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org.apache.derby.client.am
Class DateTime
java.lang.Objectorg.apache.derby.client.am.DateTime
- public class DateTime
- extends java.lang.Object
High performance converters from date/time byte encodings to JDBC Date, Time and Timestamp objects.
Using this class for direct date/time conversions from bytes offers superior performance over the alternative method of first constructing a Java String from the encoded bytes, and then using java.sql.Date.valueOf() 55 , java.sql.Time.valueOf() 55 or java.sql.Timestamp.valueOf() 55 .
| Field Summary | |
private static int |
dateRepresentationLength
|
private static int |
timeRepresentationLength
|
private static int |
timestampRepresentationLength
|
| Constructor Summary | |
private |
DateTime()
|
| Method Summary | |
static java.sql.Date |
dateBytesToDate(byte[] buffer,
int offset,
java.sql.Date recyclableDate)
Expected character representation is DERBY string representation of a date, which is in one of the following format. |
static java.sql.Timestamp |
dateBytesToTimestamp(byte[] buffer,
int offset,
java.sql.Timestamp recyclableTimestamp)
Expected character representation is DERBY string representation of a date, which is in one of the following format. |
static int |
dateToDateBytes(byte[] buffer,
int offset,
java.sql.Date date)
The returned character representation is in JDBC date format: yyyy-mm-dd date format in DERBY string
representation of a date. |
static int |
dateToTimestampBytes(byte[] buffer,
int offset,
java.sql.Date date)
The returned character representation is in DERBY string representation of a timestamp: yyyy-mm-dd-hh.mm.ss.ffffff. |
static java.sql.Time |
timeBytesToTime(byte[] buffer,
int offset,
java.sql.Time recyclableTime)
Expected character representation is DERBY string representation of a time, which is in one of the following format: hh.mm.ss. |
static java.sql.Timestamp |
timeBytesToTimestamp(byte[] buffer,
int offset,
java.sql.Timestamp recyclableTimestamp)
Expected character representation is DERBY string representation of a time, which is in one of the following format. |
static java.sql.Date |
timestampBytesToDate(byte[] buffer,
int offset,
java.sql.Date recyclableDate)
Expected character representation is DERBY string representation of a timestamp: yyyy-mm-dd-hh.mm.ss.ffffff. |
static java.sql.Time |
timestampBytesToTime(byte[] buffer,
int offset,
java.sql.Time recyclableTime)
Expected character representation is DERBY string representation of a timestamp: yyyy-mm-dd-hh.mm.ss.ffffff. |
static java.sql.Timestamp |
timestampBytesToTimestamp(byte[] buffer,
int offset,
java.sql.Timestamp recyclableTimestamp)
Expected character representation is DERBY string representation of a timestamp: yyyy-mm-dd-hh.mm.ss.ffffff. |
static int |
timestampToDateBytes(byte[] buffer,
int offset,
java.sql.Timestamp timestamp)
The returned character representation is in JDBC date escape format: yyyy-mm-dd, which is the same
as JIS date format in DERBY string representation of a date. |
static int |
timestampToTimeBytes(byte[] buffer,
int offset,
java.sql.Timestamp timestamp)
The returned character representation is in JDBC time escape format: hh:mm:ss, which is the same as
JIS time format in DERBY string representation of a time. |
static int |
timestampToTimestampBytes(byte[] buffer,
int offset,
java.sql.Timestamp timestamp)
The returned character representation is in DERBY string representation of a timestamp: yyyy-mm-dd-hh.mm.ss.ffffff. |
static int |
timeToTimeBytes(byte[] buffer,
int offset,
java.sql.Time time)
The returned character representation is in JDBC time escape format: hh:mm:ss, which is the same as
JIS time format in DERBY string representation of a time. |
static int |
timeToTimestampBytes(byte[] buffer,
int offset,
java.sql.Time time)
The returned character representation is in DERBY string representation of a timestamp: yyyy-mm-dd-hh.mm.ss.ffffff. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
dateRepresentationLength
private static final int dateRepresentationLength
- See Also:
- Constant Field Values
timeRepresentationLength
private static final int timeRepresentationLength
- See Also:
- Constant Field Values
timestampRepresentationLength
private static final int timestampRepresentationLength
- See Also:
- Constant Field Values
| Constructor Detail |
DateTime
private DateTime()
| Method Detail |
dateBytesToDate
public static final java.sql.Date dateBytesToDate(byte[] buffer, int offset, java.sql.Date recyclableDate)
- Expected character representation is DERBY string representation of a date, which is in one of the following
format.
timeBytesToTime
public static final java.sql.Time timeBytesToTime(byte[] buffer, int offset, java.sql.Time recyclableTime)
- Expected character representation is DERBY string representation of a time, which is in one of the following
format: hh.mm.ss.
timestampBytesToTimestamp
public static final java.sql.Timestamp timestampBytesToTimestamp(byte[] buffer, int offset, java.sql.Timestamp recyclableTimestamp)
- Expected character representation is DERBY string representation of a timestamp:
yyyy-mm-dd-hh.mm.ss.ffffff.
dateToDateBytes
public static final int dateToDateBytes(byte[] buffer,
int offset,
java.sql.Date date)
throws ConversionException
- The returned character representation is in JDBC date format:
yyyy-mm-dddate format in DERBY string representation of a date.
timeToTimeBytes
public static final int timeToTimeBytes(byte[] buffer,
int offset,
java.sql.Time time)
- The returned character representation is in JDBC time escape format:
hh:mm:ss, which is the same as JIS time format in DERBY string representation of a time.
timestampToTimestampBytes
public static final int timestampToTimestampBytes(byte[] buffer,
int offset,
java.sql.Timestamp timestamp)
throws ConversionException
- The returned character representation is in DERBY string representation of a timestamp:
yyyy-mm-dd-hh.mm.ss.ffffff.
dateBytesToTimestamp
public static final java.sql.Timestamp dateBytesToTimestamp(byte[] buffer, int offset, java.sql.Timestamp recyclableTimestamp)
- Expected character representation is DERBY string representation of a date, which is in one of the following
format.
timeBytesToTimestamp
public static final java.sql.Timestamp timeBytesToTimestamp(byte[] buffer, int offset, java.sql.Timestamp recyclableTimestamp)
- Expected character representation is DERBY string representation of a time, which is in one of the following
format.
timestampBytesToDate
public static final java.sql.Date timestampBytesToDate(byte[] buffer, int offset, java.sql.Date recyclableDate)
- Expected character representation is DERBY string representation of a timestamp:
yyyy-mm-dd-hh.mm.ss.ffffff.
timestampBytesToTime
public static final java.sql.Time timestampBytesToTime(byte[] buffer, int offset, java.sql.Time recyclableTime)
- Expected character representation is DERBY string representation of a timestamp:
yyyy-mm-dd-hh.mm.ss.ffffff.
timestampToDateBytes
public static final int timestampToDateBytes(byte[] buffer,
int offset,
java.sql.Timestamp timestamp)
throws ConversionException
- The returned character representation is in JDBC date escape format:
yyyy-mm-dd, which is the same as JIS date format in DERBY string representation of a date.
timestampToTimeBytes
public static final int timestampToTimeBytes(byte[] buffer,
int offset,
java.sql.Timestamp timestamp)
- The returned character representation is in JDBC time escape format:
hh:mm:ss, which is the same as JIS time format in DERBY string representation of a time.
dateToTimestampBytes
public static final int dateToTimestampBytes(byte[] buffer,
int offset,
java.sql.Date date)
throws ConversionException
- The returned character representation is in DERBY string representation of a timestamp:
yyyy-mm-dd-hh.mm.ss.ffffff.
timeToTimestampBytes
public static final int timeToTimestampBytes(byte[] buffer,
int offset,
java.sql.Time time)
- The returned character representation is in DERBY string representation of a timestamp:
yyyy-mm-dd-hh.mm.ss.ffffff.
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SUMMARY: JAVADOC | SOURCE | DOWNLOAD | NESTED | FIELD | CONSTR | METHOD |
DETAIL: FIELD | CONSTR | METHOD | ||||||||