org.apache.derbyTesting.functionTests.tests.lang

Class SequenceGeneratorTest.T_SequenceUpdater

java.lang.Object

org.apache.derby.impl.sql.catalog.SequenceUpdater

org.apache.derbyTesting.functionTests.tests.lang.SequenceGeneratorTest.T_SequenceUpdater

All Implemented Interfaces:

org.apache.derby.iapi.services.cache.Cacheable

Enclosing class:

SequenceGeneratorTest

public static final class SequenceGeneratorTest.T_SequenceUpdater
extends org.apache.derby.impl.sql.catalog.SequenceUpdater

Machine for testing sequence generators standalone.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.derby.impl.sql.catalog.SequenceUpdater

org.apache.derby.impl.sql.catalog.SequenceUpdater.SyssequenceUpdater

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.Long	_valueOnDisk

Fields inherited from class org.apache.derby.impl.sql.catalog.SequenceUpdater

_dd, _sequenceGenerator, _uuidString

Constructor Summary

Constructors

Constructor and Description
T_SequenceUpdater(java.lang.Long currentValue, boolean canCycle, long increment, long maxValue, long minValue, long restartValue)

Method Summary

Modifier and Type	Method and Description
protected org.apache.derby.impl.sql.catalog.SequenceGenerator	createSequenceGenerator(org.apache.derby.iapi.store.access.TransactionController readOnlyTC)
long	getCurrentValueAndAdvance()
java.lang.Long	getValueOnDisk()
boolean	updateCurrentValueOnDisk(java.lang.Long oldValue, java.lang.Long newValue)
protected boolean	updateCurrentValueOnDisk(org.apache.derby.iapi.store.access.TransactionController tc, java.lang.Long oldValue, java.lang.Long newValue, boolean wait)

Methods inherited from class org.apache.derby.impl.sql.catalog.SequenceUpdater

clean, clearIdentity, createIdentity, getCurrentValueAndAdvance, getIdentity, isDirty, makePreallocator, peekAtCurrentValue, setIdentity, tooMuchContentionException

Methods inherited from class java.lang.Object

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

Field Detail

_valueOnDisk

private java.lang.Long _valueOnDisk

Constructor Detail

T_SequenceUpdater

public T_SequenceUpdater(java.lang.Long currentValue,
                         boolean canCycle,
                         long increment,
                         long maxValue,
                         long minValue,
                         long restartValue)

Method Detail

getValueOnDisk

public java.lang.Long getValueOnDisk()

getCurrentValueAndAdvance

public long getCurrentValueAndAdvance()
                               throws java.lang.Exception

Throws:

java.lang.Exception

createSequenceGenerator

protected org.apache.derby.impl.sql.catalog.SequenceGenerator createSequenceGenerator(org.apache.derby.iapi.store.access.TransactionController readOnlyTC)

Specified by:

createSequenceGenerator in class org.apache.derby.impl.sql.catalog.SequenceUpdater

updateCurrentValueOnDisk

protected boolean updateCurrentValueOnDisk(org.apache.derby.iapi.store.access.TransactionController tc,
                                           java.lang.Long oldValue,
                                           java.lang.Long newValue,
                                           boolean wait)

Specified by:

updateCurrentValueOnDisk in class org.apache.derby.impl.sql.catalog.SequenceUpdater

updateCurrentValueOnDisk

public boolean updateCurrentValueOnDisk(java.lang.Long oldValue,
                                        java.lang.Long newValue)

Overrides:

updateCurrentValueOnDisk in class org.apache.derby.impl.sql.catalog.SequenceUpdater