java.io.Serializable
AdditiveExpr
, BinaryExpr
, EqualityExpr
, FilterExpr
, FunctionCallExpr
, LiteralExpr
, LocationPath
, LogicalExpr
, MultiplicativeExpr
, NumberExpr
, PathExpr
, RelationalExpr
, UnaryExpr
, UnionExpr
, VariableReferenceExpr
DefaultAbsoluteLocationPath
, DefaultExpr
, DefaultFilterExpr
, DefaultFunctionCallExpr
, DefaultRelativeLocationPath
, DefaultUnionExpr
public interface Expr
extends java.io.Serializable
[14] Expr ::= OrExpr
Modifier and Type | Method | Description |
---|---|---|
java.lang.Object |
evaluate(Context context) |
Evaluate the expression in the given context, and return the result.
|
java.lang.String |
getText() |
Returns a String containing the XPath expression.
|
Expr |
simplify() |
Simplifies the XPath expression.
|
java.lang.String getText()
Expr simplify()
//para[1 = 1]
could be simplified to
//para
. In practice, this is usually a noop.
Jaxen does not currently perform any simplification.java.lang.Object evaluate(Context context) throws JaxenException
java.lang.Double
for expressions that
return a number, a java.lang.String
for expressions that
return a string, a java.lang.Boolean
for expressions that
return a boolean, and a java.util.List
for expressions that
return a node-set. In the latter case, the elements of the list are
the actual objects from the source document model. Copies are not made.context
- the context in which the expression is evaluatedJaxenException
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