er.extensions.eof

Class ERXSequence

java.lang.Object

er.extensions.eof.ERXSequence

Direct Known Subclasses:

ERXSequence.DatabaseSequence, ERXSequence.NativeDatabaseSequence

public class ERXSequence
extends Object

Simple sequence class. MT safe, but not multi instance safe (this is implemented by subclasses)

Author:

ak

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ERXSequence.DatabaseSequence Multi-instance-safe subclass of ERXSequence.
static class	ERXSequence.NativeDatabaseSequence NativeDatabaseSequence uses ERXSQLHelper.getNextValFromSequenceNamed to generate a sequence value using your database's native sequence generation scheme.
static class	ERXSequence.PrimaryKeySequence

Field Summary

Fields

Modifier and Type	Field and Description
protected long	_lastValue
protected long	_maxValue
protected Logger	log

Constructor Summary

Constructors

Constructor and Description
ERXSequence(String name)
ERXSequence(String name, long initialValue)

Method Summary

Modifier and Type	Method and Description
static ERXSequence	createDatabaseSequenceWithName(com.webobjects.eocontrol.EOEditingContext ec, String modelName, String name)
static ERXSequence	createSequenceWithName(String name, long initialValue)
protected long	increasedMaxValue(long increment)
protected long	increment()
protected long	lastValue()
protected long	maxValue()
String	name()
long	nextValue()
long	nextValue(long increment)
static void	registerSequenceWithName(ERXSequence sequence, String name)
static ERXSequence	sequenceWithName(String name)

Methods inherited from class java.lang.Object

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

Field Detail

log

protected Logger log

_lastValue

protected long _lastValue

_maxValue

protected long _maxValue

Constructor Detail

ERXSequence

public ERXSequence(String name)

ERXSequence

public ERXSequence(String name,
                   long initialValue)

Method Detail

name

public String name()

nextValue

public long nextValue()

maxValue

protected long maxValue()

nextValue

public long nextValue(long increment)

lastValue

protected long lastValue()

increasedMaxValue

protected long increasedMaxValue(long increment)

increment

protected long increment()

sequenceWithName

public static ERXSequence sequenceWithName(String name)

createSequenceWithName

public static ERXSequence createSequenceWithName(String name,
                                                 long initialValue)

createDatabaseSequenceWithName

public static ERXSequence createDatabaseSequenceWithName(com.webobjects.eocontrol.EOEditingContext ec,
                                                         String modelName,
                                                         String name)

registerSequenceWithName

public static void registerSequenceWithName(ERXSequence sequence,
                                            String name)