Class hierarchies exploding

I'm trying to find a solution to my classes hierarchies which i think it will explode Say that i have an Event interface like this

public interface Event  {
String getId();

String getType();

String getName();

String getDescription();

Date getDate();

JsonElement getRaw();
}

public  class BasicEvent implements Event {
protected String        eventId;
protected String        eventType;
protected String        eventDescription;
protected String        eventName;
protected Date        time;
protected JsonElement   raw;

public BasicEvent(String eventId, String eventType, String eventDescription, String eventName, Date time,
                  JsonElement raw) {
    this.eventId = eventId;
    this.eventType = eventType;
    this.eventDescription = eventDescription;
    this.eventName = eventName;
    this.time = time;
    this.raw = raw;
}

public BasicEvent(String eventId, String eventType, Date time, JsonElement raw) {
    this(eventId, eventType, null, eventId, time, raw);
}

public BasicEvent(String eventId, String eventType, Date time, String eventName, String eventDescription) {
    this(eventId, eventType, eventDescription, eventName, time, null);
}

@Override
public String getId() {
    return this.eventId;
}

@Override
public String getType() {
    return this.eventType;
}

@Override
public String getName() {
    return this.eventName;
}

@Override
public String getDescription() {
    return this.eventDescription;
}

@Override
public Date getDate() {
    return this.time;
}


@Override
public JsonElement getRaw() {
    return raw;
}

public Map<String, Object> getData() {
    return new Gson().fromJson(raw, Map.class);
}

@Override
public String toString() {
    return "BasicEvent{" + "eventId=" + eventId + ", eventType=" + eventType + ", time=" + time + ", raw=" + raw
        + '}';
}
}

An event can be triggred from a system , from a device or from a zone so using inheritance i add 3 classes

public class ZoneEvent extends  BasicEvent {
private Long zoneId;

public ZoneEvent(BasicEvent event, Long zoneId) {
    super(event);
    this.zoneId = zoneId;
}

public Long getZoneId() {
    return zoneId;
}

public void setZoneId(Long zoneId) {
    this.zoneId = zoneId;
}
}


public class DeviceEvent extends BasicEvent {
private Long deviceId;
private String driverId;
private String deviceType;

public DeviceEvent(BasicEvent event, Long id, String driverId, String deviceType) {
    super(event);
    this.deviceId = id;
    this.deviceType = deviceType;
    this.driverId = driverId;

}

public String getDriverId() {
    return driverId;
}

public void setDriverId(String driverId) {
    this.driverId = driverId;
}

public void setDeviceId(DeviceId id) {
    this.deviceId = id;
}

public void setDeviceType(String deviceType) {
    this.deviceType = deviceType;
}

public DeviceId getDeviceId() {
    return deviceId;
}

public String getDeviceType() {
    return deviceType;
}
}


public class SystemEvent extends  BasicEvent {
private Long systemId;
public SystemEvent(BasicEvent event, Long systemId) {
    super(event);
    this.systemId=systemId;
}

public Long getSystemId() {
    return systemId;
}

public void setSystemId(Long systemId) {
    this.systemId = systemId;
}
}

Now an event can be a combination from these 3 classes an event can contain ZoneId and deviceId or deviceId and SystemId and my classes hierarchies will explode . is there any solution to this design? and using decorator can solve this king of problem?