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CustomDateEditor (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

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org.springframework.beans.propertyeditors
Class CustomDateEditor

java.lang.Object
  java.beans.PropertyEditorSupport
      org.springframework.beans.propertyeditors.CustomDateEditor

All Implemented Interfaces:

PropertyEditor

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public class CustomDateEditor
extends PropertyEditorSupport

PropertyEditor for java.util.Date, supporting a custom java.text.DateFormat.

This is not meant to be used as system PropertyEditor but rather as locale-specific date editor within custom controller code, to parse user-entered date strings into Date properties of beans, and render them in the UI form.

In web MVC code, this editor will typically be registered with binder.registerCustomEditor calls in an implementation of BaseCommandController's initBinder method.

Since:

28.04.2003

Author:

Juergen Hoeller

See Also:

Date, DateFormat, DataBinder.registerCustomEditor(java.lang.Class, java.beans.PropertyEditor), BaseCommandController.initBinder(javax.servlet.http.HttpServletRequest, org.springframework.web.bind.ServletRequestDataBinder)

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Constructor Summary
CustomDateEditor(DateFormat dateFormat, boolean allowEmpty)           Create a new CustomDateEditor instance, using the given DateFormat for parsing and rendering.
CustomDateEditor(DateFormat dateFormat, boolean allowEmpty, int exactDateLength)           Create a new CustomDateEditor instance, using the given DateFormat for parsing and rendering.

 

Method Summary
String	getAsText()           Format the Date as String, using the specified DateFormat.
void	setAsText(String text)           Parse the Date from the given text, using the specified DateFormat.

 

Methods inherited from class java.beans.PropertyEditorSupport
addPropertyChangeListener, firePropertyChange, getCustomEditor, getJavaInitializationString, getSource, getTags, getValue, isPaintable, paintValue, removePropertyChangeListener, setSource, setValue, supportsCustomEditor

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

CustomDateEditor

public CustomDateEditor(DateFormat dateFormat,
                        boolean allowEmpty)

Create a new CustomDateEditor instance, using the given DateFormat for parsing and rendering.

The "allowEmpty" parameter states if an empty String should be allowed for parsing, i.e. get interpreted as null value. Otherwise, an IllegalArgumentException gets thrown in that case.

Parameters:

dateFormat - DateFormat to use for parsing and rendering

allowEmpty - if empty strings should be allowed

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CustomDateEditor

public CustomDateEditor(DateFormat dateFormat,
                        boolean allowEmpty,
                        int exactDateLength)

Create a new CustomDateEditor instance, using the given DateFormat for parsing and rendering.

The "allowEmpty" parameter states if an empty String should be allowed for parsing, i.e. get interpreted as null value. Otherwise, an IllegalArgumentException gets thrown in that case.

The "exactDateLength" parameter states that IllegalArgumentException gets thrown if the String does not exactly match the length specified. This is useful because SimpleDateFormat does not enforce strict parsing of the year part, not even with setLenient(false). Without an "exactDateLength" specified, the "01/01/05" would get parsed to "01/01/0005".

Parameters:

dateFormat - DateFormat to use for parsing and rendering

allowEmpty - if empty strings should be allowed

exactDateLength - the exact expected length of the date String

Method Detail

setAsText

public void setAsText(String text)
               throws IllegalArgumentException

Parse the Date from the given text, using the specified DateFormat.

Specified by:

setAsText in interface PropertyEditor

Overrides:

setAsText in class PropertyEditorSupport

Throws:

IllegalArgumentException

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getAsText

public String getAsText()

Format the Date as String, using the specified DateFormat.

Specified by:

getAsText in interface PropertyEditor

Overrides:

getAsText in class PropertyEditorSupport

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