Package org.cdlib.mrt.utility

Class RegexPatternCache

java.lang.Object

org.cdlib.mrt.utility.RegexPatternCache

public class RegexPatternCache
extends Object

 RegexPatternCache

 Provides a cache for compiled Regex compiled Patterns
 

Author:

David Loy

Constructor Summary

Constructors

Constructor	Description
RegexPatternCache()

Method Summary

Modifier and Type	Method	Description
void	clear()	Empty cache
Pattern	getPattern(String patternS)	look up regular expression pattern in cache - if not found create new pattern, save pattern in cache, and return new compiled pattern
Pattern	getPattern(String patternS, int flags)	look up regular expression pattern in cache - if not found create new pattern, save pattern in cache, and return new compiled pattern

Methods inherited from class java.lang.Object

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

Constructor Details

RegexPatternCache

public RegexPatternCache()

Method Details

getPattern

public Pattern getPattern(String patternS)

look up regular expression pattern in cache - if not found create new pattern, save pattern in cache, and return new compiled pattern

Parameters:

patternS - string form of pattern to be processed

Returns:

compiled Regex pattern

getPattern

public Pattern getPattern(String patternS,
 int flags)

look up regular expression pattern in cache - if not found create new pattern, save pattern in cache, and return new compiled pattern

Parameters:

patternS - string form of pattern to be processed

flags - flags used for regex compilation

Returns:

compiled Regex pattern

clear

public void clear()

Empty cache