Table 3-2: XPath set operators
Operator
|
Description
|
|---|
union |
|
Union: union operator (shortcut is '|') returns
the combined set of values from the query on the left and the query
on the right. Duplicates are filtered out and resulting list is
sorted in document order.
|
intersect
|
Intersection: intersect operator returns the
set of elements in common between two sets.
|
( )
|
Group: you can use parentheses to group collection
operators.
|
. (dot)
|
Period: dot term is evaluated with respect to
a search context. The term evaluates to a set that contains only
the reference node for this search context.
|
Boolean Operators (and and or)
|
Boolean expressions can be used within subqueries.
|
and
|
Boolean “and”.
|
or
|
Boolean “or”.
|
