de.ipcon.db.io

Interface ObjectTransferHandlerI

All Known Implementing Classes:

SecureObjectTransferHandler

public interface ObjectTransferHandlerI

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	$0

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.

Field Detail

$0

static final java.lang.String $0

See Also:

Constant Field Values

Method Detail

writeAnnouncement

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

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

Returns:

the announcement being written

Throws:

java.io.IOException

writeObject

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

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.

Throws:

java.io.IOException

readObject

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

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.

Throws:

java.io.IOException

readObject

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

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.

Throws:

java.io.IOException