org.jaxen.expr
Class DefaultBinaryExpr

java.lang.Object
  extended by org.jaxen.expr.DefaultExpr
      extended by org.jaxen.expr.DefaultBinaryExpr
All Implemented Interfaces:
java.io.Serializable, BinaryExpr, Expr
Direct Known Subclasses:
DefaultArithExpr, DefaultTruthExpr, DefaultUnionExpr

abstract class DefaultBinaryExpr
extends DefaultExpr
implements BinaryExpr


Field Summary
private  Expr lhs
           
private  Expr rhs
           
 
Constructor Summary
DefaultBinaryExpr(Expr lhs, Expr rhs)
           
 
Method Summary
 Expr getLHS()
          Returns the left-hand side of the binary expression.
abstract  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 org.jaxen.expr.DefaultExpr
convertToIterator, convertToList
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.jaxen.expr.Expr
evaluate
 

Field Detail

lhs

private Expr lhs

rhs

private Expr rhs
Constructor Detail

DefaultBinaryExpr

DefaultBinaryExpr(Expr lhs,
                  Expr rhs)
Method Detail

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)

getOperator

public abstract 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
Returns:
the operator for the expression

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

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object

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
Returns:
the simplified expression