HtmlGraphicImage (Java EE 5)

Java EE API


javax.faces.component.html Class HtmlGraphicImage

java.lang.Object
  extended by javax.faces.component.UIComponent
      extended by javax.faces.component.UIComponentBase
          extended by javax.faces.component.UIGraphic
              extended by javax.faces.component.html.HtmlGraphicImage
All Implemented Interfaces:
StateHolder

public class HtmlGraphicImage
extends UIGraphic


表示 HTML img 元素,用于获取和呈现图形图像。

默认情况下,rendererType 属性必须设置为 "javax.faces.Image"。可以调用 setRendererType() 方法更改此值。

英文文档:

Represents an HTML img element, used to retrieve and render a graphical image.

By default, the rendererType property must be set to "javax.faces.Image". This value can be changed by calling the setRendererType() method.


Field Summary
static String
 
Fields inherited from class javax.faces.component.UIGraphic
 
Fields inherited from class javax.faces.component.UIComponent
 
Constructor Summary
 
Method Summary
 String
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 boolean
 void
 Object
 void
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Methods inherited from class javax.faces.component.UIGraphic
 
Methods inherited from class javax.faces.component.UIComponentBase
 
Methods inherited from class javax.faces.component.UIComponent
 
Methods inherited from class java.lang.Object
 

Field Detail

英文文档:

COMPONENT_TYPE

public static final String COMPONENT_TYPE

The standard component type for this component.

See Also:
Constant Field Values

Constructor Detail

public HtmlGraphicImage()
英文文档:

HtmlGraphicImage

public HtmlGraphicImage()
Method Detail

public String getAlt()

返回 alt 属性的值。

内容:此组件所呈现元素的可替换文本描述。

英文文档:

getAlt

public String getAlt()

Return the value of the alt property.

Contents: Alternate textual description of the element rendered by this component.


public void setAlt(String alt)

设置 alt 属性的值。

英文文档:

setAlt

public void setAlt(String alt)

Set the value of the alt property.


public String getDir()

返回 dir 属性的值。

内容:未继承方向性的文本的方向指示。有效值有 "LTR"(left-to-right,从左到右)和 "RTL"(right-to-left,从右到左)。

英文文档:

getDir

public String getDir()

Return the value of the dir property.

Contents: Direction indication for text that does not inherit directionality. Valid values are "LTR" (left-to-right) and "RTL" (right-to-left).


public void setDir(String dir)

设置 dir 属性的值。

英文文档:

setDir

public void setDir(String dir)

Set the value of the dir property.


public String getHeight()

返回 height 属性的值。

内容:重写此图像的高度。

英文文档:

getHeight

public String getHeight()

Return the value of the height property.

Contents: Override for the height of this image.


public void setHeight(String height)

设置 height 属性的值。

英文文档:

setHeight

public void setHeight(String height)

Set the value of the height property.


public boolean isIsmap()

返回 ismap 属性的值。

内容:指示此图像将用作服务器端图像映射的标志。这样的图像必须包括在超链接 ("a") 内。值为 false 将不呈现任何属性,而值为 true 呈现属性的方式与 ismap="ismap" 的情况相同。

英文文档:

isIsmap

public boolean isIsmap()

Return the value of the ismap property.

Contents: Flag indicating that this image is to be used as a server side image map. Such an image must be enclosed within a hyperlink ("a"). A value of false causes no attribute to be rendered, while a value of true causes the attribute to be rendered as ismap="ismap".


public void setIsmap(boolean ismap)

设置 ismap 属性的值。

英文文档:

setIsmap

public void setIsmap(boolean ismap)

Set the value of the ismap property.


public String getLang()

返回 lang 属性的值。

内容:描述为此组件生成的标记中所用语言的代码。

英文文档:

getLang

public String getLang()

Return the value of the lang property.

Contents: Code describing the language used in the generated markup for this component.


public void setLang(String lang)

设置 lang 属性的值。

英文文档:

setLang

public void setLang(String lang)

Set the value of the lang property.


public String getLongdesc()

返回 longdesc 属性的值。

内容:指向此元素表示的图像的详细描述的 URI。

英文文档:

getLongdesc

public String getLongdesc()

Return the value of the longdesc property.

Contents: URI to a long description of the image represented by this element.


public void setLongdesc(String longdesc)

设置 longdesc 属性的值。

英文文档:

setLongdesc

public void setLongdesc(String longdesc)

Set the value of the longdesc property.


public String getOnclick()

返回 onclick 属性的值。

内容:在此元素上单击指针按钮时执行的 Javascript 代码。

英文文档:

getOnclick

public String getOnclick()

Return the value of the onclick property.

Contents: Javascript code executed when a pointer button is clicked over this element.


public void setOnclick(String onclick)

设置 onclick 属性的值。

英文文档:

setOnclick

public void setOnclick(String onclick)

Set the value of the onclick property.


public String getOndblclick()

返回 ondblclick 属性的值。

内容:在此元素上双击指针按钮时执行的 Javascript 代码。

英文文档:

getOndblclick

public String getOndblclick()

Return the value of the ondblclick property.

Contents: Javascript code executed when a pointer button is double clicked over this element.


public void setOndblclick(String ondblclick)

设置 ondblclick 属性的值。

英文文档:

setOndblclick

public void setOndblclick(String ondblclick)

Set the value of the ondblclick property.


public String getOnkeydown()

返回 onkeydown 属性的值。

内容:在此元素上按下键时执行的 Javascript 代码。

英文文档:

getOnkeydown

public String getOnkeydown()

Return the value of the onkeydown property.

Contents: Javascript code executed when a key is pressed down over this element.


public void setOnkeydown(String onkeydown)

设置 onkeydown 属性的值。

英文文档:

setOnkeydown

public void setOnkeydown(String onkeydown)

Set the value of the onkeydown property.


public String getOnkeypress()

返回 onkeypress 属性的值。

内容:在此元素上按下并释放键时执行的 Javascript 代码。

英文文档:

getOnkeypress

public String getOnkeypress()

Return the value of the onkeypress property.

Contents: Javascript code executed when a key is pressed and released over this element.


public void setOnkeypress(String onkeypress)

设置 onkeypress 属性的值。

英文文档:

setOnkeypress

public void setOnkeypress(String onkeypress)

Set the value of the onkeypress property.


public String getOnkeyup()

返回 onkeyup 属性的值。

内容:在此元素上释放键时执行的 Javascript 代码。

英文文档:

getOnkeyup

public String getOnkeyup()

Return the value of the onkeyup property.

Contents: Javascript code executed when a key is released over this element.


public void setOnkeyup(String onkeyup)

设置 onkeyup 属性的值。

英文文档:

setOnkeyup

public void setOnkeyup(String onkeyup)

Set the value of the onkeyup property.


public String getOnmousedown()

返回 onmousedown 属性的值。

内容:在此元素上按下指针按钮时执行的 Javascript 代码。

英文文档:

getOnmousedown

public String getOnmousedown()

Return the value of the onmousedown property.

Contents: Javascript code executed when a pointer button is pressed down over this element.


public void setOnmousedown(String onmousedown)

设置 onmousedown 属性的值。

英文文档:

setOnmousedown

public void setOnmousedown(String onmousedown)

Set the value of the onmousedown property.


public String getOnmousemove()

返回 onmousemove 属性的值。

内容:当指针按钮移动到此元素内时执行的 Javascript 代码。

英文文档:

getOnmousemove

public String getOnmousemove()

Return the value of the onmousemove property.

Contents: Javascript code executed when a pointer button is moved within this element.


public void setOnmousemove(String onmousemove)

设置 onmousemove 属性的值。

英文文档:

setOnmousemove

public void setOnmousemove(String onmousemove)

Set the value of the onmousemove property.


public String getOnmouseout()

返回 onmouseout 属性的值。

内容:当指针按钮移出此元素时执行的 Javascript 代码。

英文文档:

getOnmouseout

public String getOnmouseout()

Return the value of the onmouseout property.

Contents: Javascript code executed when a pointer button is moved away from this element.


public void setOnmouseout(String onmouseout)

设置 onmouseout 属性的值。

英文文档:

setOnmouseout

public void setOnmouseout(String onmouseout)

Set the value of the onmouseout property.


public String getOnmouseover()

返回 onmouseover 属性的值。

内容:当指针按钮移动到此元素上时执行的 Javascript 代码。

英文文档:

getOnmouseover

public String getOnmouseover()

Return the value of the onmouseover property.

Contents: Javascript code executed when a pointer button is moved onto this element.


public void setOnmouseover(String onmouseover)

设置 onmouseover 属性的值。

英文文档:

setOnmouseover

public void setOnmouseover(String onmouseover)

Set the value of the onmouseover property.


public String getOnmouseup()

返回 onmouseup 属性的值。

内容:在此元素上释放指针按钮时执行的 Javascript 代码。

英文文档:

getOnmouseup

public String getOnmouseup()

Return the value of the onmouseup property.

Contents: Javascript code executed when a pointer button is released over this element.


public void setOnmouseup(String onmouseup)

设置 onmouseup 属性的值。

英文文档:

setOnmouseup

public void setOnmouseup(String onmouseup)

Set the value of the onmouseup property.


public String getStyle()

返回 style 属性的值。

内容:呈现此组件时应用的 CSS 样式。

英文文档:

getStyle

public String getStyle()

Return the value of the style property.

Contents: CSS style(s) to be applied when this component is rendered.


public void setStyle(String style)

设置 style 属性的值。

英文文档:

setStyle

public void setStyle(String style)

Set the value of the style property.


public String getStyleClass()

返回 styleClass 属性的值。

内容:呈现此元素时应用的以空格分隔的 CSS 样式类列表。此值必须作为生成标记上的 "class" 属性传递。

英文文档:

getStyleClass

public String getStyleClass()

Return the value of the styleClass property.

Contents: Space-separated list of CSS style class(es) to be applied when this element is rendered. This value must be passed through as the "class" attribute on generated markup.


public void setStyleClass(String styleClass)

设置 styleClass 属性的值。

英文文档:

setStyleClass

public void setStyleClass(String styleClass)

Set the value of the styleClass property.


public String getTitle()

返回 title 属性的值。

内容:关于为此组件生成的标记元素的建议性标题信息。

英文文档:

getTitle

public String getTitle()

Return the value of the title property.

Contents: Advisory title information about markup elements generated for this component.


public void setTitle(String title)

设置 title 属性的值。

英文文档:

setTitle

public void setTitle(String title)

Set the value of the title property.


public String getUsemap()

返回 usemap 属性的值。

内容:此元素为其提供图像的客户端图像映射(HTML "map" 元素)的名称。

英文文档:

getUsemap

public String getUsemap()

Return the value of the usemap property.

Contents: The name of a client side image map (an HTML "map" element) for which this element provides the image.


public void setUsemap(String usemap)

设置 usemap 属性的值。

英文文档:

setUsemap

public void setUsemap(String usemap)

Set the value of the usemap property.


public String getWidth()

返回 width 属性的值。

内容:重写此图像的宽度。

英文文档:

getWidth

public String getWidth()

Return the value of the width property.

Contents: Override for the width of this image.


public void setWidth(String width)

设置 width 属性的值。

英文文档:

setWidth

public void setWidth(String width)

Set the value of the width property.


public Object saveState(FacesContext _context)
英文文档:

saveState

public Object saveState(FacesContext _context)
Description copied from interface: StateHolder

Gets the state of the instance as a Serializable Object.

If the class that implements this interface has references to instances that implement StateHolder (such as a UIComponent with event handlers, validators, etc.) this method must call the StateHolder.saveState(javax.faces.context.FacesContext) method on all those instances as well. This method must not save the state of children and facets. That is done via the StateManager

This method must not alter the state of the implementing object. In other words, after executing this code:

 Object state = component.saveState(facesContext);
 

component should be the same as before executing it.

The return from this method must be Serializable

Specified by:
saveState in interface StateHolder
Overrides:
saveState in class UIGraphic

public void restoreState(FacesContext _context, Object _state)
英文文档:

restoreState

public void restoreState(FacesContext _context,
                         Object _state)
Description copied from interface: StateHolder

Perform any processing required to restore the state from the entries in the state Object.

If the class that implements this interface has references to instances that also implement StateHolder (such as a UIComponent with event handlers, validators, etc.) this method must call the StateHolder.restoreState(javax.faces.context.FacesContext, java.lang.Object) method on all those instances as well.

Specified by:
restoreState in interface StateHolder
Overrides:
restoreState in class UIGraphic


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一看就知道只有菜鸟才干这么无知的事啦。

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