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How to delete the repeated occurrences of a file in documentum if it exists more than once using dql query in java?

I want to delete repeated occurrence of a file in documentum leaving only one
file if it exists more than once.
Following is my code.
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) and object_name = 'abc.pdf' ";
query.setDQL(queryStr);
IDfCollection coll = query.execute(sess,IDfQuery.DF_EXEC_QUERY);
while(coll.next())
{
int count = coll.getValueAt(0);
if(count>1)
{
String qry = "delete dm_sysobject (all) objects where object_name='abc.pdf';";
IDfQuery q= new DfQuery();
query.setDQL(qry);
IDfCollection col = query.execute(sess,IDfQuery.DF_EXEC_QUERY);
}
}
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." );
}
}
But something is wrong in the way that I am doing the operation. It is not working.I am not giving the path of the file here because I don't know the exact path of the file.Without giving the path of the file is it possible to delete all the occurrences of the file except one.

If you are coding the logic in Java anyway have a look at the IDfOperatiins. Also this method for doing bulk stuff is described well in the guides.

I would suggest the following changes in your DQL and in the logic, this is mostly because you are using DFC API:
DQL:
//Retrieves all the root object ids of the documents version tree where there are duplicates as their name.
//Here I thought the latest created document is the one to keep, you can adapt it to your needs - **see ORDER by clause**.
select i_chronicle_id from dm_document where folder('/XXX/YYYY', DESCEND) and object_name in (select object_name from dm_document where folder('/XXX/YYYY', DESCEND) and object_name = 'abc.pdf' group by object_name having count(*) > 1) order by r_creation_date asc;
Logic:
//"pseudo-code" - deletes the entire version tree of the document that is not the last in the returned list
while 'not last i_chronicle_id from the result collection'
//execute this dql:
`delete dm_document (all) objects where i_chronicle_id='<i_chronicle_id from the list>';`
Hope this helps,
Emilian
P.S. The DQLs I have tested against a CS 7.3

my function cant get called in JavaFx

I have created a list view in FXML with the id of "lwAllUserGrp" I can use that id and the following function to populate it :
public void populateAllUserList() {
lwAllUserGrp.getItems().clear();
///////////////////////////////////////////////
String filter = txtSearch.getText();
String Query = "Select user_name, user_login_name, user_state from dm_user where r_is_group = 0 and user_state = 0 and (user_name not like 'dm%' and user_name not like 'svc%' and user_name not like 'lexo%' ) order by user_name";
ArrayList<String> AllUser = GetDataWithDql(_session, Query, "user_name");
for (String x : AllUser) {
if (x.toLowerCase().contains(filter.toLowerCase())){
lwAllUserGrp.getItems().add(x);
}
}
}
But when I add the following function to see which row is selected :
public void selectedItemFromListView(){
// System.out.println("blabla");
selected = lwAllUserGrp.getSelectionModel().getSelectedItem();
// System.out.println(selected);
String Query = "select user_name , user_state , user_address, user_login_name , user_web_page from dm_user where user_name ='#aclname'";
Query = Query.replace("#aclname",selected );
ArrayList<User> allUserNames = GetDataWithDqlpro(_session, Query, "user_name","user_address","user_state","user_login_name","user_web_page");
for (int i = 0 ; i < allUserNames.size() ; i++ ){
if (selected.compareToIgnoreCase(allUserNames.get(i).getUsername() ) == 0){
username.setText(selected);
login_Name.setText(allUserNames.get(i).getuserLoginName());
state.setText(allUserNames.get(i).getState());
address.setText(allUserNames.get(i).getAddress());
WP.setText(allUserNames.get(i).getuserWP());
}
}
}
my function doesnt get called at all ? any one knows the reason why ?

If you aren't calling the function, it isnt going to call itself :) You'd have to add it as a listener or whatever. In your case,, you were missing the listener assignment in your FXML (I had a hunch that's why i asked). As you discovered in comments, adding the appropriate onMouseClicked specifier in your FXML should take care of it.

CommandTable Cystal Report Error

I have a Crystal Report that was written using a complex SQL and I'm trying to invoke that using the Crystal Report Java API. This report has a Command object associated with it.
I load the report and set the connection parameters.
Then I try to set the Connection information to the current JDBC Profile. Meaning Test Environment credentials.
I get an exception. I tried with Version 11. Version 12 both. None of them seems to be working.
I'm getting the exception when I invoke the following piece of code. This piece of code works just fine with reports without "Command" sqls.
try{
clientDoc.getDatabaseController().setTableLocation(
origTable, newTable);
}catch(Exception ex){
ex.printStackTrace();
}
See below for the entire code. Please reply if anyone knows how to work around this.
private static void changeDataSource(ReportClientDocument clientDoc,
String reportName, String tableName, String username,
String password, String connectionURL, String driverName,
String jndiName) throws ReportSDKException {
PropertyBag propertyBag = null;
IConnectionInfo connectionInfo = null;
ITable origTable = null;
ITable newTable = null;
// Declare variables to hold ConnectionInfo values.
// Below is the list of values required to switch to use a JDBC/JNDI
// connection
String TRUSTED_CONNECTION = "false";
String SERVER_TYPE = "JDBC (JNDI)";
String USE_JDBC = "true";
String DATABASE_DLL = "crdb_jdbc.dll";
String JNDI_OPTIONAL_NAME = jndiName;
String CONNECTION_URL = connectionURL;
String DATABASE_CLASS_NAME = driverName;
// Declare variables to hold database User Name and Password values
String DB_USER_NAME = username;
String DB_PASSWORD = password;
System.out.println("Trusted_Connection:" + TRUSTED_CONNECTION);
System.out.println("Server Type:" + SERVER_TYPE);
System.out.println("Use JDBC:" + USE_JDBC);
System.out.println("Database DLL:" + DATABASE_DLL);
System.out.println("JNDIOptionalName:" + JNDI_OPTIONAL_NAME);
System.out.println("Connection URL:" + CONNECTION_URL);
System.out.println("Database Class Name:" + DATABASE_CLASS_NAME);
System.out.println("DB_USER_NAME:" + DB_USER_NAME);
System.out.println("DB_PASSWORD:" + DB_PASSWORD);
// Obtain collection of tables from this database controller
if (reportName == null || reportName.equals("")) {
Tables tables = clientDoc.getDatabaseController().getDatabase()
.getTables();
for (int i = 0; i < tables.size(); i++) {
origTable = tables.getTable(i);
if (tableName == null || origTable.getName().equals(tableName)) {
newTable = (ITable) origTable;
newTable.setQualifiedName(origTable.getAlias());
connectionInfo = newTable.getConnectionInfo();
// Set new table connection property attributes
propertyBag = new PropertyBag();
// Overwrite any existing properties with updated values
propertyBag.put("Trusted_Connection", TRUSTED_CONNECTION);
propertyBag.put("Server Type", SERVER_TYPE);
propertyBag.put("Use JDBC", USE_JDBC);
propertyBag.put("Database DLL", DATABASE_DLL);
propertyBag.put("JNDIOptionalName", JNDI_OPTIONAL_NAME);
propertyBag.put("Connection URL", CONNECTION_URL);
propertyBag.put("Database Class Name", DATABASE_CLASS_NAME);
connectionInfo.setAttributes(propertyBag);
connectionInfo.setUserName(DB_USER_NAME);
connectionInfo.setPassword(DB_PASSWORD);
// Update the table information
try{
clientDoc.getDatabaseController().setTableLocation(
origTable, newTable);
}catch(Exception ex){
ex.printStackTrace();
}
}
}
}
// Next loop through all the subreports and pass in the same
// information. You may consider
// creating a separate method which accepts
if (reportName == null || !(reportName.equals(""))) {
IStrings subNames = clientDoc.getSubreportController()
.getSubreportNames();
for (int subNum = 0; subNum < subNames.size(); subNum++) {
Tables tables = clientDoc.getSubreportController()
.getSubreport(subNames.getString(subNum))
.getDatabaseController().getDatabase().getTables();
for (int i = 0; i < tables.size(); i++) {
origTable = tables.getTable(i);
if (tableName == null
|| origTable.getName().equals(tableName)) {
newTable = (ITable) origTable;
newTable.setQualifiedName(origTable.getAlias());
// Change connection information properties
connectionInfo = newTable.getConnectionInfo();
// Set new table connection property attributes
propertyBag = new PropertyBag();
// Overwrite any existing properties with updated values
propertyBag.put("Trusted_Connection",
TRUSTED_CONNECTION);
propertyBag.put("Server Type", SERVER_TYPE);
propertyBag.put("Use JDBC", USE_JDBC);
propertyBag.put("Database DLL", DATABASE_DLL);
propertyBag.put("JNDIOptionalName", JNDI_OPTIONAL_NAME);
propertyBag.put("Connection URL", CONNECTION_URL);
propertyBag.put("Database Class Name",
DATABASE_CLASS_NAME);
connectionInfo.setAttributes(propertyBag);
connectionInfo.setUserName(DB_USER_NAME);
connectionInfo.setPassword(DB_PASSWORD);
// Update the table information
clientDoc.getSubreportController()
.getSubreport(subNames.getString(subNum))
.getDatabaseController()
.setTableLocation(origTable, newTable);
}
}
}
}
}

Add after this line of yours
connectionInfo.setPassword(DB_PASSWORD);
newTable.setConnectionInfo(connectionInfo);
//This will add connection parameters to the new table
Instead of
clientDoc.getDatabaseController().setTableLocation(origTable, newTable);
replace this with
clientDoc.getDatabaseController ().setTableLocation (newTable, tables.getTable(i));

BIRT: How to remove a dataset parameter programmatically

I want to modify an existing *.rptdesign file and save it under a new name.
The existing file contains a Data Set with a template SQL select statement and several DS parameters.
I'd like to use an actual SQL select statement which uses only part of the DS parameters.
However, the following code results in the exception:
Exception in thread "main" `java.lang.RuntimeException`: *The structure is floating, and its handle is invalid!*
at org.eclipse.birt.report.model.api.StructureHandle.getStringProperty(StructureHandle.java:207)
at org.eclipse.birt.report.model.api.DataSetParameterHandle.getName(DataSetParameterHandle.java:143)
at org.eclipse.birt.report.model.api.DataSetHandle$DataSetParametersPropertyHandle.removeParamBindingsFor(DataSetHandle.java:851)
at org.eclipse.birt.report.model.api.DataSetHandle$DataSetParametersPropertyHandle.removeItems(DataSetHandle.java:694)
--
OdaDataSetHandle dsMaster = (OdaDataSetHandle) report.findDataSet("Master");
HashSet<String> bindVarsUsed = new HashSet<String>();
...
// find out which DS parameters are actually used
HashSet<String> bindVarsUsed = new HashSet<String>();
...
ArrayList<OdaDataSetParameterHandle> toRemove = new ArrayList<OdaDataSetParameterHandle>();
for (Iterator iter = dsMaster.parametersIterator(); iter.hasNext(); ) {
OdaDataSetParameterHandle dsPara = (OdaDataSetParameterHandle)iter.next();
String name = dsPara.getName();
if (name.startsWith("param_")) {
String bindVarName = name.substring(6);
if (!bindVarsUsed.contains(bindVarName)) {
toRemove.add(dsPara);
}
}
}
PropertyHandle paramsHandle = dsMaster.getPropertyHandle( OdaDataSetHandle.PARAMETERS_PROP );
paramsHandle.removeItems(toRemove);
What is wrong here?
Has anyone used the DE API to remove parameters from an existing Data Set?

I had similar issue. Resolved it by calling 'removeItem' multiple times and also had to re-evaluate parametersIterator everytime.
protected void updateDataSetParameters(OdaDataSetHandle dataSetHandle) throws SemanticException {
int countMatches = StringUtils.countMatches(dataSetHandle.getQueryText(), "?");
int paramIndex = 0;
do {
paramIndex = 0;
PropertyHandle odaDataSetParameterProp = dataSetHandle.getPropertyHandle(OdaDataSetHandle.PARAMETERS_PROP);
Iterator parametersIterator = dataSetHandle.parametersIterator();
while(parametersIterator.hasNext()) {
Object next = parametersIterator.next();
paramIndex++;
if(paramIndex > countMatches) {
odaDataSetParameterProp.removeItem(next);
break;
}
}
if(paramIndex < countMatches) {
paramIndex++;
OdaDataSetParameter dataSetParameter = createDataSetParameter(paramIndex);
odaDataSetParameterProp.addItem(dataSetParameter);
}
} while(countMatches != paramIndex);
}
private OdaDataSetParameter createDataSetParameter(int paramIndex) {
OdaDataSetParameter dataSetParameter = StructureFactory.createOdaDataSetParameter();
dataSetParameter.setName("param_" + paramIndex);
dataSetParameter.setDataType(DesignChoiceConstants.PARAM_TYPE_INTEGER);
dataSetParameter.setNativeDataType(1);
dataSetParameter.setPosition(paramIndex);
dataSetParameter.setIsInput(true);
dataSetParameter.setIsOutput(false);
dataSetParameter.setExpressionProperty("defaultValue", new Expression("<evaluation script>", ExpressionType.JAVASCRIPT));
return dataSetParameter;
}

Challenging token error

I improved the structure after a good observation from [http://stackoverflow.com/users/1690199/v-k] I am still getting a token error even though the syntax looks correct to me. More comments and critiques will be useful and acknowledged here.
import de.bezier.data.sql.*;
PostgreSQL pgsql;
Float val;
void setup()
{
size( 100, 100 );
println(val);
}
Token error identified in Processing 2 at Class Database.
Class Database
{
String user = "user";
String pass = "pass";
String database = "db";
Float val;
Database (Float col) {
val = col;
}
void database_connection( col )
{
//sets up database
pgsql = new PostgreSQL( this, "127.0.0.1", database, user, pass );
if ( pgsql.connect() )
{
pgsql.query( "SELECT col FROM table ORDER BY col DESC LIMIT 1; " );
return( pgsql.getFloat("col") );
}
else
{
println ("failed to connect to the database");
}
}
}
OLD ISSUE: Class structure addressed after a great observation from [http://stackoverflow.com/users/1690199/v-k]
import de.bezier.data.sql.*;
.....
.....
Old code removed for clarity of this issue.

Classes don't take arguments. Also it is class not Class... Am i missing something? Look, a general sample:
class Database {
String user = "user";
String pass = "pass";
String database = "db";
float val; //by convention no Caps for vars...
// a constructor, which get partameters
Database (float v) {
val = v;
}
// a method
void database_setup() {
//whateverq
}
}//end of Database class

First, you should create a new question if you have a second question. Second, you never create the variable pgsql, you just start using it immediately. Move this line:
PostgreSQL pgsql;
to this group of lines:
String user = "user";
String pass = "pass";
String database = "db";
float val;
It's a variable that gets used in that class, so put it in that class. Also, use "float" with a lowercase "f" :)