Examples of org.datanucleus.metadata.CollectionMetaData

org.datanucleus.metadata.CollectionMetaData
Representation of the MetaData of a collection.

                Class elType = ClassUtils.getCollectionElementType(field.getType(), field.getGenericType());
                elementType = (elType != null ? elType.getName() : null);
            }
            // No annotation for collections so cant specify the element type, dependent, embedded, serialized


            contmd = new CollectionMetaData();
            ((CollectionMetaData)contmd).setElementType(elementType);
        }
        else if (field.getType().isArray())
        {
            contmd = new ArrayMetaData();

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            elementToRemove = ec.findObject(ec.getApiAdapter().getIdForObject(element), true, false,
                element.getClass().getName());
        }


        boolean modified = getSpecialization().remove(sm, elementToRemove, size, this);
        CollectionMetaData collmd = ownerMemberMetaData.getCollection();
        boolean dependent = collmd.isDependentElement();
        if (ownerMemberMetaData.isCascadeRemoveOrphans())
        {
            dependent = true;
        }
        if (allowDependentField && dependent && !collmd.isEmbeddedElement())
        {
            // TODO Could this element be stored as a duplicate in this set ?
            // Delete the element if it is dependent
            sm.getExecutionContext().deleteObjectInternal(elementToRemove);
        }

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            FKListStoreSpecialization specialization)
    {
        super(storeMgr, clr, specialization);


        setOwner(fmd, clr);
        CollectionMetaData colmd = fmd.getCollection();
        if (colmd == null)
        {
            throw new NucleusUserException(LOCALISER.msg("056001", fmd.getFullFieldName()));
        }


        // Load the element class
        elementType = colmd.getElementType();
        Class element_class = clr.classForName(elementType);


        if (ClassUtils.isReferenceType(element_class))
        {
            // Take the metadata for the first implementation of the reference type

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                      AbstractSetStoreSpecialization specialization)
    {
        super(storeMgr, clr, specialization);


        setOwner(fmd, clr);
        CollectionMetaData colmd = fmd.getCollection();
        if (colmd == null)
        {
            throw new NucleusUserException(LOCALISER.msg("056001", fmd.getFullFieldName()));
        }


        // Load the element class
        elementType = colmd.getElementType();
        Class element_class = clr.classForName(elementType);


        if (ClassUtils.isReferenceType(element_class))
        {
            elementIsPersistentInterface = storeMgr.getNucleusContext().getMetaDataManager().isPersistentInterface(element_class.getName());

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                element.getClass().getName());
        }


        boolean modified = internalRemove(sm, elementToRemove, size);


        CollectionMetaData collmd = ownerMemberMetaData.getCollection();
        boolean dependent = collmd.isDependentElement();
        if (ownerMemberMetaData.isCascadeRemoveOrphans())
        {
            dependent = true;
        }
        if (allowDependentField && dependent && !collmd.isEmbeddedElement())
        {
            // Delete the element if it is dependent
            sm.getExecutionContext().deleteObjectInternal(elementToRemove);
        }

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        {
            // Ordered list doesn't allow indexed removal so just remove the element
            internalRemove(sm, element, size);
        }


        CollectionMetaData collmd = ownerMemberMetaData.getCollection();
        boolean dependent = collmd.isDependentElement();
        if (ownerMemberMetaData.isCascadeRemoveOrphans())
        {
            dependent = true;
        }
        if (dependent && !collmd.isEmbeddedElement())
        {
            if (!contains(sm, element))
            {
                // Delete the element if it is dependent and doesn't have a duplicate entry in the list
                sm.getExecutionContext().deleteObjectInternal(element);

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     * @param ownerSM State Manager for the container. 
     */
    public void clear(ObjectProvider ownerSM)
    {
        Collection dependentElements = null;
        CollectionMetaData collmd = ownerMemberMetaData.getCollection();
        boolean dependent = collmd.isDependentElement();
        if (ownerMemberMetaData.isCascadeRemoveOrphans())
        {
            dependent = true;
        }
        if (dependent && !collmd.isEmbeddedElement() && !collmd.isSerializedElement())
        {
            // Retain the dependent elements that need deleting after clearing
            dependentElements = new HashSet();
            Iterator iter = iterator(ownerSM);
            while (iter.hasNext())

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        validateElementForWriting(sm, element, null);
        Object o = get(sm, index);


        getSpecialization().set(element, index, sm, this);


        CollectionMetaData collmd = ownerMemberMetaData.getCollection();
        boolean dependent = collmd.isDependentElement();
        if (ownerMemberMetaData.isCascadeRemoveOrphans())
        {
            dependent = true;
        }
        if (dependent && !collmd.isEmbeddedElement() && allowDependentField)
        {
            if (o != null && !contains(sm, o))
            {
                // Delete the element if it is dependent and doesnt have a duplicate entry in the list
                sm.getExecutionContext().deleteObjectInternal(o);

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                pushStack(arrmd);
            }
            else if (localName.equals("collection"))
            {
                AbstractMemberMetaData fmd = (AbstractMemberMetaData)getStack();
                CollectionMetaData collmd = fmd.newCollectionMetaData();
                collmd.setElementType(getAttr(attrs,"element-type"));
                collmd.setEmbeddedElement(getAttr(attrs,"embedded-element"));
                collmd.setSerializedElement(getAttr(attrs,"serialized-element"));
                collmd.setDependentElement(getAttr(attrs,"dependent-element"));
                pushStack(collmd);
            }
            else if (localName.equals("column"))
            {
                MetaData md = getStack();

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                        // Try to derive element type from generics info
                        collectionElementType =
                            ClassUtils.getCollectionElementType(member.getType(), member.getGenericType());
                    }


                    contmd = new CollectionMetaData();
                    CollectionMetaData collmd = (CollectionMetaData)contmd;
                    collmd.setElementType(elementTypeStr.toString());
                    collmd.setEmbeddedElement(embeddedElement);
                    collmd.setSerializedElement(serializedElement);
                    collmd.setDependentElement(dependentElement);


                    // Add any embedded element mappings
                    if (embeddedElementMembers != null)
                    {
                        EmbeddedMetaData embmd = elemmd.getEmbeddedMetaData();

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