Java Doc for DateField.java in  » 6.0-JDK-Modules » j2me » javax » microedition » lcdui » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » javax.microedition.lcdui 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   javax.microedition.lcdui.Item
      javax.microedition.lcdui.DateField

DateField
public class DateField extends Item (Code)
A DateField is an editable component for presenting date and time (calendar) information that may be placed into a Form. Value for this field can be initially set or left unset. If value is not set then the UI for the field shows this clearly. The field value for "not initialized state" is not valid value and getDate() for this state returns null.

Instance of a DateField can be configured to accept date or time information or both of them. This input mode configuration is done by DATE, TIME or DATE_TIME static fields of this class. DATE input mode allows to set only date information and TIME only time information (hours, minutes). DATE_TIME allows to set both clock time and date values.

In TIME input mode the date components of Date object must be set to the "zero epoch" value of January 1, 1970.

Calendar calculations in this field are based on default locale and defined time zone. Because of the calculations and different input modes date object may not contain same millisecond value when set to this field and get back from this field.
since:
   MIDP 1.0



Field Summary
final public static  intDATE
     Input mode for date information (day, month, year).
final public static  intDATE_TIME
     Input mode for date (day, month, year) and time (minutes, hours) information.
final public static  intTIME
     Input mode for time information (hours and minutes).
 CalendarcurrentDate
     The last saved date.
 DateFieldLFdateFieldLF
     The look&feel associated with this DateField.
 booleaninitialized
    
 intmode
    

Constructor Summary
public  DateField(String label, int mode)
     Creates a DateField object with the specified label and mode.
public  DateField(String label, int mode, java.util.TimeZone timeZone)
     Creates a date field in which calendar calculations are based on specific TimeZone object and the default calendaring system for the current locale.

Method Summary
 booleanacceptFocus()
     Return whether the Item takes user input focus.
public  java.util.DategetDate()
     Returns date value of this field.
public  intgetInputMode()
     Gets input mode for this date field.
public  voidsetDate(java.util.Date date)
     Sets a new value for this field.
 voidsetDateImpl(java.util.Date date)
     Sets the date.
public  voidsetInputMode(int mode)
     Set input mode for this date field.

Field Detail
DATE
final public static int DATE(Code)
Input mode for date information (day, month, year). With this mode this DateField presents and allows only to modify date value. The time information of date object is ignored.

Value 1 is assigned to DATE.




DATE_TIME
final public static int DATE_TIME(Code)
Input mode for date (day, month, year) and time (minutes, hours) information. With this mode this DateField presents and allows to modify both time and date information.

Value 3 is assigned to DATE_TIME.




TIME
final public static int TIME(Code)
Input mode for time information (hours and minutes). With this mode this DateField presents and allows only to modify time. The date components should be set to the "zero epoch" value of January 1, 1970 and should not be accessed.

Value 2 is assigned to TIME.




currentDate
Calendar currentDate(Code)
The last saved date. This is used for making the last saved date bold.



dateFieldLF
DateFieldLF dateFieldLF(Code)
The look&feel associated with this DateField. Set in the constructor.



initialized
boolean initialized(Code)
A flag indicating the initialization state of this DateField



mode
int mode(Code)
The mode of this DateField




Constructor Detail
DateField
public DateField(String label, int mode)(Code)
Creates a DateField object with the specified label and mode. This call is identical to DateField(label, mode, null).
Parameters:
  label - item label
Parameters:
  mode - the input mode, one of DATE, TIMEor DATE_TIME
throws:
  IllegalArgumentException - if the input mode'svalue is invalid



DateField
public DateField(String label, int mode, java.util.TimeZone timeZone)(Code)
Creates a date field in which calendar calculations are based on specific TimeZone object and the default calendaring system for the current locale. The value of the DateField is initially in the "uninitialized" state. If timeZone is null, the system's default time zone is used.
Parameters:
  label - item label
Parameters:
  mode - the input mode, one of DATE, TIMEor DATE_TIME
Parameters:
  timeZone - a specific time zone, or null for thedefault time zone
throws:
  IllegalArgumentException - if the input mode's valueis invalid




Method Detail
acceptFocus
boolean acceptFocus()(Code)
Return whether the Item takes user input focus. Always return true



getDate
public java.util.Date getDate()(Code)
Returns date value of this field. Returned value is null if field value is not initialized. The date object is constructed according the rules of locale specific calendaring system and defined time zone. In TIME mode field the date components are set to the "zero epoch" value of January 1, 1970. If a date object that presents time beyond one day from this "zero epoch" then this field is in "not initialized" state and this method returns null. In DATE mode field the time component of the calendar is set to zero when constructing the date object. date object representing time or date depending on input mode
See Also:   DateField.setDate



getInputMode
public int getInputMode()(Code)
Gets input mode for this date field. Valid input modes are DATE, TIME and DATE_TIME. input mode of this field
See Also:   DateField.setInputMode



setDate
public void setDate(java.util.Date date)(Code)
Sets a new value for this field. null can be passed to set the field state to "not initialized" state. The input mode of this field defines what components of passed Date object is used.

In TIME input mode the date components must be set to the "zero epoch" value of January 1, 1970. If a date object that presents time beyond one day then this field is in "not initialized" state. In TIME input mode the date component of Date object is ignored and time component is used to precision of minutes.

In DATE input mode the time component of Date object is ignored.

In DATE_TIME input mode the date and time component of Date are used but only to precision of minutes.
Parameters:
  date - new value for this field
See Also:   DateField.getDate




setDateImpl
void setDateImpl(java.util.Date date)(Code)
Sets the date.
Parameters:
  date - the date value to set to.



setInputMode
public void setInputMode(int mode)(Code)
Set input mode for this date field. Valid input modes are DATE, TIME and DATE_TIME.
Parameters:
  mode - the input mode, must be one of DATE,TIME or DATE_TIME
throws:
  IllegalArgumentException - if an invalid value is specified
See Also:   DateField.getInputMode



Fields inherited from javax.microedition.lcdui.Item
final public static int BUTTON(Code)(Java Doc)
final public static int HYPERLINK(Code)(Java Doc)
final public static int LAYOUT_2(Code)(Java Doc)
final public static int LAYOUT_BOTTOM(Code)(Java Doc)
final public static int LAYOUT_CENTER(Code)(Java Doc)
final public static int LAYOUT_DEFAULT(Code)(Java Doc)
final public static int LAYOUT_EXPAND(Code)(Java Doc)
final public static int LAYOUT_LEFT(Code)(Java Doc)
final public static int LAYOUT_NEWLINE_AFTER(Code)(Java Doc)
final public static int LAYOUT_NEWLINE_BEFORE(Code)(Java Doc)
final public static int LAYOUT_RIGHT(Code)(Java Doc)
final public static int LAYOUT_SHRINK(Code)(Java Doc)
final public static int LAYOUT_TOP(Code)(Java Doc)
final public static int LAYOUT_VCENTER(Code)(Java Doc)
final public static int LAYOUT_VEXPAND(Code)(Java Doc)
final public static int LAYOUT_VSHRINK(Code)(Java Doc)
final public static int PLAIN(Code)(Java Doc)
final static int VALID_LAYOUT(Code)(Java Doc)
ItemCommandListener commandListener(Code)(Java Doc)
Command commands(Code)(Java Doc)
Command defaultCommand(Code)(Java Doc)
ItemLF itemLF(Code)(Java Doc)
String label(Code)(Java Doc)
int layout(Code)(Java Doc)
int lockedHeight(Code)(Java Doc)
int lockedWidth(Code)(Java Doc)
int numCommands(Code)(Java Doc)
Screen owner(Code)(Java Doc)
int userPreferredHeight(Code)(Java Doc)
int userPreferredWidth(Code)(Java Doc)

Methods inherited from javax.microedition.lcdui.Item
boolean acceptFocus()(Code)(Java Doc)
public void addCommand(Command cmd)(Code)(Java Doc)
ItemLF getLF()(Code)(Java Doc)
public String getLabel()(Code)(Java Doc)
public int getLayout()(Code)(Java Doc)
public int getMinimumHeight()(Code)(Java Doc)
public int getMinimumWidth()(Code)(Java Doc)
public int getPreferredHeight()(Code)(Java Doc)
public int getPreferredWidth()(Code)(Java Doc)
void itemDeleted()(Code)(Java Doc)
void lSetOwner(Screen owner)(Code)(Java Doc)
void lUpdateLockedSize()(Code)(Java Doc)
public void notifyStateChanged()(Code)(Java Doc)
public void removeCommand(Command cmd)(Code)(Java Doc)
void removeCommandImpl(Command cmd)(Code)(Java Doc)
public void setDefaultCommand(Command cmd)(Code)(Java Doc)
public void setItemCommandListener(ItemCommandListener l)(Code)(Java Doc)
public void setLabel(String label)(Code)(Java Doc)
public void setLayout(int layout)(Code)(Java Doc)
void setLayoutImpl(int layout)(Code)(Java Doc)
public void setPreferredSize(int width, int height)(Code)(Java Doc)

Methods inherited from java.lang.Object
public boolean equals(Object obj)(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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