| /* |
| * 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.beam.sdk.extensions.sql.meta; |
| |
| import java.util.List; |
| import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexNode; |
| |
| /** |
| * This default implementation of {@link BeamSqlTableFilter} interface. Assumes that predicate |
| * push-down is not supported. |
| */ |
| public final class DefaultTableFilter implements BeamSqlTableFilter { |
| private final List<RexNode> filters; |
| |
| DefaultTableFilter(List<RexNode> filters) { |
| this.filters = filters; |
| } |
| |
| /** |
| * Since predicate push-down is assumed not to be supported by default - return an unchanged list |
| * of filters to be preserved. |
| * |
| * @return Predicate {@code List<RexNode>} which are not supported. To make a single RexNode |
| * expression all of the nodes must be joined by a logical AND. |
| */ |
| @Override |
| public List<RexNode> getNotSupported() { |
| return filters; |
| } |
| } |