| /* |
| * 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; |
| |
| import java.util.Objects; |
| import org.apache.ignite.internal.schema.Column; |
| import org.apache.ignite.internal.schema.SchemaAware; |
| import org.apache.ignite.internal.schema.SchemaDescriptor; |
| import org.apache.ignite.internal.schema.row.Row; |
| import org.apache.ignite.table.Tuple; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Row to Tuple adapter. |
| * <p> |
| * Provides methods to access columns values by column names. |
| */ |
| public class TableRow extends RowChunkAdapter implements SchemaAware { |
| /** Schema. */ |
| private final SchemaDescriptor schema; |
| |
| /** Row. */ |
| private final Row row; |
| |
| /** |
| * Constructor. |
| * |
| * @param schema Schema descriptor. |
| * @param row Row. |
| */ |
| public TableRow(SchemaDescriptor schema, Row row) { |
| assert schema.version() == row.schemaVersion(); |
| |
| this.schema = schema; |
| this.row = row; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override @NotNull protected final Column columnByName(@NotNull String colName) { |
| Objects.requireNonNull(colName); |
| |
| final Column col = schema.column(colName); |
| |
| if (col == null) |
| throw new ColumnNotFoundException("Invalid column name: columnName=" + colName + ", schemaVersion=" + schema.version()); |
| |
| return col; |
| } |
| |
| /** |
| * @return Key chunk. |
| */ |
| public Tuple keyChunk() { |
| return new KeyRowChunk(); |
| } |
| |
| /** |
| * @return Value chunk. |
| */ |
| public @Nullable Tuple valueChunk() { |
| return row.hasValue() ? new ValueRowChunk() : null; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected Row row() { |
| return row; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public SchemaDescriptor schema() { |
| return schema; |
| } |
| |
| /** Key column chunk. */ |
| private class KeyRowChunk extends RowChunkAdapter implements SchemaAware { |
| /** {@inheritDoc} */ |
| @Override protected Row row() { |
| return row; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected @NotNull Column columnByName(@NotNull String colName) { |
| Objects.requireNonNull(colName); |
| |
| final Column col = schema.column(colName); |
| |
| if (col == null || !schema.isKeyColumn(col.schemaIndex())) |
| throw new ColumnNotFoundException("Invalid key column name: columnName=" + colName + ", schemaVersion=" + schema.version()); |
| |
| return col; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public SchemaDescriptor schema() { |
| return schema; |
| } |
| } |
| |
| /** Value column chunk. */ |
| private class ValueRowChunk extends RowChunkAdapter { |
| /** {@inheritDoc} */ |
| @Override protected Row row() { |
| return row; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected @NotNull Column columnByName(@NotNull String colName) { |
| Objects.requireNonNull(colName); |
| |
| final Column col = schema.column(colName); |
| |
| if (col == null || schema.isKeyColumn(col.schemaIndex())) |
| throw new ColumnNotFoundException("Invalid value column name: columnName=" + colName + ", schemaVersion=" + schema.version()); |
| |
| return col; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public SchemaDescriptor schema() { |
| return schema; |
| } |
| } |
| } |