SubscriptionId.java

package combo;

final class SubscriptionId {

    private final String topicName;
    private final String comboId;

    SubscriptionId(final String topicName, final String comboId) {
        this.topicName = topicName;
        this.comboId = comboId;
    }

    String topicName() {
        return topicName;
    }

    String comboId() {
        return comboId;
    }

    @Override public String toString() {
        return "SubscriptionId{" +
                "topicName='" + topicName + '\'' +
                ", comboId='" + comboId + '\'' +
                '}';
    }
}