public static TransformationMetadata example1(boolean allUpdatable) {
MetadataStore metadataStore = new MetadataStore();
// Create models
Schema pm1 = RealMetadataFactory.createPhysicalModel("pm1", metadataStore); //$NON-NLS-1$
Schema vm1 = RealMetadataFactory.createVirtualModel("vm1", metadataStore); //$NON-NLS-1$
// Create physical groups
Table pm1g1 = RealMetadataFactory.createPhysicalGroup("g1", pm1); //$NON-NLS-1$
Table pm1g2 = RealMetadataFactory.createPhysicalGroup("g2", pm1); //$NON-NLS-1$
Table pm1g3 = RealMetadataFactory.createPhysicalGroup("g3", pm1); //$NON-NLS-1$