org.javarosa.core.data

Interface IDataPointer

All Superinterfaces:

Externalizable

All Known Implementing Classes:

BasicDataPointer

public interface IDataPointer
extends Externalizable

A data pointer representing a pointer to a (usually) larger object in memory.

Author:

Cory Zue

Method Summary

Modifier and Type	Method and Description
boolean	deleteData() Deletes the underlying data from storage.
byte[]	getData() Get the data from the underlying storage.
InputStream	getDataStream() Get the data from the underlying storage.
String	getDisplayText() Get a display string that represents this data.
long	getLength()

Methods inherited from interface org.javarosa.core.util.externalizable.Externalizable

readExternal, writeExternal

Method Detail

getDisplayText

String getDisplayText()

Get a display string that represents this data.

Returns:

getData

byte[] getData()
        throws IOException

Get the data from the underlying storage. This should maybe be a stream instead of a byte[]

Returns:

Throws:

IOException

getDataStream

InputStream getDataStream()
                   throws IOException

Get the data from the underlying storage.

Returns:

Throws:

IOException

deleteData

boolean deleteData()

Deletes the underlying data from storage.

getLength

long getLength()

Returns:

Gets the length of the data payload