org.javarosa.core.model.data.helper

Class BasicDataPointer

java.lang.Object

org.javarosa.core.model.data.helper.BasicDataPointer

All Implemented Interfaces:

IDataPointer, Externalizable

public class BasicDataPointer
extends Object
implements IDataPointer

Basic implementor of the IDataPointer interface that keeps everything in memory

Author:

Cory Zue

Constructor Summary

Constructors

Constructor and Description
BasicDataPointer() NOTE: Only for serialization use.
BasicDataPointer(String name, byte[] data)

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()
void	readExternal(DataInputStream in, PrototypeFactory pf)
void	writeExternal(DataOutputStream out)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BasicDataPointer

public BasicDataPointer()

NOTE: Only for serialization use.

BasicDataPointer

public BasicDataPointer(String name,
                        byte[] data)

Method Detail

deleteData

public boolean deleteData()

Description copied from interface: IDataPointer

Deletes the underlying data from storage.

Specified by:

deleteData in interface IDataPointer

getData

public byte[] getData()

Description copied from interface: IDataPointer

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

Specified by:

getData in interface IDataPointer

Returns:

getDisplayText

public String getDisplayText()

Description copied from interface: IDataPointer

Get a display string that represents this data.

Specified by:

getDisplayText in interface IDataPointer

Returns:

getDataStream

public InputStream getDataStream()

Description copied from interface: IDataPointer

Get the data from the underlying storage.

Specified by:

getDataStream in interface IDataPointer

Returns:

readExternal

public void readExternal(DataInputStream in,
                         PrototypeFactory pf)
                  throws IOException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

writeExternal

public void writeExternal(DataOutputStream out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

getLength

public long getLength()

Specified by:

getLength in interface IDataPointer

Returns:

Gets the length of the data payload