Re: WOImage: Load Any image with certain prefix...
Re: WOImage: Load Any image with certain prefix...
- Subject: Re: WOImage: Load Any image with certain prefix...
- From: Nathan Walker <email@hidden>
- Date: Thu, 30 Jun 2005 15:19:27 -0400
| This worked perfectly....wow, you guys really rock...
I really strive to be this good. Thanks a million!
Efficiency question: If I call this 5-6 times throughout every page in my application, would that create a performance hit having to loop through the loop so many times and having to hit "listFiles()" each time. Does that even matter ? or should be concerned with ? Would it be best to create a variable once in the Application class for File[] fileList = aDirectory.listFiles(); so that only needs to be called once and reference that variable in the utility method ?
Things such as this, I'm not to fresh on.
On Jun 30, 2005, at 2:49 PM, Robert Walker wrote: public static String fileNameStartingWith(File aDirectory, String pattern) throws RuntimeException { if (!aDirectory.isDirectory()) { throw new RuntimeException("Invalid directory!"); }
File[] fileList = aDirectory.listFiles(); File aFile = null; for (int i = 0; i < fileList.length; i++) { aFile = fileList[i]; if (aFile.getName().startsWith(pattern)) { return aFile.getName(); } } return null; } |
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