UIForm (Java EE 5 SDK)

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Java EE 5 SDK

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javax.faces.component Class UIForm

java.lang.Object
  extended by javax.faces.component.UIComponent
      extended by javax.faces.component.UIComponentBase
          extended by javax.faces.component.UIForm
所有已实现的接口:
NamingContainer, StateHolder
直接已知子类:
HtmlForm
public class UIForm
extends UIComponentBase
implements NamingContainer

UIForm is a UIComponent that represents an input form to be presented to the user, and whose child components represent (among other things) the input fields to be included when the form is submitted.

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

字段摘要
static String COMPONENT_FAMILY
          The standard component family for this component.
static String COMPONENT_TYPE
          The standard component type for this component.
 
Fields inherited from class javax.faces.component.UIComponent
bindings
 
Fields inherited from interface javax.faces.component.NamingContainer
SEPARATOR_CHAR
 
构造器摘要
UIForm()
          Create a new UIForm instance with default property values.
 
方法摘要
 String getContainerClientId(FacesContext context)
          Override the UIComponent.getContainerClientId(javax.faces.context.FacesContext) to allow users to disable this form from prepending its clientId to its descendent's clientIds depending on the value of this form's isPrependId() property.
 String getFamily()
          Return the identifier of the component family to which this component belongs.
 boolean isPrependId()
           
 boolean isSubmitted()
          Returns the current value of the submitted property.
 void processDecodes(FacesContext context)
          Override UIComponent.processDecodes(javax.faces.context.FacesContext) to ensure that the form is decoded before its children.
 void processUpdates(FacesContext context)
          Override UIComponent.processUpdates(javax.faces.context.FacesContext) to ensure that the children of this UIForm instance are only processed if isSubmitted() returns true.
 void processValidators(FacesContext context)
          Override UIComponent.processValidators(javax.faces.context.FacesContext) to ensure that the children of this UIForm instance are only processed if isSubmitted() returns true.
 void setPrependId(boolean prependId)
           
 void setSubmitted(boolean submitted)
          If this UIForm instance (as opposed to other forms in the page) is experiencing a submit during this request processing lifecycle, this method must be called, with true as the argument, during the UIComponent.decode(javax.faces.context.FacesContext) for this UIForm instance.
 
类方法继承 javax.faces.component.UIComponentBase
addFacesListener, broadcast, decode, encodeBegin, encodeChildren, encodeEnd, findComponent, getAttributes, getChildCount, getChildren, getClientId, getFacesContext, getFacesListeners, getFacet, getFacetCount, getFacets, getFacetsAndChildren, getId, getParent, getRenderer, getRendererType, getRendersChildren, getValueBinding, invokeOnComponent, isRendered, isTransient, processRestoreState, processSaveState, queueEvent, removeFacesListener, restoreAttachedState, restoreState, saveAttachedState, saveState, setId, setParent, setRendered, setRendererType, setTransient, setValueBinding
 
类方法继承 javax.faces.component.UIComponent
encodeAll, getValueExpression, setValueExpression
 
类方法继承 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

字段详细信息

COMPONENT_TYPE

public static final String COMPONENT_TYPE

The standard component type for this component.

另请参见:
常量字段

COMPONENT_FAMILY

public static final String COMPONENT_FAMILY

The standard component family for this component.

另请参见:
常量字段

构造器详细信息

UIForm

public UIForm()

Create a new UIForm instance with default property values.

方法详细信息

getFamily

public String getFamily()
Description copied from class: UIComponent

Return the identifier of the component family to which this component belongs. This identifier, in conjunction with the value of the rendererType property, may be used to select the appropriate Renderer for this component instance.

规范说明:
getFamily in class UIComponent

isSubmitted

public boolean isSubmitted()

Returns the current value of the submitted property. The default value is false. See setSubmitted(boolean) for details.

setSubmitted

public void setSubmitted(boolean submitted)

If this UIForm instance (as opposed to other forms in the page) is experiencing a submit during this request processing lifecycle, this method must be called, with true as the argument, during the UIComponent.decode(javax.faces.context.FacesContext) for this UIForm instance. If this UIForm instance is not experiencing a submit, this method must be called, with false as the argument, during the UIComponent.decode(javax.faces.context.FacesContext) for this UIForm instance.

The value of a UIForm's submitted property must not be saved as part of its state.

isPrependId

public boolean isPrependId()

setPrependId

public void setPrependId(boolean prependId)

processDecodes

public void processDecodes(FacesContext context)

Override UIComponent.processDecodes(javax.faces.context.FacesContext) to ensure that the form is decoded before its children. This is necessary to allow the submitted property to be correctly set.

重写:
processDecodes in class UIComponentBase
参数:
context - FacesContext for the request we are processing
抛出异常:
NullPointerException - if context is null

processValidators

public void processValidators(FacesContext context)

Override UIComponent.processValidators(javax.faces.context.FacesContext) to ensure that the children of this UIForm instance are only processed if isSubmitted() returns true.

重写:
processValidators in class UIComponentBase
参数:
context - FacesContext for the request we are processing
抛出异常:
NullPointerException - if context is null

processUpdates

public void processUpdates(FacesContext context)

Override UIComponent.processUpdates(javax.faces.context.FacesContext) to ensure that the children of this UIForm instance are only processed if isSubmitted() returns true.

重写:
processUpdates in class UIComponentBase
参数:
context - FacesContext for the request we are processing
抛出异常:
NullPointerException - if context is null

getContainerClientId

public String getContainerClientId(FacesContext context)

Override the UIComponent.getContainerClientId(javax.faces.context.FacesContext) to allow users to disable this form from prepending its clientId to its descendent's clientIds depending on the value of this form's isPrependId() property.

重写:
getContainerClientId in class UIComponent
概述  软件包   类  树  已过时  索引  帮助 
Java EE 5 SDK

深圳电信培训中心.徐海蛟老师.
 上一个类   下一个类 框架    无框架    
摘要: 嵌套 | 字段 | 构造器 | 方法 详细信息: 字段 | 构造器 | 方法
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