com.vaadin.event

Interface Transferable

All Superinterfaces:

Serializable

All Known Implementing Classes:

DataBoundTransferable, DragAndDropWrapper.WrapperTransferable, Table.TableTransferable, TransferableImpl, Tree.TreeTransferable

public interface Transferable
extends Serializable

Transferable wraps the data that is to be imported into another component. Currently Transferable is only used for drag and drop.

Since:

6.3

Method Summary

Modifier and Type	Method and Description
Object	getData(String dataFlavor) Returns the data from Transferable by its data flavor (aka data type).
Collection<String>	getDataFlavors()
Component	getSourceComponent()
void	setData(String dataFlavor, Object value) Stores data of given data flavor to Transferable.

Method Detail

getData

Object getData(String dataFlavor)

Returns the data from Transferable by its data flavor (aka data type). Data types can be any string keys, but MIME types like "text/plain" are commonly used.

Note, implementations of Transferable often provide a better typed API for accessing data.

Parameters:

dataFlavor - the data flavor to be returned from Transferable

Returns:

the data stored in the Transferable or null if Transferable contains no data for given data flavour

setData

void setData(String dataFlavor,
             Object value)

Stores data of given data flavor to Transferable. Possibly existing value of the same data flavor will be replaced.

Parameters:

dataFlavor - the data flavor

value - the new value of the data flavor

getDataFlavors

Collection<String> getDataFlavors()

Returns:

a collection of data flavors ( data types ) available in this Transferable

getSourceComponent

Component getSourceComponent()

Returns:

the component that created the Transferable or null if the source component is unknown