/**
* The typed value of a list-valued node is obtained by tokenizing the string value and applying
* a mapping function to the sequence of tokens. This method implements the mapping function. It
* is for internal use only. For details see {@link org.orbeon.saxon.expr.MappingFunction}
*/
public SequenceIterator map(Item item) throws XPathException {
try {
return atomicType.getTypedValue(item.getStringValue(), resolver, nameChecker);
} catch (ValidationException err) {
throw new XPathException(err);
}
}
/** Evaluate as an expression. */
public Item evaluateItem(XPathContext context) throws XPathException {
if (isLazyConstruction()
&& (context.getConfiguration().areAllNodesUntyped()
|| (validation == Validation.PRESERVE && getSchemaType() == null))) {
return new UnconstructedDocument(this, context);
} else {
Controller controller = context.getController();
DocumentInfo root;
if (textOnly) {
CharSequence textValue;
if (constantText != null) {
textValue = constantText;
} else {
FastStringBuffer sb = new FastStringBuffer(100);
SequenceIterator iter = content.iterate(context);
while (true) {
Item item = iter.next();
if (item == null) break;
sb.append(item.getStringValueCS());
}
textValue = sb.condense();
}
root = new TextFragmentValue(textValue, getBaseURI());
((TextFragmentValue) root).setConfiguration(controller.getConfiguration());
} else {
try {
XPathContext c2 = context.newMinorContext();
c2.setOrigin(this);
Builder builder = controller.makeBuilder();
// builder.setSizeParameters(treeSizeParameters);
builder.setLineNumbering(controller.getConfiguration().isLineNumbering());
// receiver.setSystemId(getBaseURI());
builder.setBaseURI(getBaseURI());
builder.setTiming(false);
PipelineConfiguration pipe = controller.makePipelineConfiguration();
pipe.setHostLanguage(getHostLanguage());
// pipe.setBaseURI(baseURI);
builder.setPipelineConfiguration(pipe);
c2.changeOutputDestination(
null, builder, false, getHostLanguage(), validation, getSchemaType());
Receiver out = c2.getReceiver();
out.open();
out.startDocument(0);
content.process(c2);
out.endDocument();
out.close();
root = (DocumentInfo) builder.getCurrentRoot();
} catch (XPathException e) {
e.maybeSetLocation(this);
e.maybeSetContext(context);
throw e;
}
}
return root;
}
}