org.h2.command.ddl

类 SequenceOptions

java.lang.Object

org.h2.command.ddl.SequenceOptions

public class SequenceOptions
extends Object

Sequence options.

构造器概要

构造器

构造器和说明
SequenceOptions() Creates new instance of sequence options.
SequenceOptions(Sequence oldSequence, TypeInfo dataType) Creates new instance of sequence options.

方法概要

限定符和类型	方法和说明
long[]	getBounds()
static long[]	getBounds(TypeInfo dataType) Get the bounds (min, max) of a data type.
Long	getCacheSize(SessionLocal session) Gets cache size.
Sequence.Cycle	getCycle() Gets cycle option.
TypeInfo	getDataType()
Long	getIncrement(SessionLocal session) Gets increment value.
Long	getMaxValue(Sequence sequence, SessionLocal session) Gets max value.
Long	getMinValue(Sequence sequence, SessionLocal session) Gets min value.
Long	getRestartValue(SessionLocal session, long startValue) Gets restart value.
Long	getStartValue(SessionLocal session) Gets start value.
void	setCacheSize(Expression cacheSize) Sets cache size.
void	setCycle(Sequence.Cycle cycle) Sets cycle option.
void	setDataType(TypeInfo dataType)
void	setIncrement(Expression increment) Sets increment value expression.
void	setMaxValue(Expression maxValue) Sets max value expression.
void	setMinValue(Expression minValue) Sets min value expression.
void	setRestartValue(Expression restart) Sets restart value expression, or ValueExpression.DEFAULT.
void	setStartValue(Expression start) Sets start value expression.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

SequenceOptions

public SequenceOptions()

Creates new instance of sequence options.

SequenceOptions

public SequenceOptions(Sequence oldSequence,
                       TypeInfo dataType)

Creates new instance of sequence options.

参数:

oldSequence - the sequence to copy options from

dataType - the new data type

方法详细资料

getDataType

public TypeInfo getDataType()

setDataType

public void setDataType(TypeInfo dataType)

getStartValue

public Long getStartValue(SessionLocal session)

Gets start value.

参数:

session - The session to calculate the value.

返回:

start value or null if value is not defined.

setStartValue

public void setStartValue(Expression start)

Sets start value expression.

参数:

start - START WITH value expression.

getRestartValue

public Long getRestartValue(SessionLocal session,
                            long startValue)

Gets restart value.

参数:

session - the session to calculate the value

startValue - the start value to use if restart without value is specified

返回:

restart value or null if value is not defined.

setRestartValue

public void setRestartValue(Expression restart)

Sets restart value expression, or ValueExpression.DEFAULT.

参数:

restart - RESTART WITH value expression, or ValueExpression.DEFAULT for simple RESTART

getIncrement

public Long getIncrement(SessionLocal session)

Gets increment value.

参数:

session - The session to calculate the value.

返回:

increment value or null if value is not defined.

setIncrement

public void setIncrement(Expression increment)

Sets increment value expression.

参数:

increment - INCREMENT BY value expression.

getMaxValue

public Long getMaxValue(Sequence sequence,
                        SessionLocal session)

Gets max value.

参数:

sequence - the sequence to get default max value.

session - The session to calculate the value.

返回:

max value when the MAXVALUE expression is set, otherwise returns default max value.

setMaxValue

public void setMaxValue(Expression maxValue)

Sets max value expression.

参数:

maxValue - MAXVALUE expression.

getMinValue

public Long getMinValue(Sequence sequence,
                        SessionLocal session)

Gets min value.

参数:

sequence - the sequence to get default min value.

session - The session to calculate the value.

返回:

min value when the MINVALUE expression is set, otherwise returns default min value.

setMinValue

public void setMinValue(Expression minValue)

Sets min value expression.

参数:

minValue - MINVALUE expression.

getBounds

public long[] getBounds()

getBounds

public static long[] getBounds(TypeInfo dataType)

Get the bounds (min, max) of a data type.

参数:

dataType - the data type

返回:

the bounds (an array with 2 elements)

getCycle

public Sequence.Cycle getCycle()

Gets cycle option.

返回:

cycle option value or null if is not defined.

setCycle

public void setCycle(Sequence.Cycle cycle)

Sets cycle option.

参数:

cycle - option value.

getCacheSize

public Long getCacheSize(SessionLocal session)

Gets cache size.

参数:

session - The session to calculate the value.

返回:

cache size or null if value is not defined.

setCacheSize

public void setCacheSize(Expression cacheSize)

Sets cache size.

参数:

cacheSize - cache size.