Package javax.faces.event

Examples of javax.faces.event.ValueChangeListener

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    }

    private ValueChangeListener _createValueChangeListener()
    {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        ValueChangeListener listener = null;
        // type and/or binding must be specified
        try
        {
            if (null != _binding)
            {
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            throw new SAXException("Parent tag <" + tag.getClass().getName() + "> has no component instance");
        }

        if (component instanceof EditableValueHolder) {
            String clazz = (String) FacesUtils.evaluate(tag.getFacesContext(), this.type);
            ValueChangeListener handler = null;
            try {
                handler = (ValueChangeListener) Class.forName(clazz).newInstance();
            } catch (Exception e) {
                throw new SAXException("Tag <" + tag.getClass().getName() + "> could not create action listener <" + clazz + ">", e);
            }
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            String targetAttributeName,
            String attributeExpressionString,
            ValueExpression attributeNameValueExpression,
            boolean ccAttrMeRedirection)
    {
        ValueChangeListener o = (ValueChangeListener) mctx.removeMethodExpressionTargeted(
                innerComponent, targetAttributeName);
        if (o != null)
        {
            ((EditableValueHolder) innerComponent).removeValueChangeListener(o);
        }

        // target is EditableValueHolder
        ValueChangeListener valueChangeListener = null;
        // If it is a redirection, a wrapper is used to locate the right instance and call it properly.
        if (ccAttrMeRedirection)
        {
            valueChangeListener = new RedirectMethodExpressionValueExpressionValueChangeListener(
                    attributeNameValueExpression);
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            throws IOException, FacesException, FaceletException, ELException {
        if (parent instanceof EditableValueHolder) {
            // only process if parent was just created
            if (parent.getParent() == null) {
                EditableValueHolder evh = (EditableValueHolder) parent;
                ValueChangeListener listener = null;
                ValueExpression ve = null;
                if (this.binding != null) {
                    ve = this.binding.getValueExpression(ctx,
                            ValueChangeListener.class);
                    listener = (ValueChangeListener) ve.getValue(ctx);
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        EditableValueHolder evh = (EditableValueHolder) parent;
        ValueExpression b = null;
        if (this.binding != null) {
            b = this.binding.getValueExpression(ctx, ValueChangeListener.class);
        }
        ValueChangeListener listener = new LazyValueChangeListener(
                this.listenerType, b);
        evh.addValueChangeListener(listener);
    }
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            this.binding = binding;
        }

        public void processValueChange(ValueChangeEvent event)
              throws AbortProcessingException {
            ValueChangeListener instance = null;
            FacesContext faces = FacesContext.getCurrentInstance();
            if (faces == null) {
                return;
            }
            if (this.binding != null) {
                instance = (ValueChangeListener) binding
                      .getValue(faces.getELContext());
            }
            if (instance == null && this.type != null) {
                try {
                    instance = (ValueChangeListener) ReflectionUtil
                          .forName(this.type).newInstance();
                } catch (Exception e) {
                    throw new AbortProcessingException(
                          "Couldn't Lazily instantiate ValueChangeListener",
                          e);
                }
                if (this.binding != null) {
                    binding.setValue(faces.getELContext(), instance);
                }
            }
            if (instance != null) {
                instance.processValueChange(event);
            }
        }
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        }

        // If binding is null, type is set and is a literal value,
        // then don't bother wrapping.  Just instantiate and
        // set.
        ValueChangeListener listener;
        if (binding == null && type != null && type.isLiteralText()) {
            try {
                listener = (ValueChangeListener)
                     Util.getListenerInstance(type, null);
            } catch (Exception e) {
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         *          implementation that no further processing on the current event
         *          should be performed
         */
        public void processValueChange(ValueChangeEvent event) throws AbortProcessingException {

            ValueChangeListener instance = (ValueChangeListener)
                    Util.getListenerInstance(type, binding);
            if (instance != null) {
                instance.processValueChange(event);
            } else {
                 if (LOGGER.isLoggable(Level.WARNING)) {
                    LOGGER.log(Level.WARNING,
                               "jsf.core.taglib.action_or_valuechange_listener.null_type_binding",
                               new Object[] {
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        EditableValueHolder evh = (EditableValueHolder) parent;
        ValueExpression b = null;
        if (this.binding != null) {
          b = this.binding.getValueExpression(ctx, ValueChangeListener.class);
        }
        ValueChangeListener listener = new LazyValueChangeListener(
            this.listenerType, b);
        evh.addValueChangeListener(listener);
      }
    } else {
      throw new TagException(this.tag,
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      this.binding = binding;
    }

        public void processValueChange(ValueChangeEvent event)
              throws AbortProcessingException {
            ValueChangeListener instance = null;
            FacesContext faces = FacesContext.getCurrentInstance();
            if (faces == null) {
                return;
            }
            if (this.binding != null) {
                instance = (ValueChangeListener) binding
                      .getValue(faces.getELContext());
            }
            if (instance == null && this.type != null) {
                try {
                    instance = (ValueChangeListener) ReflectionUtil
                          .forName(this.type).newInstance();
                } catch (Exception e) {
                    throw new AbortProcessingException(
                          "Couldn't Lazily instantiate ValueChangeListener",
                          e);
                }
                if (this.binding != null) {
                    binding.setValue(faces.getELContext(), instance);
                }
            }
            if (instance != null) {
                instance.processValueChange(event);
            }
        }
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Related Classes of javax.faces.event.ValueChangeListener

  • com.sun.facelets.tag.jsf.core.ValueChangeListenerHandler
  • com.sun.facelets.tag.jsf.core.ValueChangeListenerHandler$LazyValueChangeListener
  • com.sun.faces.facelets.tag.jsf.core.ValueChangeListenerHandler
  • com.sun.faces.facelets.tag.jsf.core.ValueChangeListenerHandler$LazyValueChangeListener
  • com.sun.faces.taglib.jsf_core.ValueChangeListenerTag
  • com.sun.faces.taglib.jsf_core.ValueChangeListenerTag$BindingValueChangeListener
  • org.ajax4jsf.tests.JsfMock$MethodValueChangeListenerMatcher
  • org.apache.cocoon.faces.taglib.ValueChangeListenerTag
  • org.apache.myfaces.taglib.core.DelegateValueChangeListener
  • org.apache.myfaces.taglib.core.ValueChangeListenerTag
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