DerbySequenceSupport (Hibernate Javadocs)

java.lang.Object
- org.hibernate.dialect.sequence.ANSISequenceSupport
- - org.hibernate.dialect.sequence.DB2SequenceSupport
  - - org.hibernate.dialect.sequence.DerbySequenceSupport

All Implemented Interfaces:

SequenceSupport
```
public final class DerbySequenceSupport
extends DB2SequenceSupport
```
Sequence support for DerbyDialect.

Field Summary

Fields
Modifier and Type Field Description

static SequenceSupport INSTANCE

Constructor Summary

Constructors
Constructor Description

DerbySequenceSupport()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getSelectSequencePreviousValString(String sequenceName)`	Generate the select expression fragment that will retrieve the previous value of a sequence as part of another (typically DML) statement.

Methods inherited from class org.hibernate.dialect.sequence.DB2SequenceSupport
getDropSequenceString, getSequenceNextValString, getSequencePreviousValString

Methods inherited from class org.hibernate.dialect.sequence.ANSISequenceSupport
getSelectSequenceNextValString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.hibernate.dialect.sequence.SequenceSupport
getCreateSequenceString, getCreateSequenceString, getCreateSequenceStrings, getDropSequenceStrings, getFromDual, getSequenceNextValString, sometimesNeedsStartingValue, startingValue, supportsPooledSequences, supportsSequences

- Field Detail
  - INSTANCE
```
public static final SequenceSupport INSTANCE
```
- Constructor Detail
  - DerbySequenceSupport
```
public DerbySequenceSupport()
```
- Method Detail
  - getSelectSequencePreviousValString
```
public String getSelectSequencePreviousValString(String sequenceName)
                                          throws MappingException
```
    Description copied from interface: SequenceSupport
    
    Generate the select expression fragment that will retrieve the previous value of a sequence as part of another (typically DML) statement.
    This differs from SequenceSupport.getSequencePreviousValString(String) in that it must return an expression usable within another statement.
    
    Specified by:
    
    getSelectSequencePreviousValString in interface SequenceSupport
    
    Overrides:
    
    getSelectSequencePreviousValString in class DB2SequenceSupport
    
    Parameters:
    
    sequenceName - the name of the sequence
    
    Returns:
    
    The "previous value" fragment.
    
    Throws:
    
    MappingException - If sequences are not supported.