ej.sp

Interface SPReader

public interface SPReader

The SPReader interface provides a method for reconstructing objects from a block.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	readObject(ShieldedPlug sp, int blockID) Reads and returns an object from a block of the given ShieldedPlug.

Method Detail

readObject

java.lang.Object readObject(ShieldedPlug sp,
                            int blockID)
                     throws EmptyBlockException

Reads and returns an object from a block of the given ShieldedPlug. The class implementing this interface defines how the object is "read".

Parameters:

sp - the ShieldedPlug from which data is read

blockID - the ID of the block

Returns:

the object read from the ShieldedPlug

Throws:

java.lang.IllegalArgumentException - if no block is defined with the given ID

java.lang.IndexOutOfBoundsException - if the block length is lower than the size needed for object de-serialization

EmptyBlockException - if no data is available in the block