H2PkGenerator (cayenne-doc: Cayenne Documentation 4.2 API)

java.lang.Object
- org.apache.cayenne.dba.JdbcPkGenerator
- - org.apache.cayenne.dba.oracle.OraclePkGenerator
  - - org.apache.cayenne.dba.h2.H2PkGenerator

All Implemented Interfaces:

PkGenerator
```
public class H2PkGenerator
extends OraclePkGenerator
```
Default PK generator for H2 that uses sequences for PK generation.

Since:

4.0

Field Summary
- Fields inherited from class org.apache.cayenne.dba.JdbcPkGenerator
  adapter, DEFAULT_PK_CACHE_SIZE, pkCache, pkCacheSize, pkStartValue

Constructor Summary

Constructors
Modifier Constructor Description

H2PkGenerator()
Used by DI

protected H2PkGenerator(JdbcAdapter adapter)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected String`	`createSequenceString(DbEntity ent)`
`protected String`	`selectAllSequencesQuery()`
`protected String`	`selectNextValQuery(String sequenceName)`

Methods inherited from class org.apache.cayenne.dba.oracle.OraclePkGenerator
createAutoPk, createAutoPkStatements, dropAutoPk, dropAutoPkStatements, dropSequenceString, getExistingSequences, getSequencePrefix, longPkFromDatabase, pkCacheSize, sequenceName

Methods inherited from class org.apache.cayenne.dba.JdbcPkGenerator
autoPkTableExists, dropAutoPkString, generatePk, getAdapter, getPkCacheSize, pkCreateString, pkDeleteString, pkSelectString, pkTableCreateString, pkUpdateString, reset, runUpdate, setAdapter, setPkCacheSize

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

- Constructor Detail
  - H2PkGenerator
```
public H2PkGenerator()
```
    Used by DI
    
    Since:
    
    4.1
  - H2PkGenerator
```
protected H2PkGenerator(JdbcAdapter adapter)
```
- Method Detail
  - createSequenceString
```
protected String createSequenceString(DbEntity ent)
```
    Overrides:
    
    createSequenceString in class OraclePkGenerator
  - selectNextValQuery
```
protected String selectNextValQuery(String sequenceName)
```
    Overrides:
    
    selectNextValQuery in class OraclePkGenerator
  - selectAllSequencesQuery
```
protected String selectAllSequencesQuery()
```
    Overrides:
    
    selectAllSequencesQuery in class OraclePkGenerator