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7TransactionStats (Oracle - Berkeley DB Java API)
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49<b>Berkeley DB</b><br><font size="-1"> version 4.7.25</font></EM>
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55&nbsp;<A HREF="../../../com/sleepycat/db/TransactionConfig.html" title="class in com.sleepycat.db"><B>PREV CLASS</B></A>&nbsp;
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76  SUMMARY:&nbsp;<A HREF="#nested_class_summary">NESTED</A>&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;CONSTR&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
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86<H2>
87<FONT SIZE="-1">
88com.sleepycat.db</FONT>
89<BR>
90Class TransactionStats</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.TransactionStats</B>
94</PRE>
95<HR>
96<DL>
97<DT><PRE>public class <B>TransactionStats</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></DL>
98</PRE>
99
100<P>
101Transaction statistics for a database environment.
102<P>
103
104<P>
105<HR>
106
107<P>
108<!-- ======== NESTED CLASS SUMMARY ======== -->
109
110<A NAME="nested_class_summary"><!-- --></A>
111<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
112<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
113<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
114<B>Nested Class Summary</B></FONT></TH>
115</TR>
116<TR BGCOLOR="white" CLASS="TableRowColor">
117<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
118<CODE>static&nbsp;class</CODE></FONT></TD>
119<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.Active.html" title="class in com.sleepycat.db">TransactionStats.Active</A></B></CODE>
120
121<BR>
122&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
123</TR>
124</TABLE>
125&nbsp;
126<!-- ========== METHOD SUMMARY =========== -->
127
128<A NAME="method_summary"><!-- --></A>
129<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
130<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
131<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
132<B>Method Summary</B></FONT></TH>
133</TR>
134<TR BGCOLOR="white" CLASS="TableRowColor">
135<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
136<CODE>&nbsp;<A HREF="../../../com/sleepycat/db/LogSequenceNumber.html" title="class in com.sleepycat.db">LogSequenceNumber</A></CODE></FONT></TD>
137<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getLastCkp()">getLastCkp</A></B>()</CODE>
138
139<BR>
140&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The LSN of the last checkpoint.</TD>
141</TR>
142<TR BGCOLOR="white" CLASS="TableRowColor">
143<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
144<CODE>&nbsp;int</CODE></FONT></TD>
145<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getLastTxnId()">getLastTxnId</A></B>()</CODE>
146
147<BR>
148&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The last transaction ID allocated.</TD>
149</TR>
150<TR BGCOLOR="white" CLASS="TableRowColor">
151<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
152<CODE>&nbsp;int</CODE></FONT></TD>
153<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getMaxNactive()">getMaxNactive</A></B>()</CODE>
154
155<BR>
156&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The maximum number of active transactions at any one time.</TD>
157</TR>
158<TR BGCOLOR="white" CLASS="TableRowColor">
159<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
160<CODE>&nbsp;int</CODE></FONT></TD>
161<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getMaxNsnapshot()">getMaxNsnapshot</A></B>()</CODE>
162
163<BR>
164&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The maximum number of transactions on the snapshot list at any one time.</TD>
165</TR>
166<TR BGCOLOR="white" CLASS="TableRowColor">
167<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
168<CODE>&nbsp;int</CODE></FONT></TD>
169<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getMaxTxns()">getMaxTxns</A></B>()</CODE>
170
171<BR>
172&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The maximum number of active transactions configured.</TD>
173</TR>
174<TR BGCOLOR="white" CLASS="TableRowColor">
175<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
176<CODE>&nbsp;int</CODE></FONT></TD>
177<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getNaborts()">getNaborts</A></B>()</CODE>
178
179<BR>
180&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of transactions that have aborted.</TD>
181</TR>
182<TR BGCOLOR="white" CLASS="TableRowColor">
183<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
184<CODE>&nbsp;int</CODE></FONT></TD>
185<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getNactive()">getNactive</A></B>()</CODE>
186
187<BR>
188&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of transactions that are currently active.</TD>
189</TR>
190<TR BGCOLOR="white" CLASS="TableRowColor">
191<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
192<CODE>&nbsp;int</CODE></FONT></TD>
193<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getNumBegins()">getNumBegins</A></B>()</CODE>
194
195<BR>
196&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of transactions that have begun.</TD>
197</TR>
198<TR BGCOLOR="white" CLASS="TableRowColor">
199<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
200<CODE>&nbsp;int</CODE></FONT></TD>
201<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getNumCommits()">getNumCommits</A></B>()</CODE>
202
203<BR>
204&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of transactions that have committed.</TD>
205</TR>
206<TR BGCOLOR="white" CLASS="TableRowColor">
207<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
208<CODE>&nbsp;int</CODE></FONT></TD>
209<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getNumRestores()">getNumRestores</A></B>()</CODE>
210
211<BR>
212&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of transactions that have been restored.</TD>
213</TR>
214<TR BGCOLOR="white" CLASS="TableRowColor">
215<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
216<CODE>&nbsp;int</CODE></FONT></TD>
217<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getNumSnapshot()">getNumSnapshot</A></B>()</CODE>
218
219<BR>
220&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of transactions on the snapshot list.</TD>
221</TR>
222<TR BGCOLOR="white" CLASS="TableRowColor">
223<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
224<CODE>&nbsp;int</CODE></FONT></TD>
225<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getRegionNowait()">getRegionNowait</A></B>()</CODE>
226
227<BR>
228&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of times that a thread of control was able to obtain the
229    region lock without waiting.</TD>
230</TR>
231<TR BGCOLOR="white" CLASS="TableRowColor">
232<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
233<CODE>&nbsp;int</CODE></FONT></TD>
234<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getRegionWait()">getRegionWait</A></B>()</CODE>
235
236<BR>
237&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of times that a thread of control was forced to wait
238    before obtaining the region lock.</TD>
239</TR>
240<TR BGCOLOR="white" CLASS="TableRowColor">
241<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
242<CODE>&nbsp;int</CODE></FONT></TD>
243<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getRegSize()">getRegSize</A></B>()</CODE>
244
245<BR>
246&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The size of the region.</TD>
247</TR>
248<TR BGCOLOR="white" CLASS="TableRowColor">
249<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
250<CODE>&nbsp;long</CODE></FONT></TD>
251<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getTimeCkp()">getTimeCkp</A></B>()</CODE>
252
253<BR>
254&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The time the last completed checkpoint finished (as the number of
255    seconds since the Epoch, returned by the IEEE/ANSI Std 1003.1
256    (POSIX) time interface).</TD>
257</TR>
258<TR BGCOLOR="white" CLASS="TableRowColor">
259<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
260<CODE>&nbsp;<A HREF="../../../com/sleepycat/db/TransactionStats.Active.html" title="class in com.sleepycat.db">TransactionStats.Active</A>[]</CODE></FONT></TD>
261<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#getTxnarray()">getTxnarray</A></B>()</CODE>
262
263<BR>
264&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
265</TR>
266<TR BGCOLOR="white" CLASS="TableRowColor">
267<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
268<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
269<TD><CODE><B><A HREF="../../../com/sleepycat/db/TransactionStats.html#toString()">toString</A></B>()</CODE>
270
271<BR>
272&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
273</TR>
274</TABLE>
275&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
276<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
277<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
278<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>
279</TR>
280<TR BGCOLOR="white" CLASS="TableRowColor">
281<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#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>
282</TR>
283</TABLE>
284&nbsp;
285<P>
286
287<!-- ============ METHOD DETAIL ========== -->
288
289<A NAME="method_detail"><!-- --></A>
290<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
291<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
292<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
293<B>Method Detail</B></FONT></TH>
294</TR>
295</TABLE>
296
297<A NAME="getNumRestores()"><!-- --></A><H3>
298getNumRestores</H3>
299<PRE>
300public int <B>getNumRestores</B>()</PRE>
301<DL>
302<DD>The number of transactions that have been restored.
303<P>
304<DD><DL>
305</DL>
306</DD>
307</DL>
308<HR>
309
310<A NAME="getLastCkp()"><!-- --></A><H3>
311getLastCkp</H3>
312<PRE>
313public <A HREF="../../../com/sleepycat/db/LogSequenceNumber.html" title="class in com.sleepycat.db">LogSequenceNumber</A> <B>getLastCkp</B>()</PRE>
314<DL>
315<DD>The LSN of the last checkpoint.
316<P>
317<DD><DL>
318</DL>
319</DD>
320</DL>
321<HR>
322
323<A NAME="getTimeCkp()"><!-- --></A><H3>
324getTimeCkp</H3>
325<PRE>
326public long <B>getTimeCkp</B>()</PRE>
327<DL>
328<DD>The time the last completed checkpoint finished (as the number of
329    seconds since the Epoch, returned by the IEEE/ANSI Std 1003.1
330    (POSIX) time interface).
331<P>
332<DD><DL>
333</DL>
334</DD>
335</DL>
336<HR>
337
338<A NAME="getLastTxnId()"><!-- --></A><H3>
339getLastTxnId</H3>
340<PRE>
341public int <B>getLastTxnId</B>()</PRE>
342<DL>
343<DD>The last transaction ID allocated.
344<P>
345<DD><DL>
346</DL>
347</DD>
348</DL>
349<HR>
350
351<A NAME="getMaxTxns()"><!-- --></A><H3>
352getMaxTxns</H3>
353<PRE>
354public int <B>getMaxTxns</B>()</PRE>
355<DL>
356<DD>The maximum number of active transactions configured.
357<P>
358<DD><DL>
359</DL>
360</DD>
361</DL>
362<HR>
363
364<A NAME="getNaborts()"><!-- --></A><H3>
365getNaborts</H3>
366<PRE>
367public int <B>getNaborts</B>()</PRE>
368<DL>
369<DD>The number of transactions that have aborted.
370<P>
371<DD><DL>
372</DL>
373</DD>
374</DL>
375<HR>
376
377<A NAME="getNumBegins()"><!-- --></A><H3>
378getNumBegins</H3>
379<PRE>
380public int <B>getNumBegins</B>()</PRE>
381<DL>
382<DD>The number of transactions that have begun.
383<P>
384<DD><DL>
385</DL>
386</DD>
387</DL>
388<HR>
389
390<A NAME="getNumCommits()"><!-- --></A><H3>
391getNumCommits</H3>
392<PRE>
393public int <B>getNumCommits</B>()</PRE>
394<DL>
395<DD>The number of transactions that have committed.
396<P>
397<DD><DL>
398</DL>
399</DD>
400</DL>
401<HR>
402
403<A NAME="getNactive()"><!-- --></A><H3>
404getNactive</H3>
405<PRE>
406public int <B>getNactive</B>()</PRE>
407<DL>
408<DD>The number of transactions that are currently active.
409<P>
410<DD><DL>
411</DL>
412</DD>
413</DL>
414<HR>
415
416<A NAME="getNumSnapshot()"><!-- --></A><H3>
417getNumSnapshot</H3>
418<PRE>
419public int <B>getNumSnapshot</B>()</PRE>
420<DL>
421<DD>The number of transactions on the snapshot list.  These are transactions
422    which modified a database opened with <A HREF="../../../com/sleepycat/db/DatabaseConfig.html#setMultiversion(boolean)"><CODE>DatabaseConfig.setMultiversion(boolean)</CODE></A>, and which have committed or aborted, but
423    the copies of pages they created are still in the cache.
424<P>
425<DD><DL>
426</DL>
427</DD>
428</DL>
429<HR>
430
431<A NAME="getMaxNactive()"><!-- --></A><H3>
432getMaxNactive</H3>
433<PRE>
434public int <B>getMaxNactive</B>()</PRE>
435<DL>
436<DD>The maximum number of active transactions at any one time.
437<P>
438<DD><DL>
439</DL>
440</DD>
441</DL>
442<HR>
443
444<A NAME="getMaxNsnapshot()"><!-- --></A><H3>
445getMaxNsnapshot</H3>
446<PRE>
447public int <B>getMaxNsnapshot</B>()</PRE>
448<DL>
449<DD>The maximum number of transactions on the snapshot list at any one time.
450<P>
451<DD><DL>
452</DL>
453</DD>
454</DL>
455<HR>
456
457<A NAME="getTxnarray()"><!-- --></A><H3>
458getTxnarray</H3>
459<PRE>
460public <A HREF="../../../com/sleepycat/db/TransactionStats.Active.html" title="class in com.sleepycat.db">TransactionStats.Active</A>[] <B>getTxnarray</B>()</PRE>
461<DL>
462<DD><DL>
463</DL>
464</DD>
465</DL>
466<HR>
467
468<A NAME="getRegionWait()"><!-- --></A><H3>
469getRegionWait</H3>
470<PRE>
471public int <B>getRegionWait</B>()</PRE>
472<DL>
473<DD>The number of times that a thread of control was forced to wait
474    before obtaining the region lock.
475<P>
476<DD><DL>
477</DL>
478</DD>
479</DL>
480<HR>
481
482<A NAME="getRegionNowait()"><!-- --></A><H3>
483getRegionNowait</H3>
484<PRE>
485public int <B>getRegionNowait</B>()</PRE>
486<DL>
487<DD>The number of times that a thread of control was able to obtain the
488    region lock without waiting.
489<P>
490<DD><DL>
491</DL>
492</DD>
493</DL>
494<HR>
495
496<A NAME="getRegSize()"><!-- --></A><H3>
497getRegSize</H3>
498<PRE>
499public int <B>getRegSize</B>()</PRE>
500<DL>
501<DD>The size of the region.
502<P>
503<DD><DL>
504</DL>
505</DD>
506</DL>
507<HR>
508
509<A NAME="toString()"><!-- --></A><H3>
510toString</H3>
511<PRE>
512public <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
513<DL>
514<DD>
515<P>
516<DD><DL>
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