DoubleConverter (Java EE 5 SDK)

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javax.faces.convert Class DoubleConverter

java.lang.Object
  extended by javax.faces.convert.DoubleConverter
所有已实现的接口:
Converter
public class DoubleConverter
extends Object
implements Converter

Converter implementation for java.lang.Double (and double primitive) values.

字段摘要
static String CONVERTER_ID
          The standard converter id for this converter.
static String DOUBLE_ID
          The message identifier of the FacesMessage to be created if the conversion to Double fails.
static String STRING_ID
          The message identifier of the FacesMessage to be created if the conversion of the Double value to String fails.
 
构造器摘要
DoubleConverter()
           
 
方法摘要
 Object getAsObject(FacesContext context, UIComponent component, String value)
          Convert the specified string value, which is associated with the specified UIComponent, into a model data object that is appropriate for being stored during the Apply Request Values phase of the request processing lifecycle.
 String getAsString(FacesContext context, UIComponent component, Object value)
          Convert the specified model object value, which is associated with the specified UIComponent, into a String that is suitable for being included in the response generated during the Render Response phase of the request processing lifeycle.
 
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

CONVERTER_ID

public static final String CONVERTER_ID

The standard converter id for this converter.

另请参见:
常量字段

DOUBLE_ID

public static final String DOUBLE_ID

The message identifier of the FacesMessage to be created if the conversion to Double fails. The message format string for this message may optionally include the following placeholders:

  • {0} replaced by the unconverted value.
  • {1} replaced by an example value.
  • {2} replaced by a String whose value is the label of the input component that produced this message.

另请参见:
常量字段

STRING_ID

public static final String STRING_ID

The message identifier of the FacesMessage to be created if the conversion of the Double value to String fails. The message format string for this message may optionally include the following placeholders:

  • {0} relaced by the unconverted value.
  • {1} replaced by a String whose value is the label of the input component that produced this message.

另请参见:
常量字段

构造器详细信息

DoubleConverter

public DoubleConverter()
方法详细信息

getAsObject

public Object getAsObject(FacesContext context,
                          UIComponent component,
                          String value)
Description copied from interface: Converter

Convert the specified string value, which is associated with the specified UIComponent, into a model data object that is appropriate for being stored during the Apply Request Values phase of the request processing lifecycle.

规范说明:
getAsObject in interface Converter
参数:
context - FacesContext for the request being processed
component - UIComponent with which this model object value is associated
value - String value to be converted (may be null)
返回:
null if the value to convert is null, otherwise the result of the conversion
抛出异常:
ConverterException - if conversion cannot be successfully performed
NullPointerException - if context or component is null

getAsString

public String getAsString(FacesContext context,
                          UIComponent component,
                          Object value)
Description copied from interface: Converter

Convert the specified model object value, which is associated with the specified UIComponent, into a String that is suitable for being included in the response generated during the Render Response phase of the request processing lifeycle.

规范说明:
getAsString in interface Converter
参数:
context - FacesContext for the request being processed
component - UIComponent with which this model object value is associated
value - Model object value to be converted (may be null)
返回:
a zero-length String if value is null, otherwise the result of the conversion
抛出异常:
ConverterException - if conversion cannot be successfully performed
NullPointerException - if context or component 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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