net.sf.saxon.expr
Class IntegerRangeTest
- EvaluableItem, InstructionInfoProvider, SequenceIterable, Serializable, SourceLocator
public class IntegerRangeTest
An IntegerRangeTest is an expression of the form
E = N to M
where E is numeric, and N and M are both expressions of type integer.
addToPathMap , adoptChildExpression , checkPermittedContents , computeCardinality , computeDependencies , computeSpecialProperties , computeStaticProperties , copy , display , doPromotion , dynamicError , effectiveBooleanValue , evaluateAsString , evaluateItem , explain , explain , findParentOf , getCardinality , getColumnNumber , getConstructType , getContainer , getDependencies , getExecutable , getHostLanguage , getImplementationMethod , getInstructionInfo , getIntrinsicDependencies , getItemType , getLineNumber , getLocationId , getLocationProvider , getPublicId , getSlotsUsed , getSpecialProperties , getSystemId , hasLoopingSubexpression , implementsStaticTypeCheck , iterate , iterateEvents , iterateSubExpressions , markTailFunctionCalls , optimize , process , promote , replaceSubExpression , resetLocalStaticProperties , setContainer , setFiltered , setFlattened , setLocationId , simplify , staticTypeCheck , suppressValidation , toString , typeCheck , typeError |
IntegerRangeTest
public IntegerRangeTest(Expression value,
Expression min,
Expression max)
Construct a IntegerRangeTest
value
- the integer value to be tested to see if it is in the range min to max inclusivemin
- the lowest permitted valuemax
- the highest permitted value
copy
public Expression copy()
Copy an expression. This makes a deep copy.
- copy in interface Expression
- the copy of the original expression
explain
public void explain(ExpressionPresenter destination)
Diagnostic print of expression structure. The abstract expression tree
is written to the supplied output destination.
- explain in interface Expression
getMaxValueExpression
public Expression getMaxValueExpression()
Get the expression denoting the end of the range
- the expression denoting the maximum value
getMinValueExpression
public Expression getMinValueExpression()
Get the expression denoting the start of the range
- the expression denoting the minumum value
getValueExpression
public Expression getValueExpression()
Get the value to be tested
- the expression that evaluates to the value being tested
iterateSubExpressions
public Iterator iterateSubExpressions()
Get the immediate sub-expressions of this expression. Default implementation
returns a zero-length array, appropriate for an expression that has no
sub-expressions.
- iterateSubExpressions in interface Expression
- an iterator containing the sub-expressions of this expression
optimize
public Expression optimize(ExpressionVisitor visitor,
ItemType contextItemType)
throws XPathException
Perform optimisation of an expression and its subexpressions.
This method is called after all references to functions and variables have been resolved
to the declaration of the function or variable, and after all type checking has been done.
- optimize in interface Expression
visitor
- an expression visitorcontextItemType
- 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
- the original expression, rewritten if appropriate to optimize execution
XPathException
- if an error is discovered during this phase
(typically a type error)
replaceSubExpression
public boolean replaceSubExpression(Expression original,
Expression replacement)
Replace one subexpression by a replacement subexpression
- replaceSubExpression in interface Expression
original
- the original subexpressionreplacement
- the replacement subexpression
- true if the original subexpression is found