boolean (Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; final Variable variable = (Variable)o; if (myExpression != null ? !myExpression.equals(variable.myExpression) : variable.myExpression != null) return false; return !(myName != null ? !myName.equals(variable.myName) : variable.myName != null); }