Package javax.faces.component

Examples of javax.faces.component.ValueHolder

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    }
    if (!(component instanceof ValueHolder)) {
      // TODO Message resource i18n
      throw new JspException("Component "+ component.getClass().getName() + " is not instanceof ValueHolder");
    }
    ValueHolder valueHolder = (ValueHolder) component;

    Converter converter = null;

    if (binding != null && UIComponentTag.isValueReference(binding)) {
      ValueBinding valueBinding = ComponentUtil.createValueBinding(binding);
      if (valueBinding != null) {
        Object obj = valueBinding.getValue(FacesContext.getCurrentInstance());
        if (obj != null && obj instanceof Converter) {
          converter = (Converter) obj;
        }
      }
    }

    if (converter == null && converterId != null) {
      String localConverterId;
      // evaluate any VB expression that we were passed
      if (UIComponentTag.isValueReference(converterId)) {
        ValueBinding typeValueBinding = ComponentUtil.createValueBinding(converterId);
        localConverterId = (String) typeValueBinding.getValue(FacesContext.getCurrentInstance());
      } else {
        localConverterId = converterId;
      }
      converter = FacesContext.getCurrentInstance().getApplication().createConverter(localConverterId);
      if (converter != null && binding != null) {
        ComponentUtil.setValueForValueBinding(binding, converter);
      }
    }
    if (converter != null) {
      if (UIComponentTag.isValueReference(binding)) {
        component.setValueBinding(ATTR_CONVERTER, ComponentUtil.createValueBinding(binding));
      } else {
        valueHolder.setConverter(converter);
      }
    }
    // TODO else LOG.warn?
    return (SKIP_BODY);
  }
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    }
    return onclick;
  }

  private String appendConfirmationScript(String onclick, UIComponent component) {
    ValueHolder confirmation = (ValueHolder) component.getFacet(Facets.CONFIRMATION);
    if (confirmation != null) {
      StringBuilder script = new StringBuilder("return confirm('");
      script.append(confirmation.getValue());
      script.append("')");
      if (onclick != null) {
        script.append(" && ");
        script.append(onclick);
      }
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      this.omit = Boolean.TRUE;
    }
  }

  private static String getConfirmation(final AbstractUICommandBase command) {
    final ValueHolder facet = (ValueHolder) command.getFacet(Facets.CONFIRMATION);
    return facet != null ? "" + facet.getValue() : null;
  }
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        // Retrieve the current FaceletContext from FacesContext object
        FaceletContext faceletContext = (FaceletContext) context.getAttributes().get(
                FaceletContext.FACELET_CONTEXT_KEY);
       
        // cast to a ValueHolder
        ValueHolder vh = (ValueHolder) parent;
        ValueExpression ve = null;
        Converter c = null;
        if (_delegate.getBinding() != null)
        {
            ve = _delegate.getBinding().getValueExpression(faceletContext, Converter.class);
            c = (Converter) ve.getValue(faceletContext);
        }
        if (c == null)
        {
            c = this.createConverter(faceletContext);
            if (ve != null)
            {
                ve.setValue(faceletContext, c);
            }
        }
        if (c == null)
        {
            throw new TagException(_delegate.getTag(), "No Converter was created");
        }
        _delegate.setAttributes(faceletContext, c);
        vh.setConverter(c);
        Object lv = vh.getLocalValue();
        FacesContext faces = faceletContext.getFacesContext();
        if (lv instanceof String)
        {
            vh.setValue(c.getAsObject(faces, parent, (String) lv));
        }
    }
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        // Retrieve the current FaceletContext from FacesContext object
        FaceletContext faceletContext = (FaceletContext) context.getAttributes().get(
                FaceletContext.FACELET_CONTEXT_KEY);
       
        // cast to a ValueHolder
        ValueHolder vh = (ValueHolder) parent;
        ValueExpression ve = null;
        Converter c = null;
        if (_delegate.getBinding() != null)
        {
            ve = _delegate.getBinding().getValueExpression(faceletContext, Converter.class);
            c = (Converter) ve.getValue(faceletContext);
        }
        if (c == null)
        {
            c = this.createConverter(faceletContext);
            if (ve != null)
            {
                ve.setValue(faceletContext, c);
            }
        }
        if (c == null)
        {
            throw new TagException(_delegate.getTag(), "No Converter was created");
        }
        _delegate.setAttributes(faceletContext, c);
        vh.setConverter(c);
        Object lv = vh.getLocalValue();
        FacesContext faces = faceletContext.getFacesContext();
        if (lv instanceof String)
        {
            vh.setValue(c.getAsObject(faces, parent, (String) lv));
        }
    }
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    }
    return onclick;
  }

  private String appendConfirmationScript(String onclick, UIComponent component) {
    ValueHolder confirmation = (ValueHolder) component.getFacet(FACET_CONFIRMATION);
    if (confirmation != null) {
      StringBuilder script = new StringBuilder();
      script.append("return confirm('");
      script.append(confirmation.getValue());
      script.append("')");
      if (onclick != null) {
        script.append(" && ");
        script.append(onclick);
      }
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        if (submittedValue != null) {
          return submittedValue.toString();
        }
      }

      ValueHolder valueHolder = (ValueHolder) component;
      Object value = valueHolder.getValue();
      if(value == null)
        return "";
     
      //first ask the converter
      if(valueHolder.getConverter() != null) {
        return valueHolder.getConverter().getAsString(facesContext, component, value);
      }
      //Try to guess
      else {
        ValueExpression expr = component.getValueExpression("value");
        if(expr != null) {
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   */
  public static String getStringValueToRender(FacesContext facesContext, UIComponent component, Object value) {
    if(value == null)
      return null;
   
    ValueHolder valueHolder = (ValueHolder) component;
   
    Converter converter = valueHolder.getConverter();
    if(converter != null) {
      return converter.getAsString(facesContext, component, value);
    }
    else {
      ValueExpression expr = component.getValueExpression("value");
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        if (submittedValue != null) {
          return submittedValue.toString();
        }
      }

      ValueHolder valueHolder = (ValueHolder) component;
      Object value = valueHolder.getValue();
      if(value == null)
        return "";

      //first ask the converter
      if(valueHolder.getConverter() != null) {
        return valueHolder.getConverter().getAsString(context, component, value);
      }
      //Try to guess
      else {
        ValueExpression expr = component.getValueExpression("value");
        if(expr != null) {
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            // PENDING i18n
            throw new JspException("Can't create class of type:"+
                    "javax.faces.convert.Converter for:"+converterError);
        }

        ValueHolder vh = (ValueHolder)component;
        FacesContext context = FacesContext.getCurrentInstance();
       
        // Register an instance with the appropriate component
        vh.setConverter(converter);
       
        // Once the converter has been set, attempt to convert the
        // incoming "value"
        Object localValue = vh.getLocalValue();
        if (localValue instanceof String) {
            try {
                localValue = converter.getAsObject(context, (UIComponent)vh, (String) localValue);
                vh.setValue(localValue);
            }
            catch (ConverterException ce) {
                // PENDING - Ignore?  Throw an exception?  Set the local
                // value back to "null" and log a warning?
            }
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