Examples of org.jboss.errai.databinding.client.api.DataBinder

Package org.jboss.errai.databinding.client.api

Examples of org.jboss.errai.databinding.client.api.DataBinder

org.jboss.errai.databinding.client.api.DataBinder
Provides an API to programmatically bind properties of a data model instance (any POJO annotated with {@link Bindable}) to UI fields/widgets. The properties of the model and the UI components will automatically be kept in sync for as long as they are bound. @author Christian Sadilek

  public Binding bind(final Widget widget, final String property, final Converter converter) {
    validatePropertyExpr(property);


    int dotPos = property.indexOf(".");
    if (dotPos > 0) {
      DataBinder nested = createNestedBinder(property);
      nested.bind(widget, property.substring(dotPos + 1), converter);
      Binding binding = new Binding(property, widget, converter, null);
      bindings.put(property, binding);
      return binding;
    }

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    validatePropertyExpr(property);


    int dotPos = property.indexOf(".");
    if (dotPos > 0) {
      String bindableProperty = property.substring(0, dotPos);
      DataBinder binder = binders.get(bindableProperty);
      if (binder != null) {
        binder.unbind(property.substring(dotPos + 1));
      }
    }
    binding.removeHandler();
    bindings.remove(property, binding);

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      Object actualValue = proxy.get(property);


      if ((knownValue == null && actualValue != null) ||
          (knownValue != null && !knownValue.equals(actualValue))) {


        DataBinder nestedBinder = binders.get(property);
        if (nestedBinder != null) {
          nestedBinder.setModel(actualValue, InitialState.FROM_MODEL);
          proxy.set(property, nestedBinder.getModel());
        }
        updateWidgetsAndFireEvent(property, knownValue, actualValue);
      }
    }
  }

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  public <P> void addPropertyChangeHandler(String property, PropertyChangeHandler<P> handler) {
    validatePropertyExpr(property);


    int dotPos = property.indexOf(".");
    if (dotPos > 0) {
      DataBinder nested = createNestedBinder(property);
      nested.addPropertyChangeHandler(property.substring(dotPos + 1), handler);
    }
    else if (property.equals("*")) {
      propertyChangeHandlerSupport.addPropertyChangeHandler(handler);
    }
    else if (property.equals("**")) {
      for (DataBinder nested : binders.values()) {
        nested.addPropertyChangeHandler(property, handler);
      }
      propertyChangeHandlerSupport.addPropertyChangeHandler(handler);
    }


    propertyChangeHandlerSupport.addPropertyChangeHandler(property, handler);

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    validatePropertyExpr(property);


    int dotPos = property.indexOf(".");
    if (dotPos > 0) {
      String bindableProperty = property.substring(0, dotPos);
      DataBinder nested = binders.get(bindableProperty);
      if (nested != null) {
        nested.removePropertyChangeHandler(property.substring(dotPos + 1), handler);
      }
    }
    else if (property.equals("*")) {
      propertyChangeHandlerSupport.removePropertyChangeHandler(handler);
    }
    else if (property.equals("**")) {
      for (DataBinder nested : binders.values()) {
        nested.removePropertyChangeHandler(property, handler);
      }
      propertyChangeHandlerSupport.removePropertyChangeHandler(handler);
    }


    propertyChangeHandlerSupport.removePropertyChangeHandler(property, handler);

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    validatePropertyExpr(property);


    int dotPos = property.indexOf(".");
    if (dotPos > 0) {
      String bindableProperty = property.substring(0, dotPos);
      DataBinder binder = binders.get(bindableProperty);
      if (binder != null) {
        binder.unbind(property.substring(dotPos + 1));
        return;
      }
    }


    knownValues.remove(property);

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    validatePropertyExpr(property);


    int dotPos = property.indexOf(".");
    if (dotPos > 0) {
      String bindableProperty = property.substring(0, dotPos);
      DataBinder binder = binders.get(bindableProperty);
      if (binder != null) {
        binder.unbind(property.substring(dotPos + 1));
      }
    }


    bindings.remove(property);
    converters.remove(property);

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      Object actualValue = proxy.get(property);
      
      if ((knownValue == null && actualValue != null) ||
          (knownValue != null && !knownValue.equals(actualValue))) {


        DataBinder nestedBinder = binders.get(property);
        if (nestedBinder != null) {
          nestedBinder.setModel(actualValue, InitialState.FROM_MODEL);
          proxy.set(property, nestedBinder.getModel());
        }
        updateWidgetAndFireEvent(property, knownValue, actualValue);
      }
    }
  }

View Full Code Here

  public Binding bind(final Widget widget, final String property, final Converter converter) {
    validatePropertyExpr(property);


    int dotPos = property.indexOf(".");
    if (dotPos > 0) {
      DataBinder nested = createNestedBinder(property);
      nested.bind(widget, property.substring(dotPos + 1), converter);
      Binding binding = new Binding(property, widget, converter, null);
      bindings.put(property, binding);
      return binding;
    }

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    validatePropertyExpr(property);


    int dotPos = property.indexOf(".");
    if (dotPos > 0) {
      String bindableProperty = property.substring(0, dotPos);
      DataBinder binder = binders.get(bindableProperty);
      if (binder != null) {
        binder.unbind(property.substring(dotPos + 1));
      }
    }
    binding.removeHandler();
    bindings.remove(property, binding);

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Related Classes of org.jboss.errai.databinding.client.api.DataBinder

org.jboss.errai.databinding.client.BindableProxyAgent

org.jboss.errai.databinding.client.Binding

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