| /******************************************************************************** |
| * Copyright (c) 2015-2019 Contributors to the Eclipse Foundation |
| * |
| * See the NOTICE file(s) distributed with this work for additional |
| * information regarding copyright ownership. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| ********************************************************************************/ |
| |
| package org.eclipse.mdm.api.base; |
| |
| import org.eclipse.mdm.api.base.adapter.Attribute; |
| import org.eclipse.mdm.api.base.adapter.EntityType; |
| import org.eclipse.mdm.api.base.adapter.Relation; |
| import org.eclipse.mdm.api.base.adapter.RelationType; |
| |
| public class RelationImpl implements Relation { |
| |
| public enum AttributeType { |
| ID, UNKNOWN; |
| } |
| |
| AttributeType type; |
| |
| public RelationImpl(AttributeType type) { |
| this.type = type; |
| } |
| |
| @Override |
| public String getName() { |
| return type.name(); |
| } |
| |
| @Override |
| public EntityType getSource() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public EntityType getTarget() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public RelationType getRelationType() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public Attribute getAttribute() { |
| switch (type) { |
| case ID: |
| return new AttributeImpl(AttributeImpl.Type.ID); |
| default: |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| @Override |
| public boolean isOutgoing(RelationType relationType) { |
| return true; |
| } |
| |
| @Override |
| public boolean isIncoming(RelationType relationType) { |
| return false; |
| } |
| |
| @Override |
| public boolean isNtoM() { |
| return false; |
| } |
| } |