1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package javax.sql; 19 20 import java.sql.ResultSetMetaData; 21 import java.sql.SQLException; 22 23 /** 24 * An interface which provides facilities for getting information about the 25 * columns in a {@code RowSet}. 26 * <p> 27 * {@code RowSetMetaData} extends {@link java.sql.ResultSetMetaData}, adding new 28 * operations for carrying out value sets. 29 * <p> 30 * Application code would not normally call this interface directly. It would be 31 * called internally when {@code RowSet.execute} is called. 32 * 33 * @see RowSetInternal#setMetaData(RowSetMetaData) 34 */ 35 public interface RowSetMetaData extends ResultSetMetaData { 36 37 /** 38 * Sets automatic numbering for a specified column in the {@code RowSet}. If 39 * automatic numbering is on, the column is read-only. The default value for 40 * the auto increment parameter is {@code false}. 41 * 42 * @param columnIndex 43 * the index number for the column; the first column's index is 44 * 1. 45 * @param autoIncrement 46 * {@code true} to set automatic numbering on, {@code false} to 47 * turn it off (default). 48 * @throws SQLException 49 * if a problem occurs accessing the database. 50 */ 51 public void setAutoIncrement(int columnIndex, boolean autoIncrement) 52 throws SQLException; 53 54 /** 55 * Sets the case sensitive property for a specified column in the {@code 56 * RowSet}. The default is that the column is not case sensitive. 57 * 58 * @param columnIndex 59 * the index number for the column; the first column's index is 60 * 1. 61 * @param caseSensitive 62 * {@code true} to make the column case sensitive, {@code false} 63 * to make it case insensitive (default). 64 * @throws SQLException 65 * if a problem occurs accessing the database. 66 */ 67 public void setCaseSensitive(int columnIndex, boolean caseSensitive) 68 throws SQLException; 69 70 /** 71 * Sets the catalog name for a specified column in the {@code RowSet}. 72 * 73 * @param columnIndex 74 * the index number for the column; the first column's index is 75 * 1. 76 * @param catalogName 77 * the new catalog's name. 78 * @throws SQLException 79 * if a problem occurs accessing the database. 80 */ 81 public void setCatalogName(int columnIndex, String catalogName) 82 throws SQLException; 83 84 /** 85 * Sets the number of columns contained in the row set. 86 * 87 * @param columnCount 88 * the number of columns contained in the {@code RowSet}. 89 * @throws SQLException 90 * if a problem occurs accessing the database. 91 */ 92 public void setColumnCount(int columnCount) throws SQLException; 93 94 /** 95 * Sets the normal maximum width in characters for a specified column in the 96 * {@code RowSet}. 97 * 98 * @param columnIndex 99 * the index number for the column; the first column's index is 100 * 1. 101 * @param displaySize 102 * the normal maximum column width in characters. 103 * @throws SQLException 104 * if a problem occurs accessing the database. 105 */ 106 public void setColumnDisplaySize(int columnIndex, int displaySize) 107 throws SQLException; 108 109 /** 110 * Sets the suggested name as label for the column contained in the {@code 111 * RowSet}. The label is an alias for printing and displaying purposes. 112 * 113 * @param columnIndex 114 * the index number for the column; the first column's index is 115 * 1. 116 * @param theLabel 117 * the alias name for the column. 118 * @throws SQLException 119 * if a problem occurs accessing the database. 120 */ 121 public void setColumnLabel(int columnIndex, String theLabel) 122 throws SQLException; 123 124 /** 125 * Sets the column name for a specified column in the {@code RowSet}. 126 * 127 * @param columnIndex 128 * the index number for the column; the first column's index is 129 * 1. 130 * @param theColumnName 131 * the column's label. 132 * @throws SQLException 133 * if a problem occurs accessing the database. 134 */ 135 public void setColumnName(int columnIndex, String theColumnName) 136 throws SQLException; 137 138 /** 139 * Sets the SQL type for a specified column in the {@code RowSet}. 140 * 141 * @param columnIndex 142 * the index number for the column; the first column's index is 143 * 1. 144 * @param theSQLType 145 * the SQL Type, as defined by {@code java.sql.Types}. 146 * @throws SQLException 147 * if a problem occurs accessing the database. 148 */ 149 public void setColumnType(int columnIndex, int theSQLType) 150 throws SQLException; 151 152 /** 153 * Sets the type name for a specified column in the {@code RowSet}, where 154 * the data type is specific to the data source. 155 * 156 * @param columnIndex 157 * the index number for the column; the first column's index is 158 * 1. 159 * @param theTypeName 160 * the SQL type name for the column. 161 * @throws SQLException 162 * if a problem occurs accessing the database. 163 */ 164 public void setColumnTypeName(int columnIndex, String theTypeName) 165 throws SQLException; 166 167 /** 168 * Sets whether a specified column is a currency value. The default value is 169 * {@code false}. 170 * 171 * @param columnIndex 172 * the index number for the column; the first column's index is 173 * 1. 174 * @param isCurrency 175 * {@code true} if the column should be treated as a currency 176 * value, {@code false} if it should not be treated as a currency 177 * value (default). 178 * @throws SQLException 179 * if a problem occurs accessing the database. 180 */ 181 public void setCurrency(int columnIndex, boolean isCurrency) 182 throws SQLException; 183 184 /** 185 * Sets whether a specified column can contain SQL {@code NULL} values. 186 * 187 * @param columnIndex 188 * the index number for the column; the first column's index is 189 * 1. 190 * @param nullability 191 * an integer which is one of the following values: 192 * <ul> 193 * <li>{@code ResultSetMetaData.columnNoNulls}</li> 194 * <li>{@code ResultSetMetaData.columnNullable}</li> 195 * <li>{@code ResultSetMetaData.columnNullableUnknown}</li> 196 * </ul> 197 * <p> 198 * The default value is {@code 199 * ResultSetMetaData.columnNullableUnknown}. 200 * @throws SQLException 201 * if a problem occurs accessing the database. 202 */ 203 public void setNullable(int columnIndex, int nullability) 204 throws SQLException; 205 206 /** 207 * Sets the number of decimal digits for a specified column in the {@code 208 * RowSet}. 209 * 210 * @param columnIndex 211 * the index number for the column; the first column's index is 212 * 1. 213 * @param thePrecision 214 * the number of decimal digits. 215 * @throws SQLException 216 * if a problem occurs accessing the database. 217 */ 218 public void setPrecision(int columnIndex, int thePrecision) 219 throws SQLException; 220 221 /** 222 * Declares how many decimal digits there should be after a decimal point 223 * for the column specified by {@code columnIndex}. 224 * 225 * @param columnIndex 226 * the index number for the column; the first column's index is 227 * 1. 228 * @param theScale 229 * the number of digits after the decimal point. 230 * @throws SQLException 231 * if a problem occurs accessing the database. 232 */ 233 public void setScale(int columnIndex, int theScale) throws SQLException; 234 235 /** 236 * Sets the schema name for a specified column in the {@code RowSet}. 237 * 238 * @param columnIndex 239 * the index number for the column; the first column's index is 240 * 1. 241 * @param theSchemaName 242 * a {@code String} containing the schema name. 243 * @throws SQLException 244 * if a problem occurs accessing the database. 245 */ 246 public void setSchemaName(int columnIndex, String theSchemaName) 247 throws SQLException; 248 249 /** 250 * Sets whether a specified column can be used in a search involving a 251 * {@code WHERE} clause. The default value is {@code false}. 252 * 253 * @param columnIndex 254 * the index number for the column; the first column's index is 255 * 1. 256 * @param isSearchable 257 * {@code true} of the column can be used in a {@code WHERE} 258 * clause search, {@code false} otherwise. 259 * @throws SQLException 260 * if a problem occurs accessing the database. 261 */ 262 public void setSearchable(int columnIndex, boolean isSearchable) 263 throws SQLException; 264 265 /** 266 * Sets if a specified column can contain signed numbers. 267 * 268 * @param columnIndex 269 * the index number for the column; the first column's index is 270 * 1. 271 * @param isSigned 272 * {@code true} if the column can contain signed numbers, {@code 273 * false} otherwise. 274 * @throws SQLException 275 * if a problem occurs accessing the database. 276 */ 277 public void setSigned(int columnIndex, boolean isSigned) 278 throws SQLException; 279 280 /** 281 * Sets the table name for a specified column in the {@code RowSet}. 282 * 283 * @param columnIndex 284 * the index number for the column; the first column's index is 285 * 1. 286 * @param theTableName 287 * the table name for the column. 288 * @throws SQLException 289 * if a problem occurs accessing the database. 290 */ 291 public void setTableName(int columnIndex, String theTableName) 292 throws SQLException; 293 } 294
