I want to create better web service that display collection from NotesView with pagination.
And I have found some performance issue of View.getAllEntries from bigger view.
On MongoDB, I can use findAll() with skip() and limit().
How can I do like that on Domino ?
Use the ViewNavigator class. If you are paging through a large view, it is much faster than view.getAllEntries().
You can acquire an instance of ViewNavigator with view.createViewNav() or a similar method. For best performance, call view.setAutoUpdate(false) before you acquire the navigator.
You can find lots more information by searching the web. This article looks like a good place to start.
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.ibm.commons.util.io.json.JsonJavaObject;
import lotus.domino.NotesException;
import lotus.domino.View;
import lotus.domino.ViewColumn;
import lotus.domino.ViewEntryCollection;
import lotus.domino.ViewNavigator;
import lotus.domino.ViewEntry;
private String consultView(View view, int counter,int position) throws Exception{
String strValue = "";
ViewNavigator nav;
int count = 0;
view.setAutoUpdate(false);
nav = view.createViewNav();
nav.setEntryOptions(ViewNavigator.VN_ENTRYOPT_NOCOUNTDATA);
nav.setBufferMaxEntries(400);
int limit = counter;
int skippedEntries = nav.skip(position);
String number = "";
if (skippedEntries == position) {
Map<Integer, String> columnNameMap = new HashMap<Integer, String>();
for (ViewColumn col : (List<ViewColumn>) view.getColumns()) {
if (col.getColumnValuesIndex() < 65535) {
columnNameMap.put(col.getColumnValuesIndex(), col.getItemName());
}
}
List nodeData = new ArrayList();
ViewEntry entry = nav.getCurrent();
while (entry != null && count <= (limit - 1)) {
if (!entry.isCategory()) {
try {
HashMap<String, Object> entryMap = new HashMap<String, Object>();
count++;
List<Object> columnValues = entry.getColumnValues();
entryMap.put("unid", entry.getUniversalID());
entryMap.put("position", entry.getPosition('.'));
entryMap.put("pos", entry.getPosition('.'));
entryMap.put("userpos", count);
for (Integer index : columnNameMap.keySet())
entryMap.put(columnNameMap.get(index).toString(),columnValues.get(index));
nodeData.add(entryMap);
} catch (Exception e) {
e.printStackTrace();
}
}
ViewEntry tmpentry = nav.getNext(entry);
entry.recycle();
entry = tmpentry;
}
JsonJavaObject returnJSON = new JsonJavaObject();
returnJSON.put("errorcode", 0);
returnJSON.put("errormessage", "");
returnJSON.put("total",getViewCount(view));
returnJSON.put("data", nodeData);
strValue = returnJSON.toString();
}
nav.recycle();
view.recycle();
return strValue;
}
private int getViewCount(View view) throws NotesException {
int count = 0;
ViewEntryCollection entryCollection = view.getAllEntries();
count = entryCollection.getCount();
entryCollection.recycle();
return count;
}
}
This below function get all AllEntries from view and the outputs result in JSON object. Please try the following and let me know if it works.
private String consultView(View view, int counter,int position) throws Exception{
String strValue = "";
ViewNavigator nav;
int count = 0;
view.setAutoUpdate(false);
nav = view.createViewNav();
nav.setEntryOptions(ViewNavigator.VN_ENTRYOPT_NOCOUNTDATA);
nav.setBufferMaxEntries(400);
int limit = counter;
int skippedEntries = nav.skip(position);
String number = "";
int inde = 111;
if (skippedEntries == position) {
Map<Integer, String> columnNameMap = new HashMap<Integer, String>();
for (ViewColumn col : (List<ViewColumn>) view.getColumns()) {
if (col.getColumnValuesIndex() < 65535 && Utilisties.containsVar(viewObject.getRetCols(), col.getItemName())) {
columnNameMap.put(col.getColumnValuesIndex(), col.getItemName());
}
}
List nodeData = new ArrayList();
ViewEntry entry = nav.getCurrent();
while (entry != null && count <= (limit - 1)) {
if (!entry.isCategory()) {
try {
HashMap<String, Object> entryMap = new HashMap<String, Object>();
count++;
List<Object> columnValues = entry.getColumnValues();
entryMap.put("unid", entry.getUniversalID());
entryMap.put("position", entry.getPosition('.'));
entryMap.put("pos", entry.getPosition('.'));
entryMap.put("userpos", count);
for (Integer index : columnNameMap.keySet())
entryMap.put(columnNameMap.get(index).toString(),columnValues.get(index));
nodeData.add(entryMap);
} catch (Exception e) {
e.printStackTrace();
}
}
ViewEntry tmpentry = nav.getNext(entry);
entry.recycle();
entry = tmpentry;
}
JsonJavaObject returnJSON = new JsonJavaObject();
returnJSON.put("errorcode", 0);
returnJSON.put("errormessage", "");
if(viewObject.getGetCount())
returnJSON.put("total",getViewCount(view));
returnJSON.put("data", nodeData);
strValue = returnJSON.toString();
}
nav.recycle();
view.recycle();
return strValue;
In my table, I've datas as follow,
Username Age
Anvar 26
Ragul 25
Prabhu 26
Praveen 25
Siva 26
Imran 26
Rajkumar 25
Vinoth 24
Here I want to categorize the username according to their ages and to store it in a string array, currently I've coded as below and it's working fine. But I want simplify it. If anyone have better any idea, please share. Thanks
package test;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
public class Options {
static String URL = "jdbc:derby://localhost:1527/sample;create=true";
static String USER = "admin";
static String PASS = "admin";
public static void main(String[] args) {
// TODO Auto-generated method stub
Connection conn = null;
ResultSet rs=null;
Statement stmt = null;
HashMap<String,Integer> allValue = new HashMap<String,Integer> ();
HashMap<Integer,String> uniqValue = new HashMap<Integer,String> ();
HashMap<Integer,String[]> newMap = new HashMap<Integer,String[]> ();
String name[] =null;
try {
Class.forName("org.apache.derby.jdbc.ClientDriver");
conn = DriverManager.getConnection(URL,USER,PASS);
stmt = conn.createStatement();
rs=stmt.executeQuery("select * from userDetails");
while(rs.next()){
allValue.put(rs.getString(1), rs.getInt(2));
uniqValue.put(rs.getInt(2), rs.getString(1));
}
Iterator uniqEntries = uniqValue.entrySet().iterator();
while (uniqEntries.hasNext()) {
int j=0;
Map.Entry entry = (Map.Entry) uniqEntries.next();
Integer key = (Integer)entry.getKey();
String value = (String) entry.getValue();
Iterator allEntries = allValue.entrySet().iterator();
name = new String[5];
while (allEntries.hasNext()) {
Map.Entry allentry = (Map.Entry) allEntries.next();
String allkey = (String)allentry.getKey();
Integer allvalue = (Integer) allentry.getValue();
if(key == allvalue){
name[j] = allkey;
j++;
}
}
newMap.put(key, name);
}
Iterator newEntries = newMap.entrySet().iterator();
while (newEntries.hasNext()) {
Map.Entry newentry = (Map.Entry) newEntries.next();
Integer newkey = (Integer)newentry.getKey();
String[] newValue = (String[])newentry.getValue();
System.out.println("Age "+newkey);
for(int n=0;n<5;n++){
if(newValue[n] != null){
System.out.println("User "+newValue[n]);
}
}
System.out.println("\n");
}
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Output :
Age 25
User Rajkumar
User Praveen
User Ragul
Age 24
User Vinoth
Age 26
User Anvar
User Imran
User Siva
User Prabhu
One approach is to first, order the results retrieved from the database by age.
rs=stmt.executeQuery("select * from userDetails order by age desc");
Then, have a map, values, with a mapping between the age and the list of users for that age.
Map<Integer,List<String>> values = new HashMap<Integer,List<String>>();
List<String> names = new ArrayList<String>();
int prevAgeGroup = -1;
int currentAgeGroup = 0;
while(rs.hasNext())
{
currentAgeGroup = rs.getInt(2);
if(currentAgeGroup != prevAgeGroup && prevAgeGroup > -1)
{
values.put(prevAgeGroup, names);
names = new ArrayList<String>();
}
names.add("user "+rs.getString(1));
prevAgeGroup = currentAgeGroup;
}
values.put(currentAgeGroup, names);
The above code, iterates each entry from the database and since all the entries would be ordered by age, we can sequentially check if the current age is different from the last encountered age. If it is, create a new list for storing the list of users for the current age.
You can also have a look into MultiHashMap, to achieve this functionality in a simpler way.
I use gml (3.1.1) XSDs in XSD for my application. I want to download all gml XSDs in version 3.1.1 in for example zip file. In other words: base xsd is here and I want to download this XSD with all imports in zip file or something like zip file. Is there any application which supports that?
I've found this downloader but it doesn't works for me (I think that this application is not supporting relative paths in imports which occurs in gml.xsd 3.1.1). Any ideas?
QTAssistant's XSR (I am associated with it) has an easy to use function that allows one to automatically import and refactor XSD content as local files from all sorts of sources. In the process it'll update schema location references, etc.
I've made a simple screen capture of the steps involved in achieving a task like this which should demonstrate its usability.
Based on the solution of mschwehl, I made an improved class to achieve the fetch. It suited well with the question. See https://github.com/mfalaize/schema-fetcher
You can achieve this using SOAP UI.
Follow these steps :
Create a project using the WSDL.
Choose your interface and open in interface viewer.
Navigate to the tab 'WSDL Content'.
Use the last icon under the tab 'WSDL Content' : 'Export the entire WSDL and included/imported files to a local directory'.
select the folder where you want the XSDs to be exported to.
Note: SOAPUI will remove all relative paths and will save all XSDs to the same folder.
I have written a simple java-main that does the job and change to relative url's
package dl;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.Authenticator;
import java.net.PasswordAuthentication;
import java.net.URI;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class SchemaPersister {
private static final String EXPORT_FILESYSTEM_ROOT = "C:/export/xsd";
// some caching of the http-responses
private static Map<String,String> _httpContentCache = new HashMap<String,String>();
public static void main(String[] args) {
try {
new SchemaPersister().doIt();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void doIt() throws Exception {
// // if you need an inouse-Proxy
// final String authUser = "xxxxx";
// final String authPassword = "xxxx"
//
// System.setProperty("http.proxyHost", "xxxxx");
// System.setProperty("http.proxyPort", "xxxx");
// System.setProperty("http.proxyUser", authUser);
// System.setProperty("http.proxyPassword", authPassword);
//
// Authenticator.setDefault(
// new Authenticator() {
// public PasswordAuthentication getPasswordAuthentication() {
// return new PasswordAuthentication(authUser, authPassword.toCharArray());
// }
// }
// );
//
Set <SchemaElement> allElements = new HashSet<SchemaElement>() ;
// URL url = new URL("file:/C:/xauslaender-nachrichten-administration.xsd");
URL url = new URL("http://www.osci.de/xauslaender141/xauslaender-nachrichten-bamf-abh.xsd");
allElements.add ( new SchemaElement(url));
for (SchemaElement e: allElements) {
System.out.println("processing " + e);
e.doAll();
}
System.out.println("done!");
}
class SchemaElement {
private URL _url;
private String _content;
public List <SchemaElement> _imports ;
public List <SchemaElement> _includes ;
public SchemaElement(URL url) {
this._url = url;
}
public void checkIncludesAndImportsRecursive() throws Exception {
InputStream in = new ByteArrayInputStream(downloadContent() .getBytes("UTF-8"));
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(in);
List<Node> includeNodeList = null;
List<Node> importNodeList = null;
includeNodeList = getXpathAttribute(doc,"/*[local-name()='schema']/*[local-name()='include']");
_includes = new ArrayList <SchemaElement> ();
for ( Node element: includeNodeList) {
Node sl = element.getAttributes().getNamedItem("schemaLocation");
if (sl == null) {
System.out.println(_url + " defines one import but no schemaLocation");
continue;
}
String asStringAttribute = sl.getNodeValue();
URL url = buildUrl(asStringAttribute,_url);
SchemaElement tmp = new SchemaElement(url);
tmp.setSchemaLocation(asStringAttribute);
tmp.checkIncludesAndImportsRecursive();
_includes.add(tmp);
}
importNodeList = getXpathAttribute(doc,"/*[local-name()='schema']/*[local-name()='import']");
_imports = new ArrayList <SchemaElement> ();
for ( Node element: importNodeList) {
Node sl = element.getAttributes().getNamedItem("schemaLocation");
if (sl == null) {
System.out.println(_url + " defines one import but no schemaLocation");
continue;
}
String asStringAttribute = sl.getNodeValue();
URL url = buildUrl(asStringAttribute,_url);
SchemaElement tmp = new SchemaElement(url);
tmp.setSchemaLocation(asStringAttribute);
tmp.checkIncludesAndImportsRecursive();
_imports.add(tmp);
}
in.close();
}
private String schemaLocation;
private void setSchemaLocation(String schemaLocation) {
this.schemaLocation = schemaLocation;
}
// http://stackoverflow.com/questions/10159186/how-to-get-parent-url-in-java
private URL buildUrl(String asStringAttribute, URL parent) throws Exception {
if (asStringAttribute.startsWith("http")) {
return new URL(asStringAttribute);
}
if (asStringAttribute.startsWith("file")) {
return new URL(asStringAttribute);
}
// relative URL
URI parentUri = parent.toURI().getPath().endsWith("/") ? parent.toURI().resolve("..") : parent.toURI().resolve(".");
return new URL(parentUri.toURL().toString() + asStringAttribute );
}
public void doAll() throws Exception {
System.out.println("READ ELEMENTS");
checkIncludesAndImportsRecursive();
System.out.println("PRINTING DEPENDENCYS");
printRecursive(0);
System.out.println("GENERATE OUTPUT");
patchAndPersistRecursive(0);
}
public void patchAndPersistRecursive(int level) throws Exception {
File f = new File(EXPORT_FILESYSTEM_ROOT + File.separator + this.getXDSName() );
System.out.println("FILENAME: " + f.getAbsolutePath());
if (_imports.size() > 0) {
for (int i = 0; i < level; i++) {
System.out.print(" ");
}
System.out.println("IMPORTS");
for (SchemaElement kid : _imports) {
kid.patchAndPersistRecursive(level+1);
}
}
if (_includes.size() > 0) {
for (int i = 0; i < level; i++) {
System.out.print(" ");
}
System.out.println("INCLUDES");
for (SchemaElement kid : _includes) {
kid.patchAndPersistRecursive(level+1);
}
}
String contentTemp = downloadContent();
for (SchemaElement i : _imports ) {
if (i.isHTTP()) {
contentTemp = contentTemp.replace(
"<xs:import schemaLocation=\"" + i.getSchemaLocation() ,
"<xs:import schemaLocation=\"" + i.getXDSName() );
}
}
for (SchemaElement i : _includes ) {
if (i.isHTTP()) {
contentTemp = contentTemp.replace(
"<xs:include schemaLocation=\"" + i.getSchemaLocation(),
"<xs:include schemaLocation=\"" + i.getXDSName() );
}
}
FileOutputStream fos = new FileOutputStream(f);
fos.write(contentTemp.getBytes("UTF-8"));
fos.close();
System.out.println("File written: " + f.getAbsolutePath() );
}
public void printRecursive(int level) {
for (int i = 0; i < level; i++) {
System.out.print(" ");
}
System.out.println(_url.toString());
if (this._imports.size() > 0) {
for (int i = 0; i < level; i++) {
System.out.print(" ");
}
System.out.println("IMPORTS");
for (SchemaElement kid : this._imports) {
kid.printRecursive(level+1);
}
}
if (this._includes.size() > 0) {
for (int i = 0; i < level; i++) {
System.out.print(" ");
}
System.out.println("INCLUDES");
for (SchemaElement kid : this._includes) {
kid.printRecursive(level+1);
}
}
}
String getSchemaLocation() {
return schemaLocation;
}
/**
* removes html:// and replaces / with _
* #return
*/
private String getXDSName() {
String tmp = schemaLocation;
// Root on local File-System -- just grap the last part of it
if (tmp == null) {
tmp = _url.toString().replaceFirst(".*/([^/?]+).*", "$1");
}
if ( isHTTP() ) {
tmp = tmp.replace("http://", "");
tmp = tmp.replace("/", "_");
} else {
tmp = tmp.replace("/", "_");
tmp = tmp.replace("\\", "_");
}
return tmp;
}
private boolean isHTTP() {
return _url.getProtocol().startsWith("http");
}
private String downloadContent() throws Exception {
if (_content == null) {
System.out.println("reading content from " + _url.toString());
if (_httpContentCache.containsKey(_url.toString())) {
this._content = _httpContentCache.get(_url.toString());
System.out.println("Cache hit! " + _url.toString());
} else {
System.out.println("Download " + _url.toString());
Scanner scan = new Scanner(_url.openStream(), "UTF-8");
if (isHTTP()) {
this._content = scan.useDelimiter("\\A").next();
} else {
this._content = scan.useDelimiter("\\Z").next();
}
scan.close();
if (this._content != null) {
_httpContentCache.put(_url.toString(), this._content);
}
}
}
if (_content == null) {
throw new NullPointerException("Content of " + _url.toString() + "is null ");
}
return _content;
}
private List<Node> getXpathAttribute(Document doc, String path) throws Exception {
List <Node> returnList = new ArrayList <Node> ();
XPathFactory xPathfactory = XPathFactory.newInstance();
XPath xpath = xPathfactory.newXPath();
{
XPathExpression expr = xpath.compile(path);
NodeList nodeList = (NodeList) expr.evaluate(doc, XPathConstants.NODESET );
for (int i = 0 ; i < nodeList.getLength(); i++) {
Node n = nodeList.item(i);
returnList.add(n);
}
}
return returnList;
}
#Override
public String toString() {
if (_url != null) {
return _url.toString();
}
return super.toString();
}
}
}
I created a python tool to recursively download XSDs with relative paths in import tags (eg: <import schemaLocation="../../../../abc)
https://github.com/n-a-t-e/xsd_download
After downloading the schema you can use xmllint to validate an XML document
I am using org.apache.xmlbeans.impl.tool.SchemaResourceManager from the xmlbeans project. This class is quick and easy to use.
for example:
SchemaResourceManager manager = new SchemaResourceManager(new File(dir));
manager.process(schemaUris, emptyArray(), false, true, true);
manager.writeCache();
This class has a main method that documents the different options available.
I'm new to J2ME and I'm taking a class where we use it. I created a simple travel reservation MIDlet using choice groups text fields etc. I then added a Record Store to capture this information. I now have a user login that only requires a user name, but i don't know how to verify that the user name is in the Record Store, so instead I accept any one as long as the Textfield for the user name is not empty. My first question is how would I verify that the user exist, I already can create an account. The second question is how can I search a record store not by id but say using a string within a certain range for each row of the Record store.
Here is my code so far:
$import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.util.Date;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;
import javax.microedition.rms.*;
/**
* #author XayBlu
*/
public class tripMe extends MIDlet implements CommandListener {
Form startForm, airForm, trainForm, cruiseForm, autoForm, Ext, Pass,home,login, create;
Command Exit, Trip, Cinfo, AutC,AiC,CrC, info,Tme,trainC, logC,signC, createC, prev, newTrip, Home;
ChoiceGroup trans,hCAP, passCNT,airT,airC,AuC,AuT,CrL,CcabT,Tseat,TOP;
Display Xdisplay;
TextField Eneed, uName, uName2;
Alert Final, FinalT, Sucess, nope;
DateField dDate, rDate;
Date d,r;
Image [] image;
String details =" ",tt="", Trav, Rdate, Ddate, extraA, Pcount,specialA, TT,AIR2, AIR,AUTO,AUTO2,CRUISE,CRUISE2,TRAIN,TRAIN2, USERS="USERS";
String op[] = {"Air","Auto","Cruise","Train"}; //Array Items for Choice Groups
String ep[] = {"Wheel Chair","Baby Seat","Extended Seatbelt","Extra Pillows","Oxygen Tank","GPS"};
String count[] = {"1","2","3","4","5","6","7","8"};
String AL []= {"American Airlines","Delta","US Airways","South West Airlines","United Airlines"};
String Rental [] = {"Alamo","Avis","Budget","Enteprise","Dollar","Hertz"};
String CL [] = {"Carnival","Norwegian","Royal Caribbean","Celebrity X","MSC"};
String CT [] = {"Compact","Standard","Full","SUV","Luxury","Sports"};
String Cabin [] = {"Suite","Ocean Balcony","Standard","Economy"};
String tCAB[] = {"Standard Seat","Sleeper Cart"};
String Toptions[] ={"Extra Luggage room","Salad Buffet","Wifi Access","Extra Blanket"};
RecordStore usr,itt;
RecordEnumeration recEnum = null;
RecordFilter filter = null;
int Umax=5;
int tran1 =6;
String last;
Byte [] data = new Byte[Umax];
/* NEW COMMANDS FOR FLEXIBLE USER INPUT TO RECORD STORES */
public void writeRecord(String str){ // User to insert user input to record stores
byte[] rec = str.getBytes();
try{
usr.addRecord(rec, 0, rec.length);
}catch (Exception e){}
}
public void writeInfo(String str){ // User to insert user input to record stores
byte[] rec = str.getBytes();
try{
usr.addRecord(rec, tran1, rec.length);
}catch (Exception e){}
}
public void updateRecord(String str){
try{
usr.setRecord(1, str.getBytes(), 0, str.length());
}catch (Exception e){}
}
public void deleteRecord(){
try{
usr.deleteRecord(1);
}catch (Exception e){}
}
public void closeRecord(){
try{
usr.closeRecordStore();
}catch (Exception e){}
}
public void deleteRecStore(){
if (RecordStore.listRecordStores() != null){
try{
RecordStore.deleteRecordStore(USERS);
}catch (Exception e){}
}
}
public void openRecStore()
{
try
{
// The second parameter indicates that the record store
// should be created if it does not exist
usr = RecordStore.openRecordStore(USERS, true );
}
catch (Exception e)
{
System.out.print("Could not open record store");
}
}
public void readRecords()
{
try
{
// Intentionally make this too small to test code below
byte[] recData = new byte[5];
int len;
for (int i = 1; i <= usr.getNumRecords(); i++)
{
if (usr.getRecordSize(i) > recData.length)
recData = new byte[usr.getRecordSize(i)];
len = usr.getRecord(i, recData, 0);
home.append(new String(recData,0,len));
// System.out.println("Record #" + i + ": " + new String(recData, 0, len));
// System.out.println("------------------------------");
}
}
catch (Exception e)
{
nope = new Alert("Sorry no match!",null,null,AlertType.INFO);
nope.setTimeout(Alert.FOREVER); //Append string for FinalT Alert
Xdisplay.setCurrent(nope, login);
}
}
}
class Filter implements RecordFilter {
private String search = null;
private ByteArrayInputStream inputstream = null;
private DataInputStream datainputstream = null;
public Filter(String search) {
this.search = search.toLowerCase();
}
public void filterClose() {
try {
if (inputstream != null) {
inputstream.close();
}
if (datainputstream != null) {
datainputstream.close();
}
} catch (Exception error) {
}
}
}
public tripMe (){
try{ //Initializing individual images for Choice Group Icons
Image car = Image.createImage("/car2.png");
Image plane = Image.createImage("/plane2.png");
Image train = Image.createImage("/train2.png");
Image cruise = Image.createImage("/cruise2.png");
image = new Image[] {plane,car,cruise,train}; //Initializing Image array for ChoiceGroup
}
catch (java.io.IOException err) {System.out.print("Could not load pics"); } //Throws exception if pic cannot be found
startForm = new Form("Get Away Today"); //Initialization of forms
Pass = new Form ("Passenger Information");
airForm = new Form("Low Prices!");
autoForm = new Form("Find the best car for you");
Ext = new Form("Itinerary Details");
Ext.setTicker(new Ticker("Enjoy Your Vacation"));
cruiseForm = new Form("Sail Away Today");
trainForm = new Form("Chuuu- Chuuu");
login = new Form("Sign up Today");
home = new Form("Welcome Back");
create = new Form("Create an account");
trans = new ChoiceGroup("Select travel type",ChoiceGroup.EXCLUSIVE,op,image); //Transport tation choice group initialized with corresponding string and image array
Exit = new Command("Exit", Command.EXIT,1);//Adding necessary commands
Trip = new Command("Go", Command.SCREEN,2);//Adding go command which allows you to select travel type
signC = new Command("Sign up",Command.SCREEN,2);
logC = new Command("Log in",Command.SCREEN,2);
createC = new Command("OK",Command.SCREEN,2);
prev = new Command("History",Command.SCREEN,2);
newTrip = new Command("Reservations",Command.SCREEN,2);
Home = new Command("Log out",Command.SCREEN,1);
hCAP = new ChoiceGroup("Extra Assistance", ChoiceGroup.MULTIPLE,ep,null);//Passenger Info items
passCNT = new ChoiceGroup("Number of Passengers:",ChoiceGroup.POPUP,count,null);
rDate = new DateField("Return Date",DateField.DATE_TIME);//Could not get the DateField to return string date value
dDate = new DateField("Departure Date",DateField.DATE_TIME);
Eneed = new TextField("Special Needs","",50,TextField.ANY);
uName = new TextField("User Name","",5,TextField.ANY);
uName2 = new TextField("User Name","",5,TextField.ANY);
info = new Command("Next",Command.SCREEN,2);
AiC = new Command("Complete",Command.SCREEN,2);//Air travel option items
airT = new ChoiceGroup("Choose Airline", ChoiceGroup.POPUP,AL,null);//Airline selection
airC = new ChoiceGroup("Select Class",ChoiceGroup.EXCLUSIVE);//Economy or first cass?
airC.append("First Class", null);//Adding elements to Choice Group
airC.append("Economy", null);
AuC = new ChoiceGroup("Choose rental company", ChoiceGroup.POPUP,Rental,null);//Auto travel option items
AuT = new ChoiceGroup("Select Vehicle Type", ChoiceGroup.EXCLUSIVE, CT,null);//Choicegroup for Vehicle type
AutC = new Command("Drive away", Command.SCREEN,2);//Adding drive away command to form
CrL = new ChoiceGroup("Select Cruise Line Comp.", ChoiceGroup.POPUP,CL,null);//Cruise option Items, Cruise line choicegroup
CcabT = new ChoiceGroup("Select Cabin Type", ChoiceGroup.EXCLUSIVE,Cabin,null);//Cabin type choice group
CrC = new Command("Cruise", Command.SCREEN,2);//Cruise form command being added
trainC = new Command("Track!", Command.SCREEN,2);//Train option items, Train form command
Tseat = new ChoiceGroup("Seat Type", ChoiceGroup.EXCLUSIVE,tCAB,null);//Choicegroup for train seat type
TOP = new ChoiceGroup("Extra Options", ChoiceGroup.POPUP,Toptions,null);//Train extra options choice group
/* Appending Items to necessary Forms*/
create.append(uName2);
create.addCommand(createC);
create.setCommandListener(this);
home.addCommand(prev);
home.addCommand(newTrip);
home.setCommandListener(this);
login.append(uName);
login.addCommand(logC);
login.addCommand(signC);
login.setCommandListener(this);
startForm.append(trans);
startForm.addCommand(Exit);
startForm.addCommand(Trip);
startForm.setCommandListener(this);
Pass.append(dDate);
Pass.append(rDate);
Pass.append(hCAP);
Pass.append(passCNT);
Pass.append(Eneed);
Pass.addCommand(info);
Pass.setCommandListener(this);
airForm.append(airT);
airForm.append(airC);
airForm.addCommand(AiC);
airForm.setCommandListener(this);
autoForm.addCommand(AutC);
autoForm.append(AuC);
autoForm.append(AuT);
autoForm.setCommandListener(this);
cruiseForm.addCommand(CrC);
cruiseForm.append(CrL);
cruiseForm.append(CcabT);
cruiseForm.setCommandListener(this);
trainForm.addCommand(trainC);
trainForm.append(Tseat);
trainForm.append(TOP);
trainForm.setCommandListener(this);
Ext.addCommand(Exit);
Ext.addCommand(Home);
Ext.setCommandListener(this);
}
public void startApp() {
Xdisplay= Display.getDisplay(this);
Xdisplay.setCurrent(login);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
notifyDestroyed();
}
public void commandAction(Command c, Displayable displayable){
try {
usr = RecordStore.openRecordStore(USERS, false);
} catch (Exception e) {
Sucess = new Alert("Error","Could not open Record Strore",null,AlertType.INFO);
Sucess.setTimeout(Alert.FOREVER); //Append string for FinalT Alert
Xdisplay.setCurrent(Sucess, login);
}
if(c==signC)
{
Xdisplay.setCurrent(create);
}
else if(c == newTrip)
{
Xdisplay.setCurrent(startForm);
}
else if(c == prev)
{
try {
String record = "";
for (int i = 1; i < usr.getNextRecordID(); i++) {
record = new String(usr.getRecord(i));
}
home.append(record);
} catch (Exception e) {
home.append("Could not retrieve data");
try {
usr.closeRecordStore();
RecordStore.deleteRecordStore(USERS);
} catch (Exception x) {
}
}
try {
usr.closeRecordStore();
} catch (Exception e) {
}
}
else if(c==createC)
{
try {
usr = RecordStore.openRecordStore(USERS, true);
} catch (RecordStoreException ex) {
ex.printStackTrace();
}
if(!"".equals(uName2.getString()))
{
writeRecord(uName2.getString());
}
Sucess = new Alert("Welcome to the mile high club","Hello:"+uName2.getString(),null,AlertType.INFO);
Sucess.setTimeout(Alert.FOREVER); //Append string for FinalT Alert
Xdisplay.setCurrent(Sucess, login);
}
else if (c == logC)
{
if(!"".equals(uName.getString()))
{
String name = uName.getString();
byte[] data = name.getBytes();
Xdisplay.setCurrent(home);
}
else
{
Sucess = new Alert("Please enter user name!","Invalid user name",null,AlertType.INFO);
Sucess.setTimeout(Alert.FOREVER); //Append string for FinalT Alert
Xdisplay.setCurrent(Sucess, login);
}
}
else if(c==Trip)
{
tt +="Travel Mode: "+ trans.getString(trans.getSelectedIndex())+"\n";
if(trans.isSelected(0))
{
TT="A"; //Sets the type of travel based on choicegroup user selection
Xdisplay.setCurrent(Pass);
}
else if(trans.isSelected(1))
{
TT="B";
Xdisplay.setCurrent(Pass);
}
else if(trans.isSelected(2))
{
TT="C";
Xdisplay.setCurrent(Pass);
}
else if(trans.isSelected(3))
{
TT="D";
Xdisplay.setCurrent(Pass);
}
}
else if (c == info)
{
for(int i = 0; i < hCAP.size(); i++) //Checks to see what items are selected in a ChoiceGrou
{
if(hCAP.isSelected(i))
{
details += hCAP.getString(i)+","; //If item is selected then it is appended to the string details
}
}
Rdate = rDate.getDate().toString();
Ddate = dDate.getDate().toString();
tt+= "Departure Date: "+ Ddate.substring(0, 10)+"\n";
tt+= "Return Date: "+ Rdate.substring(0, 10)+"\n";
Pcount = passCNT.getString(passCNT.getSelectedIndex()); //Gets passenger count from choicegroup of integers
specialA = Eneed.getString();
Final = new Alert("Your travel details: \n","Requested Devices:"+details+"\nPassenger Count: "+Pcount+
"\nSpecific Request: "+specialA,null,AlertType.INFO); //Appends string for alert
Final.setTimeout(Alert.FOREVER);
if("A".equals(TT)){ //Directs user to form based on travel type choice
Xdisplay.setCurrent(Final,airForm);
}
else if("B".equals(TT)){//Directs user to form based on travel type choice
Xdisplay.setCurrent(Final, autoForm);
}
else if ("C".equals(TT)){//Directs user to form based on travel type choice
Xdisplay.setCurrent(Final, cruiseForm);
}
else if ("D".equals(TT)){//Directs user to form based on travel type choice
Xdisplay.setCurrent(Final, trainForm);
}
}
else if(c==AiC)
{
AIR = airT.getString(airT.getSelectedIndex());//Retrieves selected item from choicegroup
tt+="Company: "+AIR+"\n";
AIR2 = airC.getString(airC.getSelectedIndex());//Retrieves selected item from choicegroup
FinalT = new Alert("Flight Details: \n","Airline Company:"+AIR+"\nSeat Class: "+AIR2,null,AlertType.INFO);
FinalT.setTimeout(Alert.FOREVER); //Append string for FinalT Alert
Trav ="Customer Details \nRequested Devices:\n"+details+"\n# of Passengers:\n "+Pcount+"\nSpecific customer request:\n "+specialA+
"\nDeparture Date: "+Ddate+"\nReturn Date: "+Rdate;
Ext.append(Trav);
extraA ="Carrier Details\n"+"Airline Carrier: "+AIR+"\nSeat Type: "+AIR2; //Append string for final display of info to user
Ext.append(extraA);
try {
usr = RecordStore.openRecordStore(USERS, true);
} catch (RecordStoreException ex) {
}
writeRecord("\n"+tt);
Xdisplay.setCurrent(FinalT,Ext);
}
else if (c == AutC)
{
AUTO = AuC.getString(AuC.getSelectedIndex());//Retrieves selected item from choicegroup
tt += "Company: "+AUTO+"\n";
AUTO2 = AuT.getString(AuT.getSelectedIndex());//Retrieves selected item from choicegroup
FinalT = new Alert("Auto Details: \n","Car Rental Company:"+AUTO+"\nVehicle Class: "+AUTO2,null,AlertType.INFO);
FinalT.setTimeout(Alert.FOREVER);
Trav ="Customer Details \nRequested Devices:\n"+details+"\n# of Passengers:\n "+Pcount+"\nSpecific customer request:\n "+specialA+
"\nDeparture Date: "+Ddate+"\nReturn Date: "+Rdate;
Ext.append(Trav);
extraA ="Carrier Details\n"+"Rental Company: "+AUTO+"\nVehicle Class: "+AUTO2; //Append string for final display of info to user
Ext.append(extraA);
try {
usr = RecordStore.openRecordStore(USERS, true);
} catch (RecordStoreException ex) {
}
writeRecord("\n"+tt);
Xdisplay.setCurrent(FinalT, Ext);
}
else if (c == CrC)
{
CRUISE = CrL.getString(CrL.getSelectedIndex());
tt += "Company: "+CRUISE+"\n";
CRUISE2 = CcabT.getString(CcabT.getSelectedIndex());
FinalT = new Alert("Cruise Details: \n","Cruise Line Company:"+CRUISE+"\nCabin Type:"+CRUISE2,null,AlertType.INFO);
FinalT.setTimeout(Alert.FOREVER);
Trav ="Customer Details \nRequested Devices:\n"+details+"\n# of Passengers:\n "+Pcount+"\nSpecific customer request:\n "+specialA+
"\nDeparture Date: "+Ddate+"\nReturn Date: "+Rdate;
Ext.append(Trav);
extraA ="Carrier Details\n"+"Cruise Line Company: "+CRUISE+"\nCabin Type: "+CRUISE2; //Append string for final display of info to user
Ext.append(extraA);
try {
usr = RecordStore.openRecordStore(USERS, true);
} catch (RecordStoreException ex) {
}
writeRecord("\n"+tt);
Xdisplay.setCurrent(FinalT, Ext);
}
else if (c == trainC)
{
TRAIN = Tseat.getString(Tseat.getSelectedIndex());
TRAIN2 = TOP.getString(TOP.getSelectedIndex());
FinalT = new Alert("Train Details: \n","Train Seat Type:"+TRAIN+"\nExtra Amenities:"+TRAIN2,null,AlertType.INFO);
FinalT.setTimeout(Alert.FOREVER);
Trav ="Customer Details \nRequested Devices:\n"+details+"\n# of Passengers:\n "+Pcount+"\nSpecific customer request:\n "+specialA+
"\nDeparture Date: "+Ddate+"\nReturn Date: "+Rdate;
Ext.append(Trav);
extraA ="Carrier Details\n"+"Train Seat Type: "+TRAIN+"\nExtra Amenities: "+TRAIN2; //Append string for final display of info to user
Ext.append(extraA);
try {
usr = RecordStore.openRecordStore(USERS, true);
} catch (RecordStoreException ex) {
}
writeRecord("\n"+tt);
Xdisplay.setCurrent(FinalT, Ext);
}
else if(c == Home)
{
home.deleteAll();
Xdisplay.setCurrent(login);
}
else if(c==Exit)
{
destroyApp(false);
notifyDestroyed();
}
}
}
I am trying to implement simple paging on my sharepoint webpart. I have a single news articles list which has some simple columns. I want to be able to have then five on a page and with some numerical paging at the bottom. I have gone through the net trying to understand splistitemcollectionposition but with no luck. If anyone can help please can you give me a simple code example or some guidanc
Many thanks
Chris
I would suggest using SPDataSource and a SPGridView, together they will implement paging and many other cool features with minimal or no code.
Use this a a guide for some of the classes/methods/properties you might need to use to get paging to work. Be aware that this code does not compile, i have just pulled together various code snippets that i have in my own list results framework, which includes paging, sorting, grouping and caching. It should be enough to get you started though.
public class PagedListResults : System.Web.UI.WebControls.WebParts.WebPart {
protected SPPagedGridView oGrid;
protected override void CreateChildControls() {
this.oGrid = new SPPagedGridView();
oGrid.AllowPaging = true;
oGrid.PageIndexChanging += new GridViewPageEventHandler(oGrid_PageIndexChanging);
oGrid.PagerTemplate = null; // Must be called after Controls.Add(oGrid)
oGrid.PagerSettings.Mode = PagerButtons.NumericFirstLast;
oGrid.PagerSettings.PageButtonCount = 3;
oGrid.PagerSettings.Position = PagerPosition.TopAndBottom;
base.CreateChildControls();
}
public override void DataBind() {
base.DataBind();
SPQuery q = new SPQuery();
q.RowLimit = (uint)info.PageSize;
if (!string.IsNullOrEmpty(info.PagingInfoData)) {
SPListItemCollectionPosition pos = new SPListItemCollectionPosition(info.PagingInfoData);
q.ListItemCollectionPosition = pos;
} else {
//1st page, dont need a position, and using a position breaks things
}
q.Query = info.Caml;
SPListItemCollection items = SPContext.Current.List.GetItems(q);
FilterInfo info = null;
string tmp = "<View></View>";
tmp = tmp.Replace("<View><Query>", string.Empty);
tmp = tmp.Replace("</Query></View>", string.Empty);
info.Caml = tmp;
info.PagingInfoData = string.Empty;
info.CurrentPage = oGrid.CurrentPageIndex;
info.PageSize = oGrid.PageSize;
if (oGrid.PageIndex == 0 || oGrid.CurrentPageIndex == 0) {
//do nothing
} else {
StringBuilder value = new StringBuilder();
value.Append("Paged=TRUE");
value.AppendFormat("&p_ID={0}", ViewState[KEY_PagingPrefix + "ID:" + oGrid.PageIndex]);
info.PagingInfoData = value.ToString();
}
int pagecount = (int)Math.Ceiling(items.Count / (double)oGrid.PageSize);
for (int i = 1; i < pagecount; i++) { //not always ascending index numbers
ResultItem item = items[(i * oGrid.PageSize) - 1];
ViewState[KEY_PagingPrefix + "ID:" + i] = item.ID;
}
oGrid.VirtualCount = items.Count;
DateTime time3 = DateTime.Now;
DataTable table = new DataTable("Data");
DataBindListData(table, items);
this.oGrid.DataSource = table;
this.oGrid.DataBind();
this.oGrid.PageIndex = oGrid.CurrentPageIndex; //need to reset this after DataBind
}
void oGrid_PageIndexChanging(object sender, GridViewPageEventArgs e) {
oGrid.PageIndex = e.NewPageIndex;
oGrid.CurrentPageIndex = oGrid.PageIndex;
}
}
public class FilterInfo {
public string Caml;
public string PagingInfoData;
public int CurrentPage;
public int PageSize;
}
public class SPPagedGridView : SPGridView {
protected override void InitializePager(GridViewRow row, int columnSpan, PagedDataSource pagedDataSource) {
pagedDataSource.AllowCustomPaging = true;
pagedDataSource.VirtualCount = virtualcount;
pagedDataSource.CurrentPageIndex = currentpageindex;
base.InitializePager(row, columnSpan, pagedDataSource);
}
private int virtualcount = 0;
public int VirtualCount {
get { return virtualcount; }
set { virtualcount = value; }
}
private int currentpageindex = 0;
public int CurrentPageIndex {
get { return currentpageindex; }
set { currentpageindex = value; }
}
}
check out my post on how to page using SPListItemCollectionPosition, I did a component to page over lists, maybe it can help -> http://hveiras.wordpress.com/2011/11/07/listpagert-using-splistitemcollectionposition/