Examples of javax.faces.webapp.UIComponentClassicTagBase

javax.faces.webapp.UIComponentClassicTagBase
UIComponentTagBase is the base class for all JSP tags that use the "classic" JSP tag interface that correspond to a {@link javax.faces.component.UIComponent} instance inthe view. In Faces 1.2, all component tags are BodyTag instances to allow for the execution of the page to build the component tree, but not render it. Rendering happens only after the component tree is completely built.

{@link UIComponentTag} extendsUIComponentClassicTagBase to add support for properties that conform to the Faces 1.1 EL.

{@link UIComponentELTag} extendsUIComponentClassicTagBase class to add support for properties that conform to the EL API.

The default implementation allows the proper interweaving of template text, non-Faces JSP tag output, and Faces component tag output in the same page, as expected by the page author.

The CASE markers in the following example will be cited in the method descriptions of this class.
- CASE 1 describes template text and/or non-component custom tag output occurring as the child of a component tag, but before the first component tag child of that component tag.
- CASE 2 describes template text and/or non-component custom tag output occurring between two sibling component tags.
- CASE 3 describes template text and/or non-component custom tag output occurring as the child content of an <f:verbatim> tag at any point in the page.
- CASE 4 describes template text and/or non-component custom tag output occurring between the last child component tag and its enclosing parent component tag's end tag.
<h:panelGrid style="color:red" border="4" columns="2"> CASE 1 <h:outputText value="component 1"/> CASE 2 <h:outputText value="component 2"/> <f:verbatim>CASE 3</f:verbatim> <c:out value="${pageScope.CASE4}" /> </h:panelGrid>
The preceding arrangement of faces component tags, must yield markup that will render identically to the following (assuming that ${pageScope.CASE4} evaluates to "CASE 4" without the quotes).
<table border="4" style="color:red"> <tbody> <tr><td>CASE 1</td></tr> <tr><td>component 1</td></tr> <tr><td>CASE 2</td> <tr><td>component 2</td></tr> <tr><td>CASE 3</td> <td>CASE 4</td></tr> </tbody> </table>

  }


  @Override
  public int doStartTag() throws JspException
  {
    UIComponentClassicTagBase tag =
      UIComponentClassicTagBase.getParentUIComponentClassicTagBase(pageContext);
    if (tag == null)
    {
      throw new JspException(_LOG.getMessage(
        "RETURNACTIONLISTENER_MUST_INSIDE_UICOMPONENT_TAG"));
    }


    // Only run on the first time the tag executes
    if (!tag.getCreated())
      return SKIP_BODY;


    UIComponent component = tag.getComponentInstance();
    if (!(component instanceof ActionSource))
    {
      throw new JspException(_LOG.getMessage(
        "RETURNACTIONLISTENER_MUST_INSIDE_UICOMPONENT_TAG"));
    }

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        if (_property == null) throw new JspException("property attribute not set");
        if (_value == null) throw new JspException("value attribute not set");
        if (_property.isLiteralText()) throw new JspException("property attribute is no valid value reference: " + _property);


        //Find parent UIComponentTag
        UIComponentClassicTagBase componentELTag = UIComponentClassicTagBase.getParentUIComponentClassicTagBase(pageContext);
        if (componentELTag == null){        
            UIComponentTag componentTag = UIComponentTag.getParentUIComponentTag(pageContext);
            if (componentTag == null)
            {
                throw new JspException("UpdateActionListenerTag has no UIComponentTag ancestor");
            }
        }


        if (componentELTag.getCreated())
        {
            //Component was just created, so we add the Listener
            UIComponent component = componentELTag.getComponentInstance();
            if (component instanceof ActionSource)
            {
                FacesContext facesContext = FacesContext.getCurrentInstance();
                Application application = facesContext.getApplication();
                UpdateActionListener al = new UpdateActionListener();

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     * @throws JspException if a JSP error occurs
     */
    public int doStartTag() throws JspException {


        // Locate our parent UIComponentTag
        UIComponentClassicTagBase tag =
             UIComponentClassicTagBase.getParentUIComponentClassicTagBase(pageContext);
        if (tag == null) {
            Object params[] = {this.getClass().getName()};
            throw new JspException(
                 MessageUtils.getExceptionMessageString(
                      MessageUtils.NOT_NESTED_IN_FACES_TAG_ERROR_MESSAGE_ID, params));
        }


        // Nothing to do unless this tag created a component
        if (!tag.getCreated()) {
            return (SKIP_BODY);
        }


        UIComponent component = tag.getComponentInstance();
        if (component == null) {
            throw new JspException(
                 MessageUtils.getExceptionMessageString(MessageUtils.NULL_COMPONENT_ERROR_MESSAGE_ID));
        }
        if (!(component instanceof ActionSource)) {

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     * @throws JspException if a JSP error occurs
     */
    public int doStartTag() throws JspException {


        // Locate our parent UIComponentTag
        UIComponentClassicTagBase tag =
             UIComponentClassicTagBase.getParentUIComponentClassicTagBase(pageContext);
        if (tag == null) {
            //  Object[] params = {this.getClass().getName()};
            // PENDING(rogerk): do something with params
            throw new JspException(
                 MessageUtils.getExceptionMessageString(
                      MessageUtils.NOT_NESTED_IN_FACES_TAG_ERROR_MESSAGE_ID));
        }


        // Nothing to do unless this tag created a component
        if (!tag.getCreated()) {
            return (SKIP_BODY);
        }


        UIComponent component = tag.getComponentInstance();
        if (component == null) {
            throw new JspException(
                 MessageUtils.getExceptionMessageString(MessageUtils.NULL_COMPONENT_ERROR_MESSAGE_ID));
        }
        if (!(component instanceof EditableValueHolder)) {

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              .isOptionEnabled
                    (BooleanWebContextInitParameter.EnableLoadBundle11Compatibility)) {
            // the UIComponent that wraps the Map
            UIComponent bundleComponent =
                  createNewLoadBundleComponent(var, toStore);
            UIComponentClassicTagBase parentTag = getParentUIComponentTag();


            // Is this loadBundle tag instance outside of <f:view>?
            if (null == parentTag) {
                // Yes.  Store the bundleComponent in a list so the <f:view> tag
                // can add the list contents as the first children.

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        Tag parent = this.getParent();
        while (null != parent && 
                (!(parent instanceof UIComponentClassicTagBase))) {
            parent = this.getParent();
        }
        UIComponentClassicTagBase result = (UIComponentClassicTagBase) parent;
        
        // Check for case where the <f:loadBundle> is inside of an included page,
        // but outside of the <f:subview> for that page.  This can happen
        // either when the <f:subview> is in the includING page *OR* when
        // the <f:subview> is in the includED page, yet the <f:loadBundle> is

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              .isOptionEnabled
                    (BooleanWebContextInitParameter.EnableLoadBundle11Compatibility)) {
            // the UIComponent that wraps the Map
            UIComponent bundleComponent =
                  createNewLoadBundleComponent(var, toStore);
            UIComponentClassicTagBase parentTag = getParentUIComponentTag();


            // Is this loadBundle tag instance outside of <f:view>?
            if (null == parentTag) {
                // Yes.  Store the bundleComponent in a list so the <f:view> tag
                // can add the list contents as the first children.

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        Tag parent = this.getParent();
        while (null != parent && 
                (!(parent instanceof UIComponentClassicTagBase))) {
            parent = this.getParent();
        }
        UIComponentClassicTagBase result = (UIComponentClassicTagBase) parent;
        
        // Check for case where the <f:loadBundle> is inside of an included page,
        // but outside of the <f:subview> for that page.  This can happen
        // either when the <f:subview> is in the includING page *OR* when
        // the <f:subview> is in the includED page, yet the <f:loadBundle> is

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  private MethodExpression postProcessor;


  public int doStartTag() throws JspException {
    ActionListener actionListener = new DataExporter(target, type, fileName, pageOnly, excludeColumns, encoding, preProcessor, postProcessor);


    UIComponentClassicTagBase tag = UIComponentClassicTagBase.getParentUIComponentClassicTagBase(pageContext);


    if (tag == null)
      throw new JspException("DataExporter component needs to be enclosed in a UICommand component");


    if (tag.getCreated()) {


      UIComponent component = tag.getComponentInstance();


      ((ActionSource) component).addActionListener(actionListener);
    }


    return SKIP_BODY;

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  private ValueExpression contentDisposition;


  public int doStartTag() throws JspException {
    ActionListener actionListener = new FileDownloadActionListener(value, contentDisposition);


    UIComponentClassicTagBase tag = UIComponentClassicTagBase.getParentUIComponentClassicTagBase(pageContext);


    if(tag == null)
      throw new JspException("FileDownload component needs to be enclosed in a UICommand component");


    if(tag.getCreated()) {
      UIComponent component = tag.getComponentInstance();
      ((ActionSource) component).addActionListener(actionListener);
    }


    return SKIP_BODY;
  }

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com.sun.faces.taglib.jsf_core.ActionListenerTag

com.sun.faces.taglib.jsf_core.AttributeTag

com.sun.faces.taglib.jsf_core.LoadBundleTag

com.sun.faces.taglib.jsf_core.SetPropertyActionListenerTag

com.sun.faces.taglib.jsf_core.ValueChangeListenerTag

org.ajax4jsf.taglib.html.jsp.ActionParamTag

org.ajax4jsf.taglib.html.jsp.AjaxListenerTag

org.ajax4jsf.taglib.html.jsp.AjaxSupportTag

org.apache.myfaces.custom.updateactionlistener.UpdateActionListenerTag

org.apache.myfaces.taglib.core.AttributeTag

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