| |||||||
| FRAMES NO FRAMES | |||||||
This tag renders a html img tag and can be used to render dynamic images.
Embedding images into html pages requires a second request to get the binary data stream of the image. The result is that the state of the view including the state of request scoped beans will not be available when the image is requested.
The image data is written by an image renderer which can be defined by the imageRendererClass attribute.
This component is able to use nested f:param elements to pass parameters to the image renderer.
| Tag Information | |
| Tag Class | org.apache.myfaces.custom.graphicimagedynamic.GraphicImageDynamicTag |
| TagExtraInfo Class | None |
| Body Content | JSP |
| Display Name | None |
| Attributes | ||||
| Name | Required | Request-time | Type | Description |
| imageRendererClass | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Class)
| The class which implements org.apache.myfaces.custom.graphicimagedynamic.ImageRenderer. The image renderer is responsible for loading the image. The class must have a default constructor. Any request scoped attribute or managed bean is not available when this image renderer is instantiated and used. The image renderer must render the binary data for the image by using the parameters passed by nested f:param elements and/or using session or application scoped beans. |
| value | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| A value binding which will be called to get the instance of an org.apache.myfaces.custom.graphicimagedynamic.ImageRenderer. |
| border | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Specifies the width of the border of this element, in pixels. Deprecated in HTML 4.01. |
| hspace | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: The amount of white space to be inserted to the left and right of this element, in undefined units. Deprecated in HTML 4.01. |
| vspace | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: The amount of white space to be inserted above and below this element, in undefined units. Deprecated in HTML 4.01. |
| enabledOnUserRole | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| If user is in given role, this component will be rendered normally. If not, no hyperlink is rendered but all nested tags (=body) are rendered. |
| visibleOnUserRole | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| If user is in given role, this component will be rendered normally. If not, nothing is rendered and the body of this tag will be skipped. |
| forceId | false | false | java.lang.String | If true, this component will force the use of the specified id when rendering. |
| forceIdIndex | false | false | java.lang.String | If false, this component will not append a '[n]' suffix (where 'n' is the row index) to components that are contained within a "list." This value will be true by default and the value will be ignored if the value of forceId is false (or not specified.) |
| align | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Specifies the horizontal alignment of this element. Deprecated in HTML 4.01. |
| height | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Overrides the natural height of this image, by specifying height in pixels. |
| ismap | false | false | javax.el.ValueExpression
(must evaluate to boolean)
| HTML: Specifies server-side image map handling for this image. |
| longdesc | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: A link to a long description of the image. |
| usemap | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Specifies an image map to use with this image. |
| width | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Overrides the natural width of this image, by specifying width in pixels. |
| style | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: CSS styling instructions. |
| styleClass | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| The CSS class for this element. Corresponds to the HTML 'class' attribute. |
| alt | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Specifies alternative text that can be used by a browser that can't show this element. |
| onclick | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when the element is clicked. |
| ondblclick | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when the element is double-clicked. |
| onkeydown | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when a key is pressed down over this element. |
| onkeypress | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when a key is pressed over this element. |
| onkeyup | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when a key is released over this element. |
| onmousedown | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when the pointing device is pressed over this element. |
| onmousemove | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when the pointing device is moved while it is in this element. |
| onmouseout | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when the pointing device is moves out of this element. |
| onmouseover | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when the pointing device is moved into this element. |
| onmouseup | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: Script to be invoked when the pointing device is released over this element. |
| dir | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: The direction of text display, either 'ltr' (left-to-right) or 'rtl' (right-to-left). |
| lang | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: The base language of this document. |
| title | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| HTML: An advisory title for this element. Often used by the user agent as a tooltip. |
| url | false | false | javax.el.ValueExpression
(must evaluate to java.lang.Object)
| An alias for the "value" attribute. |
| id | false | true | java.lang.String | Get a string which uniquely identifies this UIComponent within the scope of the nearest ancestor NamingContainer component. The id is not necessarily unique across all components in the current view. |
| rendered | false | false | javax.el.ValueExpression
(must evaluate to boolean)
| A boolean value that indicates whether this component should be rendered. Default value: true. |
| binding | false | false | javax.el.ValueExpression
(must evaluate to javax.faces.component.UIComponent)
| Identifies a backing bean property (of type UIComponent or appropriate subclass) to bind to this component instance. This value must be an EL expression. |
| Variables | No Variables Defined. |
| |||||||
| FRAMES NO FRAMES | |||||||