UISelectOne (Java EE 5 SDK)

Java

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Java EE 5 SDK

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javax.faces.component Class UISelectOne

java.lang.Object
  extended by javax.faces.component.UIComponent
      extended by javax.faces.component.UIComponentBase
          extended by javax.faces.component.UIOutput
              extended by javax.faces.component.UIInput
                  extended by javax.faces.component.UISelectOne
所有已实现的接口:
EditableValueHolder, StateHolder, ValueHolder
直接已知子类:
HtmlSelectOneListbox, HtmlSelectOneMenu, HtmlSelectOneRadio
public class UISelectOne
extends UIInput

UISelectOne is a UIComponent that represents the user's choice of zero or one items from among a discrete set of available options. The user can modify the selected value. Optionally, the component can be preconfigured with a currently selected item, by storing it as the value property of the component.

This component is generally rendered as a select box or a group of radio buttons.

By default, the rendererType property is set to "javax.faces.Menu". 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.
static String INVALID_MESSAGE_ID
          The message identifier of the FacesMessage to be created if a value not matching the available options is specified.
 
Fields inherited from class javax.faces.component.UIInput
CONVERSION_MESSAGE_ID, REQUIRED_MESSAGE_ID, UPDATE_MESSAGE_ID
 
Fields inherited from class javax.faces.component.UIComponent
bindings
 
构造器摘要
UISelectOne()
          Create a new UISelectOne instance with default property values.
 
方法摘要
 String getFamily()
          Return the identifier of the component family to which this component belongs.
protected  void validateValue(FacesContext context, Object value)
          In addition to the standard validation behavior inherited from UIInput, ensure that any specified value is equal to one of the available options.
 
类方法继承 javax.faces.component.UIInput
addValidator, addValueChangeListener, compareValues, decode, getConvertedValue, getConverterMessage, getRequiredMessage, getSubmittedValue, getValidator, getValidatorMessage, getValidators, getValueChangeListener, getValueChangeListeners, isImmediate, isLocalValueSet, isRequired, isValid, processDecodes, processUpdates, processValidators, removeValidator, removeValueChangeListener, resetValue, restoreState, saveState, setConverterMessage, setImmediate, setLocalValueSet, setRequired, setRequiredMessage, setSubmittedValue, setValid, setValidator, setValidatorMessage, setValue, setValueChangeListener, updateModel, validate
 
类方法继承 javax.faces.component.UIOutput
getConverter, getLocalValue, getValue, setConverter
 
类方法继承 javax.faces.component.UIComponentBase
addFacesListener, broadcast, 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, saveAttachedState, setId, setParent, setRendered, setRendererType, setTransient, setValueBinding
 
类方法继承 javax.faces.component.UIComponent
encodeAll, getContainerClientId, getValueExpression, setValueExpression
 
类方法继承 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface javax.faces.component.ValueHolder
getConverter, getLocalValue, getValue, setConverter
 

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

INVALID_MESSAGE_ID

public static final String INVALID_MESSAGE_ID

The message identifier of the FacesMessage to be created if a value not matching the available options is specified.

另请参见:
常量字段

构造器详细信息

UISelectOne

public UISelectOne()

Create a new UISelectOne 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.

重写:
getFamily in class UIInput

validateValue

protected void validateValue(FacesContext context,
                             Object value)

In addition to the standard validation behavior inherited from UIInput, ensure that any specified value is equal to one of the available options. Before comparing each option, coerce the option value type to the type of this component's value following the Expression Language coercion rules. If the specified value is not equal to any of the options, enqueue an error message and set the valid property to false.

重写:
validateValue in class UIInput
参数:
context - The FacesContext for the current request
value - The converted value to test for membership.
抛出异常:
NullPointerException - if context is null
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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