com.ontimize.locator

Class DatabaseEntityManager

java.lang.Object

com.ontimize.locator.DatabaseEntityManager

All Implemented Interfaces:

EntityDataChangeListener, TransactionEntityDataChangeListener, EventListener

public class DatabaseEntityManager
extends Object
implements TransactionEntityDataChangeListener

Since:

5.2057EN-0.9

Author:

Imatia Innovation S.L.

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	changeDatabaseIsolation
protected static String	DATABASE_ENTITY_MANAGER_CLASS
protected static String	ENTITY_PROVIDER_ENTITY
protected static String	ENTITY_PROVIDER_ENTITYALIAS_COLUMN
protected static String	ENTITY_PROVIDER_ENTITYCLASS_COLUMN
protected static String	ENTITY_PROVIDER_ENTITYNAME_COLUMN
protected static String	ENTITY_PROVIDER_ENTITYPROPERTIES_COLUMN
protected String	entityProviderEntity
protected String	entityProviderEntityAliasColumn
protected String	entityProviderEntityClassColumn
protected String	entityProviderEntityNameColumn
protected String	entityProviderEntityPropertiesColumn
protected EntityReferenceLocator	locator

Constructor Summary

Constructors

Constructor and Description
DatabaseEntityManager(Hashtable params, EntityReferenceLocator locator)

Method Summary

Methods

Modifier and Type	Method and Description
void	dataChanged(DataChangeEvent e)
void	dataChanged(DataChangeEvent e, Connection con)
Entity	getDatabaseEntity(String entityName, DatabaseConnectionManager dbConnectionManager) Creates a new entity using the information in the database.
protected Class	getDatabaseEntityClass(String entityName, String entityClassName) Get the class for the specified entity.
protected Hashtable	getDatabaseEntityInfo(String entityName) Query the database to get the info for the specified entity name
static DatabaseEntityManager	getDatabaseManagerInstance(Hashtable params, EntityReferenceLocator locator)
protected String	getDefaultEntityClassName()
protected String	getEntitiesPackage()
protected Entity	getEntityReference(String entityName) Returns a reference to an Entity with name entityName.
protected int	getPort()
protected void	initDatabaseEntityListeners()
protected Properties	loadProperties(String properties) Creates a properties object with the information in the parameter

Methods inherited from class java.lang.Object

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

Field Detail

DATABASE_ENTITY_MANAGER_CLASS

protected static final String DATABASE_ENTITY_MANAGER_CLASS

See Also:

Constant Field Values

ENTITY_PROVIDER_ENTITY

protected static final String ENTITY_PROVIDER_ENTITY

See Also:

Constant Field Values

ENTITY_PROVIDER_ENTITYNAME_COLUMN

protected static final String ENTITY_PROVIDER_ENTITYNAME_COLUMN

See Also:

Constant Field Values

ENTITY_PROVIDER_ENTITYPROPERTIES_COLUMN

protected static final String ENTITY_PROVIDER_ENTITYPROPERTIES_COLUMN

See Also:

Constant Field Values

ENTITY_PROVIDER_ENTITYALIAS_COLUMN

protected static final String ENTITY_PROVIDER_ENTITYALIAS_COLUMN

See Also:

Constant Field Values

ENTITY_PROVIDER_ENTITYCLASS_COLUMN

protected static final String ENTITY_PROVIDER_ENTITYCLASS_COLUMN

See Also:

Constant Field Values

entityProviderEntity

protected String entityProviderEntity

entityProviderEntityNameColumn

protected String entityProviderEntityNameColumn

entityProviderEntityPropertiesColumn

protected String entityProviderEntityPropertiesColumn

entityProviderEntityAliasColumn

protected String entityProviderEntityAliasColumn

entityProviderEntityClassColumn

protected String entityProviderEntityClassColumn

locator

protected EntityReferenceLocator locator

changeDatabaseIsolation

public static boolean changeDatabaseIsolation

Constructor Detail

DatabaseEntityManager

public DatabaseEntityManager(Hashtable params,
                     EntityReferenceLocator locator)
                      throws Exception

Throws:

Exception

Method Detail

initDatabaseEntityListeners

protected void initDatabaseEntityListeners()
                                    throws Exception

Throws:

Exception

getDatabaseManagerInstance

public static DatabaseEntityManager getDatabaseManagerInstance(Hashtable params,
                                               EntityReferenceLocator locator)
                                                        throws Exception

Throws:

Exception

getDatabaseEntity

public Entity getDatabaseEntity(String entityName,
                       DatabaseConnectionManager dbConnectionManager)
                         throws Exception

Creates a new entity using the information in the database. If there is no information for this entity or database entity provider is not configured then return null

Parameters:

entityName - Name of the entity

dbConnectionManager - Database connection manager for the specified entity (in case of MultiConnectionManager)

Returns:

Throws:

Exception

getDatabaseEntityInfo

protected Hashtable getDatabaseEntityInfo(String entityName)
                                   throws Exception

Query the database to get the info for the specified entity name

Parameters:

entityName - name of the entity

Returns:

The record in the database with the values for the specified entity

Throws:

Exception

loadProperties

protected Properties loadProperties(String properties)
                             throws Exception

Creates a properties object with the information in the parameter

Parameters:

entityInfo - Information about the entity

Returns:

Throws:

Exception

getDatabaseEntityClass

protected Class getDatabaseEntityClass(String entityName,
                           String entityClassName)

Get the class for the specified entity.

Parameters:

entityName - Name of the entity.

entityClassName - Name of the class. This parameter can be null and then we use the name of the entity or the default entity class

Returns:

getEntityReference

protected Entity getEntityReference(String entityName)
                             throws Exception

Returns a reference to an Entity with name entityName.

This method checks if locator for this entity is an instance of ServerReferenceLocator. If true, getEntityReferenceFromServer(String) is used instead getEntityReference(String)

Parameters:

entityName - the entityName

checkDatabase -

Returns:

a Entity reference of null if no entity exists with name entityName

Throws:

Exception - if an error occurs

getPort

protected int getPort()

getEntitiesPackage

protected String getEntitiesPackage()

getDefaultEntityClassName

protected String getDefaultEntityClassName()

dataChanged

public void dataChanged(DataChangeEvent e,
               Connection con)

Specified by:

dataChanged in interface TransactionEntityDataChangeListener

dataChanged

public void dataChanged(DataChangeEvent e)

Specified by:

dataChanged in interface EntityDataChangeListener