org.ujoframework.orm
Class OrmHandler

java.lang.Object
  org.ujoframework.orm.OrmHandler

public class OrmHandler
extends java.lang.Object

The basic class for an ORM support.

Author:

Pavel Ponec

Constructor Summary

OrmHandler()
The (Sigleton ?)

Method Summary

void	addProperty(UjoProperty property, MetaRelation2Many newColumn) Map a property to the table
void	config(MetaParams params) Save the ORM parameters.
void	config(MetaRoot config) Save the ORM configuration include parameters (if the parameters are not null).
boolean	config(java.lang.String url) Load parameters from an external XML file.
boolean	config(java.net.URL url, boolean throwsException) Load parameters from an external XML file.
Session	createSession() Create new session TODO: getDefaultSession from a map by key.
MetaRelation2Many	findColumnModel(UjoProperty pathProperty) Find a Relation/Column model of the paramemeter property.
MetaTable	findTableModel(java.lang.Class<? extends OrmUjo> dbClass) Find a table model by the dbClass.
static OrmHandler	getInstance() A candidate to removing
MetaParams	getParameters() Returns parameters
Session	getSession() Get Session TODO: getDefaultSession from a map by key.
boolean	isPersistent(UjoProperty property) Is the parameter a persistent property?
<UJO extends OrmUjo> void	loadDatabase(java.lang.Class<UJO>... databaseModels) Load a meta-data and create database tables
<UJO extends OrmUjo> void	loadDatabase(java.lang.Class<UJO> databaseModel) Load a meta-data and create database tables

Methods inherited from class java.lang.Object

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

Constructor Detail

OrmHandler

public OrmHandler()

The (Sigleton ?) constructor

Method Detail

getInstance

public static OrmHandler getInstance()

A candidate to removing

getSession

public Session getSession()

Get Session
TODO: getDefaultSession from a map by key.

createSession

public Session createSession()

Create new session
TODO: getDefaultSession from a map by key.

config

public boolean config(java.lang.String url)
               throws java.lang.IllegalArgumentException

Load parameters from an external XML file. The initialization must be finished before an ORM definition loading.

Throws:

java.lang.IllegalArgumentException

config

public void config(MetaParams params)
            throws java.lang.IllegalArgumentException

Save the ORM parameters. The assigning must be finished before an ORM definition loading.

Throws:

java.lang.IllegalArgumentException

config

public void config(MetaRoot config)
            throws java.lang.IllegalArgumentException

Save the ORM configuration include parameters (if the parameters are not null). The assigning must be finished before an ORM definition loading.

Throws:

java.lang.IllegalArgumentException

config

public boolean config(java.net.URL url,
                      boolean throwsException)
               throws java.lang.IllegalArgumentException

Load parameters from an external XML file. The initialization must be finished before an ORM definition loading.

Throws:

java.lang.IllegalArgumentException

isPersistent

public boolean isPersistent(UjoProperty property)

Is the parameter a persistent property?

loadDatabase

public final <UJO extends OrmUjo> void loadDatabase(java.lang.Class<UJO> databaseModel)

Load a meta-data and create database tables

loadDatabase

public <UJO extends OrmUjo> void loadDatabase(java.lang.Class<UJO>... databaseModels)

Load a meta-data and create database tables

addProperty

public void addProperty(UjoProperty property,
                        MetaRelation2Many newColumn)

Map a property to the table

findColumnModel

public MetaRelation2Many findColumnModel(UjoProperty pathProperty)

Find a Relation/Column model of the paramemeter property.

Parameters:

pathProperty - Parameter can be type of Property of PathProperty (direct or indirect);

Returns:

Related model or the null if model was not found.

findTableModel

public MetaTable findTableModel(java.lang.Class<? extends OrmUjo> dbClass)

Find a table model by the dbClass. Returns null of table is not found.

getParameters

public MetaParams getParameters()

Returns parameters