Spring Framework

org.springframework.expression.spel.support
Class StandardOperatorOverloader

java.lang.Object
  extended by org.springframework.expression.spel.support.StandardOperatorOverloader
All Implemented Interfaces:
OperatorOverloader

public class StandardOperatorOverloader
extends java.lang.Object
implements OperatorOverloader

Since:
3.0
Author:
Juergen Hoeller

Constructor Summary
StandardOperatorOverloader()
           
 
Method Summary
 java.lang.Object operate(Operation operation, java.lang.Object leftOperand, java.lang.Object rightOperand)
          Execute the specified operation on two operands, returning a result.
 boolean overridesOperation(Operation operation, java.lang.Object leftOperand, java.lang.Object rightOperand)
          Return true if the operator overloader supports the specified operation between the two operands and so should be invoked to handle it.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

StandardOperatorOverloader

public StandardOperatorOverloader()
Method Detail

overridesOperation

public boolean overridesOperation(Operation operation,
                                  java.lang.Object leftOperand,
                                  java.lang.Object rightOperand)
                           throws EvaluationException
Description copied from interface: OperatorOverloader
Return true if the operator overloader supports the specified operation between the two operands and so should be invoked to handle it.

Specified by:
overridesOperation in interface OperatorOverloader
Parameters:
operation - the operation to be performed
leftOperand - the left operand
rightOperand - the right operand
Returns:
true if the OperatorOverloader supports the specified operation between the two operands
Throws:
EvaluationException - if there is a problem performing the operation

operate

public java.lang.Object operate(Operation operation,
                                java.lang.Object leftOperand,
                                java.lang.Object rightOperand)
                         throws EvaluationException
Description copied from interface: OperatorOverloader
Execute the specified operation on two operands, returning a result. See Operation for supported operations.

Specified by:
operate in interface OperatorOverloader
Parameters:
operation - the operation to be performed
leftOperand - the left operand
rightOperand - the right operand
Returns:
the result of performing the operation on the two operands
Throws:
EvaluationException - if there is a problem performing the operation

Spring Framework