org.jaxen.expr
Class DefaultPlusExpr
java.lang.Object
org.jaxen.expr.DefaultExpr
org.jaxen.expr.DefaultBinaryExpr
org.jaxen.expr.DefaultArithExpr
org.jaxen.expr.DefaultAdditiveExpr
org.jaxen.expr.DefaultPlusExpr
- All Implemented Interfaces:
- AdditiveExpr, BinaryExpr, Expr, java.io.Serializable
- class DefaultPlusExpr
- extends DefaultAdditiveExpr
Method Summary |
java.lang.Object |
evaluate(Context context)
Evaluate the expression in the given context, and return the result. |
Expr |
getLHS()
Returns the left-hand side of the binary expression. |
java.lang.String |
getOperator()
Returns the operator for the binary expression such as "+" or
"div". |
Expr |
getRHS()
Returns the right-hand side of the binary expression. |
java.lang.String |
getText()
Returns a String containing the XPath expression. |
void |
setLHS(Expr lhs)
|
void |
setRHS(Expr rhs)
|
Expr |
simplify()
Simplifies the XPath expression. |
java.lang.String |
toString()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
DefaultPlusExpr
DefaultPlusExpr(Expr lhs,
Expr rhs)
getOperator
public java.lang.String getOperator()
- Description copied from interface:
BinaryExpr
- Returns the operator for the binary expression such as "+" or
"div".
- Specified by:
getOperator
in interface BinaryExpr
- Specified by:
getOperator
in class DefaultBinaryExpr
evaluate
public java.lang.Object evaluate(Context context)
throws JaxenException
- Description copied from interface:
Expr
- Evaluate the expression in the given context, and return the result.
The result will be a
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.
- Parameters:
context
- the context in which the expression is evaluated
- Returns:
- an object representing the result of the evaluation
- Throws:
JaxenException
toString
public java.lang.String toString()
- Overrides:
toString
in class DefaultArithExpr
getLHS
public Expr getLHS()
- Description copied from interface:
BinaryExpr
- Returns the left-hand side of the binary expression.
- Specified by:
getLHS
in interface BinaryExpr
- Returns:
- the left hand side expression
getRHS
public Expr getRHS()
- Description copied from interface:
BinaryExpr
- Returns the right-hand side of the binary expression.
- Specified by:
getRHS
in interface BinaryExpr
- Returns:
- the right-hand side expression
setLHS
public void setLHS(Expr lhs)
setRHS
public void setRHS(Expr rhs)
getText
public java.lang.String getText()
- Description copied from interface:
Expr
- Returns a String containing the XPath expression.
- Specified by:
getText
in interface Expr
- Returns:
- the text form of this XPath expression
simplify
public Expr simplify()
- Description copied from interface:
Expr
- Simplifies the XPath expression. For example, the expression
//para[1 = 1]
could be simplified to
//para
. In practice, this is usually a noop.
Jaxen does not currently perform any simplification.
- Specified by:
simplify
in interface Expr
- Overrides:
simplify
in class DefaultExpr