/** INTERNAL: Get a value from the object and set that in the respective field of the row. */ @Override public void writeFromObjectIntoRowForWhereClause( ObjectLevelModifyQuery query, AbstractRecord record) { if (isReadOnly()) { return; } Object object; if (query.isDeleteObjectQuery()) { object = query.getObject(); } else { object = query.getBackupClone(); } Object referenceObject = getRealAttributeValueFromObject(object, query.getSession()); if (referenceObject == null) { writeFromNullObjectIntoRow(record); } else { if (isForeignKeyRelationship()) { Enumeration sourceFields = getForeignKeyFields().elements(); ClassDescriptor descriptor = query.getSession().getDescriptor(referenceObject.getClass()); while (sourceFields.hasMoreElements()) { DatabaseField sourceKey = (DatabaseField) sourceFields.nextElement(); String targetQueryKey = (String) getSourceToTargetQueryKeyNames().get(sourceKey); DatabaseField targetKeyField = descriptor.getObjectBuilder().getFieldForQueryKeyName(targetQueryKey); if (targetKeyField == null) { throw DescriptorException.variableOneToOneMappingIsNotDefinedProperly( this, descriptor, targetQueryKey); } Object referenceValue = descriptor .getObjectBuilder() .extractValueFromObjectForField( referenceObject, targetKeyField, query.getSession()); record.put(sourceKey, referenceValue); } } if (getTypeField() != null) { record.put(getTypeField(), getTypeForImplementor(referenceObject.getClass())); } } }
/** INTERNAL: Initialize the mapping. */ public void initialize(AbstractSession session) throws DescriptorException { setReferenceDescriptor(session.getDescriptor(getReferenceClass())); if (referenceDescriptor == null) { throw DescriptorException.descriptorIsMissing(getReferenceClass().getName(), this); } // For bug 2730536 convert the field to be an ObjectRelationalDatabaseField. ObjectRelationalDatabaseField field = (ObjectRelationalDatabaseField) getField(); field.setSqlType(java.sql.Types.REF); if (referenceDescriptor instanceof ObjectRelationalDataTypeDescriptor) { field.setSqlTypeName( ((ObjectRelationalDataTypeDescriptor) referenceDescriptor).getStructureName()); } setField(getDescriptor().buildField(getField())); setFields(collectFields()); // Ref mapping requires native connection in WLS as the Ref is wrapped. getDescriptor().setIsNativeConnectionRequired(true); }
/** * INTERNAL: Get a value from the object and set that in the respective field of the row. If the * mapping id target foreign key, you must only write the type into the roe, the rest will be * updated when the object itself is written */ @Override public void writeFromObjectIntoRowWithChangeRecord( ChangeRecord changeRecord, AbstractRecord record, AbstractSession session) { if (isReadOnly()) { return; } ObjectChangeSet changeSet = (ObjectChangeSet) ((ObjectReferenceChangeRecord) changeRecord).getNewValue(); if (changeSet == null) { writeFromNullObjectIntoRow(record); } else { Object referenceObject = changeSet.getUnitOfWorkClone(); if (isForeignKeyRelationship()) { Enumeration sourceFields = getForeignKeyFields().elements(); ClassDescriptor descriptor = session.getDescriptor(referenceObject.getClass()); while (sourceFields.hasMoreElements()) { DatabaseField sourceKey = (DatabaseField) sourceFields.nextElement(); String targetQueryKey = (String) getSourceToTargetQueryKeyNames().get(sourceKey); DatabaseField targetKeyField = descriptor.getObjectBuilder().getFieldForQueryKeyName(targetQueryKey); if (targetKeyField == null) { throw DescriptorException.variableOneToOneMappingIsNotDefinedProperly( this, descriptor, targetQueryKey); } Object referenceValue = descriptor .getObjectBuilder() .extractValueFromObjectForField(referenceObject, targetKeyField, session); record.put(sourceKey, referenceValue); } } if (getTypeField() != null) { record.put(getTypeField(), getTypeForImplementor(referenceObject.getClass())); } } }