|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||
java.lang.Object
|
+--net.sf.saxon.expr.ComputedExpression
|
+--net.sf.saxon.expr.UnaryExpression
|
+--net.sf.saxon.expr.UntypedAtomicConverter
An UntypedAtomicConverter is an expression that converts any untypedAtomic items in a sequence to a specified type, returning all other items unchanged
| Field Summary |
| Fields inherited from class net.sf.saxon.expr.UnaryExpression |
operand |
| 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 | |
UntypedAtomicConverter(Expression sequence,
AtomicType requiredItemType)
Constructor |
|
| Method Summary | |
Expression |
analyze(StaticContext env,
ItemType contextItemType)
Type-check the expression |
protected java.lang.String |
displayOperator(NamePool pool)
Give a string representation of the operator for use in diagnostics |
Item |
evaluateItem(XPathContext context)
Evaluate as an Item. |
SequenceIterator |
iterate(XPathContext context)
Iterate over the sequence of values |
java.lang.Object |
map(Item item,
XPathContext context,
java.lang.Object info)
Implement the mapping function |
| Methods inherited from class net.sf.saxon.expr.UnaryExpression |
computeCardinality, computeSpecialProperties, display, equals, getBaseExpression, getItemType, hashCode, iterateSubExpressions, promote, simplify |
| Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public UntypedAtomicConverter(Expression sequence,
AtomicType requiredItemType)
| Method Detail |
public Expression analyze(StaticContext env,
ItemType contextItemType)
throws XPathException
analyze in interface Expressionanalyze in class UnaryExpressionenv - the static context of the expressioncontextItemType - the static type of "." at the point where this expression is invoked.
The parameter is set to null if it is known statically that the context item will be undefined.
If the type of the context item is not known statically, the argument is set to
Type.ITEM_TYPE
XPathException
public SequenceIterator iterate(XPathContext context)
throws XPathException
iterate in interface Expressioniterate in class ComputedExpressioncontext - supplies the context for evaluation
XPathException - if any dynamic error occurs evaluating the
expression
public Item evaluateItem(XPathContext context)
throws XPathException
evaluateItem in interface ExpressionevaluateItem in class ComputedExpressioncontext - The context in which the expression is to be evaluated
XPathException - if any dynamic error occurs evaluating the
expression
public java.lang.Object map(Item item,
XPathContext context,
java.lang.Object info)
throws XPathException
map in interface MappingFunctionitem - The item to be mapped.
If context is supplied, this must be the same as context.currentItem().context - The processing context. This is supplied only for mapping constructs that
set the context node, position, and size. Otherwise it is null.info - Arbitrary information supplied by the creator of the MappingIterator. It must be
read-only and immutable for the duration of the iteration.
XPathExceptionprotected java.lang.String displayOperator(NamePool pool)
displayOperator in class UnaryExpression
|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||