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java.lang.Objectnet.sf.joost.grammar.Tree
net.sf.joost.grammar.tree.VarTree
Objects of VarTree represent variable reference ('$var') 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 | |
VarTree(String value,
ParseContext context)
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Method Summary | |
Value |
evaluate(Context context,
int top)
Evaluates the current Tree if it represents an expression. |
Methods inherited from class net.sf.joost.grammar.Tree |
evaluate, getPriority, matches, reverseAssociativity, toString |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public VarTree(String value, ParseContext context) throws SAXParseException
Method Detail |
public Value evaluate(Context context, int top) throws SAXException
Tree
evaluate
in class Tree
context
- the current Contexttop
- the part of the stack to be considered for the evaluation
(the upper most element is at position top-1)
SAXException
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