java从Documentum查询中读取自定义双精度值

2 月，3 周 Questions & Answers 48

我尝试使用Documentum API计算平均值，如下所示：

final IDfQuery checkMediaDocs = (IDfQuery) new DfQuery();
IDfCollection mediaDocs = null;
checkMediaDocs.setDQL("select sum(tot_doc_daily)/count(*) as mediaglobale from my_table");
mediaDocs = checkTodayDocs.execute(session, IDfQuery.DF_READ_QUERY);
int media = 0;
while (mediaDocs.next()) {
    media = (int) mediaDocs.getDouble("mediaglobale");
}

但是，应用程序不工作，返回此错误：

101884 [SchedulerFactoryBean_Worker-1] ERROR it.reply.square.isa.daemon.DatExporterWorker  - [DM_API_E_BADATTRNAME]error:  "Bad attribute name 'mediaglobale' for document/object."
DfTypedObjectException:: THREAD: SchedulerFactoryBean_Worker-1; MSG: [DM_API_E_BADATTRNAME]error:  "Bad attribute name 'mediaglobale' for document/object."; ERRORCODE: 100; NEXT: null
    at com.documentum.fc.client.impl.typeddata.LiteType.getAttr(LiteType.java:171)
    at com.documentum.fc.client.impl.typeddata.LiteType.getAttrIndex(LiteType.java:226)
    at com.documentum.fc.client.impl.typeddata.AbstractTypedData.getAttrIndex(AbstractTypedData.java:697)
    at com.documentum.fc.client.impl.typeddata.AbstractTypedData.get(AbstractTypedData.java:129)
    at com.documentum.fc.client.impl.typeddata.AbstractTypedData.getString(AbstractTypedData.java:159)
    at com.documentum.fc.client.DfTypedObject.getStringRaw(DfTypedObject.java:655)
    at com.documentum.fc.client.DfTypedObject.doGetString(DfTypedObject.java:623)
    at com.documentum.fc.client.impl.collection.TypedDataCollection.doGetString(TypedDataCollection.java:91)

如何正确检索自定义双精度值？若“mediaglobale”是一个简单的计数，那个么我可以使用getInt（）检索它，而不会出错：所以，这里的getDouble（）似乎有问题

谢谢

Python中文网

有 Java 编程相关的问题?

java从Documentum查询中读取自定义双精度值

共 (1) 个答案

# 1 楼答案