1 /* 2 * Copyright (c) 2010, 2021, Oracle and/or its affiliates. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License, version 2.0, 6 * as published by the Free Software Foundation. 7 * 8 * This program is also distributed with certain software (including 9 * but not limited to OpenSSL) that is licensed under separate terms, 10 * as designated in a particular file or component or in included license 11 * documentation. The authors of MySQL hereby grant you an additional 12 * permission to link the program and your derivative works with the 13 * separately licensed software that they have included with MySQL. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License, version 2.0, for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 23 */ 24 25 package com.mysql.clusterj.tie; 26 27 import java.util.ArrayList; 28 import java.util.HashMap; 29 import java.util.List; 30 import java.util.Map; 31 32 import com.mysql.clusterj.core.store.Column; 33 import com.mysql.clusterj.core.store.PartitionKey; 34 import com.mysql.clusterj.core.store.Table; 35 36 import com.mysql.clusterj.core.util.I18NHelper; 37 import com.mysql.clusterj.core.util.Logger; 38 import com.mysql.clusterj.core.util.LoggerFactoryService; 39 40 import com.mysql.ndbjtie.ndbapi.NdbDictionary.ColumnConst; 41 import com.mysql.ndbjtie.ndbapi.NdbDictionary.TableConst; 42 43 /** 44 * 45 */ 46 class TableImpl implements Table { 47 48 /** My message translator */ 49 static final I18NHelper local = I18NHelper 50 .getInstance(TableImpl.class); 51 52 /** My logger */ 53 static final Logger logger = LoggerFactoryService.getFactory() 54 .getInstance(TableImpl.class); 55 56 /** The TableConst wrapped by this */ 57 protected TableConst ndbTable; 58 59 /** The table name */ 60 private String tableName; 61 62 /** The column names */ 63 private String[] columnNames; 64 65 /** The primary key column names */ 66 private String[] primaryKeyColumnNames; 67 68 /** The partition key column names */ 69 private String[] partitionKeyColumnNames; 70 71 /** The columns in this table */ 72 private Map<String, ColumnImpl> columns = new HashMap<String, ColumnImpl>(); 73 74 /** The index names for this table */ 75 private String[] indexNames; 76 77 /** The array of lengths of column space indexed by column id */ 78 private int[] lengths; 79 80 /** The array of offsets of column space indexed by column id */ 81 private int[] offsets; 82 83 /** The total size of buffer needed for all columns */ 84 private int bufferSize; 85 86 /** The maximum column id */ 87 private int maximumColumnId; 88 89 /** The maximum column length */ 90 private int maximumColumnLength = 0; 91 92 /** The autoincrement column */ 93 private Column autoIncrementColumn = null; 94 TableImpl(TableConst ndbTable, String[] indexNames)95 public TableImpl(TableConst ndbTable, String[] indexNames) { 96 this.ndbTable = ndbTable; 97 this.tableName = ndbTable.getName(); 98 // process columns and partition key columns 99 List<String> partitionKeyColumnNameList = new ArrayList<String>(); 100 List<String> primaryKeyColumnNameList = new ArrayList<String>(); 101 102 int noOfColumns = ndbTable.getNoOfColumns(); 103 ColumnImpl[] columnImpls = new ColumnImpl[noOfColumns]; 104 columnNames = new String[noOfColumns]; 105 for (int i = 0; i < noOfColumns; ++i) { 106 ColumnConst ndbColumn = ndbTable.getColumn(i); 107 // primary key and partition key columns are listed in the order declared in the schema 108 if (ndbColumn.getPartitionKey()) { 109 partitionKeyColumnNameList.add(ndbColumn.getName()); 110 } 111 if (ndbColumn.getPrimaryKey()) { 112 primaryKeyColumnNameList.add(ndbColumn.getName()); 113 } 114 String columnName = ndbColumn.getName(); 115 ColumnImpl columnImpl = new ColumnImpl(tableName, ndbColumn); 116 if (ndbColumn.getAutoIncrement()) { 117 autoIncrementColumn = columnImpl; 118 } 119 columns.put(columnName, columnImpl); 120 columnImpls[i] = columnImpl; 121 columnNames[i] = columnName; 122 // find maximum column id 123 int columnId = ndbColumn.getColumnNo(); 124 if (columnId > maximumColumnId) { 125 maximumColumnId = columnId; 126 } 127 } 128 // iterate columns again and construct layout of record in memory 129 offsets = new int[maximumColumnId + 1]; 130 lengths = new int[maximumColumnId + 1]; 131 int offset = 0; 132 for (int i = 0; i < noOfColumns; ++i) { 133 ColumnImpl columnImpl = columnImpls[i]; 134 int columnId = columnImpl.getColumnId(); 135 int columnSpace = columnImpl.getColumnSpace(); 136 lengths[columnId] = columnSpace; 137 offsets[columnId] = offset; 138 offset += columnSpace; 139 if (columnSpace > maximumColumnLength ) { 140 maximumColumnLength = columnSpace; 141 } 142 } 143 bufferSize = offset; 144 this.primaryKeyColumnNames = 145 primaryKeyColumnNameList.toArray(new String[primaryKeyColumnNameList.size()]); 146 this.partitionKeyColumnNames = 147 partitionKeyColumnNameList.toArray(new String[partitionKeyColumnNameList.size()]); 148 this.indexNames = indexNames; 149 } 150 getAutoIncrementColumn()151 public Column getAutoIncrementColumn() { 152 return autoIncrementColumn; 153 } getColumn(String columnName)154 public Column getColumn(String columnName) { 155 return columns.get(columnName); 156 } 157 getName()158 public String getName() { 159 return tableName; 160 } 161 getPrimaryKeyColumnNames()162 public String[] getPrimaryKeyColumnNames() { 163 return primaryKeyColumnNames; 164 } 165 getPartitionKeyColumnNames()166 public String[] getPartitionKeyColumnNames() { 167 return partitionKeyColumnNames; 168 } 169 createPartitionKey()170 public PartitionKey createPartitionKey() { 171 PartitionKeyImpl result = new PartitionKeyImpl(); 172 result.setTable(tableName); 173 return result; 174 } 175 getIndexNames()176 public String[] getIndexNames() { 177 return indexNames; 178 } 179 getColumnNames()180 public String[] getColumnNames() { 181 return columnNames; 182 } 183 getMaximumColumnId()184 public int getMaximumColumnId() { 185 return maximumColumnId; 186 } 187 getBufferSize()188 public int getBufferSize() { 189 return bufferSize; 190 } 191 getOffsets()192 public int[] getOffsets() { 193 return offsets; 194 } 195 getLengths()196 public int[] getLengths() { 197 return lengths; 198 } 199 getMaximumColumnLength()200 public int getMaximumColumnLength() { 201 return maximumColumnLength; 202 } 203 204 } 205