LegacyDateTimeUtils (H2 Database Engine 2.0.0 API)

java.lang.Object
- org.h2.util.LegacyDateTimeUtils

```
public final class LegacyDateTimeUtils
extends Object
```
Date and time utilities for Date, Time, and Timestamp classes.

字段概要

字段
限定符和类型	字段和说明
`static Date`	`PROLEPTIC_GREGORIAN_CHANGE` Gregorian change date for a `GregorianCalendar` that represents a proleptic Gregorian calendar.
`static TimeZone`	`UTC` UTC time zone.

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static long`	`dateValueFromLocalMillis(long ms)` Convert a local datetime in millis to an encoded date.
`static ValueDate`	`fromDate(CastDataProvider provider, TimeZone timeZone, Date date)` Get or create a date value for the given date.
`static ValueTime`	`fromTime(CastDataProvider provider, TimeZone timeZone, Time time)` Get or create a time value for the given time.
`static ValueTimestamp`	`fromTimestamp(CastDataProvider provider, long ms, int nanos)` Get or create a timestamp value for the given date/time in millis.
`static ValueTimestamp`	`fromTimestamp(CastDataProvider provider, TimeZone timeZone, Timestamp timestamp)` Get or create a timestamp value for the given timestamp.
`static long`	`getMillis(CastDataProvider provider, TimeZone tz, long dateValue, long timeNanos)` Calculate the milliseconds since 1970-01-01 (UTC) for the given date and time (in the specified timezone).
`static int`	`getTimeZoneOffsetMillis(CastDataProvider provider, long ms)` Returns local time zone offset for a specified timestamp.
`static TypeInfo`	`legacyClassToType(Class<?> clazz)` Get the type information for the given legacy Java class.
`static Value`	`legacyObjectToValue(CastDataProvider session, Object x)` Convert a legacy Java object to a value.
`static long`	`nanosFromLocalMillis(long ms)` Convert a time in milliseconds in local time to the nanoseconds since midnight.
`static Date`	`toDate(CastDataProvider provider, TimeZone timeZone, Value value)` Get the date value converted to the specified time zone.
`static Time`	`toTime(CastDataProvider provider, TimeZone timeZone, Value value)` Get the time value converted to the specified time zone.
`static Timestamp`	`toTimestamp(CastDataProvider provider, TimeZone timeZone, Value value)` Get the timestamp value converted to the specified time zone.
`static <T> T`	`valueToLegacyType(Class<T> type, Value value, CastDataProvider provider)` Converts the specified value to an object of the specified legacy type.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - PROLEPTIC_GREGORIAN_CHANGE
```
public static final Date PROLEPTIC_GREGORIAN_CHANGE
```
    Gregorian change date for a GregorianCalendar that represents a proleptic Gregorian calendar.
  - UTC
```
public static final TimeZone UTC
```
    UTC time zone.
- 方法详细资料
  - fromDate
```
public static ValueDate fromDate(CastDataProvider provider,
                                 TimeZone timeZone,
                                 Date date)
```
    Get or create a date value for the given date.
    
    参数:
    
    provider - the cast information provider
    
    timeZone - time zone, or null for default
    
    date - the date
    
    返回:
    
    the value
  - fromTime
```
public static ValueTime fromTime(CastDataProvider provider,
                                 TimeZone timeZone,
                                 Time time)
```
    Get or create a time value for the given time.
    
    参数:
    
    provider - the cast information provider
    
    timeZone - time zone, or null for default
    
    time - the time
    
    返回:
    
    the value
  - fromTimestamp
```
public static ValueTimestamp fromTimestamp(CastDataProvider provider,
                                           TimeZone timeZone,
                                           Timestamp timestamp)
```
    Get or create a timestamp value for the given timestamp.
    
    参数:
    
    provider - the cast information provider
    
    timeZone - time zone, or null for default
    
    timestamp - the timestamp
    
    返回:
    
    the value
  - fromTimestamp
```
public static ValueTimestamp fromTimestamp(CastDataProvider provider,
                                           long ms,
                                           int nanos)
```
    Get or create a timestamp value for the given date/time in millis.
    
    参数:
    
    provider - the cast information provider
    
    ms - the milliseconds
    
    nanos - the nanoseconds
    
    返回:
    
    the value
  - dateValueFromLocalMillis
```
public static long dateValueFromLocalMillis(long ms)
```
    Convert a local datetime in millis to an encoded date.
    
    参数:
    
    ms - the milliseconds
    
    返回:
    
    the date value
  - nanosFromLocalMillis
```
public static long nanosFromLocalMillis(long ms)
```
    Convert a time in milliseconds in local time to the nanoseconds since midnight.
    
    参数:
    
    ms - the milliseconds
    
    返回:
    
    the nanoseconds
  - toDate
```
public static Date toDate(CastDataProvider provider,
                          TimeZone timeZone,
                          Value value)
```
    Get the date value converted to the specified time zone.
    
    参数:
    
    provider - the cast information provider
    
    timeZone - the target time zone
    
    value - the value to convert
    
    返回:
    
    the date
  - toTime
```
public static Time toTime(CastDataProvider provider,
                          TimeZone timeZone,
                          Value value)
```
    Get the time value converted to the specified time zone.
    
    参数:
    
    provider - the cast information provider
    
    timeZone - the target time zone
    
    value - the value to convert
    
    返回:
    
    the time
  - toTimestamp
```
public static Timestamp toTimestamp(CastDataProvider provider,
                                    TimeZone timeZone,
                                    Value value)
```
    Get the timestamp value converted to the specified time zone.
    
    参数:
    
    provider - the cast information provider
    
    timeZone - the target time zone
    
    value - the value to convert
    
    返回:
    
    the timestamp
  - getMillis
```
public static long getMillis(CastDataProvider provider,
                             TimeZone tz,
                             long dateValue,
                             long timeNanos)
```
    Calculate the milliseconds since 1970-01-01 (UTC) for the given date and time (in the specified timezone).
    
    参数:
    
    provider - the cast information provider
    
    tz - the timezone of the parameters, or null for the default timezone
    
    dateValue - date value
    
    timeNanos - nanoseconds since midnight
    
    返回:
    
    the number of milliseconds (UTC)
  - getTimeZoneOffsetMillis
```
public static int getTimeZoneOffsetMillis(CastDataProvider provider,
                                          long ms)
```
    Returns local time zone offset for a specified timestamp.
    
    参数:
    
    provider - the cast information provider
    
    ms - milliseconds since Epoch in UTC
    
    返回:
    
    local time zone offset
  - legacyObjectToValue
```
public static Value legacyObjectToValue(CastDataProvider session,
                                        Object x)
```
    Convert a legacy Java object to a value.
    
    参数:
    
    session - the session
    
    x - the value
    
    返回:
    
    the value, or null if not supported
  - valueToLegacyType
```
public static <T> T valueToLegacyType(Class<T> type,
                                      Value value,
                                      CastDataProvider provider)
```
    Converts the specified value to an object of the specified legacy type.
    
    类型参数:
    
    T - the type
    
    参数:
    
    type - the class
    
    value - the value
    
    provider - the cast information provider
    
    返回:
    
    an instance of the specified class, or null if not supported
  - legacyClassToType
```
public static TypeInfo legacyClassToType(Class<?> clazz)
```
    Get the type information for the given legacy Java class.
    
    参数:
    
    clazz - the Java class
    
    返回:
    
    the value type, or null if not supported

类 LegacyDateTimeUtils

字段概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

PROLEPTIC_GREGORIAN_CHANGE

UTC

方法详细资料

fromDate

fromTime

fromTimestamp

fromTimestamp

dateValueFromLocalMillis

nanosFromLocalMillis

toDate

toTime

toTimestamp

getMillis

getTimeZoneOffsetMillis

legacyObjectToValue

valueToLegacyType

legacyClassToType