| /* |
| * 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.storage.index; |
| |
| import static java.util.stream.Collectors.toList; |
| import static org.apache.ignite.internal.storage.index.StorageIndexDescriptor.getNativeType; |
| |
| import java.util.List; |
| import org.apache.ignite.internal.catalog.descriptors.CatalogHashIndexDescriptor; |
| import org.apache.ignite.internal.catalog.descriptors.CatalogTableColumnDescriptor; |
| import org.apache.ignite.internal.catalog.descriptors.CatalogTableDescriptor; |
| import org.apache.ignite.internal.tostring.IgniteToStringInclude; |
| import org.apache.ignite.internal.tostring.S; |
| import org.apache.ignite.internal.type.NativeType; |
| |
| /** |
| * Descriptor for creating a Hash Index Storage. |
| * |
| * @see HashIndexStorage |
| */ |
| public class StorageHashIndexDescriptor implements StorageIndexDescriptor { |
| /** |
| * Descriptor of a Hash Index column. |
| */ |
| public static class StorageHashIndexColumnDescriptor implements StorageColumnDescriptor { |
| private final String name; |
| |
| @IgniteToStringInclude |
| private final NativeType type; |
| |
| private final boolean nullable; |
| |
| /** |
| * Creates a Column Descriptor. |
| * |
| * @param name Name of the column. |
| * @param type Type of the column. |
| * @param nullable Flag indicating that the column may contain {@code null}s. |
| */ |
| public StorageHashIndexColumnDescriptor(String name, NativeType type, boolean nullable) { |
| this.name = name; |
| this.type = type; |
| this.nullable = nullable; |
| } |
| |
| @Override |
| public String name() { |
| return name; |
| } |
| |
| @Override |
| public NativeType type() { |
| return type; |
| } |
| |
| @Override |
| public boolean nullable() { |
| return nullable; |
| } |
| |
| @Override |
| public String toString() { |
| return S.toString(this); |
| } |
| } |
| |
| private final int id; |
| |
| @IgniteToStringInclude |
| private final List<StorageHashIndexColumnDescriptor> columns; |
| |
| private final boolean pk; |
| |
| /** |
| * Constructor. |
| * |
| * @param table Catalog table descriptor. |
| * @param index Catalog index descriptor. |
| */ |
| public StorageHashIndexDescriptor(CatalogTableDescriptor table, CatalogHashIndexDescriptor index) { |
| this(index.id(), extractIndexColumnsConfiguration(table, index), table.primaryKeyIndexId() == index.id()); |
| } |
| |
| /** |
| * Creates an Index Descriptor from a given set of columns. |
| * |
| * @param indexId Index id. |
| * @param columns Columns descriptors. |
| * @param pk Primary index flag. |
| */ |
| public StorageHashIndexDescriptor(int indexId, List<StorageHashIndexColumnDescriptor> columns, boolean pk) { |
| this.id = indexId; |
| this.columns = columns; |
| this.pk = pk; |
| } |
| |
| @Override |
| public int id() { |
| return id; |
| } |
| |
| @Override |
| public List<StorageHashIndexColumnDescriptor> columns() { |
| return columns; |
| } |
| |
| @Override |
| public boolean isPk() { |
| return pk; |
| } |
| |
| @Override |
| public String toString() { |
| return S.toString(this); |
| } |
| |
| private static List<StorageHashIndexColumnDescriptor> extractIndexColumnsConfiguration( |
| CatalogTableDescriptor table, |
| CatalogHashIndexDescriptor index |
| ) { |
| assert table.id() == index.tableId() : "indexId=" + index.id() + ", tableId=" + table.id() + ", indexTableId=" + index.tableId(); |
| |
| return index.columns().stream() |
| .map(columnName -> { |
| CatalogTableColumnDescriptor column = table.column(columnName); |
| |
| assert column != null : "indexId=" + index.id() + ", columnName=" + columnName; |
| |
| return new StorageHashIndexColumnDescriptor(column.name(), getNativeType(column), column.nullable()); |
| }) |
| .collect(toList()); |
| } |
| } |