org.formaria.data
Class OptionalDataSource

java.lang.Object
  org.formaria.data.DataSource
      org.formaria.data.OptionalDataSource

public class OptionalDataSource
extends DataSource

An extended datasource for handling databses, services and routing

Copyright: Copyright Formaria Ltd. (c) 2003

$Revision: 2.15 $ License: see license.txt

Field Summary

protected DataModelLoader

modelLoader

Fields inherited from class org.formaria.data.DataSource

currentProject

Constructor Summary

OptionalDataSource(Project project)

Method Summary

static java.lang.String	checkLocalHsqldb(java.lang.ClassLoader cl, java.lang.String dbDriver, java.lang.String dbUrl) Check for a local database url.
protected java.lang.String	checkLocalHsqldb(java.lang.String dbDriver, java.lang.String dbUrl) Check for a local database url.
java.lang.String	getModelXML(DataModel mdl) Output the model to a String and return it
void	loadDatabase(XmlElement source, DataModel model) Recursively load the model data
void	read(java.io.Reader r) Read a model from the Reader
void	registerDatabaseNode(XmlElement source) Register a database source element found within the datasets.xml file
void	registerDataSource(XmlElement source) Register the datasource files found within the datasets.xml file
DataModelLoader	setModelLoader() Gets the object being used to load the model node
void	setModelLoader(DataModelLoader rc) Sets the object that is used to construct data sources via relfection.
protected void	showVisualisation() If the ShowVisualiser property is set to true then show the visualiser for debugging

Methods inherited from class org.formaria.data.DataSource

loadTable, outputModel, outputModel, outputModel, read, readDataSource, setUseValueAsId, write, write

Methods inherited from class java.lang.Object

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

Field Detail

modelLoader

protected DataModelLoader modelLoader

Constructor Detail

OptionalDataSource

public OptionalDataSource(Project project)

Parameters:

project - the owner project

Method Detail

setModelLoader

public DataModelLoader setModelLoader()

Gets the object being used to load the model node

Returns:

DataModelLoader object

setModelLoader

public void setModelLoader(DataModelLoader rc)

Sets the object that is used to construct data sources via relfection.

Parameters:

rc - the DataModelLoader object

showVisualisation

protected void showVisualisation()

If the ShowVisualiser property is set to true then show the visualiser for debugging

read

public void read(java.io.Reader r)

Read a model from the Reader

Overrides:

read in class DataSource

Parameters:

r - the Reader

registerDataSource

public void registerDataSource(XmlElement source)

Register the datasource files found within the datasets.xml file

Parameters:

source - The path to the discovered file

registerDatabaseNode

public void registerDatabaseNode(XmlElement source)

Register a database source element found within the datasets.xml file

Parameters:

source - The path to the database file

loadDatabase

public void loadDatabase(XmlElement source,
                         DataModel model)

Recursively load the model data

Parameters:

source - the source element

model - the model for the source element

checkLocalHsqldb

protected java.lang.String checkLocalHsqldb(java.lang.String dbDriver,
                                            java.lang.String dbUrl)

Check for a local database url. For hsqldb this extracts the db files to a local directory and returns the modiefied URL

Parameters:

dbDriver - the database drivr class

dbUrl - the database url

checkLocalHsqldb

public static java.lang.String checkLocalHsqldb(java.lang.ClassLoader cl,
                                                java.lang.String dbDriver,
                                                java.lang.String dbUrl)

Check for a local database url. For hsqldb this extracts the db files to a local directory and returns the modiefied URL

Parameters:

cl - teh classloader used to try and find the database files

dbDriver - the database drivr class

dbUrl - the database url

getModelXML

public java.lang.String getModelXML(DataModel mdl)

Output the model to a String and return it

Parameters:

mdl - the model to bt output

Returns:

the String representation of the model