de.schwarzrot.data.access
Interface Exporter

All Known Implementing Classes:

XMLExporter

public interface Exporter

interface to implement export functionality. An Exporter, as well as an Importer should be able to handle transformation of several entities with all relations and handling of different key sequences.

Author:

Reinhard Mantey

Method Summary

<E extends Entity> void	performExport(E object, Writer out) exports a single entity with all relations
void	performExport(List<?> lst, String id, Writer out) exports a list of entities
void	performExport(Map<?,?> map, String id, Writer out) exports a map of entities
void	setEntityDescriptorAccessor(EntityDescriptorAccessor eda) injection method: sets the description accessor to access EntityDescriptions

Method Detail

performExport

<E extends Entity> void performExport(E object,
                                      Writer out)
                   throws Exception

exports a single entity with all relations

Type Parameters:

E - - class of entity

Parameters:

object - - instance to export

out - - channel to write export data to

Throws:

Exception - - depends on implementation

performExport

void performExport(List<?> lst,
                   String id,
                   Writer out)
                   throws Exception

exports a list of entities

Parameters:

lst - - the list of entities to export

id - - used to name the list

out - - channel to write export data to

Throws:

Exception - - depends on implementation

performExport

void performExport(Map<?,?> map,
                   String id,
                   Writer out)
                   throws Exception

exports a map of entities

Parameters:

map - - the map of entities to export

id - - used to name the map

out - - channel to write export data to

Throws:

Exception - - depends on implementation

setEntityDescriptorAccessor

void setEntityDescriptorAccessor(EntityDescriptorAccessor eda)

injection method: sets the description accessor to access EntityDescriptions

Parameters:

eda - - the accessor to use