FloatConverter (Java EE 5 SDK)

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Java EE 5 SDK

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javax.faces.convert Class FloatConverter

java.lang.Object
  javax.faces.convert.FloatConverter

所有已实现的接口:: Converter

public class FloatConverter
extends Object
implements Converter

Converter implementation for java.lang.Float (and float primitive) values.

字段摘要
`static String`	`CONVERTER_ID` The standard converter id for this converter.
`static String`	`FLOAT_ID` The message identifier of the `FacesMessage` to be created if the conversion to `Float` fails.
`static String`	`STRING_ID` The message identifier of the `FacesMessage` to be created if the conversion of the `Float` value to `String` fails.

构造器摘要
`FloatConverter()`

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

FLOAT_ID

public static final String FLOAT_ID

The message identifier of the FacesMessage to be created if the conversion to Float 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 Float 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

FloatConverter

public FloatConverter()

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)