Java tutorial
/* * This library is part of OpenCms - * the Open Source Content Management System * * Copyright (C) Alkacon Software (http://www.alkacon.com) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * For further information about Alkacon Software, please see the * company website: http://www.alkacon.com * * For further information about OpenCms, please see the * project website: http://www.opencms.org * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package org.opencms.ade.sitemap.client.alias.simple; import org.opencms.ade.sitemap.client.alias.A_CmsAliasTableColumn; import org.opencms.ade.sitemap.client.alias.CmsAliasTableController; import org.opencms.ade.sitemap.client.alias.CmsCellTableUtil; import org.opencms.gwt.client.ui.css.I_CmsCellTableResources; import org.opencms.gwt.shared.alias.CmsAliasTableRow; import java.util.ArrayList; import java.util.List; import com.google.gwt.core.client.GWT; import com.google.gwt.user.cellview.client.CellTable; import com.google.gwt.user.cellview.client.ColumnSortEvent; import com.google.gwt.view.client.DefaultSelectionEventManager; import com.google.gwt.view.client.ListDataProvider; import com.google.gwt.view.client.MultiSelectionModel; import com.google.gwt.view.client.ProvidesKey; import com.google.gwt.view.client.SelectionChangeEvent; /** * The cell table which is the main widget used for the bulk alias editor.<p> */ public class CmsAliasCellTable extends CellTable<CmsAliasTableRow> { /** The alias controller. */ CmsAliasTableController m_controller; /** The data provider. */ private ListDataProvider<CmsAliasTableRow> m_dataProvider; /** The error column. */ private CmsAliasErrorColumn m_errorColumn; /** * Creates a new cell table with the given controller.<p> * * @param controller the alias editor controller which should be used by the cell table */ public CmsAliasCellTable(CmsAliasTableController controller) { super(Integer.MAX_VALUE, (CellTable.Resources) GWT.create(I_CmsCellTableResources.class), new ProvidesKey<CmsAliasTableRow>() { public Object getKey(CmsAliasTableRow item) { return item.getKey(); } }); m_controller = controller; m_errorColumn = new CmsAliasErrorColumn(); @SuppressWarnings("unchecked") A_CmsAliasTableColumn<CmsAliasTableRow, ?, CmsAliasCellTable>[] columns = new A_CmsAliasTableColumn[] { new CmsAliasSelectionColumn(this), new CmsAliasPathColumn(this), new CmsResourcePathColumn(this), new CmsAliasModeColumn(this), m_errorColumn }; m_dataProvider = new ListDataProvider<CmsAliasTableRow>(); m_dataProvider.addDataDisplay(this); ColumnSortEvent.ListHandler<CmsAliasTableRow> sortHandler = new ColumnSortEvent.ListHandler<CmsAliasTableRow>( m_dataProvider.getList()); for (A_CmsAliasTableColumn<CmsAliasTableRow, ?, CmsAliasCellTable> column : columns) { column.initSortHandler(sortHandler); } addColumnSortHandler(sortHandler); final MultiSelectionModel<CmsAliasTableRow> selectionModel = new MultiSelectionModel<CmsAliasTableRow>( getKeyProvider()); selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() { public void onSelectionChange(SelectionChangeEvent event) { m_controller.changeSelection(selectionModel.getSelectedSet()); } }); setSelectionModel(selectionModel, DefaultSelectionEventManager.<CmsAliasTableRow>createCheckboxManager()); for (A_CmsAliasTableColumn<?, ?, CmsAliasCellTable> column : columns) { column.addToTable(this); } CmsCellTableUtil.ensureCellTableParentResize(this); } /** * Gets the alias editor controller used by this table.<p> * * @return the alias editor controller */ public CmsAliasTableController getController() { return m_controller; } /** * Gets the error column.<p> * * @return the error column */ public CmsAliasErrorColumn getErrorColumn() { return m_errorColumn; } /** * Gets the list of rows internally used by the data provider for this table.<p> * * @return the internal data list */ public List<CmsAliasTableRow> getLiveDataList() { return m_dataProvider.getList(); } /** * Gets the list of selected rows.<p> * * @return the list of selected rows */ public List<CmsAliasTableRow> getSelectedRows() { return new ArrayList<CmsAliasTableRow>(getSelectionModel().getSelectedSet()); } /** * @see com.google.gwt.user.cellview.client.AbstractHasData#getSelectionModel() * * (Overridden to use a less general return type) */ @SuppressWarnings("unchecked") @Override public MultiSelectionModel<CmsAliasTableRow> getSelectionModel() { return (MultiSelectionModel<CmsAliasTableRow>) (super.getSelectionModel()); } }