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.fetchspec; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.beans.BeansObservables; import org.eclipse.jface.databinding.swt.SWTObservables; 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.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Text; 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.EOFetchSpecification; import org.objectstyle.wolips.eomodeler.utils.BooleanUpdateValueStrategy; import org.objectstyle.wolips.eomodeler.utils.FormUtils; import org.objectstyle.wolips.eomodeler.utils.UglyFocusHackWorkaroundListener; public class EOFetchSpecOptionsEditorSection extends AbstractPropertySection { private EOFetchSpecification _fetchSpecification; private Text _fetchLimitText; private Button _promptsAfterFetchLimitButton; private Button _deepButton; private Button _usesDistinctButton; private Button _lockObjectsButton; private Button _refreshesRefetchedObjectsButton; private Button _requiresAllQualifierBindingVariablesButton; private DataBindingContext _bindingContext; public EOFetchSpecOptionsEditorSection() { // 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); getWidgetFactory().createCLabel(topForm, Messages.getString("EOFetchSpecification." + EOFetchSpecification.FETCH_LIMIT), SWT.NONE); _fetchLimitText = new Text(topForm, SWT.BORDER); GridData fetchLimitLayoutData = new GridData(GridData.FILL_HORIZONTAL); _fetchLimitText.setLayoutData(fetchLimitLayoutData); UglyFocusHackWorkaroundListener.addListener(_fetchLimitText); getWidgetFactory().createCLabel(topForm, "", SWT.NONE); _promptsAfterFetchLimitButton = new Button(topForm, SWT.CHECK); _promptsAfterFetchLimitButton.setText( Messages.getString("EOFetchSpecification." + EOFetchSpecification.PROMPTS_AFTER_FETCH_LIMIT)); getWidgetFactory().createCLabel(topForm, "", SWT.NONE); _deepButton = new Button(topForm, SWT.CHECK); _deepButton.setText(Messages.getString("EOFetchSpecification." + EOFetchSpecification.DEEP)); getWidgetFactory().createCLabel(topForm, "", SWT.NONE); _usesDistinctButton = new Button(topForm, SWT.CHECK); _usesDistinctButton .setText(Messages.getString("EOFetchSpecification." + EOFetchSpecification.USES_DISTINCT)); getWidgetFactory().createCLabel(topForm, "", SWT.NONE); _lockObjectsButton = new Button(topForm, SWT.CHECK); _lockObjectsButton .setText(Messages.getString("EOFetchSpecification." + EOFetchSpecification.LOCKS_OBJECTS)); getWidgetFactory().createCLabel(topForm, "", SWT.NONE); _refreshesRefetchedObjectsButton = new Button(topForm, SWT.CHECK); _refreshesRefetchedObjectsButton.setText( Messages.getString("EOFetchSpecification." + EOFetchSpecification.REFRESHES_REFETCHED_OBJECTS)); getWidgetFactory().createCLabel(topForm, "", SWT.NONE); _requiresAllQualifierBindingVariablesButton = new Button(topForm, SWT.CHECK); _requiresAllQualifierBindingVariablesButton.setText(Messages.getString( "EOFetchSpecification." + EOFetchSpecification.REQUIRES_ALL_QUALIFIER_BINDING_VARIABLES)); } public void setInput(IWorkbenchPart part, ISelection selection) { if (ComparisonUtils.equals(selection, getSelection())) { return; } super.setInput(part, selection); disposeBindings(); Object selectedObject = ((IStructuredSelection) selection).getFirstElement(); _fetchSpecification = (EOFetchSpecification) selectedObject; if (_fetchSpecification != null) { _bindingContext = new DataBindingContext(); _bindingContext.bindValue(SWTObservables.observeText(_fetchLimitText, SWT.Modify), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.FETCH_LIMIT), null, null); // new BindSpec(null, null, new RegexStringValidator("^[0-9]*$", // "^[0-9]+$", "Please enter a number"), null)); _bindingContext.bindValue(SWTObservables.observeSelection(_promptsAfterFetchLimitButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.PROMPTS_AFTER_FETCH_LIMIT), null, new BooleanUpdateValueStrategy()); _bindingContext.bindValue(SWTObservables.observeSelection(_deepButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.DEEP), null, new BooleanUpdateValueStrategy()); _bindingContext.bindValue(SWTObservables.observeSelection(_usesDistinctButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.USES_DISTINCT), null, new BooleanUpdateValueStrategy()); _bindingContext.bindValue(SWTObservables.observeSelection(_lockObjectsButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.LOCKS_OBJECTS), null, new BooleanUpdateValueStrategy()); _bindingContext.bindValue(SWTObservables.observeSelection(_refreshesRefetchedObjectsButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.REFRESHES_REFETCHED_OBJECTS), null, new BooleanUpdateValueStrategy()); _bindingContext.bindValue(SWTObservables.observeSelection(_requiresAllQualifierBindingVariablesButton), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.REQUIRES_ALL_QUALIFIER_BINDING_VARIABLES), null, new BooleanUpdateValueStrategy()); } } protected void disposeBindings() { if (_bindingContext != null) { _bindingContext.dispose(); } } public void dispose() { super.dispose(); disposeBindings(); } }