Package org.jaxen.expr
Class DefaultPredicate
- java.lang.Object
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- org.jaxen.expr.DefaultPredicate
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Field Summary
Fields Modifier and Type Field Description private Expr
expr
private static long
serialVersionUID
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Constructor Summary
Constructors Constructor Description DefaultPredicate(Expr expr)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
evaluate(Context context)
Evaluates this predicate's expression and returns the result.Expr
getExpr()
Returns the expression in this predicate.java.lang.String
getText()
Returns the string form of the predicate, including the square brackets.void
setExpr(Expr expr)
Change the expression used by this predicate.void
simplify()
Simplify the expression in this predicate.java.lang.String
toString()
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Field Detail
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serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
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expr
private Expr expr
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Constructor Detail
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DefaultPredicate
DefaultPredicate(Expr expr)
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Method Detail
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getExpr
public Expr getExpr()
Description copied from interface:Predicate
Returns the expression in this predicate.
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setExpr
public void setExpr(Expr expr)
Description copied from interface:Predicate
Change the expression used by this predicate.
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getText
public java.lang.String getText()
Description copied from interface:Predicate
Returns the string form of the predicate, including the square brackets.
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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simplify
public void simplify()
Description copied from interface:Predicate
Simplify the expression in this predicate.- Specified by:
simplify
in interfacePredicate
- See Also:
Expr.simplify()
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evaluate
public java.lang.Object evaluate(Context context) throws JaxenException
Description copied from interface:Predicate
Evaluates this predicate's expression and returns the result. The result will be ajava.lang.Double
for expressions that return a number, ajava.lang.String
for expressions that return a string, ajava.lang.Boolean
for expressions that return a boolean, and ajava.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.- Specified by:
evaluate
in interfacePredicate
- Parameters:
context
- the context in which the expression is evaluated- Returns:
- an object representing the result of the evaluation
- Throws:
JaxenException
- See Also:
Expr.evaluate(Context)
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