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我想檢查一個文件是否存在於使用java的documentum中的特定文件夾中。如何在java中運行dql搜索查詢?
以下是我的代碼,
import com.documentum.com.DfClientX;
import com.documentum.com.IDfClientX;
import com.documentum.fc.client.DfQuery;
import com.documentum.fc.client.IDfClient;
import com.documentum.fc.client.IDfCollection;
import com.documentum.fc.client.IDfFolder;
import com.documentum.fc.client.IDfQuery;
import com.documentum.fc.client.IDfSession;
import com.documentum.fc.client.IDfSessionManager;
import com.documentum.fc.common.DfException;
import com.documentum.fc.common.DfId;
import com.documentum.fc.common.IDfLoginInfo;
import com.documentum.operations.IDfDeleteOperation;
public class CountFiles {
// Documentum target repository where the files will be imported
private static final String REPO_NAME = "rep";
public static void main(String[] args) throws Exception {
try {
String username = "user";
String password = "pwd";
System.out.println("Starting to connect ...");
IDfSessionManager sessMgr = createSessionManager();
addIdentity(sessMgr, username, password);
IDfSession sess = sessMgr.getSession(REPO_NAME);
System.out.println("Successfully connected to the server.");
queryDocumentum(sess);
} catch(Exception ex) {
System.out.println(ex);
ex.printStackTrace();
}
}
private static void queryDocumentum(IDfSession sess) throws DfException {
IDfQuery query = new DfQuery();
String queryStr= "select count(*) from dm_document WHERE FOLDER ('/XXX/YYY',DESCEND) search document contains 'abc.pdf' ";
query.setDQL(queryStr);
IDfCollection coll = query.execute(sess,IDfQuery.DF_EXEC_QUERY);
while(coll.next())
{
System.out.println("Result of method: " + coll.getValueAt(0));
}
coll.close();
}
/**
* Creates a new session manager instance. The session manager does not have
* any identities associated with it.
*
* @return a new session manager object.
* @throws DfException
*/
private static IDfSessionManager createSessionManager()
throws Exception {
IDfClientX clientX = new DfClientX();
IDfClient localClient = clientX.getLocalClient();
IDfSessionManager sessMgr = localClient.newSessionManager();
System.out.println("Created session manager.");
return sessMgr;
}
/**
* Adds a new identity to the session manager.
*
*/
private static void addIdentity(final IDfSessionManager sm,
final String username, final String password)
throws Exception {
IDfClientX clientX = new DfClientX();
IDfLoginInfo li = clientX.getLoginInfo();
li.setUser(username);
li.setPassword(password);
// check if session manager already has an identity.
// if yes, remove it.
if(sm.hasIdentity(REPO_NAME)) {
sm.clearIdentity(REPO_NAME);
System.out.println("Cleared identity on :" + REPO_NAME);
}
sm.setIdentity(REPO_NAME, li);
System.out.println("Set up identity for the user.");
}
}
我收到以下異常 - [DM_QUERY_E_SYNTAX]錯誤: 「一個解析器錯誤(語法錯誤)發生在附近」 從dm_document SELECT COUNT(*) 。其中folder( '/ XXX/YYY',下降)搜索文檔中包含 'abc.pdf'」什麼是查詢/代碼問題
它的工作。感謝Karolbe。 – Moizudddin