public final class DateAndTime extends AbstractLazyEncodedByteArray implements FastSerializable
The API offered by this class is as if the type were specified in ASN.1 as follows.
DateAndTime ::= SEQUENCE { year INTEGER, month INTEGER, day INTEGER, hour INTEGER, minute INTEGER, second INTEGER }The class takes care of encoding the field values into a byte-array and decoding field values from a byte-array, the encoded representation being as tabulated below. The digits are encoded separately in BCD. An INAP date has only two digits in the year, whereas a CAP date has four digits in the year.
Data Encoding - based on ETSI TS 300 374-1 September 1994 §6.3 p46 | ||||||||
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8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
Octet 0 | Year units | Year tens | ||||||
Octet 1 | Month units | Month tens | ||||||
Octet 2 | Day units | Day tens | ||||||
Octet 3 | Hours units | Hours tens | ||||||
Octet 4 | Minutes units | Minutes tens | ||||||
Octet 5 | Seconds units | Seconds tens |
Data Encoding - based on ETSI TS 101 046 v7.1.0 (2000-07) p40 | ||||||||
---|---|---|---|---|---|---|---|---|
8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
Octet 0 | Year hundreds | Year thousands | ||||||
Octet 1 | Year units | Year tens | ||||||
Octet 2 | Month units | Month tens | ||||||
Octet 3 | Day units | Day tens | ||||||
Octet 4 | Hours units | Hours tens | ||||||
Octet 5 | Minutes units | Minutes tens | ||||||
Octet 6 | Seconds units | Seconds tens |
Note that the INAP form does not store millenium or century information. When encoding to INAP, the millenium and century digits are ignored. When decoding from INAP, a millenium and century are selected so that the resulting year lies in the range [1970,2069]; if a different range is needed, then use the returned year modulo 100 to obtain the raw value.
isDecoded
encoded
FIELD_ABSENT, FIELD_UNINITIALISED
Constructor and Description |
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DateAndTime()
Constructs a new DateAndTime object with no fields set.
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DateAndTime(byte[] data)
Constructs a new DateAndTime object from network-encoded data.
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DateAndTime(byte[] data,
int start,
int len)
Constructs a new DateAndTime object from part of network-encoded data.
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DateAndTime(DataInput in)
Constructs a new DateAndTime object from data deserialized from a stream that was written by
toStream(DataOutput) . |
DateAndTime(int year,
int month,
int day,
int hour,
int minute,
int second)
Constructs a new DateAndTime object from given values for all fields.
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Modifier and Type | Method and Description |
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void |
checkFieldsSet()
Checks that all mandatory fields are present.
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DateAndTime |
clone()
Constructs a copy of this object and everything reachable from it.
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static DateAndTime |
copyOf(DateAndTime from)
Creates a new object of this type, cloning the values of common fields from the given object of any subclass of the same base type.
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protected void |
decode()
Computes the decoded form from the encoded form.
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protected void |
encode()
Computes the encoded form from the decoded form.
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protected boolean |
encodedIsInvalid()
Determines whether the encoded form is invalid.
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byte[] |
getCapEncodedForm()
Gets the CAP encoded form of this DateAndTime instance.
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static int |
getContainedLength(byte[] data,
int start,
int len)
Determines the length of the encoded value that commences at offset
start in the given data . |
int |
getDay()
Gets the value of the day of the month, in range [1,31].
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byte[] |
getEncodedForm()
Gets the encoded form.
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static FieldAccessor[] |
getFieldAccessors()
Gets a new array of the accessors for fields of this type.
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Map<String,Object> |
getFieldsMap(boolean withAbsents)
Gets a Map from field-name to field-value for the fields of a sequence.
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int |
getHour()
Gets the value of the hour, in range [0,23].
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byte[] |
getInapEncodedForm()
Gets the INAP encoded form of this DateAndTime instance.
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int |
getMinute()
Gets the value of the minute, in range [0,59].
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int |
getMonth()
Gets the value of the month, in range [1,12].
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int |
getSecond()
Gets the value of the second, in range [0,59].
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int |
getYear()
Gets the value of the year, in range [0000,9999].
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boolean |
hasDay()
Tests whether the field Day has a value.
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boolean |
hasHour()
Tests whether the field Hour has a value.
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boolean |
hasMinute()
Tests whether the field Minute has a value.
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boolean |
hasMonth()
Tests whether the field Month has a value.
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boolean |
hasSecond()
Tests whether the field Second has a value.
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boolean |
hasYear()
Tests whether the field Year has a value.
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DateAndTime |
setDay(int value)
Sets the value of the day of the month, in range [1,31].
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DateAndTime |
setDayPresent(boolean flag)
Sets the presence or absence of the field Day.
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DateAndTime |
setHour(int value)
Sets the value of the hour, in range [0,23].
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DateAndTime |
setHourPresent(boolean flag)
Sets the presence or absence of the field Hour.
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DateAndTime |
setMinute(int value)
Sets the value of the minute, in range [0,59].
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DateAndTime |
setMinutePresent(boolean flag)
Sets the presence or absence of the field Minute.
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DateAndTime |
setMonth(int value)
Sets the value of the month, in range [1,12].
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DateAndTime |
setMonthPresent(boolean flag)
Sets the presence or absence of the field Month.
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DateAndTime |
setSecond(int value)
Sets the value of the second, in range [0,59].
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DateAndTime |
setSecondPresent(boolean flag)
Sets the presence or absence of the field Second.
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DateAndTime |
setYear(int value)
Sets the value of the year, in range [0000,9999].
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DateAndTime |
setYearPresent(boolean flag)
Sets the presence or absence of the field Year.
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void |
toStream(DataOutput out)
Serializes this object to a stream in a form suitable for reading by
DateAndTime(DataInput) . |
String |
toStringPretty()
Gets a string representation for this object, similar to "30/09/1993 12:15:01".
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checkDecode, checkModifyAndDecode
equals, hashCode, toString
checkModify, isReadOnly, setReadOnly
public DateAndTime()
public DateAndTime(byte[] data)
data
- network-encoded dataNullPointerException
- if data is nullpublic DateAndTime(byte[] data, int start, int len)
start
and is len
bytes long.
The data is not decoded and might not be decodable.data
- network-encoded datastart
- starting offset of network-encoded data in byte arraylen
- default length if not predictableNullPointerException
- if data is nullIllegalArgumentException
- if len is negativepublic DateAndTime(int year, int month, int day, int hour, int minute, int second)
year
- the year, in range [0000,9999]month
- the month, in range [1,12]day
- the day of the month, in range [1,31]hour
- the hour, in range [0,23]minute
- the minute, in range [0,59]second
- the second, in range [0,59]public DateAndTime(DataInput in) throws IOException
toStream(DataOutput)
.in
- the stream to read fromEOFException
- if reading is pre-empted by end-of-fileIOException
- if the data cannot be readpublic void toStream(DataOutput out) throws IOException
DateAndTime(DataInput)
.toStream
in interface FastSerializable
out
- the stream to write toIOException
- if an I/O error occurspublic boolean hasYear() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic DateAndTime setYearPresent(boolean flag) throws IllegalStateException
flag
- whether the field should be marked as presentIllegalStateException
- if this instance has been marked as read-onlypublic boolean hasMonth() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic DateAndTime setMonthPresent(boolean flag) throws IllegalStateException
flag
- whether the field should be marked as presentIllegalStateException
- if this instance has been marked as read-onlypublic boolean hasDay() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic DateAndTime setDayPresent(boolean flag) throws IllegalStateException
flag
- whether the field should be marked as presentIllegalStateException
- if this instance has been marked as read-onlypublic boolean hasHour() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic DateAndTime setHourPresent(boolean flag) throws IllegalStateException
flag
- whether the field should be marked as presentIllegalStateException
- if this instance has been marked as read-onlypublic boolean hasMinute() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic DateAndTime setMinutePresent(boolean flag) throws IllegalStateException
flag
- whether the field should be marked as presentIllegalStateException
- if this instance has been marked as read-onlypublic boolean hasSecond() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic DateAndTime setSecondPresent(boolean flag) throws IllegalStateException
flag
- whether the field should be marked as presentIllegalStateException
- if this instance has been marked as read-onlypublic void checkFieldsSet() throws EncodeException
checkFieldsSet
in class AbstractLazyEncodedDataObject<byte[]>
EncodeException
- if any mandatory field is not presentpublic int getYear() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic int getMonth() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic int getDay() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic int getHour() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic int getMinute() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic int getSecond() throws DecodeException
DecodeException
- if encoded state cannot be decodedpublic DateAndTime setYear(int value) throws IllegalStateException
value
- int representation of the year, in range [0000,9999]IllegalStateException
public DateAndTime setMonth(int value) throws IllegalStateException
value
- int representation of the month, in range [1,12]IllegalStateException
public DateAndTime setDay(int value) throws IllegalStateException
value
- int representation of the day of the month, in range [1,31]IllegalStateException
public DateAndTime setHour(int value) throws IllegalStateException
value
- int representation of the hour, in range [0,23]IllegalStateException
public DateAndTime setMinute(int value) throws IllegalStateException
value
- int representation of the minute, in range [0,59]IllegalStateException
public DateAndTime setSecond(int value) throws IllegalStateException
value
- int representation of the second, in range [0,59]IllegalStateException
public static DateAndTime copyOf(DateAndTime from)
from
- the object from which to copypublic DateAndTime clone()
clone
in interface DataObject
clone
in class AbstractDataObject
public static FieldAccessor[] getFieldAccessors()
public Map<String,Object> getFieldsMap(boolean withAbsents)
getFieldsMap
in class AbstractFieldsObject
withAbsents
- whether to put absent optional fields into Mapprotected boolean encodedIsInvalid()
public byte[] getEncodedForm() throws EncodeException
EncodeException
- if encoding failspublic static int getContainedLength(byte[] data, int start, int len)
start
in the given data
.
The value is not fully decoded and might not be decodable.
Values of this type are of variable length, so the given length
is returned if the data is long enough, otherwise 0 is returned.data
- network-encoded datastart
- index into data where value commenceslen
- length in data to be consideredpublic byte[] getInapEncodedForm()
public byte[] getCapEncodedForm()
public String toStringPretty()
protected void encode() throws EncodeException
encode
in class AbstractLazyEncodedDataObject<byte[]>
EncodeException
- if Year is not in range [0000,9999], or Month is not in range [1,12], or Day is not in range [1,31], or Hour is not in range [0,23], or Minute is not in range [0,59], or Second is not in range [0,59]protected void decode() throws DecodeException
decode
in class AbstractLazyEncodedDataObject<byte[]>
DecodeException
- if less than 6 or more than 7 octets to be decoded