org.apache.jdo.impl.fostore
Class ObjectTranscriber.CollectionTranscriber

java.lang.Object
  org.apache.jdo.impl.fostore.ObjectTranscriber.AbstractTranscriber
      org.apache.jdo.impl.fostore.ObjectTranscriber.CollectionTranscriber

All Implemented Interfaces:

Transcriber

Direct Known Subclasses:

ObjectTranscriber.ArrayListTranscriber, ObjectTranscriber.HashSetTranscriber, ObjectTranscriber.LinkedListTranscriber, ObjectTranscriber.TreeSetTranscriber, ObjectTranscriber.VectorTranscriber

Enclosing class:

ObjectTranscriber

abstract class ObjectTranscriber.CollectionTranscriber

extends ObjectTranscriber.AbstractTranscriber

Transcribe Collections.

Constructor Summary

(package private)

ObjectTranscriber.CollectionTranscriber()

Method Summary

(package private) abstract java.lang.Object	fetch(java.io.DataInput in, java.lang.Object owner, int fieldNum)
(package private) void	skip(java.io.DataInput in) Skips elements of a Collection.
(package private) abstract void	store(java.lang.Object value, FOStoreOutput out)
protected void	storeCollection(java.util.Collection obj, FOStoreOutput out) Store the elements of the collection.
protected void	writeInfo(java.util.Collection obj, FOStoreOutput out) Writes information for Collections, particularly for SCO Collections.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectTranscriber.CollectionTranscriber

ObjectTranscriber.CollectionTranscriber()

Method Detail

writeInfo

protected void writeInfo(java.util.Collection obj,
                         FOStoreOutput out)
                  throws java.io.IOException

Writes information for Collections, particularly for SCO Collections.

Parameters:

obj - Collection (possibly SCO) for which information in written.

out - Output to which information is written.

Throws:

java.io.IOException - if there are problems writing information.

storeCollection

protected void storeCollection(java.util.Collection obj,
                               FOStoreOutput out)
                        throws java.io.IOException

Store the elements of the collection. Freeze the elements, then iterate over them.

Throws:

java.io.IOException

skip

void skip(java.io.DataInput in)
    throws java.io.IOException

Skips elements of a Collection.

Specified by:

skip in class ObjectTranscriber.AbstractTranscriber

Parameters:

in - Place from where the array's values should be read

Throws:

java.io.IOException - if there are problems writing information.

store

abstract void store(java.lang.Object value,
                    FOStoreOutput out)
             throws java.io.IOException

Throws:

java.io.IOException

fetch

abstract java.lang.Object fetch(java.io.DataInput in,
                                java.lang.Object owner,
                                int fieldNum)
                         throws java.lang.Exception

Throws:

java.lang.Exception