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From "Benedikt Ritter (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SANDBOX-387) [BeanUtils2] Implement possibility to find out if a property readable and/or wirtable
Date Sun, 05 Feb 2012 14:11:55 GMT
[BeanUtils2] Implement possibility to find out if a property readable and/or wirtable
-------------------------------------------------------------------------------------

                 Key: SANDBOX-387
                 URL: https://issues.apache.org/jira/browse/SANDBOX-387
             Project: Commons Sandbox
          Issue Type: Improvement
          Components: BeanUtils2
    Affects Versions: Nightly Builds
            Reporter: Benedikt Ritter


Currently there is no possibility to find out, if a property is readable and/or writable.
For example, one has to pass a value to {{setProperty(name).withValue(argument)}} and hope,
that the property is writeable (because a {{NoSucheMethodExcpetion}} will be thrown, if it
is not). For this reason it would be nice, if one could do something like:

{code:java}
if (on(myBean).isWritable("writeableProperty") {
    on(myBean).setProperty("writableProperty").withValue("This is a String value!");
}
{code}

Solution:

* Add {{public boolean isWritable(String propertyName)}} and {{public boolean isReadable(String
propertyName)}} to {{BeanAccessor}}.
* in {{isWritable()}} check if a {{PropertyDescriptor}} can be obtained from PropertyRegistry
(if not, throw {{NoSuchMethodException}}).
** if so, return true, if {{propertyDescriptor.getWriteMethod() != null}} and false otherwise.
* in {{isReadable()}} check if a {{PropertyDescriptor}} can be obtained from PropertyRegistry
(if not, throw {{NoSuchMethodException}}).
** if so, return true, if {{propertyDescriptor.getReadMethod() != null}} and false otherwise.

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