public String getCreatedBy() {
        checkSpecifiedProperty("createdBy");
        return convertEmptyToNull(createdBy);
    }

    public void setCreatedBy(String value) {
        registerModifiedProperty("createdBy");
        this.createdBy = value;
    }

    public Long getCreatedTime() {
        checkSpecifiedProperty("createdTime");
        return createdTime;
    }