org.pentaho.platform.dataaccess.datasource.wizard.service.gwt
Interface IDatasourceService

All Known Subinterfaces:

IGwtDatasourceService

All Known Implementing Classes:

DatasourceDebugGwtServlet, DatasourceServiceImpl, InMemoryDatasourceServiceImpl

public interface IDatasourceService

Method Summary

boolean	deleteLogicalModel(String domainId, String modelName) Delete the Logical Mode identified by the Domain ID and the Model Name
DatasourceDTO	deSerializeModelState(String dto) Returns a DatasourceDTO from a serialized string.
SerializedResultSet	doPreview(String connectionName, String query, String previewLimit) Returns the serialized version of SQL ResultSet.
BusinessData	generateLogicalModel(String modelName, String connectionName, String dbType, String query, String previewLimit) Returns the generated relational based logical model along with the sample data for the given connection name and query
List<LogicalModelSummary>	getLogicalModels() Returns the list of Logical Models.
BogoPojo	gwtWorkaround(BogoPojo pojo) This is a method for the Gwt workaround.
boolean	hasPermission() Returns whether the current user has the authority to create/edit/delete datasources
BusinessData	loadBusinessData(String domainId, String modelId) Returns the save logical model for a given Domain ID and Model ID
boolean	saveLogicalModel(org.pentaho.metadata.model.Domain domain, boolean overwrite) Save the generated model.
String	serializeModelState(DatasourceDTO dto) Returns a serialized version of the DatasourceDTO class.

Method Detail

getLogicalModels

List<LogicalModelSummary> getLogicalModels()
                                           throws DatasourceServiceException

Returns the list of Logical Models. This method is used by the client app to display list of models

Returns:

List of LogicalModelSummary.

Throws:

DatasourceServiceException

deleteLogicalModel

boolean deleteLogicalModel(String domainId,
                           String modelName)
                           throws DatasourceServiceException

Delete the Logical Mode identified by the Domain ID and the Model Name

Returns:

true if the deletion of model was successful otherwise false.

Throws:

DatasourceServiceException

doPreview

SerializedResultSet doPreview(String connectionName,
                              String query,
                              String previewLimit)
                              throws DatasourceServiceException

Returns the serialized version of SQL ResultSet.

Parameters:

connectionName - - Name of the connection

query - - Query which needs to be executed

previewLimit - - Number of row which needs to be returned for this query

Returns:

SerializedResultSet - This object contains the data, column name and column types

Throws:

DatasourceServiceException

generateLogicalModel

BusinessData generateLogicalModel(String modelName,
                                  String connectionName,
                                  String dbType,
                                  String query,
                                  String previewLimit)
                                  throws DatasourceServiceException

Returns the generated relational based logical model along with the sample data for the given connection name and query

Parameters:

modelName - - Name of the model to be generated

connectionName - - Name of the connection

dbType - - Dialect type

query - - Query which needs to be executed

previewLimit - - Number of row which needs to be returned for this query

Returns:

BusinessData - This object contains the data, column name, column types and sample data

Throws:

DatasourceServiceException

saveLogicalModel

boolean saveLogicalModel(org.pentaho.metadata.model.Domain domain,
                         boolean overwrite)
                         throws DatasourceServiceException

Save the generated model. This could be either Relational or CSV based model

Parameters:

domain - - generated Domain

overwrite - - should the domain be overwritten or not

Returns:

true if the model was saved successfully otherwise false

Throws:

DatasourceServiceException

hasPermission

boolean hasPermission()

Returns whether the current user has the authority to create/edit/delete datasources

Returns:

true if the user has permission otherwise false

Throws:

DatasourceServiceException

gwtWorkaround

BogoPojo gwtWorkaround(BogoPojo pojo)

This is a method for the Gwt workaround. This should not be used by any client at all

Returns:

BogoPojo

loadBusinessData

BusinessData loadBusinessData(String domainId,
                              String modelId)
                              throws DatasourceServiceException

Returns the save logical model for a given Domain ID and Model ID

Parameters:

domainId - - ID of the domain to be generated

modelId - - ID of the model to be generated

Returns:

BusinessData - This object contains the data, column name, column types and sample data

Throws:

DatasourceServiceException

serializeModelState

String serializeModelState(DatasourceDTO dto)
                           throws DatasourceServiceException

Returns a serialized version of the DatasourceDTO class.

Parameters:

dto - - Datasource data transfer object to serialize

Throws:

DatasourceServiceException

deSerializeModelState

DatasourceDTO deSerializeModelState(String dto)
                                    throws DatasourceServiceException

Returns a DatasourceDTO from a serialized string.

Parameters:

dto - - Datasource data transfer object to serialize

Throws:

DatasourceServiceException