public class UnparsedText extends SystemFunction implements CallableExpression
Modifier and Type | Field and Description |
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(package private) String |
expressionBaseURI |
operation
argument
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 and Description |
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UnparsedText() |
Modifier and Type | Method and Description |
---|---|
SequenceIterator |
call(SequenceIterator[] arguments,
XPathContext context)
Evaluate the expression
|
void |
checkArguments(ExpressionVisitor visitor)
Method called during static type checking
|
int |
computeSpecialProperties()
Determine the special properties of this expression.
|
Item |
evaluateItem(XPathContext context)
This method handles evaluation of the function:
it returns a StringValue in the case of unparsed-text(), or a BooleanValue
in the case of unparsed-text-available().
|
Item |
evalUnparsedText(StringValue hrefVal,
String encoding,
XPathContext context) |
static URI |
getAbsoluteURI(String href,
String baseURI) |
String |
getExpressionBaseURI()
getExpressionBaseURI: this method returns the expression base URI
|
static XPathException |
handleIOError(URI absoluteURI,
IOException ioErr) |
static void |
main(String[] args) |
Expression |
preEvaluate(ExpressionVisitor visitor)
preEvaluate: this method suppresses compile-time evaluation by doing nothing
|
static CharSequence |
readFile(NameChecker checker,
Reader reader)
Read the contents of an unparsed text file
|
CharSequence |
readFile(String href,
String baseURI,
String encoding,
XPathContext context)
Supporting routine to load one external file given a URI (href) and a baseURI
|
addContextDocumentArgument, addDocToPathMap, computeCardinality, copy, equals, getDetails, getErrorCodeForTypeErrors, getImplementationMethod, getItemType, getOperation, getRequiredType, makeSystemFunction, optimize, setDetails, useContextItemAsDefault
addExternalFunctionCallToPathMap, checkArgumentCount, explain, getArguments, getDisplayName, getExpressionName, getFunctionName, getNumberOfArguments, hashCode, iterateSubExpressions, promote, replaceSubExpression, setArguments, setFunctionName, simplify, simplifyArguments, toString, typeCheck
addToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, evaluatePendingUpdates, explain, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getContainer, getDependencies, getEvaluationMethod, getExecutable, getHostLanguage, getIntegerBounds, getIntrinsicDependencies, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, getSystemId, hasLoopingSubexpression, hasVariableBinding, implementsStaticTypeCheck, isSubtreeExpression, isUpdatingExpression, isVacuousExpression, iterate, iterateEvents, iterateSameFocusSubExpressions, markTailFunctionCalls, process, resetLocalStaticProperties, setContainer, setEvaluationMethod, setFiltered, setFlattened, setLocationId, staticTypeCheck, suppressValidation, typeError
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
getArguments
String expressionBaseURI
public void checkArguments(ExpressionVisitor visitor) throws XPathException
SystemFunction
checkArguments
in class SystemFunction
visitor
- the expression visitorXPathException
- if the arguments are incorrectpublic String getExpressionBaseURI()
public Expression preEvaluate(ExpressionVisitor visitor)
preEvaluate
in class FunctionCall
visitor
- an expression visitorpublic int computeSpecialProperties()
SystemFunction
computeSpecialProperties
in class SystemFunction
public Item evaluateItem(XPathContext context) throws XPathException
evaluateItem
in class Expression
context
- The context in which the expression is to be evaluatedXPathException
- if any dynamic error occurs evaluating the
expressionpublic SequenceIterator call(SequenceIterator[] arguments, XPathContext context) throws XPathException
call
in interface CallableExpression
arguments
- the values of the arguments, supplied as SequenceIteratorscontext
- the dynamic evaluation contextXPathException
- if a dynamic error occurs during the evaluation of the expressionpublic Item evalUnparsedText(StringValue hrefVal, String encoding, XPathContext context) throws XPathException
XPathException
public CharSequence readFile(String href, String baseURI, String encoding, XPathContext context) throws XPathException
XPathException
public static URI getAbsoluteURI(String href, String baseURI) throws XPathException
XPathException
public static XPathException handleIOError(URI absoluteURI, IOException ioErr)
public static CharSequence readFile(NameChecker checker, Reader reader) throws IOException, XPathException
checker
- NameChecker for checking whether characters are valid XML charactersreader
- Reader to be used for reading the fileIOException
- if a failure occurs reading the fileXPathException
- if the file contains illegal characters