| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.vxquery.metadata; |
| |
| import java.util.List; |
| |
| import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSource; |
| import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSourcePropertiesProvider; |
| import org.apache.hyracks.algebricks.core.algebra.properties.INodeDomain; |
| |
| public abstract class AbstractVXQueryDataSource implements IDataSource<String> { |
| protected static final String DELIMITER = "\\|"; |
| protected int dataSourceId; |
| protected String collectionName; |
| protected String[] collectionPartitions; |
| protected String elementPath; |
| protected List<Integer> childSeq; |
| protected int totalDataSources; |
| protected String tag; |
| protected String function; |
| |
| protected Object[] types; |
| |
| protected IDataSourcePropertiesProvider propProvider; |
| |
| public abstract String getFunctionCall(); |
| |
| @Override |
| public boolean isScanAccessPathALeaf() { |
| // TODO Auto-generated method stub |
| return false; |
| } |
| |
| @Override |
| public INodeDomain getDomain() { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| } |