er.extensions.jdbc
Class ERXJDBCAdaptor

java.lang.Object
  com.webobjects.eoaccess.EOAdaptor
      com.webobjects.jdbcadaptor.JDBCAdaptor
          er.extensions.jdbc.ERXJDBCAdaptor

public class ERXJDBCAdaptor
extends com.webobjects.jdbcadaptor.JDBCAdaptor

Subclass of the JDBC adaptor and accompanying classes that supports connection pooling and posting of adaptor operation notifications. Will get patched into the runtime via the usual class name magic if the property er.extensions.ERXJDBCAdaptor.className is set to this class's name or another subclass of JDBCAdaptor. The connection pooling will be enabled if the system property er.extensions.ERXJDBCAdaptor.useConnectionBroker is set.

Author:

ak

Nested Class Summary

static class	ERXJDBCAdaptor.Channel Channel subclass to support notification posting.
static interface	ERXJDBCAdaptor.ConnectionBroker
static class	ERXJDBCAdaptor.Context Context subclass that uses connection pooling.

Nested classes/interfaces inherited from class com.webobjects.eoaccess.EOAdaptor

com.webobjects.eoaccess.EOAdaptor.Delegate

Field Summary

static java.lang.String	CLASS_NAME_KEY
static org.apache.log4j.Logger	log
static java.lang.String	USE_CONNECTION_BROKER_KEY

Fields inherited from class com.webobjects.jdbcadaptor.JDBCAdaptor

_cachedContext, _expressionFactory, _jdbcInfo, _plugin, _varcharMaxLength, DataSourceJndiNameKey, DriverKey, JDBCInfoKey, PasswordKey, PlugInKey, TypeInfoKey, URLKey, UsernameKey

Fields inherited from class com.webobjects.eoaccess.EOAdaptor

_connectionDictionary, _contexts, _delegate, _delegateRespondsTo_processValue, _delegateRespondsTo_reconDict, _expressionClass, _expressionClassName, _name

Constructor Summary

ERXJDBCAdaptor(java.lang.String s)

Method Summary

protected com.webobjects.jdbcadaptor.JDBCContext	_cachedAdaptorContext()
protected java.sql.Connection	checkoutConnection()
com.webobjects.eoaccess.EOAdaptorContext	createAdaptorContext()
ERXJDBCAdaptor.Context	createJDBCContext()
protected void	freeConnection(java.sql.Connection connection)
protected com.webobjects.foundation.NSDictionary	jdbcInfo()
static void	registerJDBCAdaptor()
protected com.webobjects.foundation.NSDictionary	typeInfo()
static boolean	useConnectionBroker() Returns whether the connection broker is active.

Methods inherited from class com.webobjects.jdbcadaptor.JDBCAdaptor

_valueTypeCharForAttribute, assertConnectionDictionaryIsValid, assignExternalTypeForAttribute, canServiceModel, connectionDictionaryURL, connectionProperties, connectionURL, createAttribute, defaultExpressionClass, driverName, expressionFactory, externalTypeForJDBCType, externalTypesWithModel, fetchedValueForValue, getJDBCInfoWithConnectionDictionary, handleDroppedConnection, isDroppedConnectionException, isValidQualifierType, password, plugIn, setConnectionDictionary, stringRepresentationForJDBCType, synchronizationFactory, typeInfoForModel, username, varcharMaxLength

Methods inherited from class com.webobjects.eoaccess.EOAdaptor

_assignExternalNameForAttribute, _createDropDatabase, _recursivelyConvertEntity, _registerAdaptorContext, _unregisterAdaptorContext, adaptorWithModel, adaptorWithName, administrativeConnectionDictionaryForAdaptor, assignExternalInfoForAttribute, assignExternalInfoForEntireModel, assignExternalInfoForEntity, connectionDictionary, contexts, createDatabaseWithAdministrativeConnectionDictionary, defaultDelegate, delegate, dropDatabaseWithAdministrativeConnectionDictionary, expressionClass, expressionClassName, fetchedValueForDataValue, fetchedValueForDateValue, fetchedValueForNumberValue, fetchedValueForStringValue, hasOpenChannels, internalTypeForExternalType, name, prototypeAttributes, setDefaultDelegate, setDelegate, setExpressionClassName

Methods inherited from class java.lang.Object

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

Field Detail

log

public static final org.apache.log4j.Logger log

USE_CONNECTION_BROKER_KEY

public static final java.lang.String USE_CONNECTION_BROKER_KEY

See Also:

Constant Field Values

CLASS_NAME_KEY

public static final java.lang.String CLASS_NAME_KEY

See Also:

Constant Field Values

Constructor Detail

ERXJDBCAdaptor

public ERXJDBCAdaptor(java.lang.String s)

Method Detail

useConnectionBroker

public static boolean useConnectionBroker()

Returns whether the connection broker is active.

registerJDBCAdaptor

public static void registerJDBCAdaptor()

_cachedAdaptorContext

protected com.webobjects.jdbcadaptor.JDBCContext _cachedAdaptorContext()

Overrides:

_cachedAdaptorContext in class com.webobjects.jdbcadaptor.JDBCAdaptor

jdbcInfo

protected com.webobjects.foundation.NSDictionary jdbcInfo()

Overrides:

jdbcInfo in class com.webobjects.jdbcadaptor.JDBCAdaptor

typeInfo

protected com.webobjects.foundation.NSDictionary typeInfo()

Overrides:

typeInfo in class com.webobjects.jdbcadaptor.JDBCAdaptor

createJDBCContext

public ERXJDBCAdaptor.Context createJDBCContext()

createAdaptorContext

public com.webobjects.eoaccess.EOAdaptorContext createAdaptorContext()

Overrides:

createAdaptorContext in class com.webobjects.jdbcadaptor.JDBCAdaptor

checkoutConnection

protected java.sql.Connection checkoutConnection()

freeConnection

protected void freeConnection(java.sql.Connection connection)