The Result class

Result.java

public class Result
{
	public static final Result	SUCCESS	= new Result(true, "");

	private boolean				success;
	private String				message;

	private Result(boolean success, String message)
	{
		this.success = success;
		this.message = message;
	}

	public static Result success()
	{
		return SUCCESS;
	}

	public static Result error(String message)
	{
		return new Result(false, message);
	}

	public void throwExceptionOnError()
	{
		if (!success) throw new RuntimeException(message);
	}

	public boolean succeeded()
	{
		return this.success;
	}

	public boolean failed()
	{
		return !this.success;
	}

	public String getMessage()
	{
		return this.message;
	}

	@Override
	public boolean equals(Object obj)
	{
		return Boolean.valueOf(success).equals(obj);
	}

}