| /* |
| * 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.hugegraph.backend.store.hbase; |
| |
| import org.apache.hugegraph.backend.store.BackendFeatures; |
| |
| public class HbaseFeatures implements BackendFeatures { |
| |
| private boolean enablePartition; |
| |
| public HbaseFeatures(boolean enablePartition) { |
| this.enablePartition = enablePartition; |
| } |
| |
| @Override |
| public boolean supportsScanToken() { |
| return false; |
| } |
| |
| @Override |
| public boolean supportsScanKeyPrefix() { |
| return !this.enablePartition; |
| } |
| |
| @Override |
| public boolean supportsScanKeyRange() { |
| return !this.enablePartition; |
| } |
| |
| @Override |
| public boolean supportsQuerySchemaByName() { |
| // TODO: Supports this feature through HBase secondary index |
| return false; |
| } |
| |
| @Override |
| public boolean supportsQueryByLabel() { |
| // TODO: Supports this feature through HBase secondary index |
| return false; |
| } |
| |
| @Override |
| public boolean supportsQueryWithInCondition() { |
| return false; |
| } |
| |
| @Override |
| public boolean supportsQueryWithRangeCondition() { |
| return true; |
| } |
| |
| @Override |
| public boolean supportsQuerySortByInputIds() { |
| return true; |
| } |
| |
| @Override |
| public boolean supportsQueryWithOrderBy() { |
| return true; |
| } |
| |
| @Override |
| public boolean supportsQueryWithContains() { |
| // TODO: Need to traversal all items |
| return false; |
| } |
| |
| @Override |
| public boolean supportsQueryWithContainsKey() { |
| // TODO: Need to traversal all items |
| return false; |
| } |
| |
| @Override |
| public boolean supportsQueryByPage() { |
| return true; |
| } |
| |
| @Override |
| public boolean supportsDeleteEdgeByLabel() { |
| // TODO: Supports this feature through HBase secondary index |
| return false; |
| } |
| |
| @Override |
| public boolean supportsUpdateVertexProperty() { |
| // Vertex properties are stored in a cell(column value) |
| return false; |
| } |
| |
| @Override |
| public boolean supportsMergeVertexProperty() { |
| return false; |
| } |
| |
| @Override |
| public boolean supportsUpdateEdgeProperty() { |
| // Edge properties are stored in a cell(column value) |
| return false; |
| } |
| |
| @Override |
| public boolean supportsTransaction() { |
| // TODO: Supports tx through BufferedMutator and range-lock |
| return false; |
| } |
| |
| @Override |
| public boolean supportsNumberType() { |
| return false; |
| } |
| |
| @Override |
| public boolean supportsAggregateProperty() { |
| return false; |
| } |
| |
| @Override |
| public boolean supportsTtl() { |
| return true; |
| } |
| |
| @Override |
| public boolean supportsOlapProperties() { |
| return false; |
| } |
| } |