com.aragost.araspect.evaluators
Class CollectionEvaluator

java.lang.Object
  |
  +--com.aragost.araspect.evaluators.Evaluator
        |
        +--com.aragost.araspect.evaluators.CollectionEvaluator

public class CollectionEvaluator

extends Evaluator

Constructor Summary

CollectionEvaluator()

Method Summary

PathElement	createPathElement(int i) Create a path element that will will index into a collection
java.lang.Object	eval(java.lang.Object arg, PathElement elm) Evaluate a PathElement for the specified Object.
java.lang.String	id() Return a unique id for the receiver.
java.lang.String	prettyPrint(PathElement elm) DOCUMENT ME!

Methods inherited from class com.aragost.araspect.evaluators.Evaluator

get, getRegisteredEvaluators, register, register

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionEvaluator

public CollectionEvaluator()

Method Detail

createPathElement

public PathElement createPathElement(int i)

Create a path element that will will index into a collection

Parameters:

i - The index

Returns:

eval

public java.lang.Object eval(java.lang.Object arg,
                             PathElement elm)
                      throws EvaluationException

Description copied from class: Evaluator

Evaluate a PathElement for the specified Object. The receiver is assumed to be the Evaluator specified by the evaluatorId() of the PathElement.

Specified by:

eval in class Evaluator

Parameters:

arg -

elm -

Returns:

Object

Throws:

EvaluationException

See Also:

Evaluator.eval(Object, PathElement)

id

public java.lang.String id()

Description copied from class: Evaluator

Return a unique id for the receiver. Only one Evaluator should return the same id.

Specified by:

id in class Evaluator

Returns:

String the id.

See Also:

Evaluator.id()

prettyPrint

public java.lang.String prettyPrint(PathElement elm)

DOCUMENT ME!

Overrides:

prettyPrint in class Evaluator

Parameters:

elm - DOCUMENT ME!

Returns:

DOCUMENT ME!