public final class SQLTime extends DataType implements DateTimeDataValue
Time is stored as two ints. The first int represents hour, minute, second and the second represents fractional seconds (currently 0 since we don't support time precision) encodedTime = -1 indicates null PERFORMANCE OPTIMIZATION: The java.sql.Time object is only instantiated on demand for performance reasons.
Modifier and Type | Field and Description |
---|---|
private static java.lang.String[] |
AM_PM |
private static char[] |
ANY_SEPARATOR |
private static int |
BASE_MEMORY_USAGE |
private int |
encodedTime |
private int |
encodedTimeFraction |
private static char[] |
END_OF_STRING |
private static char |
IBM_EUR_SEPARATOR |
private static char[] |
IBM_EUR_SEPARATOR_OR_END |
(package private) static char |
JIS_SEPARATOR |
private static char[] |
US_OR_JIS_MINUTE_END |
DAY_FIELD, DAY_INTERVAL, FRAC_SECOND_INTERVAL, HOUR_FIELD, HOUR_INTERVAL, MINUTE_FIELD, MINUTE_INTERVAL, MONTH_FIELD, MONTH_INTERVAL, QUARTER_INTERVAL, SECOND_FIELD, SECOND_INTERVAL, WEEK_INTERVAL, YEAR_FIELD, YEAR_INTERVAL
UNKNOWN_LOGICAL_LENGTH
ORDER_OP_EQUALS, ORDER_OP_GREATEROREQUALS, ORDER_OP_GREATERTHAN, ORDER_OP_LESSOREQUALS, ORDER_OP_LESSTHAN
Modifier | Constructor and Description |
---|---|
|
SQLTime()
no-arg constructor required by Formattable
|
private |
SQLTime(int encodedTime,
int encodedTimeFraction) |
|
SQLTime(java.lang.String timeStr,
boolean isJdbcEscape,
LocaleFinder localeFinder)
Construct a time from a string.
|
|
SQLTime(java.lang.String timeStr,
boolean isJdbcEscape,
LocaleFinder localeFinder,
java.util.Calendar cal)
Construct a time from a string.
|
|
SQLTime(java.sql.Time value) |
Modifier and Type | Method and Description |
---|---|
DataValueDescriptor |
cloneValue(boolean forceMaterialization)
Clone this DataValueDescriptor.
|
int |
compare(DataValueDescriptor other)
Orderable interface
|
boolean |
compare(int op,
DataValueDescriptor other,
boolean orderedNulls,
boolean unknownRV)
Compare this Orderable with a given Orderable for the purpose of
qualification and sorting.
|
(package private) static int |
computeEncodedTime(java.util.Calendar cal)
Calculate the encoded time from a Calendar object
encoded time is hour << 16 + min << 8 + sec
this function is also used by SQLTimestamp
|
private int |
computeEncodedTime(java.util.Date value)
Compute encoded time value
Time is represented by hour << 16 + minute << 8 + seconds
|
(package private) static int |
computeEncodedTime(java.util.Date value,
java.util.Calendar currentCal) |
(package private) static int |
computeEncodedTime(int hour,
int minute,
int second) |
protected static java.lang.String |
encodedTimeToString(int encodedTime)
Get the String version from the encodedTime.
|
int |
estimateMemoryUsage()
Estimate the memory usage in bytes of the data value and the overhead of the class.
|
NumberDataValue |
getDate(NumberDataValue result)
Get the day of the month.
|
(package private) int |
getEncodedTime() |
protected static int |
getHour(int encodedTime)
Get the encoded hour value (may be different than hour value for
current timezone if value encoded in a different timezone)
|
NumberDataValue |
getHours(NumberDataValue result)
Get the hour of the day out of a time or timestamp.
|
int |
getLength()
Gets the length of the data value.
|
protected static int |
getMinute(int encodedTime)
Get the encoded minute value (may be different than the minute value for
current timezone if value encoded in a different timezone)
|
NumberDataValue |
getMinutes(NumberDataValue result)
Get the minute of the hour out of a time or timestamp.
|
NumberDataValue |
getMonth(NumberDataValue result)
Get the month number out of a date.
|
DataValueDescriptor |
getNewNull()
Get a new null value of the same type as this data value.
|
java.lang.Object |
getObject()
Gets the value in the data value descriptor as a int.
|
protected static int |
getSecond(int encodedTime)
Get the encoded second value (may be different than the second value for
current timezone if value encoded in a different timezone)
|
NumberDataValue |
getSeconds(NumberDataValue result)
Get the second of the minute out of a time or timestamp.
|
java.lang.String |
getString()
Gets the value in the data value descriptor as a String.
|
java.sql.Time |
getTime(java.util.Calendar cal)
Get the time value
Since this is a JDBC object we use the JDBC definition
we use the JDBC definition, see JDBC API Tutorial and Reference
section 47.3.12
Date is set to Jan. 1, 1970
|
(package private) static java.sql.Time |
getTime(java.util.Calendar cal,
int encodedTime,
int nanos)
Get a java.sql.Time object from an encoded time
and nano-second value.
|
java.sql.Timestamp |
getTimestamp(java.util.Calendar cal)
Convert a SQL TIME to a JDBC java.sql.Timestamp.
|
int |
getTypeFormatId()
Return my format identifier.
|
java.lang.String |
getTypeName()
Get the SQL name of the datatype
|
NumberDataValue |
getYear(NumberDataValue result)
Get the year number out of a date.
|
int |
hashCode() |
boolean |
isNull()
Check if the value is null.
|
(package private) NumberDataValue |
nullValueInt() |
private void |
parseTime(java.util.Date value) |
private void |
parseTime(java.lang.String timeStr,
boolean isJdbcEscape,
LocaleFinder localeFinder,
java.util.Calendar cal) |
void |
readExternal(java.io.ObjectInput in) |
void |
restoreToNull()
Restore this object to its (SQL)null value.
|
protected void |
setFrom(DataValueDescriptor theValue)
Set the value of this DataValueDescriptor based on the value
of the specified DataValueDescriptor.
|
void |
setInto(java.sql.PreparedStatement ps,
int position)
Adding this method to ensure that super class' setInto method doesn't get called
that leads to the violation of JDBC spec( untyped nulls ) when batching is turned on.
|
(package private) void |
setObject(java.lang.Object theValue)
Set the value from a correctly typed Time object.
|
(package private) static void |
setTimeInCalendar(java.util.Calendar cal,
int encodedTime)
Set the time portion of a date-time value into
the passed in Calendar object from its encodedTime
value.
|
void |
setValue(java.lang.String theValue)
Set the value of this DataValueDescriptor.
|
void |
setValue(java.sql.Time value,
java.util.Calendar cal)
Set the value of this DataValueDescriptor.
|
void |
setValue(java.sql.Timestamp value,
java.util.Calendar cal)
Set the value of this DataValueDescriptor.
|
void |
setValueFromResultSet(java.sql.ResultSet resultSet,
int colNumber,
boolean isNullable)
Set the value based on the value for the specified DataValueDescriptor
from the specified ResultSet.
|
DateTimeDataValue |
timestampAdd(int intervalType,
NumberDataValue intervalCount,
java.sql.Date currentDate,
DateTimeDataValue resultHolder)
Add a number of intervals to a datetime value.
|
NumberDataValue |
timestampDiff(int intervalType,
DateTimeDataValue time1,
java.sql.Date currentDate,
NumberDataValue resultHolder)
Finds the difference between two datetime values as a number of intervals.
|
(package private) static void |
timeToString(int hour,
int minute,
int second,
java.lang.StringBuffer sb)
Convert a time to a JDBC escape format string
|
java.lang.String |
toString() |
private SQLTimestamp |
toTimestamp(java.sql.Date currentDate) |
int |
typePrecedence()
Each built-in type in JSQL has a precedence.
|
void |
writeExternal(java.io.ObjectOutput out) |
checkHostVariable, cloneHolder, coalesce, compare, compare, compareTo, dataTypeConversion, equals, equals, flip, genericSetObject, getBoolean, getByte, getBytes, getDate, getDouble, getFloat, getInt, getLong, getShort, getStream, getTraceString, getTypeName, greaterOrEquals, greaterThan, hasStream, in, invalidFormat, isNotNull, isNullOp, lessOrEquals, lessThan, normalize, notEquals, outOfRange, readExternalFromArray, recycle, setBigDecimal, setInto, setObjectForCast, setToNull, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, throwLangSetMismatch, throwLangSetMismatch, typeToBigDecimal
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
checkHostVariable, cloneHolder, coalesce, compare, compare, equals, getBoolean, getByte, getBytes, getDate, getDouble, getFloat, getInt, getLong, getShort, getStream, getTraceString, greaterOrEquals, greaterThan, hasStream, in, isNotNull, isNullOp, lessOrEquals, lessThan, normalize, notEquals, readExternalFromArray, recycle, setBigDecimal, setInto, setObjectForCast, setToNull, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, typeToBigDecimal
private int encodedTime
private int encodedTimeFraction
private static final int BASE_MEMORY_USAGE
private static final char IBM_EUR_SEPARATOR
private static final char[] IBM_EUR_SEPARATOR_OR_END
static final char JIS_SEPARATOR
private static final char[] US_OR_JIS_MINUTE_END
private static final char[] ANY_SEPARATOR
private static final java.lang.String[] AM_PM
private static final char[] END_OF_STRING
public SQLTime()
public SQLTime(java.sql.Time value) throws StandardException
StandardException
private SQLTime(int encodedTime, int encodedTimeFraction)
public SQLTime(java.lang.String timeStr, boolean isJdbcEscape, LocaleFinder localeFinder) throws StandardException
StandardException
- if the syntax is invalid or the value is
out of rangepublic SQLTime(java.lang.String timeStr, boolean isJdbcEscape, LocaleFinder localeFinder, java.util.Calendar cal) throws StandardException
StandardException
- if the syntax is invalid or the value is
out of rangepublic int estimateMemoryUsage()
DataValueDescriptor
estimateMemoryUsage
in interface DataValueDescriptor
public java.lang.String getString()
DataValueDescriptor
getString
in interface DataValueDescriptor
int getEncodedTime()
public java.sql.Timestamp getTimestamp(java.util.Calendar cal)
getTimestamp
in interface DataValueDescriptor
getTimestamp
in class DataType
cal
- calendar for object creationpublic java.lang.Object getObject()
DataType
getObject
in interface DataValueDescriptor
getObject
in class DataType
public int getLength()
DataValueDescriptor
getLength
in interface DataValueDescriptor
public java.lang.String getTypeName()
DataValueDescriptor
getTypeName
in interface DataValueDescriptor
public int getTypeFormatId()
getTypeFormatId
in interface TypedFormat
TypedFormat.getTypeFormatId()
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException
writeExternal
in interface java.io.Externalizable
java.io.IOException
- error writing datapublic void readExternal(java.io.ObjectInput in) throws java.io.IOException
readExternal
in interface java.io.Externalizable
java.io.IOException
- Thrown on error reading the objectExternalizable.readExternal(java.io.ObjectInput)
public DataValueDescriptor cloneValue(boolean forceMaterialization)
DataValueDescriptor
Even though the objects can be modified independently regardless of the
value of forceMaterialization
, both the clone and the
original may be dependent on the store state if
forceMaterialization
is set to false
. An example is if
you need to access the value you just read using cloneValue
after the current transaction has ended, or after the source result set
has been closed.
cloneValue
in interface DataValueDescriptor
forceMaterialization
- any streams representing the data value will
be materialized if true
, the data value will be kept as a
stream if possible if false
DataValueDescriptor
with the same initial
value as this.DataValueDescriptor.cloneValue(boolean)
public DataValueDescriptor getNewNull()
DataValueDescriptor
getNewNull
in interface DataValueDescriptor
DataValueDescriptor.getNewNull()
public void restoreToNull()
Storable
restoreToNull
in interface Storable
Storable.restoreToNull()
public void setValueFromResultSet(java.sql.ResultSet resultSet, int colNumber, boolean isNullable) throws java.sql.SQLException, StandardException
DataValueDescriptor
setValueFromResultSet
in interface DataValueDescriptor
resultSet
- The specified ResultSet.colNumber
- The 1-based column # into the resultSet.isNullable
- Whether or not the column is nullable
(No need to call wasNull() if not)java.sql.SQLException
- Thrown on errorStandardException
- Thrown on errorDataValueDescriptor.setValueFromResultSet(java.sql.ResultSet, int, boolean)
public int compare(DataValueDescriptor other) throws StandardException
compare
in interface DataValueDescriptor
other
- The Orderable to compare this one to.StandardException
- thrown on failureOrderable
public boolean compare(int op, DataValueDescriptor other, boolean orderedNulls, boolean unknownRV) throws StandardException
DataValueDescriptor
compare
in interface DataValueDescriptor
compare
in class DataType
op
- Orderable.ORDER_OP_EQUALS means do an = comparison.
Orderable.ORDER_OP_LESSTHAN means compare this < other.
Orderable.ORDER_OP_LESSOREQUALS means compare this <= other.other
- The DataValueDescriptor to compare this one to.orderedNulls
- True means to treat nulls as ordered values,
that is, treat SQL null as equal to null, and less
than all other values.
False means to treat nulls as unknown values,
that is, the result of any comparison with a null
is the UNKNOWN truth value.unknownRV
- The return value to use if the result of the
comparison is the UNKNOWN truth value. In other
words, if orderedNulls is false, and a null is
involved in the comparison, return unknownRV.
This parameter is not used orderedNulls is true.StandardException
- thrown on errorprivate void parseTime(java.util.Date value) throws StandardException
StandardException
private void parseTime(java.lang.String timeStr, boolean isJdbcEscape, LocaleFinder localeFinder, java.util.Calendar cal) throws StandardException
StandardException
void setObject(java.lang.Object theValue) throws StandardException
setObject
in class DataType
StandardException
protected void setFrom(DataValueDescriptor theValue) throws StandardException
DataType
setFrom
in class DataType
theValue
- The DataValueDescriptor that holds the value to
which we want to set this DataValueDescriptor's value.StandardException
public void setValue(java.sql.Time value, java.util.Calendar cal) throws StandardException
DataType
setValue
in interface DataValueDescriptor
setValue
in class DataType
value
- The Time value to set this DataValueDescriptor tocal
- The time zone from the calendar is used to construct the database time valueStandardException
- thrown on failure.DataValueDescriptor.setValue(int)
public void setValue(java.sql.Timestamp value, java.util.Calendar cal) throws StandardException
DataType
setValue
in interface DataValueDescriptor
setValue
in class DataType
value
- The Timestamp value to set this DataValueDescriptor tocal
- The time zone from the calendar is used to construct the database timestamp valueStandardException
- thrown on failure.DataValueDescriptor.setValue(int)
public void setValue(java.lang.String theValue) throws StandardException
DataType
setValue
in interface DataValueDescriptor
setValue
in class DataType
theValue
- The BigDecimal value to set this DataValueDescriptor toStandardException
NumberDataValue nullValueInt()
public NumberDataValue getYear(NumberDataValue result) throws StandardException
DateTimeDataValue
getYear
in interface DateTimeDataValue
result
- The result of the previous call to this method, null
if not called yet.StandardException
- Thrown on errorDateTimeDataValue.getYear(org.apache.derby.iapi.types.NumberDataValue)
public NumberDataValue getMonth(NumberDataValue result) throws StandardException
DateTimeDataValue
getMonth
in interface DateTimeDataValue
result
- The result of the previous call to this method, null
if not called yet.StandardException
- Thrown on errorDateTimeDataValue.getMonth(org.apache.derby.iapi.types.NumberDataValue)
public NumberDataValue getDate(NumberDataValue result) throws StandardException
DateTimeDataValue
getDate
in interface DateTimeDataValue
result
- The result of the previous call to this method, null
if not called yet.StandardException
- Thrown on errorDateTimeDataValue.getDate(org.apache.derby.iapi.types.NumberDataValue)
public NumberDataValue getHours(NumberDataValue result) throws StandardException
DateTimeDataValue
getHours
in interface DateTimeDataValue
result
- The result of the previous call to this method, null
if not called yet.StandardException
- Thrown on errorDateTimeDataValue.getHours(org.apache.derby.iapi.types.NumberDataValue)
public NumberDataValue getMinutes(NumberDataValue result) throws StandardException
DateTimeDataValue
getMinutes
in interface DateTimeDataValue
result
- The result of the previous call to this method, null
if not called yet.StandardException
- Thrown on errorDateTimeDataValue.getMinutes(org.apache.derby.iapi.types.NumberDataValue)
public NumberDataValue getSeconds(NumberDataValue result) throws StandardException
DateTimeDataValue
getSeconds
in interface DateTimeDataValue
result
- The result of the previous call to this method, null
if not called yet.StandardException
- Thrown on errorDateTimeDataValue.getSeconds(org.apache.derby.iapi.types.NumberDataValue)
public java.lang.String toString()
toString
in class java.lang.Object
public int hashCode()
hashCode
in class java.lang.Object
public int typePrecedence()
DataType
typePrecedence
in interface DataValueDescriptor
typePrecedence
in class DataType
DataValueDescriptor.typePrecedence()
public final boolean isNull()
public java.sql.Time getTime(java.util.Calendar cal)
getTime
in interface DataValueDescriptor
getTime
in class DataType
cal
- calendar for object creationstatic void setTimeInCalendar(java.util.Calendar cal, int encodedTime)
static java.sql.Time getTime(java.util.Calendar cal, int encodedTime, int nanos)
cal
- Calendar to use for conversionencodedTime
- Derby encoded time valuenanos
- number of nano-seconds.protected static int getHour(int encodedTime)
protected static int getMinute(int encodedTime)
protected static int getSecond(int encodedTime)
static int computeEncodedTime(java.util.Calendar cal) throws StandardException
cal
- calendar with time setStandardException
- if the time is not in the DB2 rangestatic int computeEncodedTime(int hour, int minute, int second) throws StandardException
StandardException
static void timeToString(int hour, int minute, int second, java.lang.StringBuffer sb)
hour
- minute
- second
- sb
- The resulting string is appended to this StringBufferprotected static java.lang.String encodedTimeToString(int encodedTime)
private int computeEncodedTime(java.util.Date value) throws StandardException
StandardException
static int computeEncodedTime(java.util.Date value, java.util.Calendar currentCal) throws StandardException
StandardException
public void setInto(java.sql.PreparedStatement ps, int position) throws java.sql.SQLException, StandardException
setInto
in interface DataValueDescriptor
setInto
in class DataType
java.sql.SQLException
- thrown by the PreparedStatement objectStandardException
- thrown by me accessing my value.public DateTimeDataValue timestampAdd(int intervalType, NumberDataValue intervalCount, java.sql.Date currentDate, DateTimeDataValue resultHolder) throws StandardException
timestampAdd
in interface DateTimeDataValue
intervalType
- One of FRAC_SECOND_INTERVAL, SECOND_INTERVAL, MINUTE_INTERVAL, HOUR_INTERVAL,
DAY_INTERVAL, WEEK_INTERVAL, MONTH_INTERVAL, QUARTER_INTERVAL, or YEAR_INTERVALintervalCount
- The number of intervals to addcurrentDate
- Used to convert time to timestampresultHolder
- If non-null a DateTimeDataValue that can be used to hold the result. If null then
generate a new holderStandardException
private SQLTimestamp toTimestamp(java.sql.Date currentDate) throws StandardException
StandardException
public NumberDataValue timestampDiff(int intervalType, DateTimeDataValue time1, java.sql.Date currentDate, NumberDataValue resultHolder) throws StandardException
timestampDiff
in interface DateTimeDataValue
intervalType
- One of FRAC_SECOND_INTERVAL, SECOND_INTERVAL, MINUTE_INTERVAL, HOUR_INTERVAL,
DAY_INTERVAL, WEEK_INTERVAL, MONTH_INTERVAL, QUARTER_INTERVAL, or YEAR_INTERVALtime1
- currentDate
- Used to convert time to timestampresultHolder
- If non-null a NumberDataValue that can be used to hold the result. If null then
generate a new holderStandardException
Apache Derby V10.13 Internals - Copyright © 2004,2016 The Apache Software Foundation. All Rights Reserved.