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java.lang.Objectnet.sf.saxon.expr.ComputedExpression
net.sf.saxon.expr.IntegerRangeTest
An IntegerRangeTest is an expression of the form E = N to M where E, N, and M are all expressions of type integer.
Field Summary |
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 | |
IntegerRangeTest(Expression value,
Expression min,
Expression max)
Construct a IntegerRangeTest |
Method Summary | |
Expression |
analyze(StaticContext env,
ItemType contextItemType)
Type-check the expression |
int |
computeCardinality()
Determine the static cardinality |
void |
display(int level,
NamePool pool,
java.io.PrintStream out)
Display this instruction as an expression, for diagnostics |
Item |
evaluateItem(XPathContext c)
Evaluate the expression |
ItemType |
getItemType()
Get the data type of the items returned |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public IntegerRangeTest(Expression value, Expression min, Expression max)
Method Detail |
public Expression analyze(StaticContext env, ItemType contextItemType) throws XPathException
env
- 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 ItemType getItemType()
public int computeCardinality()
computeCardinality
in class ComputedExpression
public Item evaluateItem(XPathContext c) throws XPathException
evaluateItem
in interface Expression
evaluateItem
in class ComputedExpression
c
- The context in which the expression is to be evaluated
XPathException
- if any dynamic error occurs evaluating the
expressionpublic void display(int level, NamePool pool, java.io.PrintStream out)
level
- indentation level for this expressionpool
- NamePool used to expand any names appearing in the expressionout
- Output destination
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