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java.lang.Object | +--net.sf.saxon.expr.ComputedExpression | +--net.sf.saxon.instruct.Instruction | +--net.sf.saxon.instruct.InstructionWithChildren | +--net.sf.saxon.instruct.ElementCreator | +--net.sf.saxon.instruct.Copy
Handler for xsl:copy elements in stylesheet.
Field Summary |
Fields inherited from class net.sf.saxon.instruct.ElementCreator |
inheritNamespaces, schemaType, useAttributeSets, validation |
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 | |
Copy(AttributeSet[] useAttributeSets,
boolean copyNamespaces,
boolean inheritNamespaces,
SchemaType schemaType,
int validation)
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Method Summary | |
Expression |
analyze(StaticContext env,
ItemType contextItemType)
Perform static analysis of an expression and its subexpressions. |
void |
display(int level,
NamePool pool,
java.io.PrintStream out)
Diagnostic print of expression structure. |
int |
getInstructionNameCode()
Get the name of this instruction for diagnostic and tracing purposes |
ItemType |
getItemType()
Get the item type of the result of this instruction. |
protected int |
getNameCode(XPathContext context)
Callback from ElementCreator when constructing an element |
protected void |
outputNamespaceNodes(XPathContext context,
Receiver receiver)
Callback to output namespace nodes for the new element. |
TailCall |
processLeavingTail(XPathContext context)
Evaluate the instruction to produce a new element node |
Methods inherited from class net.sf.saxon.instruct.ElementCreator |
evaluateItem, getCardinality, getValidationMode, setValidationMode |
Methods inherited from class net.sf.saxon.instruct.InstructionWithChildren |
displayChildren, getChildren, iterateSubExpressions, processChildren, processChildrenLeavingTail, promoteInst, setChildren, simplify |
Methods inherited from class net.sf.saxon.instruct.Instruction |
appendItem, assembleParams, assembleTunnelParams, computeCardinality, computeSpecialProperties, dynamicError, dynamicError, effectiveBooleanValue, evaluateAsString, getImplementationMethod, getInstructionInfo, getSourceLocator, iterate, 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 Copy(AttributeSet[] useAttributeSets, boolean copyNamespaces, boolean inheritNamespaces, SchemaType schemaType, int validation)
Method Detail |
public int getInstructionNameCode()
getInstructionNameCode
in class Instruction
public Expression analyze(StaticContext env, ItemType contextItemType) throws XPathException
InstructionWithChildren
This checks statically that the operands of the expression have the correct type; if necessary it generates code to do run-time type checking or type conversion. A static type error is reported only if execution cannot possibly succeed, that is, if a run-time type error is inevitable. The call may return a modified form of the expression.
This method is called after all references to functions and variables have been resolved to the declaration of the function or variable. However, the types of such functions and variables will only be accurately known if they have been explicitly declared.
analyze
in interface Expression
analyze
in class InstructionWithChildren
env
- the static context of the expression
XPathException
- if an error is discovered during this phase
(typically a type error)public ItemType getItemType()
getItemType
in interface Expression
getItemType
in class ElementCreator
protected int getNameCode(XPathContext context) throws XPathException
getNameCode
in class ElementCreator
context
-
XPathException
protected void outputNamespaceNodes(XPathContext context, Receiver receiver) throws XPathException
outputNamespaceNodes
in class ElementCreator
context
- The execution contextreceiver
- the Receiver where the namespace nodes are to be written
XPathException
public TailCall processLeavingTail(XPathContext context) throws XPathException
ElementCreator
processLeavingTail
in class ElementCreator
context
-
XPathException
public void display(int level, NamePool pool, java.io.PrintStream out)
level
- indentation level for this expressionout
- pool
- NamePool used to expand any names appearing in the expression
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