Examples of org.eclipse.core.databinding.UpdateValueStrategy

org.eclipse.core.databinding.UpdateValueStrategy
Customizes a {@link Binding} between two {@link IObservableValue observablevalues}. The following behaviors can be customized via the strategy:
- Validation
- Conversion
- Automatic processing
The update phases are:
1. Validate after get - {@link #validateAfterGet(Object)}
2. Conversion - {@link #convert(Object)}
3. Validate after conversion - {@link #validateAfterConvert(Object)}
4. Validate before set - {@link #validateBeforeSet(Object)}
5. Value set - {@link #doSet(IObservableValue,Object)}
Validation:
{@link IValidator Validators} validate the value at multiple phases in theupdate process. Statuses returned from validators are aggregated into a MultiStatus until a status of ERROR or CANCEL is encountered. Either of these statuses will abort the update process. These statuses are available as the {@link Binding#getValidationStatus() binding validation status}.

Conversion:
A {@link IConverter converter} will convert the value from the type of thesource observable into the type of the destination. The strategy has the ability to default converters for common scenarios.

Automatic processing:
The processing to perform when the source observable changes. This behavior is configured via policies provided on construction of the strategy (e.g. {@link #POLICY_NEVER}, {@link #POLICY_CONVERT}, {@link #POLICY_ON_REQUEST}, {@link #POLICY_UPDATE}).
@see DataBindingContext#bindValue(IObservableValue,IObservableValue,UpdateValueStrategy,UpdateValueStrategy) @see Binding#getValidationStatus() @see IValidator @see IConverter @since 1.0

    DataBindingContext bindingContext = super.initDataBindings();
    
    //
    IObservableValue observeSelectionTraceBtnObserveWidget = WidgetProperties.selection().observe(traceBtn);
    IObservableValue managedConnectionFactoryTraceObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__TRACE)).observe(destinationDataStoreEntry);
    UpdateValueStrategy traceStrategy = new UpdateValueStrategy();
    traceStrategy.setConverter(new Boolean2StringConverter());
    UpdateValueStrategy traceModelStrategy = new UpdateValueStrategy();
    traceModelStrategy.setConverter(new String2BooleanConverter());
    bindingContext.bindValue(observeSelectionTraceBtnObserveWidget, managedConnectionFactoryTraceObserveValue, traceStrategy, traceModelStrategy);
    //
    IObservableValue observeSelectionCpicTraceComboObserveWidget = WidgetProperties.singleSelectionIndex().observe(cpicTraceCombo);
    IObservableValue managedConnectionFactoryCpicTraceObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__CPIC_TRACE)).observe(destinationDataStoreEntry);
    UpdateValueStrategy strategy_4 = new UpdateValueStrategy();
    strategy_4.setConverter(new CpicTraceComboSelection2TraceLevelConverter());
    UpdateValueStrategy cpicTraceStrategy = new UpdateValueStrategy();
    cpicTraceStrategy.setConverter(new TraceLevel2CpicTraceComboSelectionConverter());
    bindingContext.bindValue(observeSelectionCpicTraceComboObserveWidget, managedConnectionFactoryCpicTraceObserveValue, strategy_4, cpicTraceStrategy);
    //
    IObservableValue observeSelectionLcheckBtnObserveWidget = WidgetProperties.selection().observe(lcheckBtn);
    IObservableValue managedConnectionFactoryLcheckObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__LCHECK)).observe(destinationDataStoreEntry);
    UpdateValueStrategy strategy_5 = new UpdateValueStrategy();
    strategy_5.setConverter(new Boolean2StringConverter());
    UpdateValueStrategy lcheckModelStrategy = new UpdateValueStrategy();
    lcheckModelStrategy.setConverter(new String2BooleanConverter());
    bindingContext.bindValue(observeSelectionLcheckBtnObserveWidget, managedConnectionFactoryLcheckObserveValue, strategy_5, lcheckModelStrategy);
    //
    IObservableValue observeTextCodepageTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(codepageText);
    IObservableValue managedConnectionFactoryCodepageObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__CODEPAGE)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextCodepageTextObserveWidget, managedConnectionFactoryCodepageObserveValue, null, null);
    //
    IObservableValue observeSelectionGetsso2BtnObserveWidget = WidgetProperties.selection().observe(getsso2Btn);
    IObservableValue managedConnectionFactoryGetsso2ObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__GETSSO2)).observe(destinationDataStoreEntry);
    UpdateValueStrategy strategy_6 = new UpdateValueStrategy();
    strategy_6.setConverter(new Boolean2StringConverter());
    UpdateValueStrategy getssoModelStrategy = new UpdateValueStrategy();
    getssoModelStrategy.setConverter(new String2BooleanConverter());
    bindingContext.bindValue(observeSelectionGetsso2BtnObserveWidget, managedConnectionFactoryGetsso2ObserveValue, strategy_6, getssoModelStrategy);
    //
    IObservableValue observeSelectionDenyInitialPasswordBtnObserveWidget = WidgetProperties.selection().observe(denyInitialPasswordBtn);
    IObservableValue managedConnectionFactoryDenyInitialPasswordObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__DENY_INITIAL_PASSWORD)).observe(destinationDataStoreEntry);
    UpdateValueStrategy strategy_7 = new UpdateValueStrategy();
    strategy_7.setConverter(new Boolean2StringConverter());
    UpdateValueStrategy denyInitialPasswordModelStrategy = new UpdateValueStrategy();
    denyInitialPasswordModelStrategy.setConverter(new String2BooleanConverter());
    bindingContext.bindValue(observeSelectionDenyInitialPasswordBtnObserveWidget, managedConnectionFactoryDenyInitialPasswordObserveValue, strategy_7, denyInitialPasswordModelStrategy);


    return bindingContext;
  }

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    DataBindingContext bindingContext = super.initDataBindings();
    
    //
    IObservableValue observeSelectionTraceBtnObserveWidget = WidgetProperties.selection().observe(traceBtn);
    IObservableValue managedConnectionFactoryTraceObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__TRACE)).observe(serverDataStoreEntry);
    UpdateValueStrategy traceStrategy = new UpdateValueStrategy();
    traceStrategy.setConverter(new Boolean2StringConverter());
    UpdateValueStrategy traceModelStrategy = new UpdateValueStrategy();
    traceModelStrategy.setConverter(new String2BooleanConverter());
    bindingContext.bindValue(observeSelectionTraceBtnObserveWidget, managedConnectionFactoryTraceObserveValue, traceStrategy, traceModelStrategy);
    //
    IObservableValue observeTextSapRouterTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(saprouterText);
    IObservableValue serverDataSapRouterObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__SAPROUTER)).observe(serverDataStoreEntry);
    UpdateValueStrategy sapRouterStrategy = new UpdateValueStrategy();
    sapRouterStrategy.setBeforeSetValidator(new SapRouterStringValidator());
    saprouterBinding = bindingContext.bindValue(observeTextSapRouterTextObserveWidget, serverDataSapRouterObserveValue, sapRouterStrategy, null);
    //
    IObservableValue observeTextWorkerThreadCountTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(workerThreadCountText);
    IObservableValue serverDataWorkerThreadCountObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__WORKER_THREAD_COUNT)).observe(serverDataStoreEntry);
    UpdateValueStrategy workerThreadCountStrategy = new UpdateValueStrategy();
    workerThreadCountStrategy.setBeforeSetValidator(new NonNegativeIntegerValidator(Messages.OptionalServerPropertySection_WorkerThreadCountValidator));
    workerThreadCountBinding = bindingContext.bindValue(observeTextWorkerThreadCountTextObserveWidget, serverDataWorkerThreadCountObserveValue, workerThreadCountStrategy, null);
    //
    IObservableValue observeTextWorkerThreadMinCountTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(workerThreadMinCountText);
    IObservableValue serverDataWorkerThreadMinCountObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__WORKER_THREAD_MIN_COUNT)).observe(serverDataStoreEntry);
    UpdateValueStrategy workerThreadMinCountStrategy = new UpdateValueStrategy();
    workerThreadMinCountStrategy.setBeforeSetValidator(new NonNegativeIntegerValidator(Messages.OptionalServerPropertySection_WorkerThreadMinCountValidator));
    workerThreadMinCountBinding = bindingContext.bindValue(observeTextWorkerThreadMinCountTextObserveWidget, serverDataWorkerThreadMinCountObserveValue, workerThreadMinCountStrategy, null);
    //
    IObservableValue observeTextMaxStartupDelayTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(maxStartupDelayText);
    IObservableValue serverDataMaxStartupDelayObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__MAX_START_UP_DELAY)).observe(serverDataStoreEntry);
    UpdateValueStrategy maxStartupDelayStrategy = new UpdateValueStrategy();
    maxStartupDelayStrategy.setBeforeSetValidator(new NonNegativeIntegerValidator(Messages.OptionalServerPropertySection_MaxStartupDelayValidator));
    maxStartupDelayBinding = bindingContext.bindValue(observeTextMaxStartupDelayTextObserveWidget, serverDataMaxStartupDelayObserveValue, maxStartupDelayStrategy, null);
    //
    IObservableValue observeRepositoryMapTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(repositoryMapText);
    IObservableValue serverRepositoryMapObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__REPOSITORY_MAP)).observe(serverDataStoreEntry);
    bindingContext.bindValue(observeRepositoryMapTextObserveWidget, serverRepositoryMapObserveValue, null, null);

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    DataBindingContext bindingContext = super.initDataBindings();
    
    //
    IObservableValue observeSelectionSncModeBtnObserveWidget = WidgetProperties.selection().observe(sncModeBtn);
    IObservableValue managedConnectionFactorySncModeObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__SNC_MODE)).observe(serverDataStoreEntry);
    UpdateValueStrategy strategy_13 = new UpdateValueStrategy();
    strategy_13.setConverter(new Boolean2StringConverter());
    UpdateValueStrategy sncModeModelStrategy = new UpdateValueStrategy();
    sncModeModelStrategy.setConverter(new String2BooleanConverter());
    bindingContext.bindValue(observeSelectionSncModeBtnObserveWidget, managedConnectionFactorySncModeObserveValue, strategy_13, sncModeModelStrategy);
    //
    IObservableValue observeSingleSelectionIndexSncQopComboObserveWidget = WidgetProperties.singleSelectionIndex().observe(sncQopCombo);
    IObservableValue managedConnectionFactorySncQopObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__SNC_QOP)).observe(serverDataStoreEntry);
    UpdateValueStrategy sncQopStategy = new UpdateValueStrategy();
    sncQopStategy.setConverter(new SncQosComboSelection2SncQosConverter());
    UpdateValueStrategy sncQopModelStrategy = new UpdateValueStrategy();
    sncQopModelStrategy.setConverter(new SncQos2SncQosComboSelectionConverter());
    bindingContext.bindValue(observeSingleSelectionIndexSncQopComboObserveWidget, managedConnectionFactorySncQopObserveValue, sncQopStategy, sncQopModelStrategy);
    //
    IObservableValue observeTextSncMynameTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(sncMynameText);
    IObservableValue managedConnectionFactorySncMynameObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__SNC_MYNAME)).observe(serverDataStoreEntry);
    bindingContext.bindValue(observeTextSncMynameTextObserveWidget, managedConnectionFactorySncMynameObserveValue, null, null);

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    IObservableValue managedConnectionFactoryAuthTypeObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__AUTH_TYPE)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextAuthTypeComboObserveWidget, managedConnectionFactoryAuthTypeObserveValue, null, null);
    //
    IObservableValue observeTextClientText2ObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(clientText2);
    IObservableValue managedConnectionFactoryClientObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__CLIENT)).observe(destinationDataStoreEntry);
    UpdateValueStrategy clientStrategy2 = new UpdateValueStrategy();
    clientStrategy2.setBeforeSetValidator(new ClientNumberValidator());
    clientBinding2 = bindingContext.bindValue(observeTextClientText2ObserveWidget, managedConnectionFactoryClientObserveValue, clientStrategy2, null);
    //
    IObservableValue observeTextUserText2ObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(userText2);
    IObservableValue managedConnectionFactoryUserObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__USER)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextUserText2ObserveWidget, managedConnectionFactoryUserObserveValue, null, null);
    //
    IObservableValue observeTextUserAliasObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(userAlias);
    IObservableValue managedConnectionFactoryAliasUserObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__ALIAS_USER)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextUserAliasObserveWidget, managedConnectionFactoryAliasUserObserveValue, null, null);
    //
    IObservableValue observeTextPasswordText2ObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(passwordText2);
    IObservableValue managedConnectionFactoryPasswordObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__PASSWORD)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextPasswordText2ObserveWidget, managedConnectionFactoryPasswordObserveValue, null, null);
    //
    IObservableValue observeTextMysapsso2TextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(mysapsso2Text);
    IObservableValue managedConnectionFactoryMysapsso2ObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__MYSAPSSO2)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextMysapsso2TextObserveWidget, managedConnectionFactoryMysapsso2ObserveValue, null, null);
    //
    IObservableValue observeTextX509certTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(x509certText);
    IObservableValue managedConnectionFactoryX509certObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__X509CERT)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextX509certTextObserveWidget, managedConnectionFactoryX509certObserveValue, null, null);
    //
    IObservableValue observeTextLanguageText2ObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(languageText2);
    IObservableValue managedConnectionFactoryLangObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__LANG)).observe(destinationDataStoreEntry);
    UpdateValueStrategy strategy_3 = new UpdateValueStrategy();
    strategy_3.setBeforeSetValidator(new LanguageValidator());
    langBinding2 = bindingContext.bindValue(observeTextLanguageText2ObserveWidget, managedConnectionFactoryLangObserveValue, strategy_3, null);


    clientDecorator = ControlDecorationSupport.create(clientBinding2, SWT.TOP | SWT.LEFT);
    langDecorator = ControlDecorationSupport.create(langBinding2, SWT.TOP | SWT.LEFT);

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    IObservableValue destinationAshostObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__ASHOST)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextAshostTextObserveWidget, destinationAshostObserveValue, null, null);
    //
    IObservableValue observeTextSysnrTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(sysnrText);
    IObservableValue destinationSysnrObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__SYSNR)).observe(destinationDataStoreEntry);
    UpdateValueStrategy strategy_1 = new UpdateValueStrategy();
    strategy_1.setBeforeSetValidator(new SystemNumberValidator());
    sysnrBinding = bindingContext.bindValue(observeTextSysnrTextObserveWidget, destinationSysnrObserveValue, strategy_1, null);
    //
    IObservableValue observeTextClientTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(clientText);
    IObservableValue destinationClientObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__CLIENT)).observe(destinationDataStoreEntry);
    UpdateValueStrategy strategy = new UpdateValueStrategy();
    strategy.setBeforeSetValidator(new ClientNumberValidator());
    clientBinding = bindingContext.bindValue(observeTextClientTextObserveWidget, destinationClientObserveValue, strategy, null);
    //
    IObservableValue observeTextUserTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(userText);
    IObservableValue destinationUserNameObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__USER_NAME)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextUserTextObserveWidget, destinationUserNameObserveValue, null, null);
    //
    IObservableValue observeTextPasswordTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(passwordText);
    IObservableValue destinationPasswordObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__PASSWORD)).observe(destinationDataStoreEntry);
    bindingContext.bindValue(observeTextPasswordTextObserveWidget, destinationPasswordObserveValue, null, null);
    //
    IObservableValue observeTextLanguageTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(languageText);
    IObservableValue destinationLangObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.DESTINATION_DATA_STORE_ENTRY__VALUE, Literals.DESTINATION_DATA__LANG)).observe(destinationDataStoreEntry);
    UpdateValueStrategy langStrategy = new UpdateValueStrategy();
    langStrategy.setBeforeSetValidator(new LanguageValidator());
    langBinding = bindingContext.bindValue(observeTextLanguageTextObserveWidget, destinationLangObserveValue, langStrategy, null);
    
    sysnrDecorator = ControlDecorationSupport.create(sysnrBinding, SWT.TOP | SWT.LEFT);
    clientDecorator = ControlDecorationSupport.create(clientBinding, SWT.TOP | SWT.LEFT);
    langDecorator = ControlDecorationSupport.create(langBinding, SWT.TOP | SWT.LEFT);

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    IObservableValue serverRepositoryDestinationObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__REPOSITORY_DESTINATION)).observe(serverDataStoreEntry);
    bindingContext.bindValue(observeRepositoryDestinationTextObserveWidget, serverRepositoryDestinationObserveValue, null, null);
    //
    IObservableValue observeTextLanguageTextObserveWidget = WidgetProperties.text(SWT.FocusOut).observe(connectionCountText);
    IObservableValue destinationLangObserveValue = EMFEditProperties.value(editingDomain, FeaturePath.fromList(Literals.SERVER_DATA_STORE_ENTRY__VALUE, Literals.SERVER_DATA__CONNECTION_COUNT)).observe(serverDataStoreEntry);
    UpdateValueStrategy connectionCountStrategy = new UpdateValueStrategy();
    connectionCountStrategy.setBeforeSetValidator(new NonNegativeIntegerValidator(Messages.MandatoryServerPropertySection_ConnectionCountValidator));
    connectionCountBinding = bindingContext.bindValue(observeTextLanguageTextObserveWidget, destinationLangObserveValue, connectionCountStrategy, null);
    
    connectionCountDecorator = ControlDecorationSupport.create(connectionCountBinding, SWT.TOP | SWT.LEFT);
    
    return bindingContext;

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  public static void bindPojoProperty(DataBindingContext dataBindingContext, final IMessageManager mmng, Object bean,
      final String propertyName, boolean mandatory, final String labelText, IObservableValue value,
      final Control control) {
    IObservableValue modelValue = PojoProperties.value(propertyName).observe(bean);


    UpdateValueStrategy targetToModel = new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE);
    UpdateValueStrategy modelToTarget = new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE);


    if (mandatory) {
      targetToModel.setBeforeSetValidator(new MandatoryValidator(labelText));
      modelToTarget.setBeforeSetValidator(new MandatoryValidator(labelText));
    }


    Binding bindValue = dataBindingContext.bindValue(value, modelValue, targetToModel, modelToTarget);


    final IObservableValue validationStatus = bindValue.getValidationStatus();

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  public static void bindBeanProperty(DataBindingContext dataBindingContext, final IMessageManager mmng,
      Object bean, final String propertyName, IValidator validator, IObservableValue value, final Control control) {
    IObservableValue modelValue = BeanProperties.value(propertyName).observe(bean);


    UpdateValueStrategy targetToModel = new TrimmingUpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE);
    //UpdateValueStrategy modelToTarget = new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE);
    UpdateValueStrategy modelToTarget = new TrimmingUpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE);


    if (validator != null) {
      targetToModel.setBeforeSetValidator(validator);
      modelToTarget.setBeforeSetValidator(validator);
    }


    Binding bindValue = dataBindingContext.bindValue(value, modelValue, targetToModel, modelToTarget);


    final IObservableValue validationStatus = bindValue.getValidationStatus();

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  public static void bindMultipleSelection(DataBindingContext dataBindingContext, IMessageManager mmgr, IObservableList modelList, StructuredViewer profilesViewer,
      String propertyName, String labelText) {
    IViewerObservableList observe = ViewerProperties.multipleSelection().observe(profilesViewer);


    UpdateValueStrategy targetToModel = new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE);
    UpdateValueStrategy modelToTarget = new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE);


    targetToModel.setBeforeSetValidator(new MandatoryValidator(labelText));
    modelToTarget.setBeforeSetValidator(new MandatoryValidator(labelText));


    Binding bindValue = dataBindingContext.bindList(observe, modelList);


    final IObservableValue validationStatus = bindValue.getValidationStatus();
    validationStatus.addChangeListener(new MessageChangeListener(validationStatus, profilesViewer.getControl(),

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      }
    };
    
    


    UpdateValueStrategy targetToModel = new UpdateValueStrategy(false,  UpdateValueStrategy.POLICY_UPDATE);
    targetToModel.setAfterGetValidator(optionalNumbersOnlyValidator);
    targetToModel.setBeforeSetValidator(instancesValidator);
    targetToModel.setConverter(new IConverter() {
      @Override
      public Object getToType() {
        return new BigInteger("-1");
      }
      
      @Override
      public Object getFromType() {
        return new String();
      }
      
      @Override
      public Object convert(Object fromObject) {
        if (fromObject instanceof String) {
          String s = (String)fromObject;
          if (s.trim().length() > 0) {
            try {
              return new BigInteger(s);
            } catch (NumberFormatException ex) {
              // no number
            }
          }
        }
        return null;
      }
    });
    
    UpdateValueStrategy modelToTarget = new UpdateValueStrategy();
    
    minInstancesBinding = ctx.bindValue(minInstancesTextObservable, minInstancesModelObservable, targetToModel, modelToTarget);
    ControlDecorationSupport.create(minInstancesBinding, SWT.TOP | SWT.RIGHT);
    
    maxInstancesBinding = ctx.bindValue(maxInstancesTextObservable, maxInstancesModelObservable, targetToModel, modelToTarget);

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