Java tutorial
/************************************************************************************* * Copyright (c) 2014 Red Hat, Inc. and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * JBoss by Red Hat - Initial implementation. ************************************************************************************/ package org.switchyard.tools.ui.editor.components.camel.sap; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.UpdateValueStrategy; import org.eclipse.core.databinding.observable.Realm; import org.eclipse.core.databinding.observable.value.WritableValue; import org.eclipse.core.runtime.Status; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain; import org.eclipse.emf.edit.domain.EditingDomain; import org.eclipse.jface.databinding.fieldassist.ControlDecorationSupport; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.soa.sca.sca1_1.model.sca.Binding; import org.eclipse.soa.sca.sca1_1.model.sca.Reference; import org.eclipse.soa.sca.sca1_1.model.sca.ScaPackage; import org.eclipse.soa.sca.sca1_1.model.sca.Service; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.forms.widgets.FormToolkit; import org.switchyard.tools.models.switchyard1_0.camel.sap.CamelSapBindingType; import org.switchyard.tools.models.switchyard1_0.camel.sap.SapPackage; import org.switchyard.tools.models.switchyard1_0.camel.sql.CamelSqlBindingType; import org.switchyard.tools.ui.editor.Messages; import org.switchyard.tools.ui.editor.databinding.EMFUpdateValueStrategyNullForEmptyString; import org.switchyard.tools.ui.editor.databinding.ObservablesUtil; import org.switchyard.tools.ui.editor.databinding.SWTValueUpdater; import org.switchyard.tools.ui.editor.databinding.StringEmptyValidator; import org.switchyard.tools.ui.editor.diagram.binding.AbstractSYBindingComposite; /** * @author bfitzpat * */ public class CamelSAPComposite extends AbstractSYBindingComposite { private Composite _panel; private CamelSapBindingType _binding = null; private Text _nameText; private Text _serverText; private Text _destinationText; private Text _rfcNameText; private Button _transactedCheckbox; private WritableValue _bindingValue; CamelSAPComposite(FormToolkit toolkit) { super(toolkit); } @Override public String getTitle() { return Messages.title_sqlBindingDetails; } @Override public String getDescription() { return Messages.description_sqlBindingDetails; } @Override public void setBinding(Binding impl) { super.setBinding(impl); if (impl instanceof CamelSapBindingType) { this._binding = (CamelSapBindingType) impl; _bindingValue.setValue(_binding); } else { _bindingValue.setValue(null); } } @Override public void setTargetObject(EObject target) { super.setTargetObject(target); } @Override public void createContents(Composite parent, int style, DataBindingContext context) { _panel = new Composite(parent, style); _panel.setLayout(new FillLayout()); getSAPTabControl(_panel); bindControls(context); } private Control getSAPTabControl(Composite tabFolder) { Composite composite = new Composite(tabFolder, SWT.NONE); GridLayout gl = new GridLayout(2, false); composite.setLayout(gl); _nameText = createLabelAndText(composite, Messages.label_name); if (getTargetObject() instanceof Service) { _serverText = createLabelAndText(composite, Messages.CamelSAPComposite_Server_name_label); } else if (getTargetObject() instanceof Reference) { _destinationText = createLabelAndText(composite, Messages.CamelSAPComposite_Destination_name_label); } _rfcNameText = createLabelAndText(composite, Messages.CamelSAPComposite_RFC_name_label); _transactedCheckbox = createCheckbox(composite, Messages.CamelSAPComposite_Transacted_checkbox_label); return composite; } @Override public Composite getPanel() { return this._panel; } protected void handleModify(final Control control) { setHasChanged(false); setDidSomething(true); } protected void handleUndo(Control control) { if (_binding != null) { super.handleUndo(control); } } private void bindControls(final DataBindingContext context) { final EditingDomain domain = AdapterFactoryEditingDomain.getEditingDomainFor(getTargetObject()); final Realm realm = SWTObservables.getRealm(_nameText.getDisplay()); _bindingValue = new WritableValue(realm, null, CamelSqlBindingType.class); org.eclipse.core.databinding.Binding binding = context.bindValue( SWTObservables.observeText(_nameText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, ScaPackage.eINSTANCE.getBinding_Name()), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator(new StringEmptyValidator( Messages.CamelSAPComposite_Binding_name_empty_warning, Status.WARNING)), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); /* * we also want to bind the name field to the binding name. note that * the model to target updater is configured to NEVER update. we want * the camel binding name to be the definitive source for this field. */ binding = context.bindValue(SWTObservables.observeText(_nameText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, ScaPackage.eINSTANCE.getBinding_Name()), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator(new StringEmptyValidator( Messages.CamelSAPComposite_Binding_name_empty_warning, Status.WARNING)), new UpdateValueStrategy(UpdateValueStrategy.POLICY_NEVER)); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); if (_serverText != null && !_serverText.isDisposed()) { binding = context.bindValue(SWTObservables.observeText(_serverText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, SapPackage.Literals.CAMEL_SAP_BINDING_TYPE__SERVER), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator( new StringEmptyValidator(Messages.CamelSAPComposite_Server_name_empty_error)), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); } if (_destinationText != null && !_destinationText.isDisposed()) { binding = context.bindValue(SWTObservables.observeText(_destinationText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, SapPackage.Literals.CAMEL_SAP_BINDING_TYPE__DESTINATION), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator(new StringEmptyValidator( Messages.CamelSAPComposite_Destination_name_empty_error)), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); } binding = context.bindValue(SWTObservables.observeText(_rfcNameText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, SapPackage.Literals.CAMEL_SAP_BINDING_TYPE__RFC_NAME), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator( new StringEmptyValidator(Messages.CamelSAPComposite_RFC_name_empty_error)), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeSelection(_transactedCheckbox), ObservablesUtil.observeDetailValue(domain, _bindingValue, SapPackage.Literals.CAMEL_SAP_BINDING_TYPE__TRANSACTED), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); } /* (non-Javadoc) * @see org.switchyard.tools.ui.editor.diagram.shared.AbstractSwitchyardComposite#dispose() */ @Override public void dispose() { _bindingValue.dispose(); super.dispose(); } }