CSV Column Iterator

CSVColIterator.cls.java

public class CSVColIterator implements Iterator<String> {
	
    private String colDelimiter=',';
    private String textQualifier='"';
    private String row='';
    private Integer currentIndex=0;
	
    public CSVColIterator(String row){
        this.row = row;
    }
    
    public Boolean hasNext(){
        return currentIndex < row.length();
    }
    
    public String next(){
        String token='';
        if(row.substring(currentIndex,currentIndex+1)==textQualifier){
            Integer key=row.indexOf(textQualifier,currentIndex+1);
            token = row.substring(currentIndex+1,key);
            this.currentIndex = key+1;
        }else{
            Integer key=row.indexOf(colDelimiter,currentIndex);
            if(key==-1){
                key = row.length();
            }
            token = row.substring(currentIndex,key);
            this.currentIndex=key+1;
        }
        return token;
    }
}