Package org.apache.cayenne.dba.derby

Class DerbyPkGenerator

java.lang.Object

org.apache.cayenne.dba.JdbcPkGenerator

org.apache.cayenne.dba.oracle.OraclePkGenerator

org.apache.cayenne.dba.derby.DerbyPkGenerator

All Implemented Interfaces:

PkGenerator

public class DerbyPkGenerator
extends OraclePkGenerator

PK generator for Derby that uses sequences.

Since:

4.0 (old one used AUTO_PK_SUPPORT table)

Field Summary

Fields inherited from class org.apache.cayenne.dba.JdbcPkGenerator

adapter, DEFAULT_PK_CACHE_SIZE, pkCache, pkCacheSize, pkStartValue

Constructor Summary

Constructors

Constructor	Description
DerbyPkGenerator()	Used by DI

Method Summary

Modifier and Type	Method	Description
protected String	createSequenceString(DbEntity entity)
protected String	dropSequenceString(DbEntity entity)	Returns a SQL string needed to drop any database objects associated with automatic primary key generation process for a specific DbEntity.
protected String	selectAllSequencesQuery()
protected String	selectNextValQuery(String pkGeneratingSequenceName)
protected String	sequenceName(DbEntity entity)	Returns expected primary key sequence name for a DbEntity.

Methods inherited from class org.apache.cayenne.dba.oracle.OraclePkGenerator

createAutoPk, createAutoPkStatements, dropAutoPk, dropAutoPkStatements, getExistingSequences, getSequencePrefix, longPkFromDatabase, pkCacheSize

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 Details

DerbyPkGenerator

public DerbyPkGenerator()

Used by DI

Since:

4.1

Method Details

sequenceName

protected String sequenceName(DbEntity entity)

Description copied from class: OraclePkGenerator

Returns expected primary key sequence name for a DbEntity.

Overrides:

sequenceName in class OraclePkGenerator

selectNextValQuery

protected String selectNextValQuery(String pkGeneratingSequenceName)

Overrides:

selectNextValQuery in class OraclePkGenerator

selectAllSequencesQuery

protected String selectAllSequencesQuery()

Overrides:

selectAllSequencesQuery in class OraclePkGenerator

dropSequenceString

protected String dropSequenceString(DbEntity entity)

Description copied from class: OraclePkGenerator

Returns a SQL string needed to drop any database objects associated with automatic primary key generation process for a specific DbEntity.

Overrides:

dropSequenceString in class OraclePkGenerator

createSequenceString

protected String createSequenceString(DbEntity entity)

Overrides:

createSequenceString in class OraclePkGenerator