org.apache.commons.cli
public class PatternOptionBuilder extends Object
Allows Options to be created from a single String. The pattern contains various single character flags and via an optional punctuation character, their expected type.
a | -a flag |
b@ | -b [classname] |
c> | -c [filename] |
d+ | -d [classname] (creates object via empty contructor) |
e% | -e [number] (creates Double/Long instance depeding on existing of a '.') |
f/ | -f [url] |
g: | -g [string] |
For example, the following allows command line flags of '-v -p string-value -f /dir/file'.
Options options = PatternOptionBuilder.parsePattern("vp:f/");
TODO These need to break out to OptionType and also to be pluggable.
Version: $Revision: 542144 $
Field Summary | |
---|---|
static Class | CLASS_VALUE Class class |
static Class | DATE_VALUE Date class |
static Class | EXISTING_FILE_VALUE FileInputStream class |
static Class | FILES_VALUE File array class |
static Class | FILE_VALUE File class |
static Class | NUMBER_VALUE Number class |
static Class | OBJECT_VALUE Object class |
static Class | STRING_VALUE String class |
static Class | URL_VALUE URL class |
Method Summary | |
---|---|
static Object | getValueClass(char ch) Retrieve the class that |
static boolean | isValueCode(char ch) Returns whether |
static Options | parsePattern(String pattern) Returns the Options instance represented by
|
Retrieve the class that ch
represents.
Parameters: ch the specified character
Returns: The class that ch
represents
Returns whether ch
is a value code, i.e.
whether it represents a class in a pattern.
Parameters: ch the specified character
Returns: true if ch
is a value code, otherwise false.