com.reportmill.base

Class RMListKeyEvaluator

java.lang.Object

com.reportmill.base.RMListKeyEvaluator

All Implemented Interfaces:

RMKey.Get, RMKeyChain.Get

public class RMListKeyEvaluator
extends java.lang.Object
implements RMKey.Get, RMKeyChain.Get

This class can be used to front for objects to perform list flattening. For instance, if you have a list of studios each of which has a list of movies, but you really want the composite list of all movies, you can call valueForKeyChain on a list key evaluator that encapsulates the original object providing the studios.

Constructor Summary

Constructors

Constructor and Description
RMListKeyEvaluator(java.lang.Object anObj, java.lang.String aKey) Creates a new list key evaluator for a given object and a key.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	getKeyChainValue(java.lang.Object aKeyChain) Intercept valueForKeyChain so we can coalate nested lists.
java.lang.Object	getKeyValue(java.lang.String aKey) Intercept valueForKey so we can install LKE's all the way down keychain evaluation.

Methods inherited from class java.lang.Object

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

Constructor Detail

RMListKeyEvaluator

public RMListKeyEvaluator(java.lang.Object anObj,
                  java.lang.String aKey)

Creates a new list key evaluator for a given object and a key.

Method Detail

getKeyValue

public java.lang.Object getKeyValue(java.lang.String aKey)

Intercept valueForKey so we can install LKE's all the way down keychain evaluation.

Specified by:

getKeyValue in interface RMKey.Get

getKeyChainValue

public java.lang.Object getKeyChainValue(java.lang.Object aKeyChain)

Intercept valueForKeyChain so we can coalate nested lists.

Specified by:

getKeyChainValue in interface RMKeyChain.Get