But how do you get the name or type of a column ??
So far this is what i got, trying to implement your idea :
private class SortDecorator implements ColumnSortEvent.Handler {
private ColumnSortEvent.Handler innerHandler;
TextColumn<DemandeBean> autoriteColumn;
//public SortDecorator(ColumnSortEvent.Handler innerHandler,
public SortDecorator( com.google.gwt.user.cellview.client.ColumnSortEvent.Handler handler,
TextColumn<DemandeBean> colonnetriee
) {
this.autoriteColumn = colonnetriee;
this.innerHandler = handler;
GWT.log("entrée dans SortDecorator");
}
//@Override
public void onColumnSort(ColumnSortEvent event) {
GWT.log("entrée dans SortDecorator.onColumnSort");
GWT.log("entrée dans SortDecorator.onColumnSort 2");
innerHandler.onColumnSort(event);
//tableHeader.redrawHeaders();
GWT.log("entrée dans SortDecorator.onColumnSort 3");
if (event.getColumn().equals("autoriteColumn")) {
GWT.log("entrée dans SortDecorator.onColumnSort 4");
List<DemandeBean> newData = new ArrayList(demandeTable.getVisibleItems());
if (event.isSortAscending()) {
GWT.log("Ordre ascendant");
Collections.sort(newData, new Comparator<DemandeBean>() {
public int compare(DemandeBean o1, DemandeBean o2) {
if (o1 == o2) {
return 0;
}
if (o1 != null) {
return (o2 != null) ? o1.getAutorite().compareTo(o2.getAutorite()) : 1;
}
return -1;
}
}
);
} else {
GWT.log("Ordre descendant");
Collections.sort(newData, new Comparator<DemandeBean>() {
public int compare(DemandeBean o1, DemandeBean o2) {
if (o1 == o2) {
return 0;
}
if (o1 != null) {
return (o2 != null) ? o2.getAutorite().compareTo(o1.getAutorite()) : 1;
}
return -1;
}
}
);
}
Range range = demandeTable.getVisibleRange();
int start = range.getStart();
demandeTable.setRowData(start, newData);
}
// else if (event.getColumn().equals(column2)) {
// }
}
The call is the following :
demandeTable.addColumnSortHandler(new SortDecorator(new ColumnSortEvent.Handler(), autoriteColumn) );
the call is incorrect since i get the following error message :
Cannot instantiate the type ColumnSortEvent.Handler
Can you give me a more detailed explanation or a basic sample ?
Thanks
On Mon, Apr 25, 2011 at 3:40 PM, SVR <svrnyc@gmail.com> wrote:
I didnt go through your code :-), but you can create a new class that implements
ColumnSortEvent.Handler and add it using addColumnSortHandler().
You can pass the columns to the class constructor and onColumnSort
you can check the column being sorted like so:
if (event.getColumn().equals(column1)) {
}
else if (event.getColumn().equals(column2)) {
}
and so on.
Hope this helps.On Fri, Apr 22, 2011 at 1:36 PM, Celinio <cel975@gmail.com> wrote:
--Hi,
I am using GWT 2.2 and the new CellTable sorting features, as described here :
http://code.google.com/intl/fr-FR/webtoolkit/doc/latest/DevGuideUiCellTable.html
There is a strange error (Umbrella exception, nothing else) when I use the columnSortHandler.setComparator(...) method.
I commented it out.
If i use the addColumnSortHandler(new ColumnSortEvent.Handler() { ...} method, it works.
However on one column only. I want to be able to sort the table, on whichever column i click on.
So i'm stuck :
either i figure out what's wrong with the setComparator(..) method
or i use the addColumnSortHandler(...) and in that case i need to figure out how to retrieve the name of the column
that is currently sorted.
Does anyone know what could be wrong ?
Thanks
Here is the code :
package com.francetelecom.voltage.gestion.presentation.client.mvp.view.impl;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import com.ft.v.g.presentation.client.GwtApplication;
import com.ft.v.g.presentation.client.mvp.presenter.ListPresenter;
import com.ft.v.g.presentation.client.mvp.view.ListView;
import com.ft.v.g.presentation.client.ui.RecherchePanel;
import com.ft.v.g.presentation.client.ui.SimpleHasFeedback;
import com.ft.v.model.DemandeBean;
import com.google.gwt.cell.client.ClickableTextCell;
import com.google.gwt.cell.client.FieldUpdater;
import com.google.gwt.core.client.GWT;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.text.shared.AbstractSafeHtmlRenderer;
import com.google.gwt.text.shared.SafeHtmlRenderer;
import com.google.gwt.user.cellview.client.CellTable;
import com.google.gwt.user.cellview.client.Column;
import com.google.gwt.user.cellview.client.ColumnSortEvent;
import com.google.gwt.user.cellview.client.SimplePager;
import com.google.gwt.user.cellview.client.TextColumn;
import com.google.gwt.user.cellview.client.ColumnSortEvent.ListHandler;
import com.google.gwt.user.cellview.client.SimplePager.TextLocation;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.view.client.Range;
import com.google.gwt.view.client.RangeChangeEvent;
import com.google.gwt.view.client.RangeChangeEvent.Handler;
public class DemandesListViewImpl extends Composite implements
ListView<DemandeBean> {
private RecherchePanel rp = new RecherchePanel();
private final CellTable<DemandeBean> demandeTable;
private final SimplePager pager;
private final static int PAGE_SIZE = 7;
private List<DemandeBean> demandes;
private SimpleHasFeedback feedback;
private ListPresenter<DemandeBean> presenter;
public DemandesListViewImpl() {
feedback = new SimpleHasFeedback();
// Create a CellTable.
demandeTable = new CellTable<DemandeBean>();
demandeTable.getElement().setId("marketlist");
demandeTable.setPageSize(PAGE_SIZE);
demandeTable.setRowCount(0, true);
demandeTable.addRangeChangeHandler(new Handler() {
public void onRangeChange(RangeChangeEvent event) {
Range range = demandeTable.getVisibleRange();
int start = range.getStart();
int length = range.getLength();
List<DemandeBean> toSet = new ArrayList<DemandeBean>(length);
for (int i = start; i < start + length && i < demandes.size(); i++)
toSet.add(demandes.get(i));
demandeTable.setRowData(start, toSet);
}
});
// Create a Pager to control the table.
SimplePager.Resources pagerResources = GWT
.create(SimplePager.Resources.class);
pager = new SimplePager(TextLocation.CENTER, pagerResources, false, 0,
true);
pager.setDisplay(demandeTable);
// Create id column.
TextColumn<DemandeBean> idColumn = new TextColumn<DemandeBean>() {
@Override
public String getValue(DemandeBean demande) {
//return demande.getId().toString();
return String.valueOf(demande.getIdDemande());
}
};
// renderer for nameColumn
SafeHtmlRenderer<String> nameColumnRenderer = new AbstractSafeHtmlRenderer<String>() {
public SafeHtml render(String object) {
SafeHtmlBuilder builder = new SafeHtmlBuilder();
builder.appendHtmlConstant("<a>");
builder.appendEscaped(object);
builder.appendHtmlConstant("</a>");
return builder.toSafeHtml();
}
};
// Create id column.
TextColumn<DemandeBean> etatColumn = new TextColumn<DemandeBean>() {
@Override
public String getValue(DemandeBean demande) {
return demande.getEtatDemande().getNomCourt().toString();
}
};
// Date réception
Column<DemandeBean, String> dateReceptionColumn = new Column<DemandeBean, String>(
new ClickableTextCell(nameColumnRenderer)) {
@Override
public String getValue(DemandeBean demandeBean) {
//String dateReception = demandeBean.getDateReception().toString();
//Date converti = VoltageUtils.convertirFormatDate(dateReception);
return demandeBean.getDateReception().toString();
//return converti.toString();
}
};
/*
// Create name column.
Column<DemandeBean, String> nameColumn = new Column<DemandeBean, String>(
new ClickableTextCell(nameColumnRenderer)) {
@Override
public String getValue(DemandeBean demandeBean) {
return demandeBean.getName();
}
};
nameColumn.setFieldUpdater(new FieldUpdater<DemandeBean, String>() {
public void update(int index, DemandeBean demandeBean, String value) {
if (presenter != null) {
presenter.onEditClicked(demandeBean);
}
}
}
);
*/
// renderer for nameColumn
SafeHtmlRenderer<String> deleteColumnRenderer = new AbstractSafeHtmlRenderer<String>() {
public SafeHtml render(String object) {
SafeHtmlBuilder builder = new SafeHtmlBuilder();
builder.appendHtmlConstant("<a><img src=\"images/btnDelete.gif\"/></a>");
return builder.toSafeHtml();
}
};
// delete column.
Column<DemandeBean, String> deleteColumn = new Column<DemandeBean, String>(
new ClickableTextCell(deleteColumnRenderer)) {
@Override
public String getValue(DemandeBean demandeBean) {
return GwtApplication.constantes.button_delete();
}
};
deleteColumn.setFieldUpdater(new FieldUpdater<DemandeBean, String>() {
public void update(int index, DemandeBean demandeBean, String value) {
if (presenter != null) {
presenter.onDeleteClicked(demandeBean);
}
}
}
);
/*
// Create description column.
TextColumn<DemandeBean> descriptionColumn = new TextColumn<DemandeBean>() {
@Override
public String getValue(DemandeBean demande) {
//return demande.getDescription();
return demande.getAutorite();
}
};
*/
// Colonne TYPE
TextColumn<DemandeBean> typeColumn = new TextColumn<DemandeBean>() {
@Override
public String getValue(DemandeBean demande) {
return demande.getTypeDemande();
}
};
// Colonne MEDIA
TextColumn<DemandeBean> mediaColumn = new TextColumn<DemandeBean>() {
@Override
public String getValue(DemandeBean demande) {
return demande.getTypeMedia();
}
};
mediaColumn.setSortable(true);
// Colonne Autorite
TextColumn<DemandeBean> autoriteColumn = new TextColumn<DemandeBean>() {
@Override
public String getValue(DemandeBean demande) {
return demande.getAutorite();
}
};
autoriteColumn.setSortable(true);
/*
List<DemandeBean> newData = new ArrayList(demandeTable.getVisibleItems());
//ListHandler<DemandeBean> columnSortHandler = new ListHandler<DemandeBean>(demandes);
ListHandler<DemandeBean> columnSortHandler = new ListHandler<DemandeBean>(newData);
GWT.log("taille newData : " + newData.size());
columnSortHandler.setComparator(mediaColumn, new Comparator<DemandeBean>() {
public int compare(DemandeBean o1, DemandeBean o2) {
GWT.log("appel compare");
if (o1 == o2) {
return 0;
}
// Compare the name columns.
if (o1 != null) {
return (o2 != null) ? o1.getTypeMedia().compareTo(o2.getTypeMedia()) : 1;
}
return -1;
}
});
demandeTable.addColumnSortHandler(columnSortHandler);
*/
demandeTable.addColumnSortHandler(new ColumnSortEvent.Handler() {
public void onColumnSort(ColumnSortEvent event) {
// La colonne triée
Column a = event.getColumn();
GWT.log("appel de onColumnSort");
List<DemandeBean> newData = new ArrayList(demandeTable.getVisibleItems());
if (event.isSortAscending()) {
GWT.log("Ordre ascendant");
Collections.sort(newData, new Comparator<DemandeBean>() {
public int compare(DemandeBean o1, DemandeBean o2) {
if (o1 == o2) {
return 0;
}
if (o1 != null) {
return (o2 != null) ? o1.getAutorite().compareTo(o2.getAutorite()) : 1;
}
return -1;
}
}
);
} else {
GWT.log("Ordre descendant");
Collections.sort(newData, new Comparator<DemandeBean>() {
public int compare(DemandeBean o1, DemandeBean o2) {
if (o1 == o2) {
return 0;
}
if (o1 != null) {
return (o2 != null) ? o2.getAutorite().compareTo(o1.getAutorite()) : 1;
}
return -1;
}
}
);
}
Range range = demandeTable.getVisibleRange();
int start = range.getStart();
demandeTable.setRowData(start, newData);
}
});
// Colonne operateur
TextColumn<DemandeBean> operateurColumn = new TextColumn<DemandeBean>() {
@Override
public String getValue(DemandeBean demande) {
//return demande.getDescription();
return demande.getOperateur();
}
};
// Colonne operateur
TextColumn<DemandeBean> urgenceColumn = new TextColumn<DemandeBean>() {
@Override
public String getValue(DemandeBean demande) {
//return demande.getDescription();
return String.valueOf(demande.getNiveauUrgenceAutorite());
}
};
// Colonne operateur
TextColumn<DemandeBean> prestationColumn = new TextColumn<DemandeBean>() {
@Override
public String getValue(DemandeBean demande) {
//return demande.getDescription();
return String.valueOf(demande.getPrestation());
}
};
/*
demandeTable.addColumn(idColumn,
GwtApplication.constantes.column_marketId());
demandeTable.addColumn(nameColumn,
GwtApplication.constantes.column_marketName());
demandeTable.addColumn(descriptionColumn,
GwtApplication.constantes.column_marketDescription());
demandeTable.addColumn(deleteColumn, "");
*/
demandeTable.addColumn(deleteColumn, "");
demandeTable.addColumn(etatColumn, "Etat");
demandeTable.addColumn(idColumn, "N° demande");
demandeTable.addColumn(autoriteColumn,"Autorité");
demandeTable.getColumnSortList().push(autoriteColumn);
demandeTable.addColumn(typeColumn,"Type");
demandeTable.addColumn(prestationColumn,"Code");
demandeTable.addColumn(mediaColumn, "Media");
demandeTable.addColumn(urgenceColumn,"Urgence");
demandeTable.addColumn(dateReceptionColumn,"Date réception");
//demandeTable.addColumn(descriptionColumn,"ID_AUTORITE");
//demandeTable.addColumn(operateurColumn,"Opérateur");
initWidget(getDisplay());
}
private Widget getDisplay() {
// main panel is content panel
// content panel configuration
FlowPanel content = new FlowPanel();
content.getElement().setId("content");
content.add(new HTML("<center><h2>"
+ GwtApplication.constantes.corbeilleDemandes_title() + "</h2></center>"));
content.add(rp);
content.add(new HTML("<h4>"
+ GwtApplication.constantes.marketPage_result() + "</h4>"));
content.add(feedback);
content.add(demandeTable);
content.add(pager);
content.setWidth("100%");
/*
FlowPanel content = new FlowPanel();
PaginatedTable table = new PaginatedTable(new TableTestModel());
content.add(table);
*/
return content;
}
public void setData(List<DemandeBean> demandes) {
if (null != demandes) {
GWT.log("setData : demandes pas nul");
} else {
GWT.log("setData : demandes est nul");
}
this.demandes = demandes;
demandeTable.setRowCount(demandes.size(), true);
demandeTable.setRowData(0, demandes);
demandeTable.setVisible(!this.demandes.isEmpty());
pager.setVisible(!this.demandes.isEmpty());
}
public void setPresenter(ListPresenter<DemandeBean> presenter) {
this.presenter = presenter;
}
public void reset() {
feedback.clear();
}
public void error() {
feedback.error(GwtApplication.constantes.error_internal());
}
public void noData() {
this.setData(new ArrayList<DemandeBean>());
feedback.info(GwtApplication.messages.list_counter_none());
}
public boolean confirmDeletion(DemandeBean demandeBean) {
return feedback.confirm(GwtApplication.messages
.deleteMarketPage_confirm(String.valueOf(demandeBean.getId())));
}
}
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