Java tutorial
/* * ==================================================================== * * The ObjectStyle Group Software License, Version 1.0 * * Copyright (c) 2006 The ObjectStyle Group and individual authors of the * software. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The end-user documentation included with the redistribution, if any, must * include the following acknowlegement: "This product includes software * developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately, * this acknowlegement may appear in the software itself, if and wherever such * third-party acknowlegements normally appear. * * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or * promote products derived from this software without prior written permission. * For written permission, please contact andrus@objectstyle.org. * * 5. Products derived from this software may not be called "ObjectStyle" nor * may "ObjectStyle" appear in their names without prior written permission of * the ObjectStyle Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 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For more information on the ObjectStyle * Group, please see <http://objectstyle.org/>. * */ package org.objectstyle.wolips.eomodeler.editors.entity; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.FormLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.views.properties.tabbed.AbstractPropertySection; import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage; import org.objectstyle.wolips.baseforplugins.util.ComparisonUtils; import org.objectstyle.wolips.eomodeler.Messages; import org.objectstyle.wolips.eomodeler.core.model.EOEntity; import org.objectstyle.wolips.eomodeler.core.model.EOModel; import org.objectstyle.wolips.eomodeler.editors.storedProcedures.EOStoredProceduresLabelProvider; import org.objectstyle.wolips.eomodeler.editors.storedProcedures.EOStoredProceduresListContentProvider; import org.objectstyle.wolips.eomodeler.utils.ComboViewerBinding; import org.objectstyle.wolips.eomodeler.utils.FormUtils; public class EOEntityStoredProceduresEditorSection extends AbstractPropertySection { private EOEntity myEntity; private ComboViewer myInsertComboViewer; private ComboViewer myDeleteComboViewer; private ComboViewer myFetchAllComboViewer; private ComboViewer myFetchWithPrimaryKeyComboViewer; private ComboViewer myNextPrimaryKeyComboViewer; private ComboViewerBinding myInsertBinding; private ComboViewerBinding myDeleteBinding; private ComboViewerBinding myFetchAllBinding; private ComboViewerBinding myFetchWithPrimaryKeyBinding; private ComboViewerBinding myNextPrimaryKeyBinding; public EOEntityStoredProceduresEditorSection() { // DO NOTHING } public void createControls(Composite _parent, TabbedPropertySheetPage _tabbedPropertySheetPage) { super.createControls(_parent, _tabbedPropertySheetPage); Composite form = getWidgetFactory().createFlatFormComposite(_parent); FormLayout formLayout = new FormLayout(); form.setLayout(formLayout); Composite topForm = FormUtils.createForm(getWidgetFactory(), form); myInsertComboViewer = createStoredProcedureComboViewer(topForm, EOEntity.INSERT_PROCEDURE); myDeleteComboViewer = createStoredProcedureComboViewer(topForm, EOEntity.DELETE_PROCEDURE); myFetchAllComboViewer = createStoredProcedureComboViewer(topForm, EOEntity.FETCH_ALL_PROCEDURE); myFetchWithPrimaryKeyComboViewer = createStoredProcedureComboViewer(topForm, EOEntity.FETCH_WITH_PRIMARY_KEY_PROCEDURE); myNextPrimaryKeyComboViewer = createStoredProcedureComboViewer(topForm, EOEntity.NEXT_PRIMARY_KEY_PROCEDURE); } protected ComboViewer createStoredProcedureComboViewer(Composite _parent, String _name) { getWidgetFactory().createCLabel(_parent, Messages.getString("EOEntity." + _name), SWT.NONE); Combo insertCombo = new Combo(_parent, SWT.BORDER | SWT.FLAT | SWT.READ_ONLY); ComboViewer comboViewer = new ComboViewer(insertCombo); comboViewer.setLabelProvider(new EOStoredProceduresLabelProvider()); comboViewer.setContentProvider(new EOStoredProceduresListContentProvider(true)); GridData comboLayoutData = new GridData(GridData.FILL_HORIZONTAL); insertCombo.setLayoutData(comboLayoutData); return comboViewer; } public void setInput(IWorkbenchPart part, ISelection selection) { if (ComparisonUtils.equals(selection, getSelection())) { return; } super.setInput(part, selection); Object selectedObject = ((IStructuredSelection) selection).getFirstElement(); EOEntity entity = (EOEntity) selectedObject; if (!ComparisonUtils.equals(entity, myEntity)) { disposeBindings(); myEntity = entity; if (myEntity != null) { myInsertComboViewer.setInput(myEntity); myDeleteComboViewer.setInput(myEntity); myFetchAllComboViewer.setInput(myEntity); myFetchWithPrimaryKeyComboViewer.setInput(myEntity); myNextPrimaryKeyComboViewer.setInput(myEntity); myInsertBinding = new ComboViewerBinding(myInsertComboViewer, myEntity, EOEntity.INSERT_PROCEDURE, myEntity.getModel(), EOModel.STORED_PROCEDURES, EOStoredProceduresListContentProvider.BLANK_STORED_PROCEDURE); myDeleteBinding = new ComboViewerBinding(myDeleteComboViewer, myEntity, EOEntity.DELETE_PROCEDURE, myEntity.getModel(), EOModel.STORED_PROCEDURES, EOStoredProceduresListContentProvider.BLANK_STORED_PROCEDURE); myFetchAllBinding = new ComboViewerBinding(myFetchAllComboViewer, myEntity, EOEntity.FETCH_ALL_PROCEDURE, myEntity.getModel(), EOModel.STORED_PROCEDURES, EOStoredProceduresListContentProvider.BLANK_STORED_PROCEDURE); myFetchWithPrimaryKeyBinding = new ComboViewerBinding(myFetchWithPrimaryKeyComboViewer, myEntity, EOEntity.FETCH_WITH_PRIMARY_KEY_PROCEDURE, myEntity.getModel(), EOModel.STORED_PROCEDURES, EOStoredProceduresListContentProvider.BLANK_STORED_PROCEDURE); myNextPrimaryKeyBinding = new ComboViewerBinding(myNextPrimaryKeyComboViewer, myEntity, EOEntity.NEXT_PRIMARY_KEY_PROCEDURE, myEntity.getModel(), EOModel.STORED_PROCEDURES, EOStoredProceduresListContentProvider.BLANK_STORED_PROCEDURE); } } } protected void disposeBindings() { if (myInsertBinding != null) { myInsertBinding.dispose(); } if (myDeleteBinding != null) { myDeleteBinding.dispose(); } if (myFetchAllBinding != null) { myFetchAllBinding.dispose(); } if (myFetchWithPrimaryKeyBinding != null) { myFetchWithPrimaryKeyBinding.dispose(); } if (myNextPrimaryKeyBinding != null) { myNextPrimaryKeyBinding.dispose(); } } public void dispose() { super.dispose(); disposeBindings(); } }