Package org.openbravo.service.datasource

Interface DataSourceService

All Known Implementing Classes:

AccountTreeDatasourceService, ADAlertDatasourceService, ADTreeDatasourceService, BaseDataSourceService, ComboTableDatasourceService, CustomQuerySelectorDatasource, DataSourceServiceProviderTest.ExtendedDataSource, DefaultDataSourceService, HQLDataSourceService, LinkToParentTreeDatasourceService, LogDatasource, ManageVariantsDS, ModelDataSourceService, NoteDataSource, ProductCharacteristicsDS, QueryListDataSource, ReadOnlyDataSourceService, SelectorFieldPropertyDataSource, StockReservationPickAndEditDataSource, TreeDatasourceService

public interface DataSourceService

Represents a data source as it is present on the client. It provides both the javascript to create the datasource on the client as well as the runtime handling code of the client datasource calls to the server. Is the base class which can both query and return data as json as well as handle update, delete and insert requests with json data as an input. This is the base class for implementations of this service. Several methods have specific parameters or the content of the request (normally a json string). This class is cached so one instance is shared by multiple threads. Local caching of information should take this into account! NOTE: another (not-yet-implemented) thought is to cache datasources in session-scope. This allows for additional caching of information.

Author:

mtaal

Method Summary

Modifier and Type	Method	Description
String	add(Map<String,String> parameters, String content)	Execute an insert action.
void	checkEditDatasourceAccess(Map<String,String> parameter)	This method allows to implement a security access to a DataSource when it is used add(), update() or remove() methods.
void	checkFetchDatasourceAccess(Map<String,String> parameter)	This method allows to implement a security access to a DataSource when it is used fetch() method.
String	fetch(Map<String,String> parameters)	Execute a query request and return the result as a json string.
DataSource	getDataSource()	This method allows to implement a security access to a DataSource when it is used add(), update() or remove() methods.
List<DataSourceProperty>	getDataSourceProperties(Map<String,Object> parameters)	Create the properties used in the template.
String	getDataUrl()
Entity	getEntity()
String	getName()	The name of this service, in the default implementation this is the entityname of the Entity to get/insert/update/delete.
Template	getTemplate()
String	getWhereClause()
String	remove(Map<String,String> parameters)	Execute a delete action.
void	setDataSource(DataSource dataSource)	Passes in the data source read from the database.
void	setDataUrl(String dataUrl)
void	setEntity(Entity entity)
void	setName(String name)
void	setWhereClause(String whereClause)
String	update(Map<String,String> parameters, String content)	Execute an update action.

Method Detail

getTemplate

Template getTemplate()

Returns:

the Template used to render the data source

getDataSourceProperties

List<DataSourceProperty> getDataSourceProperties(Map<String,Object> parameters)

Create the properties used in the template.

Parameters:

parameters - parameters used for this request

Returns:

the list of DataSourceProperty instances to use in the template

fetch

String fetch(Map<String,String> parameters)

Execute a query request and return the result as a json string.

Parameters:

parameters - the parameters often coming from the HTTP request

Returns:

the json result string

remove

String remove(Map<String,String> parameters)

Execute a delete action. The id of the deleted record is present in the parameters.

Parameters:

parameters - the parameters often coming from the HTTP request

Returns:

the result message as a json string

add

String add(Map<String,String> parameters,
           String content)

Execute an insert action.

Parameters:

parameters - the parameters often coming from the HTTP request

content - , the request content, is assumed to be a json string

Returns:

the result message as a json string

update

String update(Map<String,String> parameters,
              String content)

Execute an update action.

Parameters:

parameters - the parameters often coming from the HTTP request

content - , the request content, is assumed to be a json string

Returns:

the result message as a json string

getName

String getName()

The name of this service, in the default implementation this is the entityname of the Entity to get/insert/update/delete.

Returns:

the name of the service

setName

void setName(String name)

getDataUrl

String getDataUrl()

setDataUrl

void setDataUrl(String dataUrl)

getEntity

Entity getEntity()

setEntity

void setEntity(Entity entity)

checkFetchDatasourceAccess

void checkFetchDatasourceAccess(Map<String,String> parameter)
                         throws OBSecurityException

This method allows to implement a security access to a DataSource when it is used fetch() method. It can be overridden in specific DataSources to apply a particular security mechanism.

Throws:

OBSecurityException - is thrown if current role does not have access.

checkEditDatasourceAccess

void checkEditDatasourceAccess(Map<String,String> parameter)
                        throws OBSecurityException

This method allows to implement a security access to a DataSource when it is used add(), update() or remove() methods. It can be overridden in specific DataSources to apply a particular security mechanism.

Throws:

OBSecurityException - is thrown if current role does not have access.

getWhereClause

String getWhereClause()

setWhereClause

void setWhereClause(String whereClause)

getDataSource

DataSource getDataSource()

This method allows to implement a security access to a DataSource when it is used add(), update() or remove() methods. It can be overridden in specific DataSources to apply a particular security mechanism.

Returns:

the data source read from the database. Note: can be null for data sources which are created in-memory on request.

setDataSource

void setDataSource(DataSource dataSource)

Passes in the data source read from the database. Is the place to initialize the data in the service class

Parameters:

dataSource - the data source read from the database.