classycle.util

Class WildCardPattern

java.lang.Object

classycle.util.WildCardPattern

All Implemented Interfaces:

StringPattern

public class WildCardPattern
extends Object
implements StringPattern

Wildcard string pattern matching class. Only '*' is interpreted as wild card meaning the occurance of any number of arbitray characters.

This is a thread-safe immutable class.

Example: The code snippet

   StringPattern pattern = new WildCardPattern("Hello*");
   System.out.println(pattern.matches("Hello world!"));
   System.out.println(pattern.matches("Hi Jim!"));
 

will produce the output

 true
 false
 

Author:

Franz-Josef Elmer

Constructor Summary

Constructors

Constructor and Description
WildCardPattern(String pattern) Creates an instance based on the specified pattern.

Method Summary

Methods

Modifier and Type	Method and Description
static StringPattern	createFromsPatterns(String patterns, String delimiters) Returns a StringPattern object based on a sequences of wild-card patterns separated by the specified delimiter characters.
boolean	matches(String string) Returns true if the specified string matches the pattern.
String	toString() Returns the pattern as delivered to the constructor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

WildCardPattern

public WildCardPattern(String pattern)

Creates an instance based on the specified pattern.

Parameters:

pattern - Pattern which may contain '*' wildcard characters. Must be not null.

Method Detail

createFromsPatterns

public static StringPattern createFromsPatterns(String patterns,
                                String delimiters)

Returns a StringPattern object based on a sequences of wild-card patterns separated by the specified delimiter characters. The return object matches a string if at least one of the wild-card pattern matches.

Parameters:

patterns - Wild-card patterns separated by delimiters defined in delimiters. The actual pattern will be trimed. That is, leading and trailing white-space characters are removed.

delimiters - Recognized delimiters.

Returns:

toString

public String toString()

Returns the pattern as delivered to the constructor.

Overrides:

toString in class Object

matches

public boolean matches(String string)

Description copied from interface: StringPattern

Returns true if the specified string matches the pattern.

Specified by:

matches in interface StringPattern

Parameters:

string - String to be matched. Can be null.

Returns:

false if string == null.