[brailleblaster] Re: Where should properties files go?
- From: Michael Whapples <mwhapples@xxxxxxx>
- To: brailleblaster@xxxxxxxxxxxxx
- Date: Mon, 06 Dec 2010 10:40:19 +0000
Hello,
For these properties files the path you specify is relative to the path
of the ClassLoader use in ResourceBundle.getBundle. If you use
ResourceBundle.getBundle(baseName, locale) then this will use the
ClassLoader this.getClass().getClassLoader(). This will result in the
properties file being found relative to the base of the package
structure and can be within a jar.
So as an example the English UK file which has menu messages might be
called MenuMessages_en_GB.properties and might be placed in a directory
which would relate to the package org.brailleblaster.i18n. This would
mean that the baseName would be org.brailleblaster.i18n.MenuMessages.
As to how ResourceBundle and the getBundle method works, it would be an
example of a factory pattern
http://www.javaworld.com/javaworld/javaqa/2001-05/02-qa-0511-factory.html.
It is worth noting that article doesn't go very far, but the factory
method can make decisions based on parameters passed in. So while
ResourceBundle is abstract, you may still make use of its static methods
and instances of subclasses can appear as a type ResourceBundle due to
polymorphism, meaning you need never know what specific type is being used.
Michael Whapples
On 06/12/10 08:59, John J. Boyer wrote:
It looks like ResourceBundle.getBundle will look first for a subclass
with a given candidate name and then for a properties file with this
name. Where should such properties files go? Would it be acceptable to
place them in a subdirectory of brailleblaster called propertiesfiles?
Since ResourceBundle is an abstract class, it canot be instantiated. I'm
rather puzzled about how all this fits together.
John
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