com.webobjects.jdbcadaptor

Class PostgresqlPlugIn

java.lang.Object

com.webobjects.jdbcadaptor.JDBCPlugIn

com.webobjects.jdbcadaptor.PostgresqlPlugIn

public class PostgresqlPlugIn
extends JDBCPlugIn

WO runtime plugin with support for Postgresql.

Author:

ak, giorgio_v

Nested Class Summary

Nested classes/interfaces inherited from class com.webobjects.jdbcadaptor.JDBCPlugIn

JDBCPlugIn.LobEntry

Field Summary

Fields inherited from class com.webobjects.jdbcadaptor.JDBCPlugIn

_adaptor, _expressionClass, _expressionFactory, _pkTableName, _subprotocolRegistry, _syncFactory, DefaultPlugInClassName, DefaultPlugInSuffix

Constructor Summary

Constructors

Constructor and Description
PostgresqlPlugIn(JDBCAdaptor adaptor) Designated constructor.

Method Summary

Modifier and Type	Method and Description
protected static String	_sequenceNameForEntity(EOEntity entity) Utility method that returns the name of the sequence associated with entity
EOSynchronizationFactory	createSynchronizationFactory() Returns a "pure java" synchronization factory.
String	databaseProductName()
String	defaultDriverName()
Class<? extends JDBCExpression>	defaultExpressionClass() Expression class to create.
NSDictionary<String,Object>	jdbcInfo() This is usually extracted from the the database using JDBC, but this is really inconvenient for users who are trying to generate SQL at some.
String	name() WebObjects 5.4's version of JDBCAdaptor will use this in order to assemble the name of the prototype to use when it loads models.
NSArray<NSDictionary<String,Object>>	newPrimaryKeys(int count, EOEntity entity, JDBCChannel channel) Overrides the parent implementation to provide a more efficient mechanism for generating primary keys, while generating the primary key support on the fly.
protected boolean	shouldUseBundledJdbcInfo() This method returns true if the connection URL for the database has a special flag on it which indicates to the system that the jdbcInfo which has been bundled into the plugin is acceptable to use in place of actually going to the database and getting it.

Methods inherited from class com.webobjects.jdbcadaptor.JDBCPlugIn

_attributeForPath, _couldIgnoreException, _relationshipForPath, _takeValueForKeyPath, adaptor, assignTypeForAttribute, canDescribeStoredProcedure, connectionPropertiesForConnectionDictionary, connectionURL, createAttributeForRow, createExpressionFactory, createSchemaSynchronizationFactory, databaseInformation, expressionFactory, fetchBLOB, fetchCLOB, isDroppedConnectionException, isPseudoColumnName, jdbcTypeForUnknownExternalType, newPrimaryKeySelectString, plugInNameForURL, plugInValueForValue, primaryKeyLockString, primaryKeyTableCreateString, primaryKeyTableName, removePlugInNameForSubprotocol, schemaNameForEntity, schemaSynchronizationFactory, setPlugInNameForSubprotocol, sqlStatementForGettingProcedureNames, sqlStatementForGettingTableNames, sqlStatementForTableNamed, storedProcedureCatalogPattern, storedProcedureNamed, storedProcedureSchemaPattern, synchronizationFactory, tableTypes, updateLOBs, wildcardPatternForAttributes, wildcardPatternForSchema, wildcardPatternForTables

Methods inherited from class java.lang.Object

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

Constructor Detail

PostgresqlPlugIn

public PostgresqlPlugIn(JDBCAdaptor adaptor)

Designated constructor.

Method Detail

defaultDriverName

public String defaultDriverName()

Overrides:

defaultDriverName in class JDBCPlugIn

databaseProductName

public String databaseProductName()

Overrides:

databaseProductName in class JDBCPlugIn

name

public String name()

WebObjects 5.4's version of JDBCAdaptor will use this in order to assemble the name of the prototype to use when it loads models.

Overrides:

name in class JDBCPlugIn

Returns:

the name of the plugin

shouldUseBundledJdbcInfo

protected boolean shouldUseBundledJdbcInfo()

This method returns true if the connection URL for the database has a special flag on it which indicates to the system that the jdbcInfo which has been bundled into the plugin is acceptable to use in place of actually going to the database and getting it.

Returns:

true if bundled jdbcInfo should be used

jdbcInfo

public NSDictionary<String,Object> jdbcInfo()

This is usually extracted from the the database using JDBC, but this is really inconvenient for users who are trying to generate SQL at some. A specific version of the data has been written into the property list of the framework and this can be used as a hard-coded equivalent.

Overrides:

jdbcInfo in class JDBCPlugIn

Returns:

jdbcInfo dictionary

createSynchronizationFactory

public EOSynchronizationFactory createSynchronizationFactory()

Returns a "pure java" synchronization factory. Useful for testing purposes.

Overrides:

createSynchronizationFactory in class JDBCPlugIn

defaultExpressionClass

public Class<? extends JDBCExpression> defaultExpressionClass()

Expression class to create. We have custom code, so we need our own class.

Overrides:

defaultExpressionClass in class JDBCPlugIn

newPrimaryKeys

public NSArray<NSDictionary<String,Object>> newPrimaryKeys(int count,
                                                           EOEntity entity,
                                                           JDBCChannel channel)

Overrides the parent implementation to provide a more efficient mechanism for generating primary keys, while generating the primary key support on the fly.

Overrides:

newPrimaryKeys in class JDBCPlugIn

Parameters:

count - the batch size

entity - the entity requesting primary keys

channel - open JDBCChannel

Returns:

NSArray of NSDictionary where each dictionary corresponds to a unique primary key value

_sequenceNameForEntity

protected static String _sequenceNameForEntity(EOEntity entity)

Utility method that returns the name of the sequence associated with entity

Parameters:

entity - the entity

Returns:

the name of the sequence