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java.lang.Objectnet.sf.joost.grammar.Tree
net.sf.joost.grammar.tree.PredicateTree
Objects of PredicateTree represent predicate nodes in the syntax tree of a pattern or an STXPath expression.
Field Summary |
Fields inherited from class net.sf.joost.grammar.Tree |
ADD, AND, ATTR, ATTR_LOCAL_WILDCARD, ATTR_URI_WILDCARD, ATTR_WILDCARD, AVT, CDATA_TEST, CHILD, COMMENT_TEST, DDOT, DESC, DIV, DOT, EQ, FUNCTION, GE, GT, LE, left, LIST, lName, LOCAL_WILDCARD, LT, MOD, MULT, NAME_TEST, NE, NODE_TEST, NUMBER, OR, PI_TEST, PREDICATE, right, ROOT, SEQ, STRING, SUB, TEXT_TEST, type, UNION, uri, URI_WILDCARD, value, VALUE, VAR, WILDCARD |
Constructor Summary | |
PredicateTree(Tree left,
Tree right)
Constructs a PredicateTree. |
Method Summary | |
boolean |
matches(Context context,
int top,
boolean setPosition)
Determines if the event stack matches the pattern represented by this Tree object. |
Methods inherited from class net.sf.joost.grammar.Tree |
evaluate, evaluate, getPriority, reverseAssociativity, toString |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public PredicateTree(Tree left, Tree right)
left
- the path before the predicateright
- the contents of the predicateMethod Detail |
public boolean matches(Context context, int top, boolean setPosition) throws SAXException
Tree
matches
in class Tree
context
- the Context objecttop
- the part of the stack to be considered while matching
(the upper most element is at position top-1)setPosition
- true
if the context position
(Context.position
) should be set in case the
event stack matches this pattern
true
if the stack matches the pattern represented
by this Tree.
SAXException
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