RegularExpression

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com.fdsapi
Class RegularExpression

java.lang.Object
  |
  +--com.fdsapi.RegularExpression

public class RegularExpression
extends java.lang.Object

This class is used to run Regular Expressions. It uses the jakarta projects ORO regular expression parser. Java 1.2 did not have regular expressions built into the language. By abstracting the concept of Regular Expressions into a class I control dependencies of ORO are not embedded throughtout my code and only this class needs to be changed if I want to go to the newer java 1.4 Regular Expression approach. If I do this the FormattedDataSet API will not work with java 1.2 (not desireable at this time).

This code requires jakartas ORO jar to be compiled: (http://jakarta.apache.org/oro/)

Sample usage from main method:

  final String RE="##(hello|world)"; 

    RegularExpression re=new RegularExpression(RE);
    re.setSourceString("##hello ##miscData1 ##steve ##souza ##world ##this ##rownum ##headerthis ##3");

    while (re.next()) {
        System.out.println(re.getParen(0));
        System.out.println(re.getParen(1));>
    }

View Code

Constructor Summary

RegularExpression(java.lang.String regularExpressionStr)


Method Summary

static RegularExpression createInstance(java.lang.String regularExpressionStr)
          Creates a RegularExpression object with the specified regular expression

java.lang.String getParen(int parenNumber)
          Get contents of the passed paren number

static void main(java.lang.String[] args)
          Sample code for testing.

boolean next()
          returns true while the input still has pattern matches.

void setSourceString(java.lang.String sourceString)
          Set source string to be searched for the regular expression passed into the constructor

java.lang.String[] split(java.lang.String stringToSplit)


Methods inherited from class java.lang.Object

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

Constructor Detail