Examples of org.apache.wicket.behavior.IBehavior

org.apache.wicket.behavior.IBehavior
Behaviors are kind of plug-ins for Components. They allow to be added to a component and get essential events forwarded by the component. they can be bound to a concrete component (using the bind method is called when the behavior is attached), but they don't need to. They can modify the components markup by changing the rendered ComponentTag. Behaviors can have their own models as well, and they are notified when these are to be detached by the component.
It is recommended that you extend from {@link org.apache.wicket.behavior.AbstractBehavior}instead of directly implementing this interface.
@see org.apache.wicket.behavior.IBehaviorListener @see org.apache.wicket.markup.html.IHeaderContributor @see org.apache.wicket.behavior.AbstractAjaxBehavior @see org.apache.wicket.AttributeModifier @author Ralf Ebert @author Eelco Hillenius @author Igor Vaynberg (ivaynberg)


    final Iterator<IBehavior> behaviors = getBehaviors().iterator();


    while (behaviors.hasNext())
    {
      IBehavior behavior = behaviors.next();
      if (!behavior.getStatelessHint(this))
      {
        return false;
      }
    }
    return true;

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        List<IBehavior> behaviors = getBehaviorsImpl();
        if (behaviors != null)
        {
          for (Iterator<IBehavior> i = behaviors.iterator(); i.hasNext();)
          {
            IBehavior behavior = i.next();
            if (isBehaviorAccepted(behavior))
            {
              try
              {
                behavior.exception(this, ex);
              }
              catch (Throwable ex2)
              {
                log.error("Error while cleaning up after exception", ex2);
              }

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      if (behaviors != null)
      {
        final Iterator<IBehavior> iter = behaviors.iterator();
        while (iter.hasNext())
        {
          IBehavior behavior = iter.next();
          if (behavior instanceof IHeaderContributor && isBehaviorAccepted(behavior))
          {
            ((IHeaderContributor)behavior).renderHead(container.getHeaderResponse());
          }
        }

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    List<IBehavior> behaviors = getBehaviorsImpl();
    if (behaviors != null)
    {
      for (Iterator<IBehavior> i = behaviors.iterator(); i.hasNext();)
      {
        IBehavior behavior = i.next();
        if (isBehaviorAccepted(behavior))
        {
          behavior.beforeRender(this);
        }
      }
    }
  }

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    List<IBehavior> behaviors = getBehaviorsImpl();
    if (behaviors != null)
    {
      for (Iterator<IBehavior> i = behaviors.iterator(); i.hasNext();)
      {
        IBehavior behavior = i.next();
        if (isBehaviorAccepted(behavior))
        {
          behavior.afterRender(this);
        }
      }
    }
  }

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      {
        tag = tag.mutable();


        for (Iterator<IBehavior> i = behaviors.iterator(); i.hasNext();)
        {
          IBehavior behavior = i.next();


          // Components may reject some behavior components
          if (isBehaviorAccepted(behavior))
          {
            behavior.onComponentTag(this, tag);
          }
        }
      }


      // apply behaviors that are attached to the component tag.
      if (tag.hasBehaviors())
      {
        Iterator<? extends IBehavior> tagBehaviors = tag.getBehaviors();
        while (tagBehaviors.hasNext())
        {
          final IBehavior behavior = tagBehaviors.next();
          behavior.onComponentTag(this, tag);
        }
      }


      // Write the tag
      tag.writeOutput(getResponse(), stripWicketTags, findMarkupStream().getWicketNamespace());

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    List behaviors = getBehaviorsImpl();
    if (behaviors != null)
    {
      for (Iterator i = behaviors.iterator(); i.hasNext();)
      {
        IBehavior behavior = (IBehavior)i.next();


        // Always detach models, 'accepted' or not. Otherwise, if they
        // are accepted during render, but not here - something can go
        // undetached, and calling isEnabled can also lead to nasty side
        // effects. See for instance Timo's comment on
        // http://issues.apache.org/jira/browse/WICKET-673
        behavior.detach(this);


        if (behavior.isTemporary())
        {
          removeBehavior(behavior);
        }
      }
    }

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    final Iterator behaviors = getBehaviors().iterator();


    while (behaviors.hasNext())
    {
      IBehavior behavior = (IBehavior)behaviors.next();
      if (!behavior.getStatelessHint(this))
      {
        return false;
      }
    }
    return true;

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        List behaviors = getBehaviorsImpl();
        if (behaviors != null)
        {
          for (Iterator i = behaviors.iterator(); i.hasNext();)
          {
            IBehavior behavior = (IBehavior)i.next();
            if (isBehaviorAccepted(behavior))
            {
              try
              {
                behavior.exception(this, ex);
              }
              catch (Throwable ex2)
              {
                log.error("Error while cleaning up after exception", ex2);
              }

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      if (behaviors != null)
      {
        final Iterator iter = behaviors.iterator();
        while (iter.hasNext())
        {
          IBehavior behavior = (IBehavior)iter.next();
          if (behavior instanceof IHeaderContributor && isBehaviorAccepted(behavior))
          {
            ((IHeaderContributor)behavior).renderHead(container.getHeaderResponse());
          }
        }

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