| /* |
| * 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.ignite.internal.table.criteria; |
| |
| import static org.apache.ignite.internal.util.CollectionUtils.nullOrEmpty; |
| |
| import java.util.Collection; |
| import org.apache.ignite.table.criteria.Column; |
| import org.apache.ignite.table.criteria.Criteria; |
| import org.apache.ignite.table.criteria.CriteriaVisitor; |
| import org.apache.ignite.table.criteria.Expression; |
| import org.apache.ignite.table.criteria.Parameter; |
| import org.apache.ignite.table.criteria.PartitionCriteria; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Column validator. |
| */ |
| class ColumnValidator implements CriteriaVisitor<Collection<String>> { |
| static final ColumnValidator INSTANCE = new ColumnValidator(); |
| |
| /** {@inheritDoc} */ |
| @Override |
| public <T> void visit(Parameter<T> argument, @Nullable Collection<String> context) { |
| // No-op. |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public <T> void visit(Column column, @Nullable Collection<String> context) { |
| String colName = column.getName(); |
| |
| if (!nullOrEmpty(context) && !context.contains(colName)) { |
| throw new IllegalArgumentException("Unexpected column name: " + colName); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public <T> void visit(Expression expression, @Nullable Collection<String> context) { |
| for (Criteria element : expression.getElements()) { |
| element.accept(this, context); |
| } |
| } |
| |
| @Override |
| public void visit(PartitionCriteria partition, @Nullable Collection<String> context) { |
| // No-op. |
| } |
| |
| @Override |
| public <T> void visit(Criteria criteria, @Nullable Collection<String> context) { |
| criteria.accept(this, context); |
| } |
| } |