de.smartics.exceptions.ognl
Class OgnlExpression

java.lang.Object
  de.smartics.exceptions.ognl.OgnlExpression

public final class OgnlExpression
     
     

      
      extends 
      
      Object
     
     

Wrapper for an OGNL expression.

Author:

Robert Reiner

Constructor Summary

OgnlExpression(String expressionString)
Default constructor.

Method Summary

Object	getExpression() Returns the reference to the parsed expression instance.
Object	getValue(ognl.OgnlContext context, Object rootObject) Returns the value for the given context on the given root object.
void	setValue(ognl.OgnlContext context, Object rootObject, Object value) Sets the value dependent on the OGNL expression.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OgnlExpression

public OgnlExpression(String expressionString)
               throws ognl.OgnlException

Default constructor.

Parameters:

expressionString - the OGNL expression to parse.

Throws:

ognl.OgnlException - on any parsing problem.

Method Detail

getExpression

public Object getExpression()

Returns the reference to the parsed expression instance.

Returns:

the reference to the parsed expression instance.

getValue

public Object getValue(ognl.OgnlContext context,
                       Object rootObject)
                throws ognl.OgnlException

Returns the value for the given context on the given root object.

Parameters:

context - the context of the evaluation.

rootObject - the root object to run the evaluation of the OGNL expression.

Returns:

the value of the root object referenced by the OGNL expression.

Throws:

ognl.OgnlException - on any problem encountered fetching the value.

setValue

public void setValue(ognl.OgnlContext context,
                     Object rootObject,
                     Object value)
              throws ognl.OgnlException

Sets the value dependent on the OGNL expression.

Parameters:

context - the context of the evaluation.

rootObject - the root object to run the evaluation of the OGNL expression.

value - the value to set.

Throws:

ognl.OgnlException - on any problem encountered setting the value.