Java tutorial
/******************************************************************************* * Copyright (c) 2011 neXtep Software and contributors. * All rights reserved. * * This file is part of neXtep designer. * * NeXtep designer is free software: you can redistribute it * and/or modify it under the terms of the GNU General Public * License as published by the Free Software Foundation, either * version 3 of the License, or any later version. * * NeXtep designer 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with neXtep designer. * If not, see <http://www.gnu.org/licenses/>. * * Contributors: * neXtep Softwares - initial API and implementation *******************************************************************************/ package com.nextep.designer.dbgm.ui.actions; import java.text.MessageFormat; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.swt.widgets.Display; import com.nextep.datadesigner.model.IElementType; import com.nextep.datadesigner.model.IReferenceable; import com.nextep.datadesigner.model.ITypedObject; import com.nextep.designer.dbgm.model.ICheckConstraint; import com.nextep.designer.dbgm.model.ICheckConstraintContainer; import com.nextep.designer.dbgm.ui.DBGMUIMessages; import com.nextep.designer.ui.factories.UIControllerFactory; import com.nextep.designer.ui.model.ITypedObjectUIController; import com.nextep.designer.ui.model.base.AbstractFormActionProvider; import com.nextep.designer.vcs.ui.VCSUIPlugin; import com.nextep.designer.vcs.ui.services.IWorkspaceUIService; /** * @author Christophe Fondacci */ public class CheckConstraintsActionProvider extends AbstractFormActionProvider { @Override public Object add(ITypedObject parent) { final ITypedObjectUIController controller = UIControllerFactory .getController(IElementType.getInstance(ICheckConstraint.TYPE_ID)); final ICheckConstraintContainer table = (ICheckConstraintContainer) parent; int constraintsCount = table.getCheckConstraints().size(); return controller.emptyInstance("CHECK_" + constraintsCount, parent); } @Override public void remove(ITypedObject parent, ITypedObject toRemove) { final ICheckConstraint checkConstraint = (ICheckConstraint) toRemove; // Asking user confirmation final boolean confirmed = MessageDialog.openQuestion(Display.getDefault().getActiveShell(), MessageFormat.format(DBGMUIMessages.getString("editor.table.confirmDelCheckTitle"), //$NON-NLS-1$ checkConstraint.getName()), MessageFormat.format(DBGMUIMessages.getString("editor.table.confirmDelCheck"), //$NON-NLS-1$ checkConstraint.getName(), checkConstraint.getConstrainedTable().getName())); if (confirmed) { // If confirmed, we remove it through our workspace service final IWorkspaceUIService workspaceService = VCSUIPlugin.getService(IWorkspaceUIService.class); workspaceService.remove((IReferenceable) toRemove); } } }