Class PostgresPkGenerator

java.lang.Object

org.apache.cayenne.dba.JdbcPkGenerator

org.apache.cayenne.dba.SequencePkGenerator

org.apache.cayenne.dba.postgres.PostgresPkGenerator

All Implemented Interfaces:

PkGenerator

public class PostgresPkGenerator
extends SequencePkGenerator

Default PK generator for PostgreSQL that uses sequences for PK generation.

Field Summary

Fields inherited from class JdbcPkGenerator

adapter, DEFAULT_PK_CACHE_SIZE, pkCache, pkCacheSize, pkStartValue

Constructor Summary

Constructors

Constructor	Description
PostgresPkGenerator(JdbcAdapter adapter)

Method Summary

Modifier and Type	Method	Description
protected String	createSequenceString(DbEntity ent)
protected String	selectAllSequencesQuery()	Returns a database-specific query that lists the names of all existing sequences.
protected String	selectNextValQuery(String sequenceName)	Returns a database-specific query to fetch the next value of the named sequence.

Methods inherited from class SequencePkGenerator

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

Methods inherited from class JdbcPkGenerator

autoPkTableExists, dropAutoPkString, generatePk, getAdapter, getPkCacheSize, pkCreateString, pkDeleteString, pkSelectString, pkTableCreateString, pkUpdateString, reset, runUpdate, setPkCacheSize

Methods inherited from class Object

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

Methods inherited from interface PkGenerator

generatePk

Constructor Details

PostgresPkGenerator

public PostgresPkGenerator(JdbcAdapter adapter)

Method Details

createSequenceString

protected String createSequenceString(DbEntity ent)

Overrides:

createSequenceString in class SequencePkGenerator

selectNextValQuery

protected String selectNextValQuery(String sequenceName)

Description copied from class: SequencePkGenerator

Returns a database-specific query to fetch the next value of the named sequence.

Specified by:

selectNextValQuery in class SequencePkGenerator

selectAllSequencesQuery

protected String selectAllSequencesQuery()

Description copied from class: SequencePkGenerator

Returns a database-specific query that lists the names of all existing sequences.

Specified by:

selectAllSequencesQuery in class SequencePkGenerator