| Clover coverage report - gsbase - 2.0.1 |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| ConnectionWrapper.java | 72.2% | 90.3% | 90.9% | 88.8% |
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| 1 | /* | |
| 2 | * Copyright (c) 1998, 2005 Gargoyle Software Inc. All rights reserved. | |
| 3 | * | |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions are met: | |
| 6 | * | |
| 7 | * 1. Redistributions of source code must retain the above copyright notice, | |
| 8 | * this list of conditions and the following disclaimer. | |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 10 | * this list of conditions and the following disclaimer in the documentation | |
| 11 | * and/or other materials provided with the distribution. | |
| 12 | * 3. The end-user documentation included with the redistribution, if any, must | |
| 13 | * include the following acknowledgment: | |
| 14 | * | |
| 15 | * "This product includes software developed by Gargoyle Software Inc. | |
| 16 | * (http://www.GargoyleSoftware.com/)." | |
| 17 | * | |
| 18 | * Alternately, this acknowledgment may appear in the software itself, if | |
| 19 | * and wherever such third-party acknowledgments normally appear. | |
| 20 | * 4. The name "Gargoyle Software" must not be used to endorse or promote | |
| 21 | * products derived from this software without prior written permission. | |
| 22 | * For written permission, please contact info@GargoyleSoftware.com. | |
| 23 | * 5. Products derived from this software may not be called "GSBase", nor may | |
| 24 | * "GSBase" appear in their name, without prior written permission of | |
| 25 | * Gargoyle Software Inc. | |
| 26 | * | |
| 27 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, | |
| 28 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 29 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE | |
| 30 | * SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 31 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 32 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
| 33 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| 36 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 37 | */ | |
| 38 | package com.gargoylesoftware.base.resource.jdbc; | |
| 39 | ||
| 40 | import com.gargoylesoftware.base.resource.ManagedResource; | |
| 41 | import java.sql.CallableStatement; | |
| 42 | import java.sql.Connection; | |
| 43 | import java.sql.DatabaseMetaData; | |
| 44 | import java.sql.PreparedStatement; | |
| 45 | import java.sql.Savepoint; | |
| 46 | import java.sql.SQLException; | |
| 47 | import java.sql.SQLWarning; | |
| 48 | import java.sql.Statement; | |
| 49 | import java.util.ArrayList; | |
| 50 | import java.util.Collections; | |
| 51 | import java.util.Iterator; | |
| 52 | import java.util.List; | |
| 53 | import java.util.Map; | |
| 54 | ||
| 55 | /** | |
| 56 | * A wrapper for java.sql.Connection objects.<p> | |
| 57 | * | |
| 58 | * The contract with JDBC says that result sets must be closed before | |
| 59 | * statements and statements must be closed before connections but java does | |
| 60 | * not enforce this contract. It is quite possible to close a connection while | |
| 61 | * statements and result sets are still open. While some database drivers | |
| 62 | * handle this condition nicely, others will start failing in undefined ways | |
| 63 | * when this happens.<p> | |
| 64 | * | |
| 65 | * This wrapper class is a solution to this problem. If the connection is only | |
| 66 | * accessed through the wrapper then the wrapper will ensure that everything is | |
| 67 | * closed in the correct order. It will also ensure that the various jdbc | |
| 68 | * objects (connections, statements, result sets and metadata) cannot be used | |
| 69 | * after they are closed.<p> | |
| 70 | * | |
| 71 | * This class was created for the {@link JDBCResourceFactory} but can be used | |
| 72 | * by itself. | |
| 73 | * | |
| 74 | * @version $Revision: 1.5 $ | |
| 75 | * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a> | |
| 76 | */ | |
| 77 | public final class ConnectionWrapper implements Connection, ManagedResource { | |
| 78 | ||
| 79 | private Connection delegate_ = null; | |
| 80 | private boolean isOpen_ = true; | |
| 81 | private String resourceFactoryName_; | |
| 82 | ||
| 83 | private final List openStatements_ = Collections.synchronizedList(new ArrayList()); | |
| 84 | private final List openDatabaseMetaData_ = Collections.synchronizedList(new ArrayList()); | |
| 85 | ||
| 86 | ||
| 87 | /** | |
| 88 | * Create a new connection wrapper | |
| 89 | * | |
| 90 | * @param connection The connection that we are wrapping | |
| 91 | */ | |
| 92 | 44 | public ConnectionWrapper( final Connection connection ) { |
| 93 | 44 | if( connection == null ) { |
| 94 | 1 | throw new NullPointerException(); |
| 95 | } | |
| 96 | 43 | delegate_ = connection; |
| 97 | } | |
| 98 | ||
| 99 | ||
| 100 | /** | |
| 101 | * Set the name of the factory that allocated this connection | |
| 102 | * | |
| 103 | * @param name The name of the factory | |
| 104 | */ | |
| 105 | 0 | public final void setResourceFactoryName( final String name ) { |
| 106 | 0 | resourceFactoryName_ = name; |
| 107 | } | |
| 108 | ||
| 109 | ||
| 110 | /** | |
| 111 | * Sets this connection's auto-commit mode. If a connection is in | |
| 112 | * auto-commit mode, then all its SQL statements will be executed and | |
| 113 | * committed as individual transactions. Otherwise, its SQL statements are | |
| 114 | * grouped into transactions that are terminated by a call to either the | |
| 115 | * method <code>commit</code> or the method <code>rollback</code>. By | |
| 116 | * default, new connections are in auto-commit mode. <p> | |
| 117 | * | |
| 118 | * The commit occurs when the statement completes or the next execute | |
| 119 | * occurs, whichever comes first. In the case of statements returning a | |
| 120 | * ResultSet, the statement completes when the last row of the ResultSet | |
| 121 | * has been retrieved or the ResultSet has been closed. In advanced cases, | |
| 122 | * a single statement may return multiple results as well as output | |
| 123 | * parameter values. In these cases the commit occurs when all results and | |
| 124 | * output parameter values have been retrieved. | |
| 125 | * | |
| 126 | * @param autoCommit true enables auto-commit; false disables auto-commit. | |
| 127 | * @exception SQLException if a database access error occurs | |
| 128 | */ | |
| 129 | 2 | public void setAutoCommit( boolean autoCommit ) |
| 130 | throws SQLException { | |
| 131 | 2 | checkConnection(); |
| 132 | 1 | delegate_.setAutoCommit( autoCommit ); |
| 133 | } | |
| 134 | ||
| 135 | ||
| 136 | /** | |
| 137 | * Puts this connection in read-only mode as a hint to enable database | |
| 138 | * optimizations. <P> | |
| 139 | * | |
| 140 | * <B>Note:</B> This method cannot be called while in the middle of a | |
| 141 | * transaction. | |
| 142 | * | |
| 143 | * @param readOnly true enables read-only mode; false disables read-only | |
| 144 | * mode. | |
| 145 | * @exception SQLException if a database access error occurs | |
| 146 | */ | |
| 147 | 2 | public void setReadOnly( boolean readOnly ) |
| 148 | throws SQLException { | |
| 149 | 2 | checkConnection(); |
| 150 | 1 | delegate_.setReadOnly( readOnly ); |
| 151 | } | |
| 152 | ||
| 153 | ||
| 154 | /** | |
| 155 | * Sets a catalog name in order to select a subspace of this Connection's | |
| 156 | * database in which to work. If the driver does not support catalogs, it | |
| 157 | * will silently ignore this request. | |
| 158 | * | |
| 159 | * @param catalog The catalog name | |
| 160 | * @exception SQLException if a database access error occurs | |
| 161 | */ | |
| 162 | 2 | public void setCatalog( String catalog ) |
| 163 | throws SQLException { | |
| 164 | 2 | checkConnection(); |
| 165 | 1 | delegate_.setCatalog( catalog ); |
| 166 | } | |
| 167 | ||
| 168 | ||
| 169 | /** | |
| 170 | * Attempts to change the transaction isolation level to the one given. The | |
| 171 | * constants defined in the interface <code>Connection</code> are the | |
| 172 | * possible transaction isolation levels. <P> | |
| 173 | * | |
| 174 | * <B>Note:</B> This method cannot be called while in the middle of a | |
| 175 | * transaction. | |
| 176 | * | |
| 177 | * @param level one of the TRANSACTION_* isolation values with the | |
| 178 | * exception of TRANSACTION_NONE; some databases may not support other | |
| 179 | * values | |
| 180 | * @exception SQLException if a database access error occurs | |
| 181 | */ | |
| 182 | 2 | public void setTransactionIsolation( int level ) |
| 183 | throws SQLException { | |
| 184 | 2 | checkConnection(); |
| 185 | 1 | delegate_.setTransactionIsolation( level ); |
| 186 | } | |
| 187 | ||
| 188 | ||
| 189 | /** | |
| 190 | * Installs the given type map as the type map for this connection. The | |
| 191 | * type map will be used for the custom mapping of SQL structured types and | |
| 192 | * distinct types. | |
| 193 | * | |
| 194 | * @param map the <code>java.util.Map</code> object to install as the | |
| 195 | * replacement for this <code>Connection</code> object's default type | |
| 196 | * map | |
| 197 | * @exception SQLException If a sql error occurs | |
| 198 | * @since 1.2 | |
| 199 | */ | |
| 200 | 2 | public void setTypeMap( final Map map ) |
| 201 | throws SQLException { | |
| 202 | 2 | checkConnection(); |
| 203 | 1 | delegate_.setTypeMap( map ); |
| 204 | } | |
| 205 | ||
| 206 | ||
| 207 | /** | |
| 208 | * Return the name of the factory that allocated this connection | |
| 209 | * | |
| 210 | * @return The name of the factory | |
| 211 | */ | |
| 212 | 0 | public final String getResourceFactoryName() { |
| 213 | 0 | return resourceFactoryName_; |
| 214 | } | |
| 215 | ||
| 216 | ||
| 217 | /** | |
| 218 | * Return the wrapped connection | |
| 219 | * | |
| 220 | * @return The wrapped connection | |
| 221 | */ | |
| 222 | 0 | public final Connection getDelegate() { |
| 223 | 0 | return delegate_; |
| 224 | } | |
| 225 | ||
| 226 | ||
| 227 | /** | |
| 228 | * Gets the current auto-commit state. | |
| 229 | * | |
| 230 | * @return the current state of auto-commit mode | |
| 231 | * @exception SQLException if a database access error occurs | |
| 232 | * @see #setAutoCommit | |
| 233 | */ | |
| 234 | 2 | public boolean getAutoCommit() |
| 235 | throws SQLException { | |
| 236 | 2 | checkConnection(); |
| 237 | 1 | return delegate_.getAutoCommit(); |
| 238 | } | |
| 239 | ||
| 240 | ||
| 241 | /** | |
| 242 | * Tests to see if a Connection is closed. | |
| 243 | * | |
| 244 | * @return true if the connection is closed; false if it's still open | |
| 245 | * @exception SQLException if a database access error occurs | |
| 246 | */ | |
| 247 | 1 | public boolean isClosed() |
| 248 | throws SQLException { | |
| 249 | ||
| 250 | 1 | if( delegate_ == null ) { |
| 251 | 1 | return true; |
| 252 | } | |
| 253 | ||
| 254 | 0 | return delegate_.isClosed(); |
| 255 | } | |
| 256 | ||
| 257 | //====================================================================== | |
| 258 | // Advanced features: | |
| 259 | ||
| 260 | /** | |
| 261 | * Gets the metadata regarding this connection's database. A Connection's | |
| 262 | * database is able to provide information describing its tables, its | |
| 263 | * supported SQL grammar, its stored procedures, the capabilities of this | |
| 264 | * connection, and so on. This information is made available through a | |
| 265 | * DatabaseMetaData object. | |
| 266 | * | |
| 267 | * @return a DatabaseMetaData object for this Connection | |
| 268 | * @exception SQLException if a database access error occurs | |
| 269 | */ | |
| 270 | 1 | public DatabaseMetaData getMetaData() |
| 271 | throws SQLException { | |
| 272 | 1 | checkConnection(); |
| 273 | 1 | final DatabaseMetaDataWrapper wrapper |
| 274 | = new DatabaseMetaDataWrapper( delegate_.getMetaData() ); | |
| 275 | 1 | wrapper.setConnection( this ); |
| 276 | 1 | openDatabaseMetaData_.add( wrapper ); |
| 277 | 1 | return wrapper; |
| 278 | } | |
| 279 | ||
| 280 | ||
| 281 | /** | |
| 282 | * Tests to see if the connection is in read-only mode. | |
| 283 | * | |
| 284 | * @return true if connection is read-only and false otherwise | |
| 285 | * @exception SQLException if a database access error occurs | |
| 286 | */ | |
| 287 | 2 | public boolean isReadOnly() |
| 288 | throws SQLException { | |
| 289 | 2 | checkConnection(); |
| 290 | 1 | return delegate_.isReadOnly(); |
| 291 | } | |
| 292 | ||
| 293 | ||
| 294 | /** | |
| 295 | * Returns the Connection's current catalog name. | |
| 296 | * | |
| 297 | * @return the current catalog name or null | |
| 298 | * @exception SQLException if a database access error occurs | |
| 299 | */ | |
| 300 | 2 | public String getCatalog() |
| 301 | throws SQLException { | |
| 302 | 2 | checkConnection(); |
| 303 | 1 | return delegate_.getCatalog(); |
| 304 | } | |
| 305 | ||
| 306 | ||
| 307 | /** | |
| 308 | * Gets this Connection's current transaction isolation level. | |
| 309 | * | |
| 310 | * @return the current TRANSACTION_* mode value | |
| 311 | * @exception SQLException if a database access error occurs | |
| 312 | */ | |
| 313 | 2 | public int getTransactionIsolation() |
| 314 | throws SQLException { | |
| 315 | 2 | checkConnection(); |
| 316 | 1 | return delegate_.getTransactionIsolation(); |
| 317 | } | |
| 318 | ||
| 319 | ||
| 320 | /** | |
| 321 | * Returns the first warning reported by calls on this Connection. <P> | |
| 322 | * | |
| 323 | * <B>Note:</B> Subsequent warnings will be chained to this SQLWarning. | |
| 324 | * | |
| 325 | * @return the first SQLWarning or null | |
| 326 | * @exception SQLException if a database access error occurs | |
| 327 | */ | |
| 328 | 2 | public SQLWarning getWarnings() |
| 329 | throws SQLException { | |
| 330 | 2 | checkConnection(); |
| 331 | 1 | return delegate_.getWarnings(); |
| 332 | } | |
| 333 | ||
| 334 | ||
| 335 | /** | |
| 336 | * Gets the type map object associated with this connection. Unless the | |
| 337 | * application has added an entry to the type map, the map returned will be | |
| 338 | * empty. | |
| 339 | * | |
| 340 | * @return the <code>java.util.Map</code> object associated with this | |
| 341 | * <code>Connection</code> object | |
| 342 | * @exception SQLException If a sql error occurs | |
| 343 | * @since 1.2 | |
| 344 | */ | |
| 345 | 2 | public Map getTypeMap() |
| 346 | throws SQLException { | |
| 347 | 2 | checkConnection(); |
| 348 | 1 | return delegate_.getTypeMap(); |
| 349 | } | |
| 350 | ||
| 351 | ||
| 352 | /** | |
| 353 | * Creates a <code>Statement</code> object for sending SQL statements to | |
| 354 | * the database. SQL statements without parameters are normally executed | |
| 355 | * using Statement objects. If the same SQL statement is executed many | |
| 356 | * times, it is more efficient to use a <code>PreparedStatement</code> | |
| 357 | * object. <P> | |
| 358 | * | |
| 359 | * Result sets created using the returned <code>Statement</code> object | |
| 360 | * will by default have forward-only type and read-only concurrency. | |
| 361 | * | |
| 362 | * @return a new Statement object | |
| 363 | * @exception SQLException if a database access error occurs | |
| 364 | */ | |
| 365 | 4 | public Statement createStatement() |
| 366 | throws SQLException { | |
| 367 | 4 | checkConnection(); |
| 368 | 3 | final StatementWrapper wrapper = new StatementWrapper( delegate_.createStatement() ); |
| 369 | 3 | wrapper.setConnection( this ); |
| 370 | 3 | openStatements_.add( wrapper ); |
| 371 | 3 | return wrapper; |
| 372 | } | |
| 373 | ||
| 374 | ||
| 375 | /** | |
| 376 | * Creates a <code>PreparedStatement</code> object for sending | |
| 377 | * parameterized SQL statements to the database. A SQL statement with or | |
| 378 | * without IN parameters can be pre-compiled and stored in a | |
| 379 | * PreparedStatement object. This object can then be used to efficiently | |
| 380 | * execute this statement multiple times. <P> | |
| 381 | * | |
| 382 | * <B>Note:</B> This method is optimized for handling parametric SQL | |
| 383 | * statements that benefit from precompilation. If the driver supports | |
| 384 | * precompilation, the method <code>prepareStatement</code> will send the | |
| 385 | * statement to the database for precompilation. Some drivers may not | |
| 386 | * support precompilation. In this case, the statement may not be sent to | |
| 387 | * the database until the <code>PreparedStatement</code> is executed. This | |
| 388 | * has no direct effect on users; however, it does affect which method | |
| 389 | * throws certain SQLExceptions. <p> | |
| 390 | * | |
| 391 | * Result sets created using the returned PreparedStatement will have | |
| 392 | * forward-only type and read-only concurrency, by default. | |
| 393 | * | |
| 394 | * @param sql a SQL statement that may contain one or more '?' IN parameter | |
| 395 | * placeholders | |
| 396 | * @return a new PreparedStatement object containing the pre-compiled | |
| 397 | * statement | |
| 398 | * @exception SQLException if a database access error occurs | |
| 399 | */ | |
| 400 | 3 | public PreparedStatement prepareStatement( String sql ) |
| 401 | throws SQLException { | |
| 402 | 3 | checkConnection(); |
| 403 | 2 | final PreparedStatement statement = new PreparedStatementWrapper( delegate_.prepareStatement( sql ) ); |
| 404 | 2 | openStatements_.add( statement ); |
| 405 | 2 | return statement; |
| 406 | } | |
| 407 | ||
| 408 | ||
| 409 | /** | |
| 410 | * Creates a <code>CallableStatement</code> object for calling database | |
| 411 | * stored procedures. The <code>CallableStatement</code> object provides | |
| 412 | * methods for setting up its IN and OUT parameters, and methods for | |
| 413 | * executing the call to a stored procedure. <P> | |
| 414 | * | |
| 415 | * <B>Note:</B> This method is optimized for handling stored procedure call | |
| 416 | * statements. Some drivers may send the call statement to the database | |
| 417 | * when the method <code>prepareCall</code> is done; others may wait until | |
| 418 | * the <code>CallableStatement</code> object is executed. This has no | |
| 419 | * direct effect on users; however, it does affect which method throws | |
| 420 | * certain SQLExceptions. Result sets created using the returned | |
| 421 | * CallableStatement will have forward-only type and read-only concurrency, | |
| 422 | * by default. | |
| 423 | * | |
| 424 | * @param sql a SQL statement that may contain one or more '?' parameter | |
| 425 | * placeholders. Typically this statement is a JDBC function call | |
| 426 | * escape string. | |
| 427 | * @return a new CallableStatement object containing the pre-compiled SQL | |
| 428 | * statement | |
| 429 | * @exception SQLException if a database access error occurs | |
| 430 | */ | |
| 431 | 3 | public CallableStatement prepareCall( String sql ) |
| 432 | throws SQLException { | |
| 433 | 3 | checkConnection(); |
| 434 | 2 | final CallableStatement statement |
| 435 | = new CallableStatementWrapper( delegate_.prepareCall( sql ) ); | |
| 436 | 2 | openStatements_.add( statement ); |
| 437 | 2 | return statement; |
| 438 | } | |
| 439 | ||
| 440 | ||
| 441 | /** | |
| 442 | * Converts the given SQL statement into the system's native SQL grammar. A | |
| 443 | * driver may convert the JDBC sql grammar into its system's native SQL | |
| 444 | * grammar prior to sending it; this method returns the native form of the | |
| 445 | * statement that the driver would have sent. | |
| 446 | * | |
| 447 | * @param sql a SQL statement that may contain one or more '?' parameter | |
| 448 | * placeholders | |
| 449 | * @return the native form of this statement | |
| 450 | * @exception SQLException if a database access error occurs | |
| 451 | */ | |
| 452 | 2 | public String nativeSQL( String sql ) |
| 453 | throws SQLException { | |
| 454 | 2 | checkConnection(); |
| 455 | 1 | return delegate_.nativeSQL( sql ); |
| 456 | } | |
| 457 | ||
| 458 | ||
| 459 | /** | |
| 460 | * Makes all changes made since the previous commit/rollback permanent and | |
| 461 | * releases any database locks currently held by the Connection. This | |
| 462 | * method should be used only when auto-commit mode has been disabled. | |
| 463 | * | |
| 464 | * @exception SQLException if a database access error occurs | |
| 465 | * @see #setAutoCommit | |
| 466 | */ | |
| 467 | 2 | public void commit() |
| 468 | throws SQLException { | |
| 469 | 2 | checkConnection(); |
| 470 | 1 | delegate_.commit(); |
| 471 | } | |
| 472 | ||
| 473 | ||
| 474 | /** | |
| 475 | * Drops all changes made since the previous commit/rollback and releases | |
| 476 | * any database locks currently held by this Connection. This method should | |
| 477 | * be used only when auto- commit has been disabled. | |
| 478 | * | |
| 479 | * @exception SQLException if a database access error occurs | |
| 480 | * @see #setAutoCommit | |
| 481 | */ | |
| 482 | 2 | public void rollback() |
| 483 | throws SQLException { | |
| 484 | 2 | checkConnection(); |
| 485 | 1 | delegate_.rollback(); |
| 486 | } | |
| 487 | ||
| 488 | ||
| 489 | /** | |
| 490 | * Releases a Connection's database and JDBC resources immediately instead | |
| 491 | * of waiting for them to be automatically released. <P> | |
| 492 | * | |
| 493 | * <B>Note:</B> A Connection is automatically closed when it is garbage | |
| 494 | * collected. Certain fatal errors also result in a closed Connection. | |
| 495 | * | |
| 496 | * @exception SQLException if a database access error occurs | |
| 497 | */ | |
| 498 | 44 | public void close() |
| 499 | throws SQLException { | |
| 500 | 44 | if( isOpen_ ) { |
| 501 | 43 | closeAnyOpenStatements(); |
| 502 | 43 | closeAnyOpenMetaDatas(); |
| 503 | ||
| 504 | 43 | delegate_.close(); |
| 505 | 43 | delegate_ = null; |
| 506 | } | |
| 507 | else { | |
| 508 | 1 | throw new AlreadyClosedException( "Connection is closed" ); |
| 509 | } | |
| 510 | 43 | isOpen_ = false; |
| 511 | } | |
| 512 | ||
| 513 | ||
| 514 | /** | |
| 515 | * Close any open statements | |
| 516 | * | |
| 517 | * @exception SQLException If an error occurs | |
| 518 | */ | |
| 519 | 43 | public void closeAnyOpenStatements() |
| 520 | throws SQLException { | |
| 521 | 43 | StatementWrapper statement; |
| 522 | 43 | Iterator iterator = openStatements_.iterator(); |
| 523 | 43 | while( iterator.hasNext() ) { |
| 524 | 19 | statement = ( StatementWrapper )iterator.next(); |
| 525 | 19 | if( statement.isClosed() == false ) { |
| 526 | 18 | statement.close(); |
| 527 | } | |
| 528 | } | |
| 529 | 43 | openStatements_.clear(); |
| 530 | } | |
| 531 | ||
| 532 | ||
| 533 | /** | |
| 534 | * Close any open DatabaseMetaData objects | |
| 535 | * | |
| 536 | * @exception SQLException If an error occurs | |
| 537 | */ | |
| 538 | 43 | public void closeAnyOpenMetaDatas() |
| 539 | throws SQLException { | |
| 540 | 43 | final Iterator iterator = openDatabaseMetaData_.iterator(); |
| 541 | 43 | while( iterator.hasNext() ) { |
| 542 | 1 | ( ( DatabaseMetaDataWrapper )iterator.next() ).close(); |
| 543 | } | |
| 544 | 43 | openDatabaseMetaData_.clear(); |
| 545 | } | |
| 546 | ||
| 547 | ||
| 548 | /** | |
| 549 | * Clears all warnings reported for this <code>Connection</code> object. | |
| 550 | * After a call to this method, the method <code>getWarnings</code> returns | |
| 551 | * null until a new warning is reported for this Connection. | |
| 552 | * | |
| 553 | * @exception SQLException if a database access error occurs | |
| 554 | */ | |
| 555 | 2 | public void clearWarnings() |
| 556 | throws SQLException { | |
| 557 | 2 | checkConnection(); |
| 558 | 1 | delegate_.clearWarnings(); |
| 559 | } | |
| 560 | ||
| 561 | ||
| 562 | //--------------------------JDBC 2.0----------------------------- | |
| 563 | ||
| 564 | /** | |
| 565 | * Creates a <code>Statement</code> object that will generate <code>ResultSet</code> | |
| 566 | * objects with the given type and concurrency. This method is the same as | |
| 567 | * the <code>createStatement</code> method above, but it allows the default | |
| 568 | * result set type and result set concurrency type to be overridden. | |
| 569 | * | |
| 570 | * @param resultSetType a result set type; see ResultSet.TYPE_XXX | |
| 571 | * @param resultSetConcurrency a concurrency type; see ResultSet.CONCUR_XXX | |
| 572 | * @return a new Statement object | |
| 573 | * @exception SQLException if a database access error occurs | |
| 574 | * @since 1.2 | |
| 575 | */ | |
| 576 | 3 | public Statement createStatement( int resultSetType, int resultSetConcurrency ) |
| 577 | throws | |
| 578 | SQLException { | |
| 579 | ||
| 580 | 3 | checkConnection(); |
| 581 | 2 | final StatementWrapper wrapper |
| 582 | = new StatementWrapper( delegate_.createStatement( resultSetType, resultSetConcurrency ) ); | |
| 583 | 2 | openStatements_.add( wrapper ); |
| 584 | 2 | return wrapper; |
| 585 | } | |
| 586 | ||
| 587 | ||
| 588 | /** | |
| 589 | * Creates a <code>PreparedStatement</code> object that will generate | |
| 590 | * <code>ResultSet</code> objects with the given type and concurrency. This | |
| 591 | * method is the same as the <code>prepareStatement</code> method above, | |
| 592 | * but it allows the default result set type and result set concurrency | |
| 593 | * type to be overridden. | |
| 594 | * | |
| 595 | * @param sql a SQL statement that may contain one or more '?' parameter | |
| 596 | * placeholders. Typically this statement is a JDBC function call | |
| 597 | * escape string. | |
| 598 | * @param resultSetType a result set type; see ResultSet.TYPE_XXX | |
| 599 | * @param resultSetConcurrency a concurrency type; see ResultSet.CONCUR_XXX | |
| 600 | * @return a new PreparedStatement object containing the pre-compiled SQL | |
| 601 | * statement | |
| 602 | * @exception SQLException if a database access error occurs | |
| 603 | * @since 1.2 | |
| 604 | */ | |
| 605 | 3 | public PreparedStatement prepareStatement( |
| 606 | final String sql, | |
| 607 | final int resultSetType, | |
| 608 | final int resultSetConcurrency ) | |
| 609 | throws | |
| 610 | SQLException { | |
| 611 | ||
| 612 | 3 | checkConnection(); |
| 613 | 2 | final PreparedStatement statement |
| 614 | = new PreparedStatementWrapper( | |
| 615 | delegate_.prepareStatement( sql, resultSetType, resultSetConcurrency ) ); | |
| 616 | 2 | openStatements_.add( statement ); |
| 617 | 2 | return statement; |
| 618 | } | |
| 619 | ||
| 620 | ||
| 621 | /** | |
| 622 | * Creates a <code>CallableStatement</code> object that will generate | |
| 623 | * <code>ResultSet</code> objects with the given type and concurrency. This | |
| 624 | * method is the same as the <code>prepareCall</code> method above, but it | |
| 625 | * allows the default result set type and result set concurrency type to be | |
| 626 | * overridden. | |
| 627 | * | |
| 628 | * @param sql a SQL statement that may contain one or more '?' parameter | |
| 629 | * placeholders. Typically this statement is a JDBC function call | |
| 630 | * escape string. | |
| 631 | * @param resultSetType a result set type; see ResultSet.TYPE_XXX | |
| 632 | * @param resultSetConcurrency a concurrency type; see ResultSet.CONCUR_XXX | |
| 633 | * @return a new CallableStatement object containing the pre-compiled SQL | |
| 634 | * statement | |
| 635 | * @exception SQLException if a database access error occurs | |
| 636 | * @since 1.2 | |
| 637 | */ | |
| 638 | 3 | public CallableStatement prepareCall( String sql, int resultSetType, |
| 639 | int resultSetConcurrency ) | |
| 640 | throws SQLException { | |
| 641 | 3 | checkConnection(); |
| 642 | 2 | final CallableStatement statement |
| 643 | = new CallableStatementWrapper( delegate_.prepareCall( sql, resultSetType, resultSetConcurrency ) ); | |
| 644 | 2 | openStatements_.add( statement ); |
| 645 | 2 | return statement; |
| 646 | } | |
| 647 | ||
| 648 | ||
| 649 | /** | |
| 650 | * Check to see if the connection is still open. If not, throw an | |
| 651 | * exception. | |
| 652 | * | |
| 653 | * @exception SQLException | |
| 654 | */ | |
| 655 | 74 | private void checkConnection() |
| 656 | throws SQLException { | |
| 657 | 74 | if( isOpen_ == false ) { |
| 658 | 33 | throw new SQLException( "Methods cannot be invoked on a closed connection" ); |
| 659 | } | |
| 660 | } | |
| 661 | ||
| 662 | ||
| 663 | /** | |
| 664 | * Return the number of statements that are currently open. Useful for debugging purposes. | |
| 665 | * | |
| 666 | * @return The number of statements that are currently open. | |
| 667 | */ | |
| 668 | 0 | public int getOpenStatementCount() { |
| 669 | 0 | synchronized(openStatements_) { |
| 670 | 0 | int count = 0; |
| 671 | 0 | final Iterator iterator = openStatements_.iterator(); |
| 672 | 0 | while( iterator.hasNext() ) { |
| 673 | 0 | final StatementWrapper statement = (StatementWrapper)iterator.next(); |
| 674 | 0 | if( statement.isClosed() ) { |
| 675 | 0 | iterator.remove(); |
| 676 | } | |
| 677 | else { | |
| 678 | 0 | count++; |
| 679 | } | |
| 680 | } | |
| 681 | ||
| 682 | 0 | return count; |
| 683 | } | |
| 684 | } | |
| 685 | ||
| 686 | ||
| 687 | /** | |
| 688 | * Changes the holdability of <code>ResultSet</code> objects | |
| 689 | * created using this <code>Connection</code> object to the given | |
| 690 | * holdability. | |
| 691 | * | |
| 692 | * @param holdability a <code>ResultSet</code> holdability constant; one of | |
| 693 | * <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or | |
| 694 | * <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code> | |
| 695 | * @throws SQLException if a database access occurs, the given parameter | |
| 696 | * is not a <code>ResultSet</code> constant indicating holdability, | |
| 697 | * or the given holdability is not supported | |
| 698 | * @see #getHoldability | |
| 699 | * @see java.sql.ResultSet | |
| 700 | * @since 1.4 | |
| 701 | */ | |
| 702 | 2 | public void setHoldability(int holdability) throws SQLException { |
| 703 | 2 | checkConnection(); |
| 704 | 1 | delegate_.setHoldability(holdability); |
| 705 | } | |
| 706 | ||
| 707 | ||
| 708 | /** | |
| 709 | * Retrieves the current holdability of <code>ResultSet</code> objects | |
| 710 | * created using this <code>Connection</code> object. | |
| 711 | * | |
| 712 | * @return the holdability, one of | |
| 713 | * <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or | |
| 714 | * <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code> | |
| 715 | * @throws SQLException if a database access occurs | |
| 716 | * @see #setHoldability | |
| 717 | * @see java.sql.ResultSet | |
| 718 | * @since 1.4 | |
| 719 | */ | |
| 720 | 2 | public int getHoldability() throws SQLException { |
| 721 | 2 | checkConnection(); |
| 722 | 1 | return delegate_.getHoldability(); |
| 723 | } | |
| 724 | ||
| 725 | ||
| 726 | /** | |
| 727 | * Creates an unnamed savepoint in the current transaction and | |
| 728 | * returns the new <code>Savepoint</code> object that represents it. | |
| 729 | * | |
| 730 | * @return the new <code>Savepoint</code> object | |
| 731 | * @exception SQLException if a database access error occurs | |
| 732 | * or this <code>Connection</code> object is currently in | |
| 733 | * auto-commit mode | |
| 734 | * @see Savepoint | |
| 735 | * @since 1.4 | |
| 736 | */ | |
| 737 | 2 | public Savepoint setSavepoint() throws SQLException { |
| 738 | 2 | checkConnection(); |
| 739 | 1 | return delegate_.setSavepoint(); |
| 740 | } | |
| 741 | ||
| 742 | ||
| 743 | /** | |
| 744 | * Creates a savepoint with the given name in the current transaction | |
| 745 | * and returns the new <code>Savepoint</code> object that represents it. | |
| 746 | * | |
| 747 | * @param name a <code>String</code> containing the name of the savepoint | |
| 748 | * @return the new <code>Savepoint</code> object | |
| 749 | * @exception SQLException if a database access error occurs | |
| 750 | * or this <code>Connection</code> object is currently in | |
| 751 | * auto-commit mode | |
| 752 | * @see Savepoint | |
| 753 | * @since 1.4 | |
| 754 | */ | |
| 755 | 2 | public Savepoint setSavepoint(String name) throws SQLException { |
| 756 | 2 | checkConnection(); |
| 757 | 1 | return delegate_.setSavepoint(name); |
| 758 | } | |
| 759 | ||
| 760 | ||
| 761 | /** | |
| 762 | * Undoes all changes made after the given <code>Savepoint</code> object | |
| 763 | * was set. | |
| 764 | * <P> | |
| 765 | * This method should be used only when auto-commit has been disabled. | |
| 766 | * | |
| 767 | * @param savepoint the <code>Savepoint</code> object to roll back to | |
| 768 | * @exception SQLException if a database access error occurs, | |
| 769 | * the <code>Savepoint</code> object is no longer valid, | |
| 770 | * or this <code>Connection</code> object is currently in | |
| 771 | * auto-commit mode | |
| 772 | * @see Savepoint | |
| 773 | * @since 1.4 | |
| 774 | */ | |
| 775 | 2 | public void rollback(Savepoint savepoint) throws SQLException { |
| 776 | 2 | checkConnection(); |
| 777 | 1 | delegate_.rollback(savepoint); |
| 778 | } | |
| 779 | ||
| 780 | ||
| 781 | /** | |
| 782 | * Removes the given <code>Savepoint</code> object from the current | |
| 783 | * transaction. Any reference to the savepoint after it have been removed | |
| 784 | * will cause an <code>SQLException</code> to be thrown. | |
| 785 | * | |
| 786 | * @param savepoint the <code>Savepoint</code> object to be removed | |
| 787 | * @exception SQLException if a database access error occurs or | |
| 788 | * the given <code>Savepoint</code> object is not a valid | |
| 789 | * savepoint in the current transaction | |
| 790 | * @since 1.4 | |
| 791 | */ | |
| 792 | 2 | public void releaseSavepoint(Savepoint savepoint) throws SQLException { |
| 793 | 2 | checkConnection(); |
| 794 | 1 | delegate_.releaseSavepoint(savepoint); |
| 795 | } | |
| 796 | ||
| 797 | ||
| 798 | /** | |
| 799 | * Creates a <code>Statement</code> object that will generate | |
| 800 | * <code>ResultSet</code> objects with the given type, concurrency, | |
| 801 | * and holdability. | |
| 802 | * This method is the same as the <code>createStatement</code> method | |
| 803 | * above, but it allows the default result set | |
| 804 | * type, concurrency, and holdability to be overridden. | |
| 805 | * | |
| 806 | * @param resultSetType one of the following <code>ResultSet</code> | |
| 807 | * constants: | |
| 808 | * <code>ResultSet.TYPE_FORWARD_ONLY</code>, | |
| 809 | * <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or | |
| 810 | * <code>ResultSet.TYPE_SCROLL_SENSITIVE</code> | |
| 811 | * @param resultSetConcurrency one of the following <code>ResultSet</code> | |
| 812 | * constants: | |
| 813 | * <code>ResultSet.CONCUR_READ_ONLY</code> or | |
| 814 | * <code>ResultSet.CONCUR_UPDATABLE</code> | |
| 815 | * @param resultSetHoldability one of the following <code>ResultSet</code> | |
| 816 | * constants: | |
| 817 | * <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or | |
| 818 | * <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code> | |
| 819 | * @return a new <code>Statement</code> object that will generate | |
| 820 | * <code>ResultSet</code> objects with the given type, | |
| 821 | * concurrency, and holdability | |
| 822 | * @exception SQLException if a database access error occurs | |
| 823 | * or the given parameters are not <code>ResultSet</code> | |
| 824 | * constants indicating type, concurrency, and holdability | |
| 825 | * @see java.sql.ResultSet | |
| 826 | * @since 1.4 | |
| 827 | */ | |
| 828 | 2 | public Statement createStatement(int resultSetType, int resultSetConcurrency, |
| 829 | int resultSetHoldability) throws SQLException { | |
| 830 | 2 | checkConnection(); |
| 831 | ||
| 832 | 1 | final Statement statement = new StatementWrapper( |
| 833 | delegate_.createStatement( resultSetType, resultSetConcurrency, resultSetHoldability ) ); | |
| 834 | 1 | openStatements_.add( statement ); |
| 835 | 1 | return statement; |
| 836 | } | |
| 837 | ||
| 838 | ||
| 839 | /** | |
| 840 | * Creates a <code>PreparedStatement</code> object that will generate | |
| 841 | * <code>ResultSet</code> objects with the given type, concurrency, | |
| 842 | * and holdability. | |
| 843 | * <P> | |
| 844 | * This method is the same as the <code>prepareStatement</code> method | |
| 845 | * above, but it allows the default result set | |
| 846 | * type, concurrency, and holdability to be overridden. | |
| 847 | * | |
| 848 | * @param sql a <code>String</code> object that is the SQL statement to | |
| 849 | * be sent to the database; may contain one or more ? IN | |
| 850 | * parameters | |
| 851 | * @param resultSetType one of the following <code>ResultSet</code> | |
| 852 | * constants: | |
| 853 | * <code>ResultSet.TYPE_FORWARD_ONLY</code>, | |
| 854 | * <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or | |
| 855 | * <code>ResultSet.TYPE_SCROLL_SENSITIVE</code> | |
| 856 | * @param resultSetConcurrency one of the following <code>ResultSet</code> | |
| 857 | * constants: | |
| 858 | * <code>ResultSet.CONCUR_READ_ONLY</code> or | |
| 859 | * <code>ResultSet.CONCUR_UPDATABLE</code> | |
| 860 | * @param resultSetHoldability one of the following <code>ResultSet</code> | |
| 861 | * constants: | |
| 862 | * <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or | |
| 863 | * <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code> | |
| 864 | * @return a new <code>PreparedStatement</code> object, containing the | |
| 865 | * pre-compiled SQL statement, that will generate | |
| 866 | * <code>ResultSet</code> objects with the given type, | |
| 867 | * concurrency, and holdability | |
| 868 | * @exception SQLException if a database access error occurs | |
| 869 | * or the given parameters are not <code>ResultSet</code> | |
| 870 | * constants indicating type, concurrency, and holdability | |
| 871 | * @see java.sql.ResultSet | |
| 872 | * @since 1.4 | |
| 873 | */ | |
| 874 | 2 | public PreparedStatement prepareStatement(String sql, int resultSetType, |
| 875 | int resultSetConcurrency, int resultSetHoldability) throws SQLException { | |
| 876 | 2 | checkConnection(); |
| 877 | ||
| 878 | 1 | final PreparedStatement statement = new PreparedStatementWrapper( |
| 879 | delegate_.prepareStatement( sql, resultSetType, resultSetConcurrency, resultSetHoldability ) ); | |
| 880 | 1 | openStatements_.add( statement ); |
| 881 | 1 | return statement; |
| 882 | } | |
| 883 | ||
| 884 | ||
| 885 | /** | |
| 886 | * Creates a <code>CallableStatement</code> object that will generate | |
| 887 | * <code>ResultSet</code> objects with the given type and concurrency. | |
| 888 | * This method is the same as the <code>prepareCall</code> method | |
| 889 | * above, but it allows the default result set | |
| 890 | * type, result set concurrency type and holdability to be overridden. | |
| 891 | * | |
| 892 | * @param sql a <code>String</code> object that is the SQL statement to | |
| 893 | * be sent to the database; may contain on or more ? parameters | |
| 894 | * @param resultSetType one of the following <code>ResultSet</code> | |
| 895 | * constants: | |
| 896 | * <code>ResultSet.TYPE_FORWARD_ONLY</code>, | |
| 897 | * <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or | |
| 898 | * <code>ResultSet.TYPE_SCROLL_SENSITIVE</code> | |
| 899 | * @param resultSetConcurrency one of the following <code>ResultSet</code> | |
| 900 | * constants: | |
| 901 | * <code>ResultSet.CONCUR_READ_ONLY</code> or | |
| 902 | * <code>ResultSet.CONCUR_UPDATABLE</code> | |
| 903 | * @param resultSetHoldability one of the following <code>ResultSet</code> | |
| 904 | * constants: | |
| 905 | * <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or | |
| 906 | * <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code> | |
| 907 | * @return a new <code>CallableStatement</code> object, containing the | |
| 908 | * pre-compiled SQL statement, that will generate | |
| 909 | * <code>ResultSet</code> objects with the given type, | |
| 910 | * concurrency, and holdability | |
| 911 | * @exception SQLException if a database access error occurs | |
| 912 | * or the given parameters are not <code>ResultSet</code> | |
| 913 | * constants indicating type, concurrency, and holdability | |
| 914 | * @see java.sql.ResultSet | |
| 915 | * @since 1.4 | |
| 916 | */ | |
| 917 | 2 | public CallableStatement prepareCall(String sql, int resultSetType, |
| 918 | int resultSetConcurrency, int resultSetHoldability) throws SQLException { | |
| 919 | 2 | checkConnection(); |
| 920 | ||
| 921 | 1 | final CallableStatement statement = new CallableStatementWrapper( |
| 922 | delegate_.prepareCall( sql, resultSetType, resultSetConcurrency, resultSetHoldability) ); | |
| 923 | 1 | openStatements_.add( statement ); |
| 924 | 1 | return statement; |
| 925 | } | |
| 926 | ||
| 927 | ||
| 928 | /** | |
| 929 | * Creates a default <code>PreparedStatement</code> object that has | |
| 930 | * the capability to retrieve auto-generated keys. The given constant | |
| 931 | * tells the driver whether it should make auto-generated keys | |
| 932 | * available for retrieval. This parameter is ignored if the SQL | |
| 933 | * statement is not an <code>INSERT</code> statement. | |
| 934 | * <P> | |
| 935 | * <B>Note:</B> This method is optimized for handling | |
| 936 | * parametric SQL statements that benefit from precompilation. If | |
| 937 | * the driver supports precompilation, | |
| 938 | * the method <code>prepareStatement</code> will send | |
| 939 | * the statement to the database for precompilation. Some drivers | |
| 940 | * may not support precompilation. In this case, the statement may | |
| 941 | * not be sent to the database until the <code>PreparedStatement</code> | |
| 942 | * object is executed. This has no direct effect on users; however, it does | |
| 943 | * affect which methods throw certain SQLExceptions. | |
| 944 | * <P> | |
| 945 | * Result sets created using the returned <code>PreparedStatement</code> | |
| 946 | * object will by default be type <code>TYPE_FORWARD_ONLY</code> | |
| 947 | * and have a concurrency level of <code>CONCUR_READ_ONLY</code>. | |
| 948 | * | |
| 949 | * @param sql an SQL statement that may contain one or more '?' IN | |
| 950 | * parameter placeholders | |
| 951 | * @param autoGeneratedKeys a flag indicating whether auto-generated keys | |
| 952 | * should be returned; one of | |
| 953 | * <code>Statement.RETURN_GENERATED_KEYS</code> or | |
| 954 | * <code>Statement.NO_GENERATED_KEYS</code> | |
| 955 | * @return a new <code>PreparedStatement</code> object, containing the | |
| 956 | * pre-compiled SQL statement, that will have the capability of | |
| 957 | * returning auto-generated keys | |
| 958 | * @exception SQLException if a database access error occurs | |
| 959 | * or the given parameter is not a <code>Statement</code> | |
| 960 | * constant indicating whether auto-generated keys should be | |
| 961 | * returned | |
| 962 | * @since 1.4 | |
| 963 | */ | |
| 964 | 2 | public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException { |
| 965 | 2 | checkConnection(); |
| 966 | ||
| 967 | 1 | final PreparedStatement statement |
| 968 | = new PreparedStatementWrapper( delegate_.prepareStatement( sql, autoGeneratedKeys ) ); | |
| 969 | 1 | openStatements_.add( statement ); |
| 970 | 1 | return statement; |
| 971 | } | |
| 972 | ||
| 973 | ||
| 974 | /** | |
| 975 | * Creates a default <code>PreparedStatement</code> object capable | |
| 976 | * of returning the auto-generated keys designated by the given array. | |
| 977 | * This array contains the indexes of the columns in the target | |
| 978 | * table that contain the auto-generated keys that should be made | |
| 979 | * available. This array is ignored if the SQL | |
| 980 | * statement is not an <code>INSERT</code> statement. | |
| 981 | * <P> | |
| 982 | * An SQL statement with or without IN parameters can be | |
| 983 | * pre-compiled and stored in a <code>PreparedStatement</code> object. This | |
| 984 | * object can then be used to efficiently execute this statement | |
| 985 | * multiple times. | |
| 986 | * <P> | |
| 987 | * <B>Note:</B> This method is optimized for handling | |
| 988 | * parametric SQL statements that benefit from precompilation. If | |
| 989 | * the driver supports precompilation, | |
| 990 | * the method <code>prepareStatement</code> will send | |
| 991 | * the statement to the database for precompilation. Some drivers | |
| 992 | * may not support precompilation. In this case, the statement may | |
| 993 | * not be sent to the database until the <code>PreparedStatement</code> | |
| 994 | * object is executed. This has no direct effect on users; however, it does | |
| 995 | * affect which methods throw certain SQLExceptions. | |
| 996 | * <P> | |
| 997 | * Result sets created using the returned <code>PreparedStatement</code> | |
| 998 | * object will by default be type <code>TYPE_FORWARD_ONLY</code> | |
| 999 | * and have a concurrency level of <code>CONCUR_READ_ONLY</code>. | |
| 1000 | * | |
| 1001 | * @param sql an SQL statement that may contain one or more '?' IN | |
| 1002 | * parameter placeholders | |
| 1003 | * @param columnIndexes an array of column indexes indicating the columns | |
| 1004 | * that should be returned from the inserted row or rows | |
| 1005 | * @return a new <code>PreparedStatement</code> object, containing the | |
| 1006 | * pre-compiled statement, that is capable of returning the | |
| 1007 | * auto-generated keys designated by the given array of column | |
| 1008 | * indexes | |
| 1009 | * @exception SQLException if a database access error occurs | |
| 1010 | * | |
| 1011 | * @since 1.4 | |
| 1012 | */ | |
| 1013 | 2 | public PreparedStatement prepareStatement(String sql, int columnIndexes[]) throws SQLException { |
| 1014 | 2 | checkConnection(); |
| 1015 | ||
| 1016 | 1 | final PreparedStatement statement |
| 1017 | = new PreparedStatementWrapper( delegate_.prepareStatement( sql, columnIndexes ) ); | |
| 1018 | 1 | openStatements_.add( statement ); |
| 1019 | 1 | return statement; |
| 1020 | } | |
| 1021 | ||
| 1022 | ||
| 1023 | /** | |
| 1024 | * Creates a default <code>PreparedStatement</code> object capable | |
| 1025 | * of returning the auto-generated keys designated by the given array. | |
| 1026 | * This array contains the names of the columns in the target | |
| 1027 | * table that contain the auto-generated keys that should be returned. | |
| 1028 | * This array is ignored if the SQL | |
| 1029 | * statement is not an <code>INSERT</code> statement. | |
| 1030 | * <P> | |
| 1031 | * An SQL statement with or without IN parameters can be | |
| 1032 | * pre-compiled and stored in a <code>PreparedStatement</code> object. This | |
| 1033 | * object can then be used to efficiently execute this statement | |
| 1034 | * multiple times. | |
| 1035 | * <P> | |
| 1036 | * <B>Note:</B> This method is optimized for handling | |
| 1037 | * parametric SQL statements that benefit from precompilation. If | |
| 1038 | * the driver supports precompilation, | |
| 1039 | * the method <code>prepareStatement</code> will send | |
| 1040 | * the statement to the database for precompilation. Some drivers | |
| 1041 | * may not support precompilation. In this case, the statement may | |
| 1042 | * not be sent to the database until the <code>PreparedStatement</code> | |
| 1043 | * object is executed. This has no direct effect on users; however, it does | |
| 1044 | * affect which methods throw certain SQLExceptions. | |
| 1045 | * <P> | |
| 1046 | * Result sets created using the returned <code>PreparedStatement</code> | |
| 1047 | * object will by default be type <code>TYPE_FORWARD_ONLY</code> | |
| 1048 | * and have a concurrency level of <code>CONCUR_READ_ONLY</code>. | |
| 1049 | * | |
| 1050 | * @param sql an SQL statement that may contain one or more '?' IN | |
| 1051 | * parameter placeholders | |
| 1052 | * @param columnNames an array of column names indicating the columns | |
| 1053 | * that should be returned from the inserted row or rows | |
| 1054 | * @return a new <code>PreparedStatement</code> object, containing the | |
| 1055 | * pre-compiled statement, that is capable of returning the | |
| 1056 | * auto-generated keys designated by the given array of column | |
| 1057 | * names | |
| 1058 | * @exception SQLException if a database access error occurs | |
| 1059 | * | |
| 1060 | * @since 1.4 | |
| 1061 | */ | |
| 1062 | 2 | public PreparedStatement prepareStatement(String sql, String columnNames[]) throws SQLException { |
| 1063 | 2 | checkConnection(); |
| 1064 | ||
| 1065 | 1 | final PreparedStatement statement |
| 1066 | = new PreparedStatementWrapper( delegate_.prepareStatement( sql, columnNames ) ); | |
| 1067 | 1 | openStatements_.add( statement ); |
| 1068 | 1 | return statement; |
| 1069 | } | |
| 1070 | } | |
| 1071 |
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