Examples with Column com.google.gwt.user.cellview.client.Column used on opensource projects

Example 16 with Column

use of com.google.gwt.user.cellview.client.Column in project perun by CESNET.

the class GetServicesPackages method getEmptyTable.

/**
	 * Returns empty table of ServicePackages
	 *
	 * @return empty table widget
	 */
public CellTable<ServicesPackage> getEmptyTable() {
    // Table data provider.
    dataProvider = new ListDataProvider<ServicesPackage>(list);
    // Cell table
    table = new PerunTable<ServicesPackage>(list);
    // Connect the table to the data provider.
    dataProvider.addDataDisplay(table);
    // Sorting
    ListHandler<ServicesPackage> columnSortHandler = new ListHandler<ServicesPackage>(dataProvider.getList());
    table.addColumnSortHandler(columnSortHandler);
    // table selection
    table.setSelectionModel(selectionModel, DefaultSelectionEventManager.<ServicesPackage>createCheckboxManager());
    // set empty content & loader
    table.setEmptyTableWidget(loaderImage);
    loaderImage.setEmptyResultMessage("There are no services packages.");
    // checkbox column column
    if (checkable) {
        table.addCheckBoxColumn();
    }
    table.addIdColumn("ServicesPackage Id", tableFieldUpdater, 110);
    if (!editable) {
        table.addNameColumn(tableFieldUpdater);
        table.addDescriptionColumn(tableFieldUpdater);
    } else {
        // NAME COLUMN
        final Column<ServicesPackage, String> nameColumn = new Column<ServicesPackage, String>(new TextInputCell()) {

            public String getValue(ServicesPackage object) {
                return object.getName();
            }
        };
        nameColumn.setFieldUpdater(new FieldUpdater<ServicesPackage, String>() {

            @Override
            public void update(int i, final ServicesPackage object, final String s) {
                object.setName(s.trim());
                selectionModel.setSelected(object, true);
            }
        });
        nameColumn.setSortable(true);
        columnSortHandler.setComparator(nameColumn, new Comparator<ServicesPackage>() {

            public int compare(ServicesPackage o1, ServicesPackage o2) {
                return o1.getName().compareTo(o2.getName());
            }
        });
        // DESCRIPTION COLUMN
        final Column<ServicesPackage, String> descriptionColumn = new Column<ServicesPackage, String>(new TextInputCell()) {

            public String getValue(ServicesPackage object) {
                return object.getDescription();
            }
        };
        descriptionColumn.setFieldUpdater(new FieldUpdater<ServicesPackage, String>() {

            @Override
            public void update(int i, final ServicesPackage object, final String s) {
                object.setDescription(s.trim());
                selectionModel.setSelected(object, true);
            }
        });
        descriptionColumn.setSortable(true);
        columnSortHandler.setComparator(descriptionColumn, new Comparator<ServicesPackage>() {

            public int compare(ServicesPackage o1, ServicesPackage o2) {
                return o1.getDescription().compareTo(o2.getDescription());
            }
        });
        // Link COLUMN
        final Column<ServicesPackage, String> linkColumn = new Column<ServicesPackage, String>(new CustomClickableTextCell()) {

            public String getValue(ServicesPackage object) {
                return "View services in package";
            }
        };
        linkColumn.setFieldUpdater(tableFieldUpdater);
        table.addColumn(nameColumn, "Name");
        table.setColumnWidth(nameColumn, "250px");
        table.addColumn(descriptionColumn, "Description");
        table.setColumnWidth(descriptionColumn, "250px");
        table.addColumn(linkColumn, "Manage services");
    }
    return table;
}

Example 17 with Column

use of com.google.gwt.user.cellview.client.Column in project perun by CESNET.

the class GroupResourceRequiredAttributesTabItem method draw.

public Widget draw() {
    titleWidget.setText(Utils.getStrippedStringWithEllipsis(group.getName()) + ": settings for " + Utils.getStrippedStringWithEllipsis(resource.getName()));
    if (JsonUtils.isExtendedInfoVisible()) {
        columnId = 3;
    } else {
        columnId = 2;
    }
    final VerticalPanel mainTab = new VerticalPanel();
    mainTab.setSize("100%", "100%");
    TabMenu menu = new TabMenu();
    final Label facilityId = new Label();
    JsonCallbackEvents events = new JsonCallbackEvents() {

        public void onFinished(JavaScriptObject jso) {
            Facility fac = (Facility) jso;
            facilityId.setText(String.valueOf(fac.getId()));
        }
    };
    GetFacility facility = new GetFacility(resourceId, events);
    facility.retrieveData();
    mainTab.add(new HTML("<hr size=\"2px\" />"));
    // set attributes type to group_resource
    final Map<String, Integer> ids = new HashMap<String, Integer>();
    ids.put("resourceToGetServicesFrom", resourceId);
    ids.put("group", groupId);
    // gets all required group attributes for specified group and resource
    final GetResourceRequiredAttributesV2 reqAttrs = new GetResourceRequiredAttributesV2(ids);
    final CellTable<Attribute> reqAttrsTable = reqAttrs.getTable();
    reqAttrsTable.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.DISABLED);
    // get all required group_resource attributes too
    ids.put("resource", resourceId);
    reqAttrs.setIds(ids);
    reqAttrs.retrieveData();
    final ListBoxWithObjects<RichMember> listBox = new ListBoxWithObjects<RichMember>();
    listBox.setTitle(WidgetTranslation.INSTANCE.selectingMember());
    // local event fills the listBox
    JsonCallbackEvents localEvents = new JsonCallbackEvents() {

        public void onFinished(JavaScriptObject jso) {
            ArrayList<RichMember> mems = JsonUtils.jsoAsList(jso);
            mems = new TableSorter<RichMember>().sortByName(mems);
            listBox.addNotSelectedOption();
            for (int i = 0; i < mems.size(); i++) {
                listBox.addItem(mems.get(i));
            }
            listBox.addAllOption();
        }
    };
    final GetGroupRichMembers getGroupRichMembers = new GetGroupRichMembers(groupId, localEvents);
    getGroupRichMembers.retrieveData();
    reqAttrsTable.addStyleName("perun-table");
    final ScrollPanel sp = new ScrollPanel(reqAttrsTable);
    sp.addStyleName("perun-tableScrollPanel");
    // store for column with values
    final Column<Attribute, ?> columnStore = reqAttrsTable.getColumn(columnId);
    listBox.addChangeHandler(new ChangeHandler() {

        public void onChange(ChangeEvent event) {
            int selectedIndex = listBox.getSelectedIndex();
            // no member selected
            if (selectedIndex == 0) {
                // offer just group and group resource attributes
                reqAttrs.clearTable();
                ids.clear();
                ids.put("resourceToGetServicesFrom", resourceId);
                // get groups attributes
                ids.put("group", groupId);
                reqAttrs.setIds(ids);
                reqAttrs.retrieveData();
                // get group_resource attributes
                ids.put("resource", resourceId);
                reqAttrs.setIds(ids);
                reqAttrs.retrieveData();
                reqAttrs.sortTable();
            // some member is selected
            } else {
                reqAttrs.clearTable();
                ids.clear();
                ids.put("resourceToGetServicesFrom", resourceId);
                // get member, member-resource, user, user-facility  attributes
                ids.put("member", listBox.getSelectedObject().getId());
                ids.put("resource", resourceId);
                // to get user, user-facility attrs
                ids.put("workWithUserAttributes", 1);
                reqAttrs.setIds(ids);
                reqAttrs.retrieveData();
                // all members are selected
                if (selectedIndex == 1) {
                    // remove value column
                    reqAttrsTable.removeColumn(columnId);
                    // create own value column
                    // Value column
                    Column<Attribute, Attribute> valueColumn = JsonUtils.addColumn(new PerunAttributeValueCell(), "Value", new JsonUtils.GetValue<Attribute, Attribute>() {

                        public Attribute getValue(Attribute attribute) {
                            attribute.setValueAsJso(null);
                            return attribute;
                        }
                    }, new FieldUpdater<Attribute, Attribute>() {

                        public void update(int index, Attribute object, Attribute value) {
                            object = value;
                            reqAttrsTable.getSelectionModel().setSelected(object, object.isAttributeValid());
                        }
                    });
                    // add to table
                    reqAttrsTable.insertColumn(columnId, valueColumn, "Value");
                } else {
                    // member selected
                    // return original column
                    reqAttrsTable.removeColumn(columnId);
                    reqAttrsTable.insertColumn(columnId, columnStore, "Value");
                }
            }
        }
    });
    CustomButton saveChangesButton = TabMenu.getPredefinedButton(ButtonType.SAVE, ButtonTranslation.INSTANCE.saveChangesInAttributes(), new ClickHandler() {

        public void onClick(ClickEvent event) {
            ArrayList<Attribute> list = reqAttrs.getTableSelectedList();
            if (UiElements.cantSaveEmptyListDialogBox(list)) {
                // send lists
                ArrayList<Attribute> groupList = new ArrayList<Attribute>();
                ArrayList<Attribute> groupResourceList = new ArrayList<Attribute>();
                ArrayList<Attribute> memberList = new ArrayList<Attribute>();
                ArrayList<Attribute> memberResourceList = new ArrayList<Attribute>();
                ArrayList<Attribute> userList = new ArrayList<Attribute>();
                ArrayList<Attribute> userFacilityList = new ArrayList<Attribute>();
                SetAttributes request = new SetAttributes();
                int selectedIndex = listBox.getSelectedIndex();
                // if all selected
                if (selectedIndex == 1) {
                    // TODO - USE NEW CONFIRM DESIGN
                    if (!Window.confirm("Same values for selected attributes will be set to all members in group." + "\n\nDo you want to continue ?")) {
                        return;
                    }
                }
                // get different attributes
                for (Attribute attr : list) {
                    if (attr.getNamespace().contains("urn:perun:group:")) {
                        groupList.add(attr);
                    } else if (attr.getNamespace().contains("urn:perun:group_resource:")) {
                        groupResourceList.add(attr);
                    } else if (attr.getNamespace().contains("urn:perun:member:")) {
                        memberList.add(attr);
                    } else if (attr.getNamespace().contains("urn:perun:member_resource:")) {
                        memberResourceList.add(attr);
                    } else if (attr.getNamespace().contains("urn:perun:user:")) {
                        userList.add(attr);
                    } else if (attr.getNamespace().contains("urn:perun:user_facility:")) {
                        userFacilityList.add(attr);
                    }
                }
                // if not empty, send request
                if (!(groupList.isEmpty())) {
                    ids.clear();
                    ids.put("group", groupId);
                    request.setAttributes(ids, groupList);
                }
                if (!(groupResourceList.isEmpty())) {
                    ids.clear();
                    ids.put("group", groupId);
                    ids.put("resource", resourceId);
                    request.setAttributes(ids, groupResourceList);
                }
                if (!(memberList.isEmpty())) {
                    if (selectedIndex == 1) {
                        // for all members
                        for (int i = 0; i < listBox.getItemCount(); i++) {
                            ids.clear();
                            ids.put("member", (listBox.getObjectAt(i)).getId());
                            request.setAttributes(ids, memberList);
                        }
                    } else {
                        // for one member
                        ids.clear();
                        ids.put("member", listBox.getSelectedObject().getId());
                        request.setAttributes(ids, memberList);
                    }
                }
                if (!(memberResourceList.isEmpty())) {
                    if (selectedIndex == 1) {
                        // for all members
                        for (int i = 0; i < listBox.getItemCount(); i++) {
                            ids.clear();
                            ids.put("resource", resourceId);
                            ids.put("member", (listBox.getObjectAt(i)).getId());
                            request.setAttributes(ids, memberResourceList);
                        }
                    } else {
                        // for one member
                        ids.clear();
                        ids.put("resource", resourceId);
                        ids.put("member", listBox.getSelectedObject().getId());
                        request.setAttributes(ids, memberResourceList);
                    }
                }
                if (!(userList.isEmpty())) {
                    if (selectedIndex == 1) {
                        // for all members
                        for (int i = 0; i < listBox.getItemCount(); i++) {
                            ids.clear();
                            ids.put("user", (listBox.getObjectAt(i)).getUser().getId());
                            request.setAttributes(ids, userList);
                        }
                    } else {
                        // for one member
                        ids.clear();
                        ids.put("user", listBox.getSelectedObject().getUser().getId());
                        request.setAttributes(ids, userList);
                    }
                }
                if (!(userFacilityList.isEmpty())) {
                    if (selectedIndex == 1) {
                        // for all members
                        for (int i = 0; i < listBox.getItemCount(); i++) {
                            ids.clear();
                            ids.put("user", listBox.getObjectAt(i).getUser().getId());
                            ids.put("facility", Integer.parseInt(facilityId.getText()));
                            request.setAttributes(ids, userFacilityList);
                        }
                    } else {
                        // for one member
                        ids.clear();
                        ids.put("user", listBox.getSelectedObject().getUser().getId());
                        ids.put("facility", Integer.parseInt(facilityId.getText()));
                        request.setAttributes(ids, userFacilityList);
                    }
                }
                reqAttrs.clearTableSelectedSet();
            }
        }
    });
    menu.addWidget(UiElements.getRefreshButton(this));
    menu.addWidget(saveChangesButton);
    if (!session.isGroupAdmin(groupId) && !session.isVoAdmin(group.getVoId()))
        saveChangesButton.setEnabled(false);
    menu.addWidget(new HTML("<strong>Group members:</strong>"));
    menu.addWidget(listBox);
    // table content
    session.getUiElements().resizePerunTable(sp, 350, this);
    mainTab.add(menu);
    mainTab.add(sp);
    mainTab.setCellHeight(sp, "100%");
    mainTab.setCellHeight(menu, "30px");
    this.contentWidget.setWidget(mainTab);
    return getWidget();
}

Example 18 with Column

use of com.google.gwt.user.cellview.client.Column in project perun by CESNET.

the class FindSimilarPublications method getEmptyTable.

/**
	 * Returns table of users publications
	 * @return table
	 */
public CellTable<Publication> getEmptyTable() {
    // Table data provider.
    dataProvider = new ListDataProvider<Publication>(list);
    // Cell table
    table = new PerunTable<Publication>(list);
    // display row-count for perun admin only
    if (!session.isPerunAdmin()) {
        table.removeRowCountChangeHandler();
    }
    // Connect the table to the data provider.
    dataProvider.addDataDisplay(table);
    // Sorting
    ListHandler<Publication> columnSortHandler = new ListHandler<Publication>(dataProvider.getList());
    table.addColumnSortHandler(columnSortHandler);
    // table selection
    table.setSelectionModel(selectionModel, DefaultSelectionEventManager.<Publication>createCheckboxManager());
    // set empty content & loader
    table.setEmptyTableWidget(loaderImage);
    loaderImage.setEmptyResultMessage("No similar publications found.");
    // show checkbox column
    if (this.checkable) {
        // checkbox column column
        table.addCheckBoxColumn();
    }
    // ID COLUMN
    table.addIdColumn("Publication ID", tableFieldUpdater, 60);
    Column<Publication, ImageResource> lockedColumn = new Column<Publication, ImageResource>(new CustomImageResourceCell("click")) {

        public ImageResource getValue(Publication object) {
            if (object.getLocked() == true) {
                return SmallIcons.INSTANCE.lockIcon();
            } else {
                return SmallIcons.INSTANCE.lockOpenIcon();
            }
        }

        public void onBrowserEvent(final Context context, final Element elem, final Publication object, NativeEvent event) {
            // on click and for perun admin
            if ("click".equals(event.getType()) && session.isPerunAdmin()) {
                final ImageResource value;
                if (object.getLocked() == true) {
                    value = SmallIcons.INSTANCE.lockOpenIcon();
                    object.setLocked(false);
                } else {
                    value = SmallIcons.INSTANCE.lockIcon();
                    object.setLocked(true);
                }
                LockUnlockPublications request = new LockUnlockPublications(new JsonCallbackEvents() {

                    @Override
                    public void onLoadingStart() {
                        getCell().setValue(context, elem, SmallIcons.INSTANCE.updateIcon());
                    }

                    @Override
                    public void onFinished(JavaScriptObject jso) {
                        // change picture (object already changed)
                        getCell().setValue(context, elem, value);
                    }

                    @Override
                    public void onError(PerunError error) {
                        // on error switch object back
                        if (object.getLocked() == true) {
                            object.setLocked(false);
                            getCell().setValue(context, elem, SmallIcons.INSTANCE.lockOpenIcon());
                        } else {
                            object.setLocked(true);
                            getCell().setValue(context, elem, SmallIcons.INSTANCE.lockIcon());
                        }
                    }
                });
                // send request
                ArrayList<Publication> list = new ArrayList<Publication>();
                list.add(object);
                request.lockUnlockPublications(object.getLocked(), list);
            }
        }
    };
    table.addColumn(lockedColumn, "Lock");
    // TITLE COLUMN
    Column<Publication, String> titleColumn = JsonUtils.addColumn(new JsonUtils.GetValue<Publication, String>() {

        public String getValue(Publication object) {
            return object.getTitle();
        }
    }, this.tableFieldUpdater);
    titleColumn.setSortable(true);
    columnSortHandler.setComparator(titleColumn, new PublicationComparator(PublicationComparator.Column.TITLE));
    table.addColumn(titleColumn, "Title");
    // if display authors
    if (ids.containsKey("authors")) {
        if ((Integer) ids.get("authors") == 1) {
            // AUTHORS COLUMN
            Column<Publication, String> authorColumn = JsonUtils.addColumn(new JsonUtils.GetValue<Publication, String>() {

                public String getValue(Publication object) {
                    return object.getAuthorsFormatted();
                }
            }, this.tableFieldUpdater);
            authorColumn.setSortable(true);
            columnSortHandler.setComparator(authorColumn, new PublicationComparator(PublicationComparator.Column.AUTHORS));
            table.addColumn(authorColumn, "Reported by");
        }
    }
    // YEAR COLUMN
    Column<Publication, String> yearColumn = JsonUtils.addColumn(new JsonUtils.GetValue<Publication, String>() {

        public String getValue(Publication object) {
            return String.valueOf(object.getYear());
        }
    }, this.tableFieldUpdater);
    yearColumn.setSortable(true);
    columnSortHandler.setComparator(yearColumn, new PublicationComparator(PublicationComparator.Column.YEAR));
    table.addColumn(yearColumn, "Year");
    // CATEGORY COLUMN
    Column<Publication, String> categoryColumn = JsonUtils.addColumn(new JsonUtils.GetValue<Publication, String>() {

        public String getValue(Publication object) {
            return object.getCategoryName();
        }
    }, this.tableFieldUpdater);
    categoryColumn.setSortable(true);
    columnSortHandler.setComparator(categoryColumn, new PublicationComparator(PublicationComparator.Column.CATEGORY));
    table.addColumn(categoryColumn, "Category");
    // THANKS COLUMN
    Column<Publication, String> thanksColumn = JsonUtils.addColumn(new JsonUtils.GetValue<Publication, String>() {

        public String getValue(Publication object) {
            String result = "";
            JsArray<Thanks> thks = object.getThanks();
            for (int i = 0; i < thks.length(); i++) {
                result += thks.get(i).getOwnerName() + ", ";
            }
            if (result.length() >= 2) {
                result = result.substring(0, result.length() - 2);
            }
            return result;
        }
    }, this.tableFieldUpdater);
    thanksColumn.setSortable(true);
    columnSortHandler.setComparator(thanksColumn, new PublicationComparator(PublicationComparator.Column.THANKS));
    table.addColumn(thanksColumn, "Thanked to");
    // CITE COLUMN
    Column<Publication, String> citaceColumn = JsonUtils.addColumn(new JsonUtils.GetValue<Publication, String>() {

        public String getValue(Publication object) {
            return "Cite";
        }
    }, new FieldUpdater<Publication, String>() {

        public void update(int index, Publication object, String value) {
            SimplePanel sp = new SimplePanel();
            sp.add(new HTML(object.getMain()));
            Confirm cf = new Confirm("Cite publication", sp, true);
            cf.show();
        }

        ;
    });
    table.addColumn(citaceColumn, "Cite");
    return table;
}

Example 19 with Column

use of com.google.gwt.user.cellview.client.Column in project perun by CESNET.

the class GetRequiredAttributesV2 method getEmptyTable.

/**
	 * Returns empty table widget with attributes
	 *
	 * @return table widget
	 */
public CellTable<Attribute> getEmptyTable() {
    // Table data provider.
    dataProvider = new ListDataProvider<Attribute>(list);
    // Cell table
    table = new PerunTable<Attribute>(list);
    // remove row count change handler
    table.removeRowCountChangeHandler();
    // Connect the table to the data provider.
    dataProvider.addDataDisplay(table);
    // Sorting
    ListHandler<Attribute> columnSortHandler = new ListHandler<Attribute>(dataProvider.getList());
    table.addColumnSortHandler(columnSortHandler);
    // set empty content & loader
    table.setEmptyTableWidget(loaderImage);
    loaderImage.setEmptyResultMessage("No settings found. Use 'Add' button to add new setting.");
    // because of tab index
    table.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.DISABLED);
    // checkbox column
    if (checkable) {
        // checkbox column column
        Column<Attribute, Attribute> checkBoxColumn = new Column<Attribute, Attribute>(new PerunCheckboxCell<Attribute>(true, false, false)) {

            @Override
            public Attribute getValue(Attribute object) {
                // Get the value from the selection model.
                GeneralObject go = object.cast();
                go.setChecked(selectionModel.isSelected(object));
                return go.cast();
            }
        };
        // updates the columns size
        table.setColumnWidth(checkBoxColumn, 40.0, Unit.PX);
        // Add the columns
        // Checkbox column header
        CheckboxCell cb = new CheckboxCell();
        Header<Boolean> checkBoxHeader = new Header<Boolean>(cb) {

            public Boolean getValue() {
                //return true to see a checked checkbox.
                return false;
            }
        };
        checkBoxHeader.setUpdater(new ValueUpdater<Boolean>() {

            public void update(Boolean value) {
                // sets selected to all, if value = true, unselect otherwise
                for (Attribute obj : list) {
                    if (obj.isWritable()) {
                        selectionModel.setSelected(obj, value);
                    }
                }
            }
        });
        // table selection
        table.setSelectionModel(selectionModel, DefaultSelectionEventManager.<Attribute>createCheckboxManager(0));
        table.addColumn(checkBoxColumn, checkBoxHeader);
    }
    // Create ID column.
    table.addIdColumn("Attr ID", null, 90);
    // Name column
    Column<Attribute, Attribute> nameColumn = JsonUtils.addColumn(new PerunAttributeNameCell());
    // Description column
    Column<Attribute, Attribute> descriptionColumn = JsonUtils.addColumn(new PerunAttributeDescriptionCell());
    // Value column
    Column<Attribute, Attribute> valueColumn = JsonUtils.addColumn(new PerunAttributeValueCell());
    valueColumn.setFieldUpdater(new FieldUpdater<Attribute, Attribute>() {

        public void update(int index, Attribute object, Attribute value) {
            object = value;
            selectionModel.setSelected(object, object.isAttributeValid());
        }
    });
    // Sorting name column
    nameColumn.setSortable(true);
    columnSortHandler.setComparator(nameColumn, new Comparator<Attribute>() {

        public int compare(Attribute o1, Attribute o2) {
            Collator customCollator = Collator.getInstance();
            String key1 = o1.getDisplayName();
            String key2 = o2.getDisplayName();
            return customCollator.compare(key1, key2);
        }
    });
    // Add sorting
    this.table.addColumnSortHandler(columnSortHandler);
    // updates the columns size
    this.table.setColumnWidth(nameColumn, 200.0, Unit.PX);
    // Add the columns.
    this.table.addColumn(nameColumn, "Name");
    this.table.addColumn(valueColumn, "Value");
    this.table.addColumn(descriptionColumn, "Description");
    return this.table;
}

Example 20 with Column

use of com.google.gwt.user.cellview.client.Column in project perun by CESNET.

the class GetResourceRequiredAttributesV2 method getEmptyTable.

/**
	 * Returns empty table widget with attributes
	 *
	 * @return table widget
	 */
public CellTable<Attribute> getEmptyTable() {
    // Table data provider.
    dataProvider = new ListDataProvider<Attribute>(list);
    // Cell table
    table = new PerunTable<Attribute>(list);
    // remove row count change handler
    table.removeRowCountChangeHandler();
    // Connect the table to the data provider.
    dataProvider.addDataDisplay(table);
    // Sorting
    ListHandler<Attribute> columnSortHandler = new ListHandler<Attribute>(dataProvider.getList());
    table.addColumnSortHandler(columnSortHandler);
    // set empty content & loader
    table.setEmptyTableWidget(loaderImage);
    // because of tab index
    table.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.DISABLED);
    // checkbox column
    if (checkable) {
        // checkbox column column
        Column<Attribute, Attribute> checkBoxColumn = new Column<Attribute, Attribute>(new PerunCheckboxCell<Attribute>(true, false, false)) {

            @Override
            public Attribute getValue(Attribute object) {
                // Get the value from the selection model.
                GeneralObject go = object.cast();
                go.setChecked(selectionModel.isSelected(object));
                return go.cast();
            }
        };
        // updates the columns size
        table.setColumnWidth(checkBoxColumn, 40.0, Unit.PX);
        // Add the columns
        // Checkbox column header
        CheckboxCell cb = new CheckboxCell();
        Header<Boolean> checkBoxHeader = new Header<Boolean>(cb) {

            public Boolean getValue() {
                //return true to see a checked checkbox.
                return false;
            }
        };
        checkBoxHeader.setUpdater(new ValueUpdater<Boolean>() {

            public void update(Boolean value) {
                // sets selected to all, if value = true, unselect otherwise
                for (Attribute obj : list) {
                    if (obj.isWritable()) {
                        selectionModel.setSelected(obj, value);
                    }
                }
            }
        });
        // table selection
        table.setSelectionModel(selectionModel, DefaultSelectionEventManager.<Attribute>createCheckboxManager(0));
        table.addColumn(checkBoxColumn, checkBoxHeader);
    }
    // Create ID column.
    table.addIdColumn("Attr ID", null, 90);
    // Name column
    Column<Attribute, Attribute> nameColumn = JsonUtils.addColumn(new PerunAttributeNameCell());
    // Value column
    Column<Attribute, Attribute> valueColumn = JsonUtils.addColumn(new PerunAttributeValueCell());
    valueColumn.setFieldUpdater(new FieldUpdater<Attribute, Attribute>() {

        public void update(int index, Attribute object, Attribute value) {
            object = value;
            selectionModel.setSelected(object, object.isAttributeValid());
        }
    });
    // Description column
    Column<Attribute, Attribute> descriptionColumn = JsonUtils.addColumn(new PerunAttributeDescriptionCell());
    // Sorting name column
    nameColumn.setSortable(true);
    columnSortHandler.setComparator(nameColumn, new AttributeComparator<Attribute>(AttributeComparator.Column.TRANSLATED_NAME));
    // Sorting description column
    descriptionColumn.setSortable(true);
    columnSortHandler.setComparator(descriptionColumn, new AttributeComparator<Attribute>(AttributeComparator.Column.TRANSLATED_DESCRIPTION));
    // Add sorting
    this.table.addColumnSortHandler(columnSortHandler);
    // updates the columns size
    this.table.setColumnWidth(nameColumn, 200.0, Unit.PX);
    // Add the columns.
    this.table.addColumn(nameColumn, "Name");
    this.table.addColumn(valueColumn, "Value");
    this.table.addColumn(descriptionColumn, "Description");
    return this.table;
}