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From "Niall Pemberton (JIRA)" <>
Subject [jira] Commented: (BEANUTILS-376) Supporting indexed (mapped) properties of Map objects
Date Fri, 10 Sep 2010 14:07:32 GMT


Niall Pemberton commented on BEANUTILS-376:

Property Utils already supports this (in getNestedProperty() and getProperty() methods rather
than getPropertyOfMapBean()) - you can see examples in the test case:

Example of Mapped-Indexed properties:

Example of Mapped-Map properties:

These features were added in BeanUtils 1.8.0 - see BEANUTILS-43 and BEANUTILS-113

> Supporting indexed (mapped) properties of Map objects
> -----------------------------------------------------
>                 Key: BEANUTILS-376
>                 URL:
>             Project: Commons BeanUtils
>          Issue Type: Improvement
>          Components: Bean / Property Utils
>         Environment: JDK1.5_22, WinXP
>            Reporter: Zdeněk Obst
>            Priority: Minor
> So far, BeanUtils does not support indexed or mapped properties of Map object (PropertyUtilsBean.getPropertyOfMapBean(Map
bean, String propertyName) )
> and throw IllegalArgumentException.
> For instance if you have Map<String, String[]> and you want to get property by
calling propName[0] (or propName(0)), method isIndexed (isMapped) of DefaultResolver returns
true which raises previously mentioned exception. From my point of view it seems that method
gets data which needs and is possible to parse propertyName to get desired result.
> E.g. something similar to:
> {code}
> if (resolver.isIndexed(propertyName)) {
>    String name = resolver.getProperty(propertyName);
>    int idx = Integer.valueOf(resolver.getIndex(propertyName)); // handle NumberFormat
exception by your way
>    return ((Object[]) bean.get(name))[idx]; // handle ArrayIndexOutOfBounds and ClassCast
exception by your way
> }
> {code}
> I was a bit surprised that I didn't find this issue in existing ones. I'm sorry if there
is any which I omitted. 
> Is it possible that this funcionality will be provided in any future release? Thank you

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