Package org.datanucleus.store.rdbms.identifier

Class JPOXIdentifierFactory

java.lang.Object

org.datanucleus.store.rdbms.identifier.AbstractIdentifierFactory

org.datanucleus.store.rdbms.identifier.DNIdentifierFactory

org.datanucleus.store.rdbms.identifier.JPOXIdentifierFactory

All Implemented Interfaces:

IdentifierFactory

public class JPOXIdentifierFactory
extends DNIdentifierFactory

Factory that creates immutable instances of DatastoreIdentifier for mapped datastores. Provides the "JPOX" naming strategy like with DNIdentifierFactory except this uses a consistent hashing process to match JPOX.

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.identifier.DNIdentifierFactory

tablePrefix, tableSuffix

Fields inherited from class org.datanucleus.store.rdbms.identifier.AbstractIdentifierFactory

candidates, CASE_LOWER, CASE_PRESERVE, CASE_UPPER, clr, columns, dba, defaultCatalogName, defaultSchemaName, foreignkeys, indexes, namingCase, namingFactory, primarykeys, quoteString, references, sequences, tables, wordSeparator

Fields inherited from interface org.datanucleus.store.rdbms.identifier.IdentifierFactory

PROPERTY_DEFAULT_CATALOG, PROPERTY_DEFAULT_SCHEMA, PROPERTY_NAMING_FACTORY, PROPERTY_REQUIRED_CASE, PROPERTY_TABLE_PREFIX, PROPERTY_TABLE_SUFFIX, PROPERTY_WORD_SEPARATOR

Constructor Summary

Constructors

Constructor	Description
JPOXIdentifierFactory(DatastoreAdapter dba, org.datanucleus.ClassLoaderResolver clr, Map props)

Method Summary

Modifier and Type	Method	Description
protected String	truncate(String identifier, int length)	Method to truncate an identifier to fit within the specified identifier length.

Methods inherited from class org.datanucleus.store.rdbms.identifier.DNIdentifierFactory

generateIdentifierNameForJavaName, getColumnIdentifierSuffix, newAdapterIndexFieldIdentifier, newDiscriminatorFieldIdentifier, newForeignKeyFieldIdentifier, newIndexFieldIdentifier, newJoinTableFieldIdentifier, newReferenceFieldIdentifier, newTableIdentifier, newTableIdentifier, newVersionFieldIdentifier

Methods inherited from class org.datanucleus.store.rdbms.identifier.AbstractIdentifierFactory

getDatastoreAdapter, getIdentifierInAdapterCase, getIdentifierNamePartsFromName, getIdentifierTruncatedToAdapterColumnLength, getNamingCase, getWordSeparator, newCandidateKeyIdentifier, newColumnIdentifier, newColumnIdentifier, newForeignKeyIdentifier, newIdentifier, newIdentifier, newIndexIdentifier, newPrimaryKeyIdentifier, newSequenceIdentifier, newTableIdentifier, newTableIdentifier, setCatalogSchemaForTable

Methods inherited from class java.lang.Object

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

Constructor Detail

JPOXIdentifierFactory

public JPOXIdentifierFactory(DatastoreAdapter dba,
                             org.datanucleus.ClassLoaderResolver clr,
                             Map props)

Method Detail

truncate

protected String truncate(String identifier,
                          int length)

Method to truncate an identifier to fit within the specified identifier length. If truncation is necessary will use a 2 char hashcode (at the end) to attempt to create uniqueness.

Overrides:

truncate in class AbstractIdentifierFactory

Parameters:

identifier - The identifier

length - The (max) length to use

Returns:

The truncated identifier.