If someone will have the same problem in the future, here is the solution: The content I put into value attribute is an object which holds binary data of a image. I want to display a pdf file using JSF and rich faces, using a4j tag library. Can anyone give me a quick how-to?. The a4j:mediaOutput> component implements one of the basic features specified in the framework. The component is a facility for generating images, video.

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Attribute references to the method that will be used for content creating. The attribute may be used with the same elements as onfocus. It is a reference to the steam that should be used for output.

NullPointerExeption and NetworkError 400 (Bad Request) by using a4j:mediaOutput from RichFaces

The client-side script method to mediaoutpput called when the element loses the focus either when pointing a device or tabbing navigation. This attribute specifies the position of the current element in the tabbing order for the current document.

Data value calculated at render time and stored in URI also as part of cache Keyat generation time passed to send method.


Sign up using Email and Password. All values are lengths. The relationship from the current document to the anchor specified by this hyperlink.

Stack Overflow works best with JavaScript enabled. When the radius value is percentage value, user agents should calculate the final radius value based on the associated object’s width and height.

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A bean class transmitted into value should implement Serializable interface. Define a rectangular region. This attribute specifies the shape of a region. Coordinates are relative to the top, left corner of the object.

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Object type contains deserialized object with data specified in the “value” attribute. This value must be a number between 0 and It is used to define the corresponded type in the header of an HTTP response. This attribute specifies the name of a frame where a document is to be opened. If time of modification is earlier, then the framework doesn’t call generation and return code This is the default value.

It must have two parameter with a type of java. By assigning a name to a frame via the name attribute, authors can refer to it as the “target” of links defined by other elements.

All values are lengths. Hence, when using the component it’s possible to output user data of any type on a page with AJAX requests.


I’m not sure if I understand the documentation in the right way and I’m not able to find any problem with this code. MethodExpression signature must match void createContentExpression java.

The “cacheable” defines whether the response will be cached or not. The onblur event occurs when an element loses focus either by the pointing device or by tabbing navigation. Component identification parameters Name Value component-type org.

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An output stream accepts output bytes and sends them to a recipient. An access key is a single character from the document character set. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

The following values for align concern the object’s position with respect to surrounding text: This attribute assigns an access key mddiaoutput an element. This value must be a number between 0 and