我不确定我在这里做错了什么?它抱怨“仅当所有过滤器都是'等于'过滤器时才支持连接。” 执行查询时。我怎样才能解决这个问题?
Query query = pm.newQuery(ItemInfo.class);
if (lastSyncDate != null) {
query.declareVariables("DeviceInfo deviceInfo");
query.setFilter("this.toDevices.contains(deviceInfo) && " +
"deviceInfo.phoneNumber == numberParam && createdDate > lastSyncDateParam");
query.declareParameters("String numberParam, java.util.Date lastSyncDateParam");
map.put("lastSyncDateParam", lastSyncDate);
} else {
query.declareVariables("DeviceInfo deviceInfo");
query.setFilter("this.toDevices.contains(deviceInfo) && deviceInfo.phoneNumber == numberParam");
query.declareParameters("String numberParam");
}
map.put("numberParam", "123456");
query.setOrdering("createdDate desc");
@PersistenceCapable(identityType = IdentityType.APPLICATION, detachable = "true")
public class ItemInfo {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long id;
@Persistent
private String number;
@Persistent
private List<DeviceInfo> toDevices;
}