Package org.seedstack.business.data

Interface DataManager

public interface DataManager

The data manager provides data import and export facilities.

Method Summary

Modifier and Type	Method	Description
void	exportData(OutputStream outputStream)	Export all data of the application as a stream.
void	exportData(OutputStream outputStream, String group)	Export data from one specified group as a stream.
void	exportData(OutputStream outputStream, String group, String name)	Export a specified data set as a stream.
void	importData(InputStream inputStream)	Import data in the application from a stream.
void	importData(InputStream inputStream, String group)	Import data from one specified group, ignoring other data.
void	importData(InputStream inputStream, String group, String name)	Import data from the specified data set, ignoring other data.
boolean	isInitialized(String group, String name)	Returns if a particular data set is already initialized in the application.

Method Detail

exportData

void exportData(OutputStream outputStream)

Export all data of the application as a stream.

Parameters:

outputStream - the stream to output data to.

exportData

void exportData(OutputStream outputStream,
                String group)

Export data from one specified group as a stream.

Parameters:

outputStream - the stream to output data to.

group - the data group.

exportData

void exportData(OutputStream outputStream,
                String group,
                String name)

Export a specified data set as a stream.

Parameters:

outputStream - the stream to output data to.

group - the data group.

name - the data name.

importData

void importData(InputStream inputStream)

Import data in the application from a stream.

Parameters:

inputStream - the stream to read data from.

importData

void importData(InputStream inputStream,
                String group)

Import data from one specified group, ignoring other data.

Parameters:

inputStream - the stream to read data from.

group - the data group.

importData

void importData(InputStream inputStream,
                String group,
                String name)

Import data from the specified data set, ignoring other data.

Parameters:

inputStream - the stream to read data from.

group - the data group.

name - the data name.

isInitialized

boolean isInitialized(String group,
                      String name)

Returns if a particular data set is already initialized in the application. This method is used to know if it must automatically load initialization data.

Parameters:

group - the data group.

name - the data name.

Returns:

true if already initialized, false otherwise.