问题描述
我的列表视图中有一个用户列表，通过从documentum检索数据来填充。如果我点击这个最少的任何一行（每行代表一个用户），我应该能够看到他们列出的所有信息。（这是我的问题）
I have a list of users in my list view which is populated by retrieving data from documentum . If I click on any row of this least (each row represent one user) I should be able to see all of their information listed down .(This is my problem )
public void selectedItemFromListView(){
selected = lwAllUserGrp.getSelectionModel().getSelectedItem();
System.out.println(selected);
String query =" select * from dm_user where user_name = '@aclName'" ;
String test = query.replace("@aclname", selected);
GetDataWithDqlProfile(_session , query , "user_login_name" , "user_address" , "user_state" );
System.out.println(user.getAddress());
System.out.println(user.getState());
System.out.println(user.getUsername());
}
如果我点击一行列表视图我就能成功看看谁被选中，我需要通过DQL从documentum中检索该用户名（同一个人）的所有其他属性。
if I click on a row of list view I can successfully see who is selected and I need to retrieve all the other attributes of that username (same person) from documentum via DQL .
private void GetDataWithDqlProfile(IDfSession session, String Query, String username , String address , String state ) {
try {
IDfQuery UpdateQuery = new DfQuery();
UpdateQuery.setDQL(Query);
IDfCollection col = UpdateQuery.execute(_session, IDfQuery.DF_QUERY);
user.setAddress(col.getString(username));
user.setUsername(col.getString(address));
user.setState(col.getString(state));
col.close();
} catch (Exception e) {
Alert alert = new Alert(Alert.AlertType.ERROR, e.getMessage());
alert.showAndWait();
Logs.WriteLog(LoginController.Repository + ",User:" + LoginController.Username, "DQL Query", e.toString());
e.getStackTrace();
}
我的输出是：
User's name
null
null
null
我在DQL测试器中尝试过DQL查询，效果很好
推荐答案
对于你们之后提到这个问题的人我是如何解决这个问题的：
For those of you referring to this question later here is how I solved the problem :
public ArrayList<User> GetDataWithDqlpro(IDfSession session, String Query, String username , String state , String address) {
try {
IDfQuery UpdateQuery = new DfQuery();
UpdateQuery.setDQL(Query);
IDfCollection col = UpdateQuery.execute(_session, IDfQuery.DF_QUERY);
while (col.next()) {
list.add( new User(col.getString(username),col.getString(address) , col.getString(state)));
}
col.close();
}catch (Exception e) {
Alert alert = new Alert(Alert.AlertType.ERROR, e.getMessage());
alert.showAndWait();
Logs.WriteLog(LoginController.Repository + ",User:" + LoginController.Username, "DQL Query", e.toString());
e.getStackTrace();
}
return (ArrayList<User>) list;
}
public void selectedItemFromListView(){
selected = lwAllUserGrp.getSelectionModel().getSelectedItem();
System.out.println(selected);
String Query = "select user_login_name , user_state , user_address from dm_user where user_login_name ='@aclname'";
Query = Query.replace("@aclname",selected );
ArrayList<User> allUserNames = GetDataWithDqlpro(_session, Query, "user_login_name","user_address","user_state");
for (int i = 0 ; i <= allUserNames.size()-1 ; i++ ){
if (selected.compareToIgnoreCase(allUserNames.get(i).getUsername() ) == 0){
System.out.println(allUserNames.get(i).getState() );
System.out.println(allUserNames.get(i).getAddress() );
System.out.println(allUserNames.get(i).getUsername() );
}
}
}
值得一提的是，我有一个名为User with class with constructor and get and set methods
Worth mentioning that I have a class called User with constructor and get and set methods
我希望它将帮助一些人：）
这篇关于通过DQL从documentum检索一行数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！