type error is detectedpublic int getDependencies()
Expression
getDependencies in class Expressionpublic Iterator<Expression> iterateSubExpressions()
Expression
iterateSubExpressions in class SimpleNodeConstructor
public boolean replaceSubExpression(Expression original,
Expression replacement)
replaceSubExpression in class SimpleNodeConstructororiginal - the original subexpressionreplacement - the replacement subexpression
protected void promoteInst(PromotionOffer offer)
throws XPathException
promoteInst in class SimpleNodeConstructoroffer - 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 detected
public void processValue(CharSequence value,
XPathContext context)
throws XPathException
processValue in class SimpleNodeConstructorvalue - the string value of the new nodecontext - the dynamic evaluation context
XPathException
protected String checkContent(String data,
XPathContext context)
throws XPathException
checkContent in class SimpleNodeConstructordata - the supplied contentcontext - the dynamic context
XPathException - if the content is invalidpublic static String checkContentXSLT(String data)
data - the supplied content
public static String checkContentXQuery(String data)
throws XPathException
data - the supplied content
XPathException - if the content is invalid
public NodeName evaluateNodeName(XPathContext context)
throws XPathException
SimpleNodeConstructor
evaluateNodeName in class SimpleNodeConstructorcontext - the XPath dynamic evaluation context
XPathException - if any failure occurspublic void explain(ExpressionPresenter out)
explain in class Expressionout - the expression presenter used to display the structure
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