Package org.springframework.beans.propertyeditors

Class CustomDateEditor

java.lang.Object

java.beans.PropertyEditorSupport

org.springframework.beans.propertyeditors.CustomDateEditor

All Implemented Interfaces:

PropertyEditor

public class CustomDateEditor
extends PropertyEditorSupport

Property editor 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, parsing user-entered number strings into Date properties of beans and rendering them in the UI form.

In web MVC code, this editor will typically be registered with binder.registerCustomEditor.

Since:

28.04.2003

Author:

Juergen Hoeller

See Also:

• Date
• DateFormat
• DataBinder.registerCustomEditor(java.lang.Class<?>, java.beans.PropertyEditor)

Constructor Summary

Constructors

Constructor	Description
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

Modifier and Type	Method	Description
String	getAsText()	Format the Date as String, using the specified DateFormat.
void	setAsText(@Nullable 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 Details

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 - the DateFormat to use for parsing and rendering

allowEmpty - if empty strings should be allowed

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". However, even with an "exactDateLength" specified, prepended zeros in the day or month part may still allow for a shorter year part, so consider this as just one more assertion that gets you closer to the intended date format.

Parameters:

dateFormat - the DateFormat to use for parsing and rendering

allowEmpty - if empty strings should be allowed

exactDateLength - the exact expected length of the date String

Method Details

setAsText

public void setAsText(@Nullable 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

getAsText

public String getAsText()

Format the Date as String, using the specified DateFormat.

Specified by:

getAsText in interface PropertyEditor

Overrides:

getAsText in class PropertyEditorSupport