de.ipcon.db.io

Class SecureObjectTransferHandler

java.lang.Object

de.ipcon.db.io.SecureObjectTransferHandler

All Implemented Interfaces:

ObjectTransferHandlerI

public class SecureObjectTransferHandler
extends java.lang.Object
implements ObjectTransferHandlerI

Constructor Summary

Constructors

Constructor and Description
SecureObjectTransferHandler(java.lang.String _logPrefix)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	readObject(CompactObjectInput in, int announcement) Reads an object from the passed CompactObjectInput without using readObject, taking into account the passed announcement marker.
java.lang.Object	readObject(CompactObjectInput in, int announcement, java.lang.Class[] expectedClasses) Reads an object from the passed CompactObjectInput without using readObject, taking into account the passed announcement marker.
int	writeAnnouncement(CompactObjectOutput out, java.lang.Object o) Writes an announcement marker for the passed class and possibly makes it known on the receiving end using the passed CompactObjectOutput.
boolean	writeObject(CompactObjectOutput out, java.lang.Object o, int writtenAnnouncement) Writes the given object to the passed CompactObjectOutput without using writeObject.

Methods inherited from class java.lang.Object

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

Constructor Detail

SecureObjectTransferHandler

public SecureObjectTransferHandler(java.lang.String _logPrefix)

Method Detail

writeAnnouncement

public int writeAnnouncement(CompactObjectOutput out,
                             java.lang.Object o)
                      throws java.io.IOException

Description copied from interface: ObjectTransferHandlerI

Writes an announcement marker for the passed class and possibly makes it known on the receiving end using the passed CompactObjectOutput.

Specified by:

writeAnnouncement in interface ObjectTransferHandlerI

Returns:

the announcement being written

Throws:

java.io.IOException

writeObject

public boolean writeObject(CompactObjectOutput out,
                           java.lang.Object o,
                           int writtenAnnouncement)
                    throws java.io.IOException

Description copied from interface: ObjectTransferHandlerI

Writes the given object to the passed CompactObjectOutput without using writeObject. If we can handle the object, true is returned. False otherwise, so the caller can care for the transfer.

Specified by:

writeObject in interface ObjectTransferHandlerI

Throws:

java.io.IOException

readObject

public java.lang.Object readObject(CompactObjectInput in,
                                   int announcement)
                            throws java.io.IOException

Description copied from interface: ObjectTransferHandlerI

Reads an object from the passed CompactObjectInput without using readObject, taking into account the passed announcement marker. The announcement marker is possibly stored locally and associated with the expected class if it was still unknown and the necessary data is received via the passed CompactObjectInput. If we do not know the marker, null is returned, so the caller can care for the reading. Otherwise the object is read from the stream and returned.

Specified by:

readObject in interface ObjectTransferHandlerI

Throws:

java.io.IOException

readObject

public java.lang.Object readObject(CompactObjectInput in,
                                   int announcement,
                                   java.lang.Class[] expectedClasses)
                            throws java.io.IOException

Description copied from interface: ObjectTransferHandlerI

Reads an object from the passed CompactObjectInput without using readObject, taking into account the passed announcement marker. Additionally it is checked if the marker represents one of the passed expected classes. If not, an IOException is raised. If we do not know the marker, null is returned, so the caller can care for the reading. Otherwise the object is read from the stream and returned.

Specified by:

readObject in interface ObjectTransferHandlerI

Throws:

java.io.IOException