RodrigoPinho

package com.rodrigopinho.java17.patternmatching;

sealed interface Vehicle permits Car, Bus, Motorcycle {
    static String sealedVehicle(Vehicle v) {
        return switch (v) {
            case Bus b -> "Vehicle type: Bus";
            case Car c -> "Vehicle type: Car";
            case Motorcycle m -> "Vehicle type: Motorcycle";
        };
    }

RodrigoPinho

    public static String getGuardedPatternMessage(Object object) {
        return switch (object) {
            case String s && (s.length() > 10)->
                    "Big string, size: " + s.length();
            case String s  ->
                    "Small string, size: " + s.length();
            default ->  "Unsupported Object: " + object.getClass().getSimpleName();
        };
    }

RodrigoPinho

    public static String getPatternMatchingMessage(Object object) {
        return switch (object) {
            case String s -> "Type: String, value: " + s;
            case Integer i -> "Type: Integer, value: " + i;
            case null -> "Null object";
            default ->  "Type: Unknown, value: " + object.toString();
        };
    }

RodrigoPinho

public final class UtilityClassWithLombok {
  private static final int CONSTANT = 5;

  private UtilityClassWithLombok() {
      throw new java.lang.UnsupportedOperationException("This is a utility class and cannot be instantiated");
  }

  public static int addSomething(int in) {
      return in + CONSTANT;

RodrigoPinho

import lombok.experimental.UtilityClass;

@UtilityClass
public class UtilityClassWithLombok {
	private final int CONSTANT = 5;

	public int addSomething(int in) {
	    return in + CONSTANT;
	}
}

RodrigoPinho

public final class UtilityClass {

    // Private constructor to prevent instantiation
    private UtilityClass() {
        throw new UnsupportedOperationException();
    }
    //public static methods here

}

RodrigoPinho

# This is build configuration for Java and Docker.
image: maven:3.3.9

options:
  docker: true
pipelines:
  custom:
    schedule-ci: #Continuous Integration
    - step:
        caches:

RodrigoPinho

FROM jboss/wildfly
ADD ./target/app.war /opt/jboss/wildfly/standalone/deployments/