1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<!--NewPage--> 3<HTML> 4<HEAD> 5<!-- Generated by javadoc (build 1.5.0) on Thu May 15 17:17:32 EDT 2008 --> 6<TITLE> 7TransactionConfig (Oracle - Berkeley DB Java API) 8</TITLE> 9 10<META NAME="keywords" CONTENT="com.sleepycat.db.TransactionConfig class"> 11 12<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../style.css" TITLE="Style"> 13 14<SCRIPT type="text/javascript"> 15function windowTitle() 16{ 17 parent.document.title="TransactionConfig (Oracle - Berkeley DB Java API)"; 18} 19</SCRIPT> 20<NOSCRIPT> 21</NOSCRIPT> 22 23</HEAD> 24 25<BODY BGCOLOR="white" onload="windowTitle();"> 26 27 28<!-- ========= START OF TOP NAVBAR ======= --> 29<A NAME="navbar_top"><!-- --></A> 30<A HREF="#skip-navbar_top" title="Skip navigation links"></A> 31<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> 32<TR> 33<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> 34<A NAME="navbar_top_firstrow"><!-- --></A> 35<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> 36 <TR ALIGN="center" VALIGN="top"> 37 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> 38 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> 39 <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> 40 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/TransactionConfig.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> 41 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> 42 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> 43 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> 44 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> 45 </TR> 46</TABLE> 47</TD> 48<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> 49<b>Berkeley DB</b><br><font size="-1"> version 4.7.25</font></EM> 50</TD> 51</TR> 52 53<TR> 54<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> 55 <A HREF="../../../com/sleepycat/db/Transaction.html" title="class in com.sleepycat.db"><B>PREV CLASS</B></A> 56 <A HREF="../../../com/sleepycat/db/TransactionStats.html" title="class in com.sleepycat.db"><B>NEXT CLASS</B></A></FONT></TD> 57<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> 58 <A HREF="../../../index.html?com/sleepycat/db/TransactionConfig.html" target="_top"><B>FRAMES</B></A> 59 <A HREF="TransactionConfig.html" target="_top"><B>NO FRAMES</B></A> 60 <SCRIPT type="text/javascript"> 61 <!-- 62 if(window==top) { 63 document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); 64 } 65 //--> 66</SCRIPT> 67<NOSCRIPT> 68 <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A> 69</NOSCRIPT> 70 71 72</FONT></TD> 73</TR> 74<TR> 75<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 76 SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> 77<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 78DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> 79</TR> 80</TABLE> 81<A NAME="skip-navbar_top"></A> 82<!-- ========= END OF TOP NAVBAR ========= --> 83 84<HR> 85<!-- ======== START OF CLASS DATA ======== --> 86<H2> 87<FONT SIZE="-1"> 88com.sleepycat.db</FONT> 89<BR> 90Class TransactionConfig</H2> 91<PRE> 92<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A> 93 <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.sleepycat.db.TransactionConfig</B> 94</PRE> 95<DL> 96<DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Cloneable.html" title="class or interface in java.lang">Cloneable</A></DD> 97</DL> 98<HR> 99<DL> 100<DT><PRE>public class <B>TransactionConfig</B><DT>extends <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A><DT>implements <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Cloneable.html" title="class or interface in java.lang">Cloneable</A></DL> 101</PRE> 102 103<P> 104Specifies the attributes of a database environment transaction. 105<P> 106 107<P> 108<HR> 109 110<P> 111<!-- =========== FIELD SUMMARY =========== --> 112 113<A NAME="field_summary"><!-- --></A> 114<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 115<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 116<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 117<B>Field Summary</B></FONT></TH> 118</TR> 119<TR BGCOLOR="white" CLASS="TableRowColor"> 120<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 121<CODE>static <A HREF="../../../com/sleepycat/db/TransactionConfig.html" title="class in com.sleepycat.db">TransactionConfig</A></CODE></FONT></TD> 122<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#DEFAULT">DEFAULT</A></B></CODE> 123 124<BR> 125 Default configuration used if null is passed to methods that create a 126 transaction.</TD> 127</TR> 128</TABLE> 129 130<!-- ======== CONSTRUCTOR SUMMARY ======== --> 131 132<A NAME="constructor_summary"><!-- --></A> 133<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 134<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 135<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 136<B>Constructor Summary</B></FONT></TH> 137</TR> 138<TR BGCOLOR="white" CLASS="TableRowColor"> 139<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#TransactionConfig()">TransactionConfig</A></B>()</CODE> 140 141<BR> 142 An instance created using the default constructor is initialized 143 with the system's default settings.</TD> 144</TR> 145</TABLE> 146 147<!-- ========== METHOD SUMMARY =========== --> 148 149<A NAME="method_summary"><!-- --></A> 150<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 151<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 152<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 153<B>Method Summary</B></FONT></TH> 154</TR> 155<TR BGCOLOR="white" CLASS="TableRowColor"> 156<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 157<CODE> boolean</CODE></FONT></TD> 158<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getDegree2()">getDegree2</A></B>()</CODE> 159 160<BR> 161 <B>Deprecated.</B> <I>This has been replaced by <A HREF="../../../com/sleepycat/db/TransactionConfig.html#getReadCommitted()"><CODE>getReadCommitted()</CODE></A> to conform to ANSI 162 database isolation terminology.</I></TD> 163</TR> 164<TR BGCOLOR="white" CLASS="TableRowColor"> 165<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 166<CODE> boolean</CODE></FONT></TD> 167<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getDirtyRead()">getDirtyRead</A></B>()</CODE> 168 169<BR> 170 <B>Deprecated.</B> <I>This has been replaced by <A HREF="../../../com/sleepycat/db/TransactionConfig.html#getReadUncommitted()"><CODE>getReadUncommitted()</CODE></A> to conform to ANSI 171 database isolation terminology.</I></TD> 172</TR> 173<TR BGCOLOR="white" CLASS="TableRowColor"> 174<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 175<CODE> boolean</CODE></FONT></TD> 176<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getNoSync()">getNoSync</A></B>()</CODE> 177 178<BR> 179 Return if the transaction is configured to not write or synchronously 180 flush the log it when commits.</TD> 181</TR> 182<TR BGCOLOR="white" CLASS="TableRowColor"> 183<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 184<CODE> boolean</CODE></FONT></TD> 185<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getNoWait()">getNoWait</A></B>()</CODE> 186 187<BR> 188 Return if the transaction is configured to not wait if a lock 189 request cannot be immediately granted.</TD> 190</TR> 191<TR BGCOLOR="white" CLASS="TableRowColor"> 192<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 193<CODE> boolean</CODE></FONT></TD> 194<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getReadCommitted()">getReadCommitted</A></B>()</CODE> 195 196<BR> 197 Return if the transaction is configured for read committed isolation.</TD> 198</TR> 199<TR BGCOLOR="white" CLASS="TableRowColor"> 200<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 201<CODE> boolean</CODE></FONT></TD> 202<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getReadUncommitted()">getReadUncommitted</A></B>()</CODE> 203 204<BR> 205 Return if read operations performed by the transaction are configured to 206 return modified but not yet committed data.</TD> 207</TR> 208<TR BGCOLOR="white" CLASS="TableRowColor"> 209<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 210<CODE> boolean</CODE></FONT></TD> 211<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getSnapshot()">getSnapshot</A></B>()</CODE> 212 213<BR> 214 Return true if the transaction is configured for Snapshot Isolation.</TD> 215</TR> 216<TR BGCOLOR="white" CLASS="TableRowColor"> 217<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 218<CODE> boolean</CODE></FONT></TD> 219<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getSync()">getSync</A></B>()</CODE> 220 221<BR> 222 Return if the transaction is configured to write and synchronously 223 flush the log it when commits.</TD> 224</TR> 225<TR BGCOLOR="white" CLASS="TableRowColor"> 226<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 227<CODE> boolean</CODE></FONT></TD> 228<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getWait()">getWait</A></B>()</CODE> 229 230<BR> 231 Return if the transaction is configured to wait if a lock 232 request cannot be immediately granted.</TD> 233</TR> 234<TR BGCOLOR="white" CLASS="TableRowColor"> 235<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 236<CODE> boolean</CODE></FONT></TD> 237<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getWriteNoSync()">getWriteNoSync</A></B>()</CODE> 238 239<BR> 240 Return if the transaction is configured to write but not synchronously 241 flush the log it when commits.</TD> 242</TR> 243<TR BGCOLOR="white" CLASS="TableRowColor"> 244<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 245<CODE> void</CODE></FONT></TD> 246<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setDegree2(boolean)">setDegree2</A></B>(boolean degree2)</CODE> 247 248<BR> 249 <B>Deprecated.</B> <I>This has been replaced by <A HREF="../../../com/sleepycat/db/TransactionConfig.html#setReadCommitted(boolean)"><CODE>setReadCommitted(boolean)</CODE></A> to conform to ANSI 250 database isolation terminology.</I></TD> 251</TR> 252<TR BGCOLOR="white" CLASS="TableRowColor"> 253<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 254<CODE> void</CODE></FONT></TD> 255<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setDirtyRead(boolean)">setDirtyRead</A></B>(boolean dirtyRead)</CODE> 256 257<BR> 258 <B>Deprecated.</B> <I>This has been replaced by <A HREF="../../../com/sleepycat/db/TransactionConfig.html#setReadUncommitted(boolean)"><CODE>setReadUncommitted(boolean)</CODE></A> to conform to ANSI 259 database isolation terminology.</I></TD> 260</TR> 261<TR BGCOLOR="white" CLASS="TableRowColor"> 262<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 263<CODE> void</CODE></FONT></TD> 264<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setNoSync(boolean)">setNoSync</A></B>(boolean noSync)</CODE> 265 266<BR> 267 Configure the transaction to not write or synchronously flush the log 268 it when commits.</TD> 269</TR> 270<TR BGCOLOR="white" CLASS="TableRowColor"> 271<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 272<CODE> void</CODE></FONT></TD> 273<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setNoWait(boolean)">setNoWait</A></B>(boolean noWait)</CODE> 274 275<BR> 276 Configure the transaction to not wait if a lock request cannot be 277 immediately granted.</TD> 278</TR> 279<TR BGCOLOR="white" CLASS="TableRowColor"> 280<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 281<CODE> void</CODE></FONT></TD> 282<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setReadCommitted(boolean)">setReadCommitted</A></B>(boolean readCommitted)</CODE> 283 284<BR> 285 Configure the transaction for read committed isolation.</TD> 286</TR> 287<TR BGCOLOR="white" CLASS="TableRowColor"> 288<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 289<CODE> void</CODE></FONT></TD> 290<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setReadUncommitted(boolean)">setReadUncommitted</A></B>(boolean readUncommitted)</CODE> 291 292<BR> 293 Configure read operations performed by the transaction to return modified 294 but not yet committed data.</TD> 295</TR> 296<TR BGCOLOR="white" CLASS="TableRowColor"> 297<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 298<CODE> void</CODE></FONT></TD> 299<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setSnapshot(boolean)">setSnapshot</A></B>(boolean snapshot)</CODE> 300 301<BR> 302 This transaction will execute with snapshot isolation.</TD> 303</TR> 304<TR BGCOLOR="white" CLASS="TableRowColor"> 305<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 306<CODE> void</CODE></FONT></TD> 307<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setSync(boolean)">setSync</A></B>(boolean sync)</CODE> 308 309<BR> 310 Configure the transaction to write and synchronously flush the log 311 it when commits.</TD> 312</TR> 313<TR BGCOLOR="white" CLASS="TableRowColor"> 314<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 315<CODE> void</CODE></FONT></TD> 316<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setWait(boolean)">setWait</A></B>(boolean wait)</CODE> 317 318<BR> 319 Configure the transaction to wait if a lock request cannot be 320 immediately granted.</TD> 321</TR> 322<TR BGCOLOR="white" CLASS="TableRowColor"> 323<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 324<CODE> void</CODE></FONT></TD> 325<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setWriteNoSync(boolean)">setWriteNoSync</A></B>(boolean writeNoSync)</CODE> 326 327<BR> 328 Configure the transaction to write but not synchronously flush the log 329 it when commits.</TD> 330</TR> 331</TABLE> 332 <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> 333<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 334<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> 335<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TH> 336</TR> 337<TR BGCOLOR="white" CLASS="TableRowColor"> 338<TD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> 339</TR> 340</TABLE> 341 342<P> 343 344<!-- ============ FIELD DETAIL =========== --> 345 346<A NAME="field_detail"><!-- --></A> 347<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 348<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 349<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 350<B>Field Detail</B></FONT></TH> 351</TR> 352</TABLE> 353 354<A NAME="DEFAULT"><!-- --></A><H3> 355DEFAULT</H3> 356<PRE> 357public static final <A HREF="../../../com/sleepycat/db/TransactionConfig.html" title="class in com.sleepycat.db">TransactionConfig</A> <B>DEFAULT</B></PRE> 358<DL> 359<DD>Default configuration used if null is passed to methods that create a 360 transaction. 361<P> 362<DL> 363</DL> 364</DL> 365 366<!-- ========= CONSTRUCTOR DETAIL ======== --> 367 368<A NAME="constructor_detail"><!-- --></A> 369<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 370<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 371<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 372<B>Constructor Detail</B></FONT></TH> 373</TR> 374</TABLE> 375 376<A NAME="TransactionConfig()"><!-- --></A><H3> 377TransactionConfig</H3> 378<PRE> 379public <B>TransactionConfig</B>()</PRE> 380<DL> 381<DD>An instance created using the default constructor is initialized 382 with the system's default settings. 383<P> 384</DL> 385 386<!-- ============ METHOD DETAIL ========== --> 387 388<A NAME="method_detail"><!-- --></A> 389<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 390<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 391<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 392<B>Method Detail</B></FONT></TH> 393</TR> 394</TABLE> 395 396<A NAME="setReadCommitted(boolean)"><!-- --></A><H3> 397setReadCommitted</H3> 398<PRE> 399public void <B>setReadCommitted</B>(boolean readCommitted)</PRE> 400<DL> 401<DD>Configure the transaction for read committed isolation. 402 <p> 403 This ensures the stability of the current data item read by the 404 cursor but permits data read by this transaction to be modified or 405 deleted prior to the commit of the transaction. 406 <p> 407<P> 408<DD><DL> 409</DL> 410</DD> 411<DD><DL> 412<DT><B>Parameters:</B><DD><CODE>readCommitted</CODE> - If true, configure the transaction for read committed isolation.</DL> 413</DD> 414</DL> 415<HR> 416 417<A NAME="getReadCommitted()"><!-- --></A><H3> 418getReadCommitted</H3> 419<PRE> 420public boolean <B>getReadCommitted</B>()</PRE> 421<DL> 422<DD>Return if the transaction is configured for read committed isolation. 423 <p> 424<P> 425<DD><DL> 426</DL> 427</DD> 428<DD><DL> 429 430<DT><B>Returns:</B><DD>If the transaction is configured for read committed isolation.</DL> 431</DD> 432</DL> 433<HR> 434 435<A NAME="setDegree2(boolean)"><!-- --></A><H3> 436setDegree2</H3> 437<PRE> 438public void <B>setDegree2</B>(boolean degree2)</PRE> 439<DL> 440<DD><B>Deprecated.</B> <I>This has been replaced by <A HREF="../../../com/sleepycat/db/TransactionConfig.html#setReadCommitted(boolean)"><CODE>setReadCommitted(boolean)</CODE></A> to conform to ANSI 441 database isolation terminology.</I> 442<P> 443<DD>Configure the transaction for read committed isolation. 444 <p> 445 This ensures the stability of the current data item read by the 446 cursor but permits data read by this transaction to be modified or 447 deleted prior to the commit of the transaction. 448 <p> 449<P> 450<DD><DL> 451</DL> 452</DD> 453<DD><DL> 454<DT><B>Parameters:</B><DD><CODE>degree2</CODE> - If true, configure the transaction for read committed isolation. 455 <p></DL> 456</DD> 457</DL> 458<HR> 459 460<A NAME="getDegree2()"><!-- --></A><H3> 461getDegree2</H3> 462<PRE> 463public boolean <B>getDegree2</B>()</PRE> 464<DL> 465<DD><B>Deprecated.</B> <I>This has been replaced by <A HREF="../../../com/sleepycat/db/TransactionConfig.html#getReadCommitted()"><CODE>getReadCommitted()</CODE></A> to conform to ANSI 466 database isolation terminology.</I> 467<P> 468<DD>Return if the transaction is configured for read committed isolation. 469 <p> 470<P> 471<DD><DL> 472</DL> 473</DD> 474<DD><DL> 475 476<DT><B>Returns:</B><DD>If the transaction is configured for read committed isolation. 477 <p></DL> 478</DD> 479</DL> 480<HR> 481 482<A NAME="setReadUncommitted(boolean)"><!-- --></A><H3> 483setReadUncommitted</H3> 484<PRE> 485public void <B>setReadUncommitted</B>(boolean readUncommitted)</PRE> 486<DL> 487<DD>Configure read operations performed by the transaction to return modified 488 but not yet committed data. 489 <p> 490<P> 491<DD><DL> 492</DL> 493</DD> 494<DD><DL> 495<DT><B>Parameters:</B><DD><CODE>readUncommitted</CODE> - If true, configure read operations performed by the transaction to return 496 modified but not yet committed data.</DL> 497</DD> 498</DL> 499<HR> 500 501<A NAME="getReadUncommitted()"><!-- --></A><H3> 502getReadUncommitted</H3> 503<PRE> 504public boolean <B>getReadUncommitted</B>()</PRE> 505<DL> 506<DD>Return if read operations performed by the transaction are configured to 507 return modified but not yet committed data. 508 <p> 509<P> 510<DD><DL> 511</DL> 512</DD> 513<DD><DL> 514 515<DT><B>Returns:</B><DD>If read operations performed by the transaction are configured to return 516 modified but not yet committed data.</DL> 517</DD> 518</DL> 519<HR> 520 521<A NAME="setDirtyRead(boolean)"><!-- --></A><H3> 522setDirtyRead</H3> 523<PRE> 524public void <B>setDirtyRead</B>(boolean dirtyRead)</PRE> 525<DL> 526<DD><B>Deprecated.</B> <I>This has been replaced by <A HREF="../../../com/sleepycat/db/TransactionConfig.html#setReadUncommitted(boolean)"><CODE>setReadUncommitted(boolean)</CODE></A> to conform to ANSI 527 database isolation terminology.</I> 528<P> 529<DD>Configure read operations performed by the transaction to return modified 530 but not yet committed data. 531 <p> 532<P> 533<DD><DL> 534</DL> 535</DD> 536<DD><DL> 537<DT><B>Parameters:</B><DD><CODE>dirtyRead</CODE> - If true, configure read operations performed by the transaction to return 538 modified but not yet committed data. 539 <p></DL> 540</DD> 541</DL> 542<HR> 543 544<A NAME="getDirtyRead()"><!-- --></A><H3> 545getDirtyRead</H3> 546<PRE> 547public boolean <B>getDirtyRead</B>()</PRE> 548<DL> 549<DD><B>Deprecated.</B> <I>This has been replaced by <A HREF="../../../com/sleepycat/db/TransactionConfig.html#getReadUncommitted()"><CODE>getReadUncommitted()</CODE></A> to conform to ANSI 550 database isolation terminology.</I> 551<P> 552<DD>Return if read operations performed by the transaction are configured to 553 return modified but not yet committed data. 554 <p> 555<P> 556<DD><DL> 557</DL> 558</DD> 559<DD><DL> 560 561<DT><B>Returns:</B><DD>If read operations performed by the transaction are configured to return 562 modified but not yet committed data. 563 <p></DL> 564</DD> 565</DL> 566<HR> 567 568<A NAME="setNoSync(boolean)"><!-- --></A><H3> 569setNoSync</H3> 570<PRE> 571public void <B>setNoSync</B>(boolean noSync)</PRE> 572<DL> 573<DD>Configure the transaction to not write or synchronously flush the log 574 it when commits. 575 <p> 576 This behavior may be set for a database environment using the 577 Environment.setMutableConfig method. Any value specified to this method 578 overrides that setting. 579 <p> 580 The default is false for this class and the database environment. 581 <p> 582<P> 583<DD><DL> 584</DL> 585</DD> 586<DD><DL> 587<DT><B>Parameters:</B><DD><CODE>noSync</CODE> - If true, transactions exhibit the ACI (atomicity, consistency, and 588 isolation) properties, but not D (durability); that is, database 589 integrity will be maintained, but if the application or system 590 fails, it is possible some number of the most recently committed 591 transactions may be undone during recovery. The number of 592 transactions at risk is governed by how many log updates can fit 593 into the log buffer, how often the operating system flushes dirty 594 buffers to disk, and how often the log is checkpointed.</DL> 595</DD> 596</DL> 597<HR> 598 599<A NAME="getNoSync()"><!-- --></A><H3> 600getNoSync</H3> 601<PRE> 602public boolean <B>getNoSync</B>()</PRE> 603<DL> 604<DD>Return if the transaction is configured to not write or synchronously 605 flush the log it when commits. 606 <p> 607<P> 608<DD><DL> 609</DL> 610</DD> 611<DD><DL> 612 613<DT><B>Returns:</B><DD>If the transaction is configured to not write or synchronously flush 614 the log it when commits.</DL> 615</DD> 616</DL> 617<HR> 618 619<A NAME="setNoWait(boolean)"><!-- --></A><H3> 620setNoWait</H3> 621<PRE> 622public void <B>setNoWait</B>(boolean noWait)</PRE> 623<DL> 624<DD>Configure the transaction to not wait if a lock request cannot be 625 immediately granted. 626 <p> 627 The default is false for this class and the database environment. 628 <p> 629<P> 630<DD><DL> 631</DL> 632</DD> 633<DD><DL> 634<DT><B>Parameters:</B><DD><CODE>noWait</CODE> - If true, transactions will not wait if a lock request cannot be 635 immediately granted, instead <A HREF="../../../com/sleepycat/db/DeadlockException.html" title="class in com.sleepycat.db"><CODE>DeadlockException</CODE></A> will be thrown.</DL> 636</DD> 637</DL> 638<HR> 639 640<A NAME="getNoWait()"><!-- --></A><H3> 641getNoWait</H3> 642<PRE> 643public boolean <B>getNoWait</B>()</PRE> 644<DL> 645<DD>Return if the transaction is configured to not wait if a lock 646 request cannot be immediately granted. 647 <p> 648<P> 649<DD><DL> 650</DL> 651</DD> 652<DD><DL> 653 654<DT><B>Returns:</B><DD>If the transaction is configured to not wait if a lock request 655 cannot be immediately granted.</DL> 656</DD> 657</DL> 658<HR> 659 660<A NAME="setSnapshot(boolean)"><!-- --></A><H3> 661setSnapshot</H3> 662<PRE> 663public void <B>setSnapshot</B>(boolean snapshot)</PRE> 664<DL> 665<DD>This transaction will execute with snapshot isolation. For databases 666 configured with <A HREF="../../../com/sleepycat/db/DatabaseConfig.html#setMultiversion(boolean)"><CODE>DatabaseConfig.setMultiversion(boolean)</CODE></A>, data values 667 will be read as they are when the transaction begins, without taking 668 read locks. 669 <p> 670 Updates operations performed in the transaction will cause a 671 <A HREF="../../../com/sleepycat/db/DeadlockException.html" title="class in com.sleepycat.db"><CODE>DeadlockException</CODE></A> to be thrown if data is modified 672 between reading and writing it. 673<P> 674<DD><DL> 675</DL> 676</DD> 677<DD><DL> 678</DL> 679</DD> 680</DL> 681<HR> 682 683<A NAME="getSnapshot()"><!-- --></A><H3> 684getSnapshot</H3> 685<PRE> 686public boolean <B>getSnapshot</B>()</PRE> 687<DL> 688<DD>Return true if the transaction is configured for Snapshot Isolation. 689<p> 690This method may be called at any time during the life of the application. 691<p> 692<P> 693<DD><DL> 694</DL> 695</DD> 696<DD><DL> 697 698<DT><B>Returns:</B><DD>True if the transaction is configured for Snapshot Isolation.</DL> 699</DD> 700</DL> 701<HR> 702 703<A NAME="setSync(boolean)"><!-- --></A><H3> 704setSync</H3> 705<PRE> 706public void <B>setSync</B>(boolean sync)</PRE> 707<DL> 708<DD>Configure the transaction to write and synchronously flush the log 709 it when commits. 710 <p> 711 This behavior may be set for a database environment using the 712 Environment.setMutableConfig method. Any value specified to this 713 method overrides that setting. 714 <p> 715 The default is false for this class and true for the database 716 environment. 717 <p> 718 If true is passed to both setSync and setNoSync, setSync will take 719 precedence. 720 <p> 721<P> 722<DD><DL> 723</DL> 724</DD> 725<DD><DL> 726<DT><B>Parameters:</B><DD><CODE>sync</CODE> - If true, transactions exhibit all the ACID (atomicity, consistency, 727 isolation, and durability) properties.</DL> 728</DD> 729</DL> 730<HR> 731 732<A NAME="getSync()"><!-- --></A><H3> 733getSync</H3> 734<PRE> 735public boolean <B>getSync</B>()</PRE> 736<DL> 737<DD>Return if the transaction is configured to write and synchronously 738 flush the log it when commits. 739 <p> 740<P> 741<DD><DL> 742</DL> 743</DD> 744<DD><DL> 745 746<DT><B>Returns:</B><DD>If the transaction is configured to write and synchronously flush 747 the log it when commits.</DL> 748</DD> 749</DL> 750<HR> 751 752<A NAME="setWait(boolean)"><!-- --></A><H3> 753setWait</H3> 754<PRE> 755public void <B>setWait</B>(boolean wait)</PRE> 756<DL> 757<DD>Configure the transaction to wait if a lock request cannot be 758 immediately granted. 759 <p> 760 The default is true unless <A HREF="../../../com/sleepycat/db/EnvironmentConfig.html#setTxnNoWait(boolean)"><CODE>EnvironmentConfig.setTxnNoWait(boolean)</CODE></A> is called. 761 <p> 762<P> 763<DD><DL> 764</DL> 765</DD> 766<DD><DL> 767<DT><B>Parameters:</B><DD><CODE>wait</CODE> - If true, transactions will wait if a lock request cannot be 768 immediately granted, instead <A HREF="../../../com/sleepycat/db/DeadlockException.html" title="class in com.sleepycat.db"><CODE>DeadlockException</CODE></A> will be thrown.</DL> 769</DD> 770</DL> 771<HR> 772 773<A NAME="getWait()"><!-- --></A><H3> 774getWait</H3> 775<PRE> 776public boolean <B>getWait</B>()</PRE> 777<DL> 778<DD>Return if the transaction is configured to wait if a lock 779 request cannot be immediately granted. 780 <p> 781<P> 782<DD><DL> 783</DL> 784</DD> 785<DD><DL> 786 787<DT><B>Returns:</B><DD>If the transaction is configured to wait if a lock request 788 cannot be immediately granted.</DL> 789</DD> 790</DL> 791<HR> 792 793<A NAME="setWriteNoSync(boolean)"><!-- --></A><H3> 794setWriteNoSync</H3> 795<PRE> 796public void <B>setWriteNoSync</B>(boolean writeNoSync)</PRE> 797<DL> 798<DD>Configure the transaction to write but not synchronously flush the log 799 it when commits. 800 <p> 801 This behavior may be set for a database environment using the 802 Environment.setMutableConfig method. Any value specified to this method 803 overrides that setting. 804 <p> 805 The default is false for this class and the database environment. 806 <p> 807<P> 808<DD><DL> 809</DL> 810</DD> 811<DD><DL> 812<DT><B>Parameters:</B><DD><CODE>writeNoSync</CODE> - If true, transactions exhibit the ACI (atomicity, consistency, and 813 isolation) properties, but not D (durability); that is, database 814 integrity will be maintained, but if the operating system 815 fails, it is possible some number of the most recently committed 816 transactions may be undone during recovery. The number of 817 transactions at risk is governed by how often the operating system 818 flushes dirty buffers to disk, and how often the log is 819 checkpointed.</DL> 820</DD> 821</DL> 822<HR> 823 824<A NAME="getWriteNoSync()"><!-- --></A><H3> 825getWriteNoSync</H3> 826<PRE> 827public boolean <B>getWriteNoSync</B>()</PRE> 828<DL> 829<DD>Return if the transaction is configured to write but not synchronously 830 flush the log it when commits. 831 <p> 832<P> 833<DD><DL> 834</DL> 835</DD> 836<DD><DL> 837 838<DT><B>Returns:</B><DD>If the transaction is configured to not write or synchronously flush 839 the log it when commits.</DL> 840</DD> 841</DL> 842<!-- ========= END OF CLASS DATA ========= --> 843<HR> 844 845 846<!-- ======= START OF BOTTOM NAVBAR ====== --> 847<A NAME="navbar_bottom"><!-- --></A> 848<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> 849<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> 850<TR> 851<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> 852<A NAME="navbar_bottom_firstrow"><!-- --></A> 853<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> 854 <TR ALIGN="center" VALIGN="top"> 855 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> 856 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> 857 <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> 858 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/TransactionConfig.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> 859 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> 860 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> 861 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> 862 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> 863 </TR> 864</TABLE> 865</TD> 866<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> 867<b>Berkeley DB</b><br><font size="-1"> version 4.7.25</font></EM> 868</TD> 869</TR> 870 871<TR> 872<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> 873 <A HREF="../../../com/sleepycat/db/Transaction.html" title="class in com.sleepycat.db"><B>PREV CLASS</B></A> 874 <A HREF="../../../com/sleepycat/db/TransactionStats.html" title="class in com.sleepycat.db"><B>NEXT CLASS</B></A></FONT></TD> 875<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> 876 <A HREF="../../../index.html?com/sleepycat/db/TransactionConfig.html" target="_top"><B>FRAMES</B></A> 877 <A HREF="TransactionConfig.html" target="_top"><B>NO FRAMES</B></A> 878 <SCRIPT type="text/javascript"> 879 <!-- 880 if(window==top) { 881 document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); 882 } 883 //--> 884</SCRIPT> 885<NOSCRIPT> 886 <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A> 887</NOSCRIPT> 888 889 890</FONT></TD> 891</TR> 892<TR> 893<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 894 SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> 895<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 896DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> 897</TR> 898</TABLE> 899<A NAME="skip-navbar_bottom"></A> 900<!-- ======== END OF BOTTOM NAVBAR ======= --> 901 902<HR> 903<font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 904</BODY> 905</HTML> 906
