de.schwarzrot.data.access
Interface DataAccessor

All Known Implementing Classes:

JDBCResultSetAccessor, PreferencesAccessor

public interface DataAccessor

interface for anonymous data access. Currently it is used to access a Resultset from JDBC the same way, as Preferences nodes.

Author:

Reinhard Mantey

Method Summary

void	close() close the data container and free resources
Collection<String>	entryNames() returns a list of names, that are known by this data collection
Object	getHandle() returns a handle to the data
Object	getObject(String name) returns a value by name
boolean	hasData() returns true, if data is available, otherwise false

Method Detail

close

void close()

close the data container and free resources

entryNames

Collection<String> entryNames()

returns a list of names, that are known by this data collection

Returns:

- a list of names

getHandle

Object getHandle()

returns a handle to the data

Returns:

- a handle to the data

getObject

Object getObject(String name)

returns a value by name

Parameters:

name - - name of the value

Returns:

- the value

hasData

boolean hasData()

returns true, if data is available, otherwise false

Returns:

- true, if data is available, otherwise false