Any problem using singleton? [Question]

[raizoor]

Hi Team,

Can anyone imagine or already get any problem to use a that lib (RatcliffObershelp specificly) in a Singleton class?

My use :

import info.debatty.java.stringsimilarity.RatcliffObershelp;

public class StringSimilarityCalculator {

    private static StringSimilarityCalculator stringSimilarityCalculator;
    private static RatcliffObershelp calculo = new RatcliffObershelp();
    private static final double minSimilaridadeEndereco = 0.90;

    private StringSimilarityCalculator(){}

    public static StringSimilarityCalculator getInstance() {

        if(stringSimilarityCalculator == null){

            stringSimilarityCalculator = new StringSimilarityCalculator();
        }

        return stringSimilarityCalculator;
    }

    public boolean isStringEnderecoSimilar(String enderecoPagador, String enderecoPagadorBanco){

        return calculo.similarity(enderecoPagador.toLowerCase(),
                enderecoPagadorBanco.toLowerCase()) >= minSimilaridadeEndereco;
    }
}

Thanks !!