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java.lang.Object
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+--net.sf.saxon.expr.ComputedExpression
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+--net.sf.saxon.instruct.Instruction
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+--net.sf.saxon.instruct.InstructionWithChildren
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+--net.sf.saxon.instruct.SimpleNodeConstructor
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+--net.sf.saxon.instruct.Attribute
An instruction derived from an xsl:attribute element in stylesheet, or from an attribute constructor in XQuery
| Field Summary |
| Fields inherited from class net.sf.saxon.instruct.SimpleNodeConstructor |
select, separator |
| Fields inherited from class net.sf.saxon.instruct.InstructionWithChildren |
children |
| 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 | |
Attribute(Expression attributeName,
Expression namespace,
NamespaceResolver nsContext,
int validationAction,
SimpleType schemaType,
int annotation)
Construct an Attribute instruction |
|
| Method Summary | |
void |
display(int level,
NamePool pool,
java.io.PrintStream out)
Display this instruction as an expression, for diagnostics |
protected int |
evaluateNameCode(XPathContext context)
|
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 |
ItemType |
getItemType()
Get the item type of the items returned by evaluating this instruction |
java.util.Iterator |
iterateSubExpressions()
Get the immediate sub-expressions of this expression. |
TailCall |
processLeavingTail(XPathContext context)
Process this instruction |
protected void |
promoteInst(PromotionOffer offer)
Offer promotion for subexpressions. |
void |
setRejectDuplicates()
Indicate that two attributes with the same name are not acceptable. |
Expression |
simplify(StaticContext env)
Simplify an expression. |
void |
typeCheck(StaticContext env,
ItemType contextItemType)
|
| Methods inherited from class net.sf.saxon.instruct.SimpleNodeConstructor |
analyze, checkContent, evaluateItem, expandChildren, iterate, setSelect, setSeparator |
| Methods inherited from class net.sf.saxon.instruct.InstructionWithChildren |
displayChildren, getChildren, processChildren, processChildrenLeavingTail, setChildren |
| Methods inherited from class net.sf.saxon.instruct.Instruction |
appendItem, assembleParams, assembleTunnelParams, computeCardinality, computeSpecialProperties, dynamicError, dynamicError, effectiveBooleanValue, evaluateAsString, getImplementationMethod, getInstructionInfo, getSourceLocator, process, promote |
| Methods inherited from class net.sf.saxon.expr.ComputedExpression |
adoptChildExpression, computeDependencies, computeStaticProperties, dynamicError, dynamicError, getColumnNumber, getConstructType, getExecutable, getIntrinsicDependencies, getLineNumber, getLocationId, getParentExpression, getPublicId, getSpecialProperties, getSystemId, markTailFunctionCalls, resetStaticProperties, setLocationId, setParentExpression, typeError |
| 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 Attribute(Expression attributeName,
Expression namespace,
NamespaceResolver nsContext,
int validationAction,
SimpleType schemaType,
int annotation)
attributeName - An expression to calculate the attribute namenamespace - An expression to calculate the attribute namespacensContext - a NamespaceContext object containing the static namespace context of the
stylesheet instructionannotation - Integer code identifying the type named in the type attribute
of the instruction - zero if the attribute was not present| Method Detail |
public void setRejectDuplicates()
public int getInstructionNameCode()
getInstructionNameCode in class Instructionpublic ItemType getItemType()
Instruction
getItemType in interface ExpressiongetItemType in class Instructionpublic int getCardinality()
ComputedExpression
getCardinality in interface ExpressiongetCardinality in class ComputedExpression
public Expression simplify(StaticContext env)
throws XPathException
InstructionWithChildren
simplify in interface Expressionsimplify in class SimpleNodeConstructorXPathException - if an error is discovered during expression
rewriting
public void typeCheck(StaticContext env,
ItemType contextItemType)
throws XPathException
typeCheck in class SimpleNodeConstructorXPathExceptionpublic int getDependencies()
ComputedExpression
getDependencies in interface ExpressiongetDependencies in class ComputedExpressionpublic java.util.Iterator iterateSubExpressions()
InstructionWithChildren
iterateSubExpressions in interface ExpressioniterateSubExpressions in class SimpleNodeConstructor
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 TailCall processLeavingTail(XPathContext context)
throws XPathException
processLeavingTail in class Instructioncontext - the dynamic context of the transformation
XPathException
protected int evaluateNameCode(XPathContext context)
throws XPathException,
XPathException
evaluateNameCode in class SimpleNodeConstructorXPathException
public void display(int level,
NamePool pool,
java.io.PrintStream out)
display in interface Expressiondisplay in class SimpleNodeConstructorlevel - indentation level for this expressionpool - NamePool used to expand any names appearing in the expressionout - Output destination
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