org.joda.time.format
Class DateTimeParserBucket

java.lang.Object
  extended by org.joda.time.format.DateTimeParserBucket

public class DateTimeParserBucket
extends Object

DateTimeParserBucket is an advanced class, intended mainly for parser implementations. It can also be used during normal parsing operations to capture more information about the parse.

This class allows fields to be saved in any order, but be physically set in a consistent order. This is useful for parsing against formats that allow field values to contradict each other.

Field values are applied in an order where the "larger" fields are set first, making their value less likely to stick. A field is larger than another when it's range duration is longer. If both ranges are the same, then the larger field has the longer duration. If it cannot be determined which field is larger, then the fields are set in the order they were saved.

For example, these fields were saved in this order: dayOfWeek, monthOfYear, dayOfMonth, dayOfYear. When computeMillis is called, the fields are set in this order: monthOfYear, dayOfYear, dayOfMonth, dayOfWeek.

DateTimeParserBucket is mutable and not thread-safe.

Since:
1.0
Author:
Brian S O'Neill, Fredrik Borgh

Constructor Summary
DateTimeParserBucket(long instantLocal, Chronology chrono, Locale locale)
          Deprecated. Use longer constructor
DateTimeParserBucket(long instantLocal, Chronology chrono, Locale locale, Integer pivotYear)
          Deprecated. Use longer constructor
DateTimeParserBucket(long instantLocal, Chronology chrono, Locale locale, Integer pivotYear, int defaultYear)
          Constructs a bucket, with the option of specifying the pivot year for two-digit year parsing.
 
Method Summary
 long computeMillis()
          Computes the parsed datetime by setting the saved fields.
 long computeMillis(boolean resetFields)
          Computes the parsed datetime by setting the saved fields.
 long computeMillis(boolean resetFields, String text)
          Computes the parsed datetime by setting the saved fields.
 Chronology getChronology()
          Gets the chronology of the bucket, which will be a local (UTC) chronology.
 Locale getLocale()
          Returns the locale to be used during parsing.
 int getOffset()
          Deprecated. use Integer version
 Integer getOffsetInteger()
          Returns the time zone offset in milliseconds used by computeMillis.
 Integer getPivotYear()
          Returns the default year used when information is incomplete.
 DateTimeZone getZone()
          Returns the time zone used by computeMillis.
 boolean restoreState(Object savedState)
          Restores the state of this bucket from a previously saved state.
 void saveField(DateTimeField field, int value)
          Saves a datetime field value.
 void saveField(DateTimeFieldType fieldType, int value)
          Saves a datetime field value.
 void saveField(DateTimeFieldType fieldType, String text, Locale locale)
          Saves a datetime field text value.
 Object saveState()
          Saves the state of this bucket, returning it in an opaque object.
 void setOffset(int offset)
          Deprecated. use Integer version
 void setOffset(Integer offset)
          Set a time zone offset to be used when computeMillis is called.
 void setPivotYear(Integer pivotYear)
          Sets the pivot year to use when parsing two digit years.
 void setZone(DateTimeZone zone)
          Set a time zone to be used when computeMillis is called.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DateTimeParserBucket

@Deprecated
public DateTimeParserBucket(long instantLocal,
                                       Chronology chrono,
                                       Locale locale)
Deprecated. Use longer constructor

Constructs a bucket.

Parameters:
instantLocal - the initial millis from 1970-01-01T00:00:00, local time
chrono - the chronology to use
locale - the locale to use

DateTimeParserBucket

@Deprecated
public DateTimeParserBucket(long instantLocal,
                                       Chronology chrono,
                                       Locale locale,
                                       Integer pivotYear)
Deprecated. Use longer constructor

Constructs a bucket, with the option of specifying the pivot year for two-digit year parsing.

Parameters:
instantLocal - the initial millis from 1970-01-01T00:00:00, local time
chrono - the chronology to use
locale - the locale to use
pivotYear - the pivot year to use when parsing two-digit years
Since:
1.1

DateTimeParserBucket

public DateTimeParserBucket(long instantLocal,
                            Chronology chrono,
                            Locale locale,
                            Integer pivotYear,
                            int defaultYear)
Constructs a bucket, with the option of specifying the pivot year for two-digit year parsing.

Parameters:
instantLocal - the initial millis from 1970-01-01T00:00:00, local time
chrono - the chronology to use
locale - the locale to use
pivotYear - the pivot year to use when parsing two-digit years
Since:
2.0
Method Detail

getChronology

public Chronology getChronology()
Gets the chronology of the bucket, which will be a local (UTC) chronology.


getLocale

public Locale getLocale()
Returns the locale to be used during parsing.

Returns:
the locale to use

getZone

public DateTimeZone getZone()
Returns the time zone used by computeMillis.


setZone

public void setZone(DateTimeZone zone)
Set a time zone to be used when computeMillis is called.


getOffset

@Deprecated
public int getOffset()
Deprecated. use Integer version

Returns the time zone offset in milliseconds used by computeMillis.


getOffsetInteger

public Integer getOffsetInteger()
Returns the time zone offset in milliseconds used by computeMillis.


setOffset

@Deprecated
public void setOffset(int offset)
Deprecated. use Integer version

Set a time zone offset to be used when computeMillis is called.


setOffset

public void setOffset(Integer offset)
Set a time zone offset to be used when computeMillis is called.


getPivotYear

public Integer getPivotYear()
Returns the default year used when information is incomplete.

This is used for two-digit years and when the largest parsed field is months or days.

A null value for two-digit years means to use the value from DateTimeFormatterBuilder. A null value for month/day only parsing will cause the default of 2000 to be used.

Returns:
Integer value of the pivot year, null if not set
Since:
1.1

setPivotYear

public void setPivotYear(Integer pivotYear)
Sets the pivot year to use when parsing two digit years.

If the value is set to null, this will indicate that default behaviour should be used.

Parameters:
pivotYear - the pivot year to use
Since:
1.1

saveField

public void saveField(DateTimeField field,
                      int value)
Saves a datetime field value.

Parameters:
field - the field, whose chronology must match that of this bucket
value - the value

saveField

public void saveField(DateTimeFieldType fieldType,
                      int value)
Saves a datetime field value.

Parameters:
fieldType - the field type
value - the value

saveField

public void saveField(DateTimeFieldType fieldType,
                      String text,
                      Locale locale)
Saves a datetime field text value.

Parameters:
fieldType - the field type
text - the text value
locale - the locale to use

saveState

public Object saveState()
Saves the state of this bucket, returning it in an opaque object. Call restoreState to undo any changes that were made since the state was saved. Calls to saveState may be nested.

Returns:
opaque saved state, which may be passed to restoreState

restoreState

public boolean restoreState(Object savedState)
Restores the state of this bucket from a previously saved state. The state object passed into this method is not consumed, and it can be used later to restore to that state again.

Parameters:
savedState - opaque saved state, returned from saveState
Returns:
true state object is valid and state restored

computeMillis

public long computeMillis()
Computes the parsed datetime by setting the saved fields. This method is idempotent, but it is not thread-safe.

Returns:
milliseconds since 1970-01-01T00:00:00Z
Throws:
IllegalArgumentException - if any field is out of range

computeMillis

public long computeMillis(boolean resetFields)
Computes the parsed datetime by setting the saved fields. This method is idempotent, but it is not thread-safe.

Parameters:
resetFields - false by default, but when true, unsaved field values are cleared
Returns:
milliseconds since 1970-01-01T00:00:00Z
Throws:
IllegalArgumentException - if any field is out of range

computeMillis

public long computeMillis(boolean resetFields,
                          String text)
Computes the parsed datetime by setting the saved fields. This method is idempotent, but it is not thread-safe.

Parameters:
resetFields - false by default, but when true, unsaved field values are cleared
text - optional text being parsed, to be included in any error message
Returns:
milliseconds since 1970-01-01T00:00:00Z
Throws:
IllegalArgumentException - if any field is out of range
Since:
1.3


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