|
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||
java.lang.Objectnet.sf.saxon.expr.Expression
com.saxonica.update.BasicUpdatingExpression
public abstract class BasicUpdatingExpression
A basic updating expression: insert, replace, delete, rename (but not copy)
| Field Summary |
|---|
| Fields inherited from class net.sf.saxon.expr.Expression |
|---|
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 Summary | |
|---|---|
BasicUpdatingExpression()
|
|
| Method Summary | |
|---|---|
int |
computeCardinality()
Determine the static cardinality of the expression. |
Item |
evaluateItem(XPathContext context)
Evaluate an expression as a single item. |
ItemType |
getItemType(TypeHierarchy th)
Determine the data type of the expression, if possible. |
boolean |
isUpdatingExpression()
Determine whether this is an updating expression as defined in the XQuery update specification |
SequenceIterator |
iterate(XPathContext context)
Return an Iterator to iterate over the values of a sequence. |
void |
process(XPathContext context)
Process the instruction, without returning any tail calls |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public BasicUpdatingExpression()
| Method Detail |
|---|
public final boolean isUpdatingExpression()
isUpdatingExpression in class Expressionpublic int computeCardinality()
computeCardinality in class Expressionpublic ItemType getItemType(TypeHierarchy th)
This method should always return a result, though it may be the best approximation that is available at the time.
getItemType in class Expressionth - the type hierarchy cache
public Item evaluateItem(XPathContext context)
throws XPathException
evaluateItem in class Expressioncontext - The context in which the expression is to be evaluated
XPathException - if any dynamic error occurs evaluating the
expression
public SequenceIterator iterate(XPathContext context)
throws XPathException
iterate in class Expressioncontext - supplies the context for evaluation
XPathException - if any dynamic error occurs evaluating the
expression
public void process(XPathContext context)
throws XPathException
process in class Expressioncontext - The dynamic context, giving access to the current node,
the current variables, etc.
XPathException - if a dynamic error occurs
|
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||