| // 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.impala.analysis; |
| |
| import org.apache.impala.common.AnalysisException; |
| |
| /** |
| * Base interface for statements and statement-like nodes such as clauses. |
| */ |
| public abstract class StmtNode implements ParseNode { |
| |
| /** |
| * Perform semantic analysis of node and all of its children. |
| * @throws AnalysisException if any semantic errors were found |
| */ |
| public abstract void analyze(Analyzer analyzer) throws AnalysisException; |
| |
| /** |
| * By default, table masking is not performed. When authorization is enabled and |
| * tbe base table/view has column-masking / row-filtering policies, the table ref |
| * will be masked by a table masking view. Called after analyze(). |
| */ |
| public boolean resolveTableMask(Analyzer analyzer) throws AnalysisException { |
| // Don't apply table mask by default. |
| return false; |
| } |
| } |
