<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--NewPage--> <HTML> <HEAD> <!-- Generated by javadoc (build 1.6.0_0) on Wed Dec 30 04:50:32 EST 2009 --> <TITLE> TransactionConfig </TITLE> <META NAME="date" CONTENT="2009-12-30"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { if (location.href.indexOf('is-external=true') == -1) { parent.document.title="TransactionConfig"; } } </SCRIPT> <NOSCRIPT> </NOSCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();"> <HR> <!-- ========= START OF TOP NAVBAR ======= --> <A NAME="navbar_top"><!-- --></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" 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VALIGN="top" ROWSPAN=3><EM> </EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../com/sleepycat/db/Transaction.html" title="class in com.sleepycat.db"><B>PREV CLASS</B></A> <A HREF="../../../com/sleepycat/db/TransactionStats.html" title="class in com.sleepycat.db"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?com/sleepycat/db/TransactionConfig.html" target="_top"><B>FRAMES</B></A> <A HREF="TransactionConfig.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A> <!-- ========= END OF TOP NAVBAR ========= --> <HR> <!-- ======== START OF CLASS DATA ======== --> <H2> <FONT SIZE="-1"> com.sleepycat.db</FONT> <BR> Class TransactionConfig</H2> <PRE> java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.sleepycat.db.TransactionConfig</B> </PRE> <DL> <DT><B>All Implemented Interfaces:</B> <DD>java.lang.Cloneable</DD> </DL> <HR> <DL> <DT><PRE>public class <B>TransactionConfig</B><DT>extends java.lang.Object<DT>implements java.lang.Cloneable</DL> </PRE> <P> Specifies the attributes of a database environment transaction. <P> <P> <HR> <P> <!-- =========== FIELD SUMMARY =========== --> <A NAME="field_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Field Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static <A HREF="../../../com/sleepycat/db/TransactionConfig.html" title="class in com.sleepycat.db">TransactionConfig</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#DEFAULT">DEFAULT</A></B></CODE> <BR> Default configuration used if null is passed to methods that create a transaction.</TD> </TR> </TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <A NAME="constructor_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Constructor Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#TransactionConfig()">TransactionConfig</A></B>()</CODE> <BR> An instance created using the default constructor is initialized with the system's default settings.</TD> </TR> </TABLE> <!-- ========== METHOD SUMMARY =========== --> <A NAME="method_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Method Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getDegree2()">getDegree2</A></B>()</CODE> <BR> <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 database isolation terminology.</I></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getDirtyRead()">getDirtyRead</A></B>()</CODE> <BR> <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 database isolation terminology.</I></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getNoSync()">getNoSync</A></B>()</CODE> <BR> Return if the transaction is configured to not write or synchronously flush the log it when commits.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getNoWait()">getNoWait</A></B>()</CODE> <BR> Return if the transaction is configured to not wait if a lock request cannot be immediately granted.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getReadCommitted()">getReadCommitted</A></B>()</CODE> <BR> Return if the transaction is configured for read committed isolation.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getReadUncommitted()">getReadUncommitted</A></B>()</CODE> <BR> Return if read operations performed by the transaction are configured to return modified but not yet committed data.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getSnapshot()">getSnapshot</A></B>()</CODE> <BR> Return true if the transaction is configured for Snapshot Isolation.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getSync()">getSync</A></B>()</CODE> <BR> Return if the transaction is configured to write and synchronously flush the log it when commits.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getWait()">getWait</A></B>()</CODE> <BR> Return if the transaction is configured to wait if a lock request cannot be immediately granted.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#getWriteNoSync()">getWriteNoSync</A></B>()</CODE> <BR> Return if the transaction is configured to write but not synchronously flush the log it when commits.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setDegree2(boolean)">setDegree2</A></B>(boolean degree2)</CODE> <BR> <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 database isolation terminology.</I></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setDirtyRead(boolean)">setDirtyRead</A></B>(boolean dirtyRead)</CODE> <BR> <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 database isolation terminology.</I></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setNoSync(boolean)">setNoSync</A></B>(boolean noSync)</CODE> <BR> Configure the transaction to not write or synchronously flush the log it when commits.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setNoWait(boolean)">setNoWait</A></B>(boolean noWait)</CODE> <BR> Configure the transaction to not wait if a lock request cannot be immediately granted.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setReadCommitted(boolean)">setReadCommitted</A></B>(boolean readCommitted)</CODE> <BR> Configure the transaction for read committed isolation.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setReadUncommitted(boolean)">setReadUncommitted</A></B>(boolean readUncommitted)</CODE> <BR> Configure read operations performed by the transaction to return modified but not yet committed data.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setSnapshot(boolean)">setSnapshot</A></B>(boolean snapshot)</CODE> <BR> This transaction will execute with snapshot isolation.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setSync(boolean)">setSync</A></B>(boolean sync)</CODE> <BR> Configure the transaction to write and synchronously flush the log it when commits.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setWait(boolean)">setWait</A></B>(boolean wait)</CODE> <BR> Configure the transaction to wait if a lock request cannot be immediately granted.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionConfig.html#setWriteNoSync(boolean)">setWriteNoSync</A></B>(boolean writeNoSync)</CODE> <BR> Configure the transaction to write but not synchronously flush the log it when commits.</TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD> </TR> </TABLE> <P> <!-- ============ FIELD DETAIL =========== --> <A NAME="field_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Field Detail</B></FONT></TH> </TR> </TABLE> <A NAME="DEFAULT"><!-- --></A><H3> DEFAULT</H3> <PRE> public static final <A HREF="../../../com/sleepycat/db/TransactionConfig.html" title="class in com.sleepycat.db">TransactionConfig</A> <B>DEFAULT</B></PRE> <DL> <DD>Default configuration used if null is passed to methods that create a transaction. <P> <DL> </DL> </DL> <!-- ========= CONSTRUCTOR DETAIL ======== --> <A NAME="constructor_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Constructor Detail</B></FONT></TH> </TR> </TABLE> <A NAME="TransactionConfig()"><!-- --></A><H3> TransactionConfig</H3> <PRE> public <B>TransactionConfig</B>()</PRE> <DL> <DD>An instance created using the default constructor is initialized with the system's default settings. <P> </DL> <!-- ============ METHOD DETAIL ========== --> <A NAME="method_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Method Detail</B></FONT></TH> </TR> </TABLE> <A NAME="setReadCommitted(boolean)"><!-- --></A><H3> setReadCommitted</H3> <PRE> public void <B>setReadCommitted</B>(boolean readCommitted)</PRE> <DL> <DD>Configure the transaction for read committed isolation. <p> This ensures the stability of the current data item read by the cursor but permits data read by this transaction to be modified or deleted prior to the commit of the transaction. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>readCommitted</CODE> - If true, configure the transaction for read committed isolation.</DL> </DD> </DL> <HR> <A NAME="getReadCommitted()"><!-- --></A><H3> getReadCommitted</H3> <PRE> public boolean <B>getReadCommitted</B>()</PRE> <DL> <DD>Return if the transaction is configured for read committed isolation. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>If the transaction is configured for read committed isolation.</DL> </DD> </DL> <HR> <A NAME="setDegree2(boolean)"><!-- --></A><H3> setDegree2</H3> <PRE> public void <B>setDegree2</B>(boolean degree2)</PRE> <DL> <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 database isolation terminology.</I> <P> <DD>Configure the transaction for read committed isolation. <p> This ensures the stability of the current data item read by the cursor but permits data read by this transaction to be modified or deleted prior to the commit of the transaction. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>degree2</CODE> - If true, configure the transaction for read committed isolation. <p></DL> </DD> </DL> <HR> <A NAME="getDegree2()"><!-- --></A><H3> getDegree2</H3> <PRE> public boolean <B>getDegree2</B>()</PRE> <DL> <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 database isolation terminology.</I> <P> <DD>Return if the transaction is configured for read committed isolation. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>If the transaction is configured for read committed isolation. <p></DL> </DD> </DL> <HR> <A NAME="setReadUncommitted(boolean)"><!-- --></A><H3> setReadUncommitted</H3> <PRE> public void <B>setReadUncommitted</B>(boolean readUncommitted)</PRE> <DL> <DD>Configure read operations performed by the transaction to return modified but not yet committed data. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>readUncommitted</CODE> - If true, configure read operations performed by the transaction to return modified but not yet committed data.</DL> </DD> </DL> <HR> <A NAME="getReadUncommitted()"><!-- --></A><H3> getReadUncommitted</H3> <PRE> public boolean <B>getReadUncommitted</B>()</PRE> <DL> <DD>Return if read operations performed by the transaction are configured to return modified but not yet committed data. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>If read operations performed by the transaction are configured to return modified but not yet committed data.</DL> </DD> </DL> <HR> <A NAME="setDirtyRead(boolean)"><!-- --></A><H3> setDirtyRead</H3> <PRE> public void <B>setDirtyRead</B>(boolean dirtyRead)</PRE> <DL> <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 database isolation terminology.</I> <P> <DD>Configure read operations performed by the transaction to return modified but not yet committed data. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>dirtyRead</CODE> - If true, configure read operations performed by the transaction to return modified but not yet committed data. <p></DL> </DD> </DL> <HR> <A NAME="getDirtyRead()"><!-- --></A><H3> getDirtyRead</H3> <PRE> public boolean <B>getDirtyRead</B>()</PRE> <DL> <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 database isolation terminology.</I> <P> <DD>Return if read operations performed by the transaction are configured to return modified but not yet committed data. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>If read operations performed by the transaction are configured to return modified but not yet committed data. <p></DL> </DD> </DL> <HR> <A NAME="setNoSync(boolean)"><!-- --></A><H3> setNoSync</H3> <PRE> public void <B>setNoSync</B>(boolean noSync)</PRE> <DL> <DD>Configure the transaction to not write or synchronously flush the log it when commits. <p> This behavior may be set for a database environment using the Environment.setMutableConfig method. Any value specified to this method overrides that setting. <p> The default is false for this class and the database environment. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>noSync</CODE> - If true, transactions exhibit the ACI (atomicity, consistency, and isolation) properties, but not D (durability); that is, database integrity will be maintained, but if the application or system fails, it is possible some number of the most recently committed transactions may be undone during recovery. The number of transactions at risk is governed by how many log updates can fit into the log buffer, how often the operating system flushes dirty buffers to disk, and how often the log is checkpointed.</DL> </DD> </DL> <HR> <A NAME="getNoSync()"><!-- --></A><H3> getNoSync</H3> <PRE> public boolean <B>getNoSync</B>()</PRE> <DL> <DD>Return if the transaction is configured to not write or synchronously flush the log it when commits. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>If the transaction is configured to not write or synchronously flush the log it when commits.</DL> </DD> </DL> <HR> <A NAME="setNoWait(boolean)"><!-- --></A><H3> setNoWait</H3> <PRE> public void <B>setNoWait</B>(boolean noWait)</PRE> <DL> <DD>Configure the transaction to not wait if a lock request cannot be immediately granted. <p> The default is false for this class and the database environment. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>noWait</CODE> - If true, transactions will not wait if a lock request cannot be immediately granted, instead <A HREF="../../../com/sleepycat/db/DeadlockException.html" title="class in com.sleepycat.db"><CODE>DeadlockException</CODE></A> will be thrown.</DL> </DD> </DL> <HR> <A NAME="getNoWait()"><!-- --></A><H3> getNoWait</H3> <PRE> public boolean <B>getNoWait</B>()</PRE> <DL> <DD>Return if the transaction is configured to not wait if a lock request cannot be immediately granted. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>If the transaction is configured to not wait if a lock request cannot be immediately granted.</DL> </DD> </DL> <HR> <A NAME="setSnapshot(boolean)"><!-- --></A><H3> setSnapshot</H3> <PRE> public void <B>setSnapshot</B>(boolean snapshot)</PRE> <DL> <DD>This transaction will execute with snapshot isolation. For databases configured with <A HREF="../../../com/sleepycat/db/DatabaseConfig.html#setMultiversion(boolean)"><CODE>DatabaseConfig.setMultiversion(boolean)</CODE></A>, data values will be read as they are when the transaction begins, without taking read locks. <p> Updates operations performed in the transaction will cause a <A HREF="../../../com/sleepycat/db/DeadlockException.html" title="class in com.sleepycat.db"><CODE>DeadlockException</CODE></A> to be thrown if data is modified between reading and writing it. <P> <DD><DL> </DL> </DD> <DD><DL> </DL> </DD> </DL> <HR> <A NAME="getSnapshot()"><!-- --></A><H3> getSnapshot</H3> <PRE> public boolean <B>getSnapshot</B>()</PRE> <DL> <DD>Return true if the transaction is configured for Snapshot Isolation. <p> This method may be called at any time during the life of the application. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>True if the transaction is configured for Snapshot Isolation.</DL> </DD> </DL> <HR> <A NAME="setSync(boolean)"><!-- --></A><H3> setSync</H3> <PRE> public void <B>setSync</B>(boolean sync)</PRE> <DL> <DD>Configure the transaction to write and synchronously flush the log it when commits. <p> This behavior may be set for a database environment using the Environment.setMutableConfig method. Any value specified to this method overrides that setting. <p> The default is false for this class and true for the database environment. <p> If true is passed to both setSync and setNoSync, setSync will take precedence. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>sync</CODE> - If true, transactions exhibit all the ACID (atomicity, consistency, isolation, and durability) properties.</DL> </DD> </DL> <HR> <A NAME="getSync()"><!-- --></A><H3> getSync</H3> <PRE> public boolean <B>getSync</B>()</PRE> <DL> <DD>Return if the transaction is configured to write and synchronously flush the log it when commits. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>If the transaction is configured to write and synchronously flush the log it when commits.</DL> </DD> </DL> <HR> <A NAME="setWait(boolean)"><!-- --></A><H3> setWait</H3> <PRE> public void <B>setWait</B>(boolean wait)</PRE> <DL> <DD>Configure the transaction to wait if a lock request cannot be immediately granted. <p> The default is true unless <A HREF="../../../com/sleepycat/db/EnvironmentConfig.html#setTxnNoWait(boolean)"><CODE>EnvironmentConfig.setTxnNoWait(boolean)</CODE></A> is called. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>wait</CODE> - If true, transactions will wait if a lock request cannot be immediately granted, instead <A HREF="../../../com/sleepycat/db/DeadlockException.html" title="class in com.sleepycat.db"><CODE>DeadlockException</CODE></A> will be thrown.</DL> </DD> </DL> <HR> <A NAME="getWait()"><!-- --></A><H3> getWait</H3> <PRE> public boolean <B>getWait</B>()</PRE> <DL> <DD>Return if the transaction is configured to wait if a lock request cannot be immediately granted. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>If the transaction is configured to wait if a lock request cannot be immediately granted.</DL> </DD> </DL> <HR> <A NAME="setWriteNoSync(boolean)"><!-- --></A><H3> setWriteNoSync</H3> <PRE> public void <B>setWriteNoSync</B>(boolean writeNoSync)</PRE> <DL> <DD>Configure the transaction to write but not synchronously flush the log it when commits. <p> This behavior may be set for a database environment using the Environment.setMutableConfig method. Any value specified to this method overrides that setting. <p> The default is false for this class and the database environment. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>writeNoSync</CODE> - If true, transactions exhibit the ACI (atomicity, consistency, and isolation) properties, but not D (durability); that is, database integrity will be maintained, but if the operating system fails, it is possible some number of the most recently committed transactions may be undone during recovery. The number of transactions at risk is governed by how often the operating system flushes dirty buffers to disk, and how often the log is checkpointed.</DL> </DD> </DL> <HR> <A NAME="getWriteNoSync()"><!-- --></A><H3> getWriteNoSync</H3> <PRE> public boolean <B>getWriteNoSync</B>()</PRE> <DL> <DD>Return if the transaction is configured to write but not synchronously flush the log it when commits. <p> <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>If the transaction is configured to not write or synchronously flush the log it when commits.</DL> </DD> </DL> <!-- ========= END OF CLASS DATA ========= --> <HR> <!-- ======= START OF BOTTOM NAVBAR ====== --> <A NAME="navbar_bottom"><!-- --></A> <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_bottom_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> </EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../com/sleepycat/db/Transaction.html" title="class in com.sleepycat.db"><B>PREV CLASS</B></A> <A HREF="../../../com/sleepycat/db/TransactionStats.html" title="class in com.sleepycat.db"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?com/sleepycat/db/TransactionConfig.html" target="_top"><B>FRAMES</B></A> <A HREF="TransactionConfig.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_bottom"></A> <!-- ======== END OF BOTTOM NAVBAR ======= --> <HR> </BODY> </HTML>