Examples of oracle.toplink.essentials.internal.sessions.AbstractRecord

Package oracle.toplink.essentials.internal.sessions

Examples of oracle.toplink.essentials.internal.sessions.AbstractRecord

oracle.toplink.essentials.internal.sessions.AbstractRecord
Purpose: Define the abstract definition of a record for internal use. Public API should reference the Record interface. Subclasses are DatabaseRecord and XMLRecord.
Responsibilities:
- Implement the Record and Map interfaces.
@see DatabaseField

            return;
        }


        SQLInsertStatement statement = new SQLInsertStatement();
        statement.setTable(getReferenceTable());
        AbstractRecord directRow = new DatabaseRecord();
        for (Enumeration referenceEnum = getReferenceKeyFields().elements();
                 referenceEnum.hasMoreElements();) {
            directRow.put((DatabaseField)referenceEnum.nextElement(), null);
        }
        directRow.put(getDirectField(), null);
        statement.setModifyRow(directRow);
        getInsertQuery().setSQLStatement(statement);
        getInsertQuery().setModifyRow(directRow);
    }

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     * INTERNAL:
     * Insert the private owned object.
     */
    public void postInsert(WriteObjectQuery query) throws DatabaseException {
        Object objects;
        AbstractRecord databaseRow = new DatabaseRecord();


        if (isReadOnly()) {
            return;
        }


        objects = getRealCollectionAttributeValueFromObject(query.getObject(), query.getSession());
        ContainerPolicy containerPolicy = getContainerPolicy();
        if (containerPolicy.isEmpty(objects)) {
            return;
        }


        prepareTranslationRow(query.getTranslationRow(), query.getObject(), query.getSession());
        // Extract primary key and value from the source.
        for (int index = 0; index < getReferenceKeyFields().size(); index++) {
            DatabaseField referenceKey = (DatabaseField)getReferenceKeyFields().elementAt(index);
            DatabaseField sourceKey = (DatabaseField)getSourceKeyFields().elementAt(index);
            Object sourceKeyValue = query.getTranslationRow().get(sourceKey);
            databaseRow.put(referenceKey, sourceKeyValue);
        }


        // Extract target field and its value. Construct insert statement and execute it
        for (Object iter = containerPolicy.iteratorFor(objects); containerPolicy.hasNext(iter);) {
            Object object = containerPolicy.next(iter, query.getSession());
            if (getValueConverter() != null) {
                object = getValueConverter().convertObjectValueToDataValue(object, query.getSession());
            }
            databaseRow.put(getDirectField(), object);


            // In the uow data queries are cached until the end of the commit.
            if (query.shouldCascadeOnlyDependentParts()) {
                // Hey I might actually want to use an inner class here... ok array for now.
                Object[] event = new Object[3];
                event[0] = Insert;
                event[1] = getInsertQuery();
                event[2] = databaseRow.clone();
                query.getSession().getCommitManager().addDataModificationEvent(this, event);
            } else {
                query.getSession().executeQuery(getInsertQuery(), databaseRow);
            }
        }

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            Object sourceKeyValue = writeQuery.getTranslationRow().get(sourceKey);
            writeQuery.getTranslationRow().put(referenceKey, sourceKeyValue);
        }
        for (Iterator iterator = changeRecord.getRemoveObjectMap().keySet().iterator(); iterator.hasNext();){
            Object object = iterator.next();
            AbstractRecord thisRow = (AbstractRecord)writeQuery.getTranslationRow().clone();
            Object value = object;
            if (getValueConverter() != null){
                value = getValueConverter().convertObjectValueToDataValue(value, writeQuery.getSession());
            }
            if (value == DirectCollectionChangeRecord.Null){
                thisRow.add(getDirectField(), null);
            }else{
                thisRow.add(getDirectField(), value);
            }
            // Hey I might actually want to use an inner class here... ok array for now.
            Object[] event = new Object[3];
            event[0] = Delete;
            event[1] = getDeleteQuery();
            event[2] = thisRow;
            writeQuery.getSession().getCommitManager().addDataModificationEvent(this, event);
            Integer count = (Integer)changeRecord.getCommitAddMap().get(object);
            if (count != null){
                for (int counter = count.intValue(); counter > 0; --counter){
                    thisRow = (AbstractRecord)writeQuery.getTranslationRow().clone();
                    thisRow.add(getDirectField(), value);
                    // Hey I might actually want to use an inner class here... ok array for now.
                    event = new Object[3];
                    event[0] = Insert;
                    event[1] = getInsertQuery();
                    event[2] = thisRow;
                    writeQuery.getSession().getCommitManager().addDataModificationEvent(this, event);
                }
            }
        }
        for (Iterator iterator = changeRecord.getAddObjectMap().keySet().iterator(); iterator.hasNext();){
            Object object = iterator.next();
            Integer count = (Integer)changeRecord.getAddObjectMap().get(object);
            for (int counter = count.intValue(); counter > 0; --counter){
                AbstractRecord thisRow = (AbstractRecord)writeQuery.getTranslationRow().clone();
                Object value = object;
                if (getValueConverter() != null){
                    value = getValueConverter().convertObjectValueToDataValue(value, writeQuery.getSession());
                }
                if (value == DirectCollectionChangeRecord.Null){  //special placeholder for nulls
                    thisRow.add(getDirectField(), null);
                }else{
                    thisRow.add(getDirectField(), value);
                }
                // Hey I might actually want to use an inner class here... ok array for now.
                Object[] event = new Object[3];
                event[0] = Insert;
                event[1] = getInsertQuery();

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        // Row is built for translation
        if (isReadOnly()) {
            return true;
        }


        AbstractRecord row = getDescriptor().getObjectBuilder().buildRowForTranslation(object, session);
        Object value = session.executeQuery(getSelectionQuery(), row);


        return getContainerPolicy().isEmpty(value);
    }

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     */
    public UnitOfWorkValueHolder createUnitOfWorkValueHolder(ValueHolderInterface attributeValue, Object original, Object clone, AbstractRecord row, UnitOfWorkImpl unitOfWork, boolean buildDirectlyFromRow) {
        UnitOfWorkQueryValueHolder valueHolder = null;
        if ((row == null) && (getDescriptor().getObjectBuilder().isPrimaryKeyMapping(this))) {
            // The row must be built if a primary key mapping for remote case.
            AbstractRecord rowFromTargetObject = extractPrimaryKeyRowForSourceObject(original, unitOfWork);
            valueHolder = new UnitOfWorkQueryValueHolder(attributeValue, clone, this, rowFromTargetObject, unitOfWork);
        } else {
            valueHolder = new UnitOfWorkQueryValueHolder(attributeValue, clone, this, row, unitOfWork);
        }

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    /**
     * INTERNAL:
     * Extract the reference pk for rvh usage in remote model.
     */
    public AbstractRecord extractPrimaryKeyRowForSourceObject(Object domainObject, AbstractSession session) {
        AbstractRecord databaseRow = getDescriptor().getObjectBuilder().createRecord();
        writeFromObjectIntoRow(domainObject, databaseRow, session);
        return databaseRow;
    }

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                container = getMapping().buildCloneForPartObject(attributeValue, original, clone, unitOfWork, false);
            } else {
                if (!(attributeValue instanceof IndirectContainer)) {
                    valueHolder = new ValueHolder(attributeValue);
                }
                AbstractRecord row = null;
                if (valueHolder instanceof DatabaseValueHolder) {
                    row = ((DatabaseValueHolder)valueHolder).getRow();
                }


                //If a new object is being cloned then we must build a new UOWValueHolder
                //  this is so that new clones can also have their relationships managed
                // here the code instantiates the valueholder in a privledged manner because a
                // UOWValueHolder will assume the objects in the collection are existing if the valueholder
                //  Goes through it's own instantiation process.
                UnitOfWorkValueHolder newValueHolder = this.getMapping().createUnitOfWorkValueHolder(valueHolder, original, clone, row, unitOfWork, buildDirectlyFromRow);
                container = buildIndirectContainer(newValueHolder);
                Object cloneCollection = getMapping().buildCloneForPartObject(attributeValue, original, clone, unitOfWork, false);
                newValueHolder.privilegedSetValue(cloneCollection);
                newValueHolder.setInstantiated();
            }
        } else {
            if (!(attributeValue instanceof IndirectContainer)) {
                valueHolder = new ValueHolder(attributeValue);
            }
            AbstractRecord row = null;
            if (valueHolder instanceof DatabaseValueHolder) {
                row = ((DatabaseValueHolder)valueHolder).getRow();
            }
            container = buildIndirectContainer(getMapping().createUnitOfWorkValueHolder(valueHolder, original, clone, row, unitOfWork, buildDirectlyFromRow));
        }

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     * INTERNAL:
     * Build and return a database row with all the reference
     * fields set to nulls.
     */
    protected AbstractRecord buildNullReferenceRow() {
        AbstractRecord result = new DatabaseRecord(getReferenceFields().size());
        for (Enumeration stream = getReferenceFields().elements(); stream.hasMoreElements();) {
            result.put((DatabaseField)stream.nextElement(), null);
        }
        return result;
    }

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     * INTERNAL:
     * Build and return a "template" database row with all the fields
     * set to null.
     */
    protected AbstractRecord buildTemplateInsertRow(AbstractSession session) {
        AbstractRecord result = getReferenceDescriptor().getObjectBuilder().buildTemplateInsertRow(session);
        List processedMappings = (List)getReferenceDescriptor().getMappings().clone();
        if (getReferenceDescriptor().hasInheritance()) {
            Enumeration children = getReferenceDescriptor().getInheritancePolicy().getChildDescriptors().elements();
            while (children.hasMoreElements()) {
                Enumeration mappings = ((ClassDescriptor)children.nextElement()).getMappings().elements();

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     * Write the foreign key values from the attribute to the row.
     */
    
    public void writeFromAttributeIntoRow(Object attribute, AbstractRecord row, AbstractSession session)
    {
          AbstractRecord targetRow = buildRowFromAggregate(null, attribute, session);
          for (Enumeration stream = targetRow.keys(); stream.hasMoreElements(); ) {
                  DatabaseField field = (DatabaseField) stream.nextElement();
                  Object value = targetRow.get(field);
                  row.put(field, value);
          }
    }

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oracle.toplink.essentials.internal.helper.DatabaseField

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