org.jaxen.expr
Class DefaultEqualityExpr

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

abstract class DefaultEqualityExpr
extends DefaultTruthExpr
implements EqualityExpr


Constructor Summary
DefaultEqualityExpr(Expr lhs, Expr rhs)
           
 
Method Summary
 java.lang.Object evaluate(Context context)
          Evaluate the expression in the given context, and return the result.
protected abstract  boolean evaluateObjectObject(java.lang.Object lhs, java.lang.Object rhs)
           
private  boolean evaluateObjectObject(java.lang.Object lhs, java.lang.Object rhs, Navigator nav)
           
private  java.lang.Boolean evaluateSetSet(java.util.List lhsSet, java.util.List rhsSet, Navigator nav)
           
 java.lang.String toString()
           
 
Methods inherited from class org.jaxen.expr.DefaultTruthExpr
bothAreBoolean, bothAreSets, eitherIsBoolean, eitherIsNumber, eitherIsSet, isBoolean, isSet, setIsEmpty
 
Methods inherited from class org.jaxen.expr.DefaultBinaryExpr
getLHS, getOperator, getRHS, getText, setLHS, setRHS, simplify
 
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.BinaryExpr
getLHS, getOperator, getRHS
 
Methods inherited from interface org.jaxen.expr.Expr
getText, simplify
 

Constructor Detail

DefaultEqualityExpr

DefaultEqualityExpr(Expr lhs,
                    Expr rhs)
Method Detail

toString

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

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.

Specified by:
evaluate in interface Expr
Parameters:
context - the context in which the expression is evaluated
Returns:
an object representing the result of the evaluation
Throws:
JaxenException

evaluateSetSet

private java.lang.Boolean evaluateSetSet(java.util.List lhsSet,
                                         java.util.List rhsSet,
                                         Navigator nav)

evaluateObjectObject

private boolean evaluateObjectObject(java.lang.Object lhs,
                                     java.lang.Object rhs,
                                     Navigator nav)

evaluateObjectObject

protected abstract boolean evaluateObjectObject(java.lang.Object lhs,
                                                java.lang.Object rhs)