net.sf.saxon.expr
public final class AtomicSequenceConverter extends UnaryExpression implements MappingFunction
Constructor Summary | |
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AtomicSequenceConverter(Expression sequence, AtomicType requiredItemType)
Constructor |
Method Summary | |
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int | computeCardinality()
Determine the static cardinality of the expression |
int | computeSpecialProperties()
Determine the special properties of this expression |
protected String | displayOperator(NamePool pool)
Give a string representation of the operator for use in diagnostics |
boolean | equals(Object other)
Is this expression the same as another expression? |
Item | evaluateItem(XPathContext context)
Evaluate as an Item. |
ItemType | getItemType(TypeHierarchy th)
Determine the data type of the items returned by the expression, if possible |
SequenceIterator | iterate(XPathContext context)
Iterate over the sequence of values |
Object | map(Item item, XPathContext context)
Implement the mapping function |
Expression | simplify(StaticContext env)
Simplify an expression |
Expression | typeCheck(StaticContext env, ItemType contextItemType)
Type-check the expression |
Parameters: sequence this must be a sequence of atomic values. This is not checked; a ClassCastException will occur if the precondition is not satisfied. requiredItemType the item type to which all items in the sequence should be converted, using the rules for "cast as".
Returns: NON_CREATIVE.
Returns: the operator, as a string
Parameters: th
Returns: a value such as Type.STRING, Type.BOOLEAN, Type.NUMBER, Type.NODE, or Type.ITEM (meaning not known in advance)