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8JDBCAppender (Apache Log4j 1.2.16 API)
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92org.apache.log4j.jdbc</FONT>
93<BR>
94Class JDBCAppender</H2>
95<PRE>
96<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
97 <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">org.apache.log4j.AppenderSkeleton</A>
98 <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.log4j.jdbc.JDBCAppender</B>
99</PRE>
100<DL>
101<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</A>, <A HREF="../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</A></DD>
102</DL>
103<HR>
104<DL>
105<DT><PRE>public class <B>JDBCAppender</B><DT>extends <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">AppenderSkeleton</A><DT>implements <A HREF="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</A></DL>
106</PRE>
107
108<P>
109The JDBCAppender provides for sending log events to a database.
110
111 <p><b><font color="#FF2222">WARNING: This version of JDBCAppender
112 is very likely to be completely replaced in the future. Moreoever,
113 it does not log exceptions</font></b>.
114
115 <p>Each append call adds to an <code>ArrayList</code> buffer. When
116 the buffer is filled each log event is placed in a sql statement
117 (configurable) and executed.
118
119 <b>BufferSize</b>, <b>db URL</b>, <b>User</b>, & <b>Password</b> are
120 configurable options in the standard log4j ways.
121
122 <p>The <code>setSql(String sql)</code> sets the SQL statement to be
123 used for logging -- this statement is sent to a
124 <code>PatternLayout</code> (either created automaticly by the
125 appender or added by the user). Therefore by default all the
126 conversion patterns in <code>PatternLayout</code> can be used
127 inside of the statement. (see the test cases for examples)
128
129 <p>Overriding the <A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#getLogStatement(org.apache.log4j.spi.LoggingEvent)"><CODE>getLogStatement(org.apache.log4j.spi.LoggingEvent)</CODE></A> method allows more
130 explicit control of the statement used for logging.
131
132 <p>For use as a base class:
133
134 <ul>
135
136 <li>Override <code>getConnection()</code> to pass any connection
137 you want. Typically this is used to enable application wide
138 connection pooling.
139
140 <li>Override <code>closeConnection(Connection con)</code> -- if
141 you override getConnection make sure to implement
142 <code>closeConnection</code> to handle the connection you
143 generated. Typically this would return the connection to the
144 pool it came from.
145
146 <li>Override <code>getLogStatement(LoggingEvent event)</code> to
147 produce specialized or dynamic statements. The default uses the
148 sql option value.
149
150 </ul>
151<P>
152
153<P>
154<DL>
155<DT><B>Author:</B></DT>
156 <DD>Kevin Steppe (<A HREF="mailto:ksteppe@pacbell.net">ksteppe@pacbell.net</A>)</DD>
157</DL>
158<HR>
159
160<P>
161<!-- =========== FIELD SUMMARY =========== -->
162
163<A NAME="field_summary"><!-- --></A>
164<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
165<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
166<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
167<B>Field Summary</B></FONT></TH>
168</TR>
169<TR BGCOLOR="white" CLASS="TableRowColor">
170<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
171<CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A></CODE></FONT></TD>
172<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#buffer">buffer</A></B></CODE>
173
174<BR>
175 ArrayList holding the buffer of Logging Events.</TD>
176</TR>
177<TR BGCOLOR="white" CLASS="TableRowColor">
178<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
179<CODE>protected int</CODE></FONT></TD>
180<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#bufferSize">bufferSize</A></B></CODE>
181
182<BR>
183 size of LoggingEvent buffer before writting to the database.</TD>
184</TR>
185<TR BGCOLOR="white" CLASS="TableRowColor">
186<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
187<CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/Connection.html?is-external=true" title="class or interface in java.sql">Connection</A></CODE></FONT></TD>
188<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#connection">connection</A></B></CODE>
189
190<BR>
191 Connection used by default.</TD>
192</TR>
193<TR BGCOLOR="white" CLASS="TableRowColor">
194<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
195<CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
196<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#databasePassword">databasePassword</A></B></CODE>
197
198<BR>
199 User to use for default connection handling</TD>
200</TR>
201<TR BGCOLOR="white" CLASS="TableRowColor">
202<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
203<CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
204<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#databaseURL">databaseURL</A></B></CODE>
205
206<BR>
207 URL of the DB for default connection handling</TD>
208</TR>
209<TR BGCOLOR="white" CLASS="TableRowColor">
210<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
211<CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
212<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#databaseUser">databaseUser</A></B></CODE>
213
214<BR>
215 User to connect as for default connection handling</TD>
216</TR>
217<TR BGCOLOR="white" CLASS="TableRowColor">
218<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
219<CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A></CODE></FONT></TD>
220<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#removes">removes</A></B></CODE>
221
222<BR>
223 Helper object for clearing out the buffer</TD>
224</TR>
225<TR BGCOLOR="white" CLASS="TableRowColor">
226<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
227<CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
228<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#sqlStatement">sqlStatement</A></B></CODE>
229
230<BR>
231 Stores the string given to the pattern layout for conversion into a SQL
232 statement, eg: insert into LogTable (Thread, Class, Message) values
233 ("%t", "%c", "%m").</TD>
234</TR>
235</TABLE>
236 <A NAME="fields_inherited_from_class_org.apache.log4j.AppenderSkeleton"><!-- --></A>
237<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
238<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
239<TH ALIGN="left"><B>Fields inherited from class org.apache.log4j.<A HREF="../../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">AppenderSkeleton</A></B></TH>
240</TR>
241<TR BGCOLOR="white" CLASS="TableRowColor">
242<TD><CODE><A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#closed">closed</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#errorHandler">errorHandler</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#headFilter">headFilter</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#layout">layout</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#name">name</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#tailFilter">tailFilter</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#threshold">threshold</A></CODE></TD>
243</TR>
244</TABLE>
245
246<!-- ======== CONSTRUCTOR SUMMARY ======== -->
247
248<A NAME="constructor_summary"><!-- --></A>
249<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
250<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
251<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
252<B>Constructor Summary</B></FONT></TH>
253</TR>
254<TR BGCOLOR="white" CLASS="TableRowColor">
255<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#JDBCAppender()">JDBCAppender</A></B>()</CODE>
256
257<BR>
258 </TD>
259</TR>
260</TABLE>
261
262<!-- ========== METHOD SUMMARY =========== -->
263
264<A NAME="method_summary"><!-- --></A>
265<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
266<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
267<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
268<B>Method Summary</B></FONT></TH>
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="../../../../org/apache/log4j/jdbc/JDBCAppender.html#append(org.apache.log4j.spi.LoggingEvent)">append</A></B>(<A HREF="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</A> event)</CODE>
274
275<BR>
276 Adds the event to the buffer.</TD>
277</TR>
278<TR BGCOLOR="white" CLASS="TableRowColor">
279<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
280<CODE> void</CODE></FONT></TD>
281<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#close()">close</A></B>()</CODE>
282
283<BR>
284 Closes the appender, flushing the buffer first then closing the default
285 connection if it is open.</TD>
286</TR>
287<TR BGCOLOR="white" CLASS="TableRowColor">
288<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
289<CODE>protected void</CODE></FONT></TD>
290<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#closeConnection(java.sql.Connection)">closeConnection</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/Connection.html?is-external=true" title="class or interface in java.sql">Connection</A> con)</CODE>
291
292<BR>
293 Override this to return the connection to a pool, or to clean up the
294 resource.</TD>
295</TR>
296<TR BGCOLOR="white" CLASS="TableRowColor">
297<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
298<CODE>protected void</CODE></FONT></TD>
299<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#execute(java.lang.String)">execute</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> sql)</CODE>
300
301<BR>
302 Override this to provide an alertnate method of getting
303 connections (such as caching).</TD>
304</TR>
305<TR BGCOLOR="white" CLASS="TableRowColor">
306<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
307<CODE> void</CODE></FONT></TD>
308<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#finalize()">finalize</A></B>()</CODE>
309
310<BR>
311 closes the appender before disposal</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="../../../../org/apache/log4j/jdbc/JDBCAppender.html#flushBuffer()">flushBuffer</A></B>()</CODE>
317
318<BR>
319 loops through the buffer of LoggingEvents, gets a
320 sql string from getLogStatement() and sends it to execute().</TD>
321</TR>
322<TR BGCOLOR="white" CLASS="TableRowColor">
323<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
324<CODE> int</CODE></FONT></TD>
325<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#getBufferSize()">getBufferSize</A></B>()</CODE>
326
327<BR>
328 </TD>
329</TR>
330<TR BGCOLOR="white" CLASS="TableRowColor">
331<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
332<CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/Connection.html?is-external=true" title="class or interface in java.sql">Connection</A></CODE></FONT></TD>
333<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#getConnection()">getConnection</A></B>()</CODE>
334
335<BR>
336 Override this to link with your connection pooling system.</TD>
337</TR>
338<TR BGCOLOR="white" CLASS="TableRowColor">
339<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
340<CODE> boolean</CODE></FONT></TD>
341<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#getLocationInfo()">getLocationInfo</A></B>()</CODE>
342
343<BR>
344 Gets whether the location of the logging request call
345 should be captured.</TD>
346</TR>
347<TR BGCOLOR="white" CLASS="TableRowColor">
348<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
349<CODE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
350<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#getLogStatement(org.apache.log4j.spi.LoggingEvent)">getLogStatement</A></B>(<A HREF="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</A> event)</CODE>
351
352<BR>
353 By default getLogStatement sends the event to the required Layout object.</TD>
354</TR>
355<TR BGCOLOR="white" CLASS="TableRowColor">
356<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
357<CODE> <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
358<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#getPassword()">getPassword</A></B>()</CODE>
359
360<BR>
361 </TD>
362</TR>
363<TR BGCOLOR="white" CLASS="TableRowColor">
364<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
365<CODE> <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
366<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#getSql()">getSql</A></B>()</CODE>
367
368<BR>
369 Returns pre-formated statement eg: insert into LogTable (msg) values ("%m")</TD>
370</TR>
371<TR BGCOLOR="white" CLASS="TableRowColor">
372<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
373<CODE> <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
374<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#getURL()">getURL</A></B>()</CODE>
375
376<BR>
377 </TD>
378</TR>
379<TR BGCOLOR="white" CLASS="TableRowColor">
380<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
381<CODE> <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
382<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#getUser()">getUser</A></B>()</CODE>
383
384<BR>
385 </TD>
386</TR>
387<TR BGCOLOR="white" CLASS="TableRowColor">
388<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
389<CODE> boolean</CODE></FONT></TD>
390<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#requiresLayout()">requiresLayout</A></B>()</CODE>
391
392<BR>
393 JDBCAppender requires a layout.</TD>
394</TR>
395<TR BGCOLOR="white" CLASS="TableRowColor">
396<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
397<CODE> void</CODE></FONT></TD>
398<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#setBufferSize(int)">setBufferSize</A></B>(int newBufferSize)</CODE>
399
400<BR>
401 </TD>
402</TR>
403<TR BGCOLOR="white" CLASS="TableRowColor">
404<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
405<CODE> void</CODE></FONT></TD>
406<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#setDriver(java.lang.String)">setDriver</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> driverClass)</CODE>
407
408<BR>
409 Ensures that the given driver class has been loaded for sql connection
410 creation.</TD>
411</TR>
412<TR BGCOLOR="white" CLASS="TableRowColor">
413<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
414<CODE> void</CODE></FONT></TD>
415<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#setLocationInfo(boolean)">setLocationInfo</A></B>(boolean flag)</CODE>
416
417<BR>
418 The <b>LocationInfo</b> option takes a boolean value.</TD>
419</TR>
420<TR BGCOLOR="white" CLASS="TableRowColor">
421<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
422<CODE> void</CODE></FONT></TD>
423<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#setPassword(java.lang.String)">setPassword</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> password)</CODE>
424
425<BR>
426 </TD>
427</TR>
428<TR BGCOLOR="white" CLASS="TableRowColor">
429<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
430<CODE> void</CODE></FONT></TD>
431<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#setSql(java.lang.String)">setSql</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> s)</CODE>
432
433<BR>
434 </TD>
435</TR>
436<TR BGCOLOR="white" CLASS="TableRowColor">
437<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
438<CODE> void</CODE></FONT></TD>
439<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#setURL(java.lang.String)">setURL</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> url)</CODE>
440
441<BR>
442 </TD>
443</TR>
444<TR BGCOLOR="white" CLASS="TableRowColor">
445<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
446<CODE> void</CODE></FONT></TD>
447<TD><CODE><B><A HREF="../../../../org/apache/log4j/jdbc/JDBCAppender.html#setUser(java.lang.String)">setUser</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> user)</CODE>
448
449<BR>
450 </TD>
451</TR>
452</TABLE>
453 <A NAME="methods_inherited_from_class_org.apache.log4j.AppenderSkeleton"><!-- --></A>
454<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
455<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
456<TH ALIGN="left"><B>Methods inherited from class org.apache.log4j.<A HREF="../../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">AppenderSkeleton</A></B></TH>
457</TR>
458<TR BGCOLOR="white" CLASS="TableRowColor">
459<TD><CODE><A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#activateOptions()">activateOptions</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#addFilter(org.apache.log4j.spi.Filter)">addFilter</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#clearFilters()">clearFilters</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#doAppend(org.apache.log4j.spi.LoggingEvent)">doAppend</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#getErrorHandler()">getErrorHandler</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#getFilter()">getFilter</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#getFirstFilter()">getFirstFilter</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#getLayout()">getLayout</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#getName()">getName</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#getThreshold()">getThreshold</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#isAsSevereAsThreshold(org.apache.log4j.Priority)">isAsSevereAsThreshold</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#setErrorHandler(org.apache.log4j.spi.ErrorHandler)">setErrorHandler</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#setLayout(org.apache.log4j.Layout)">setLayout</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#setName(java.lang.String)">setName</A>, <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#setThreshold(org.apache.log4j.Priority)">setThreshold</A></CODE></TD>
460</TR>
461</TABLE>
462 <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
463<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
464<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
465<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
466</TR>
467<TR BGCOLOR="white" CLASS="TableRowColor">
468<TD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
469</TR>
470</TABLE>
471 <A NAME="methods_inherited_from_class_org.apache.log4j.Appender"><!-- --></A>
472<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
473<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
474<TH ALIGN="left"><B>Methods inherited from interface org.apache.log4j.<A HREF="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</A></B></TH>
475</TR>
476<TR BGCOLOR="white" CLASS="TableRowColor">
477<TD><CODE><A HREF="../../../../org/apache/log4j/Appender.html#addFilter(org.apache.log4j.spi.Filter)">addFilter</A>, <A HREF="../../../../org/apache/log4j/Appender.html#clearFilters()">clearFilters</A>, <A HREF="../../../../org/apache/log4j/Appender.html#doAppend(org.apache.log4j.spi.LoggingEvent)">doAppend</A>, <A HREF="../../../../org/apache/log4j/Appender.html#getErrorHandler()">getErrorHandler</A>, <A HREF="../../../../org/apache/log4j/Appender.html#getFilter()">getFilter</A>, <A HREF="../../../../org/apache/log4j/Appender.html#getLayout()">getLayout</A>, <A HREF="../../../../org/apache/log4j/Appender.html#getName()">getName</A>, <A HREF="../../../../org/apache/log4j/Appender.html#setErrorHandler(org.apache.log4j.spi.ErrorHandler)">setErrorHandler</A>, <A HREF="../../../../org/apache/log4j/Appender.html#setLayout(org.apache.log4j.Layout)">setLayout</A>, <A HREF="../../../../org/apache/log4j/Appender.html#setName(java.lang.String)">setName</A></CODE></TD>
478</TR>
479</TABLE>
480
481<P>
482
483<!-- ============ FIELD DETAIL =========== -->
484
485<A NAME="field_detail"><!-- --></A>
486<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
487<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
488<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
489<B>Field Detail</B></FONT></TH>
490</TR>
491</TABLE>
492
493<A NAME="databaseURL"><!-- --></A><H3>
494databaseURL</H3>
495<PRE>
496protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>databaseURL</B></PRE>
497<DL>
498<DD>URL of the DB for default connection handling
499<P>
500<DL>
501</DL>
502</DL>
503<HR>
504
505<A NAME="databaseUser"><!-- --></A><H3>
506databaseUser</H3>
507<PRE>
508protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>databaseUser</B></PRE>
509<DL>
510<DD>User to connect as for default connection handling
511<P>
512<DL>
513</DL>
514</DL>
515<HR>
516
517<A NAME="databasePassword"><!-- --></A><H3>
518databasePassword</H3>
519<PRE>
520protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>databasePassword</B></PRE>
521<DL>
522<DD>User to use for default connection handling
523<P>
524<DL>
525</DL>
526</DL>
527<HR>
528
529<A NAME="connection"><!-- --></A><H3>
530connection</H3>
531<PRE>
532protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/Connection.html?is-external=true" title="class or interface in java.sql">Connection</A> <B>connection</B></PRE>
533<DL>
534<DD>Connection used by default. The connection is opened the first time it
535 is needed and then held open until the appender is closed (usually at
536 garbage collection). This behavior is best modified by creating a
537 sub-class and overriding the <code>getConnection</code> and
538 <code>closeConnection</code> methods.
539<P>
540<DL>
541</DL>
542</DL>
543<HR>
544
545<A NAME="sqlStatement"><!-- --></A><H3>
546sqlStatement</H3>
547<PRE>
548protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>sqlStatement</B></PRE>
549<DL>
550<DD>Stores the string given to the pattern layout for conversion into a SQL
551 statement, eg: insert into LogTable (Thread, Class, Message) values
552 ("%t", "%c", "%m").
553
554 Be careful of quotes in your messages!
555
556 Also see PatternLayout.
557<P>
558<DL>
559</DL>
560</DL>
561<HR>
562
563<A NAME="bufferSize"><!-- --></A><H3>
564bufferSize</H3>
565<PRE>
566protected int <B>bufferSize</B></PRE>
567<DL>
568<DD>size of LoggingEvent buffer before writting to the database.
569 Default is 1.
570<P>
571<DL>
572</DL>
573</DL>
574<HR>
575
576<A NAME="buffer"><!-- --></A><H3>
577buffer</H3>
578<PRE>
579protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A> <B>buffer</B></PRE>
580<DL>
581<DD>ArrayList holding the buffer of Logging Events.
582<P>
583<DL>
584</DL>
585</DL>
586<HR>
587
588<A NAME="removes"><!-- --></A><H3>
589removes</H3>
590<PRE>
591protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A> <B>removes</B></PRE>
592<DL>
593<DD>Helper object for clearing out the buffer
594<P>
595<DL>
596</DL>
597</DL>
598
599<!-- ========= CONSTRUCTOR DETAIL ======== -->
600
601<A NAME="constructor_detail"><!-- --></A>
602<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
603<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
604<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
605<B>Constructor Detail</B></FONT></TH>
606</TR>
607</TABLE>
608
609<A NAME="JDBCAppender()"><!-- --></A><H3>
610JDBCAppender</H3>
611<PRE>
612public <B>JDBCAppender</B>()</PRE>
613<DL>
614</DL>
615
616<!-- ============ METHOD DETAIL ========== -->
617
618<A NAME="method_detail"><!-- --></A>
619<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
620<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
621<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
622<B>Method Detail</B></FONT></TH>
623</TR>
624</TABLE>
625
626<A NAME="getLocationInfo()"><!-- --></A><H3>
627getLocationInfo</H3>
628<PRE>
629public boolean <B>getLocationInfo</B>()</PRE>
630<DL>
631<DD>Gets whether the location of the logging request call
632 should be captured.
633<P>
634<DD><DL>
635</DL>
636</DD>
637<DD><DL>
638
639<DT><B>Returns:</B><DD>the current value of the <b>LocationInfo</b> option.<DT><B>Since:</B></DT>
640 <DD>1.2.16</DD>
641</DL>
642</DD>
643</DL>
644<HR>
645
646<A NAME="setLocationInfo(boolean)"><!-- --></A><H3>
647setLocationInfo</H3>
648<PRE>
649public void <B>setLocationInfo</B>(boolean flag)</PRE>
650<DL>
651<DD>The <b>LocationInfo</b> option takes a boolean value. By default, it is
652 set to false which means there will be no effort to extract the location
653 information related to the event. As a result, the event that will be
654 ultimately logged will likely to contain the wrong location information
655 (if present in the log format).
656 <p/>
657 <p/>
658 Location information extraction is comparatively very slow and should be
659 avoided unless performance is not a concern.
660 </p>
661<P>
662<DD><DL>
663</DL>
664</DD>
665<DD><DL>
666<DT><B>Parameters:</B><DD><CODE>flag</CODE> - true if location information should be extracted.<DT><B>Since:</B></DT>
667 <DD>1.2.16</DD>
668</DL>
669</DD>
670</DL>
671<HR>
672
673<A NAME="append(org.apache.log4j.spi.LoggingEvent)"><!-- --></A><H3>
674append</H3>
675<PRE>
676public void <B>append</B>(<A HREF="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</A> event)</PRE>
677<DL>
678<DD>Adds the event to the buffer. When full the buffer is flushed.
679<P>
680<DD><DL>
681<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#append(org.apache.log4j.spi.LoggingEvent)">append</A></CODE> in class <CODE><A HREF="../../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">AppenderSkeleton</A></CODE></DL>
682</DD>
683<DD><DL>
684</DL>
685</DD>
686</DL>
687<HR>
688
689<A NAME="getLogStatement(org.apache.log4j.spi.LoggingEvent)"><!-- --></A><H3>
690getLogStatement</H3>
691<PRE>
692protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getLogStatement</B>(<A HREF="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</A> event)</PRE>
693<DL>
694<DD>By default getLogStatement sends the event to the required Layout object.
695 The layout will format the given pattern into a workable SQL string.
696
697 Overriding this provides direct access to the LoggingEvent
698 when constructing the logging statement.
699<P>
700<DD><DL>
701</DL>
702</DD>
703<DD><DL>
704</DL>
705</DD>
706</DL>
707<HR>
708
709<A NAME="execute(java.lang.String)"><!-- --></A><H3>
710execute</H3>
711<PRE>
712protected void <B>execute</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> sql)
713 throws <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</A></PRE>
714<DL>
715<DD>Override this to provide an alertnate method of getting
716 connections (such as caching). One method to fix this is to open
717 connections at the start of flushBuffer() and close them at the
718 end. I use a connection pool outside of JDBCAppender which is
719 accessed in an override of this method.
720<P>
721<DD><DL>
722</DL>
723</DD>
724<DD><DL>
725
726<DT><B>Throws:</B>
727<DD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</A></CODE></DL>
728</DD>
729</DL>
730<HR>
731
732<A NAME="closeConnection(java.sql.Connection)"><!-- --></A><H3>
733closeConnection</H3>
734<PRE>
735protected void <B>closeConnection</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/Connection.html?is-external=true" title="class or interface in java.sql">Connection</A> con)</PRE>
736<DL>
737<DD>Override this to return the connection to a pool, or to clean up the
738 resource.
739
740 The default behavior holds a single connection open until the appender
741 is closed (typically when garbage collected).
742<P>
743<DD><DL>
744</DL>
745</DD>
746<DD><DL>
747</DL>
748</DD>
749</DL>
750<HR>
751
752<A NAME="getConnection()"><!-- --></A><H3>
753getConnection</H3>
754<PRE>
755protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/Connection.html?is-external=true" title="class or interface in java.sql">Connection</A> <B>getConnection</B>()
756 throws <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</A></PRE>
757<DL>
758<DD>Override this to link with your connection pooling system.
759
760 By default this creates a single connection which is held open
761 until the object is garbage collected.
762<P>
763<DD><DL>
764</DL>
765</DD>
766<DD><DL>
767
768<DT><B>Throws:</B>
769<DD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</A></CODE></DL>
770</DD>
771</DL>
772<HR>
773
774<A NAME="close()"><!-- --></A><H3>
775close</H3>
776<PRE>
777public void <B>close</B>()</PRE>
778<DL>
779<DD>Closes the appender, flushing the buffer first then closing the default
780 connection if it is open.
781<P>
782<DD><DL>
783<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/log4j/Appender.html#close()">close</A></CODE> in interface <CODE><A HREF="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</A></CODE></DL>
784</DD>
785<DD><DL>
786</DL>
787</DD>
788</DL>
789<HR>
790
791<A NAME="flushBuffer()"><!-- --></A><H3>
792flushBuffer</H3>
793<PRE>
794public void <B>flushBuffer</B>()</PRE>
795<DL>
796<DD>loops through the buffer of LoggingEvents, gets a
797 sql string from getLogStatement() and sends it to execute().
798 Errors are sent to the errorHandler.
799
800 If a statement fails the LoggingEvent stays in the buffer!
801<P>
802<DD><DL>
803</DL>
804</DD>
805<DD><DL>
806</DL>
807</DD>
808</DL>
809<HR>
810
811<A NAME="finalize()"><!-- --></A><H3>
812finalize</H3>
813<PRE>
814public void <B>finalize</B>()</PRE>
815<DL>
816<DD>closes the appender before disposal
817<P>
818<DD><DL>
819<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#finalize()">finalize</A></CODE> in class <CODE><A HREF="../../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">AppenderSkeleton</A></CODE></DL>
820</DD>
821<DD><DL>
822</DL>
823</DD>
824</DL>
825<HR>
826
827<A NAME="requiresLayout()"><!-- --></A><H3>
828requiresLayout</H3>
829<PRE>
830public boolean <B>requiresLayout</B>()</PRE>
831<DL>
832<DD>JDBCAppender requires a layout.
833<P>
834<DD><DL>
835<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/log4j/Appender.html#requiresLayout()">requiresLayout</A></CODE> in interface <CODE><A HREF="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</A></CODE></DL>
836</DD>
837<DD><DL>
838</DL>
839</DD>
840</DL>
841<HR>
842
843<A NAME="setSql(java.lang.String)"><!-- --></A><H3>
844setSql</H3>
845<PRE>
846public void <B>setSql</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> s)</PRE>
847<DL>
848<DD><DL>
849</DL>
850</DD>
851<DD><DL>
852</DL>
853</DD>
854</DL>
855<HR>
856
857<A NAME="getSql()"><!-- --></A><H3>
858getSql</H3>
859<PRE>
860public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getSql</B>()</PRE>
861<DL>
862<DD>Returns pre-formated statement eg: insert into LogTable (msg) values ("%m")
863<P>
864<DD><DL>
865</DL>
866</DD>
867<DD><DL>
868</DL>
869</DD>
870</DL>
871<HR>
872
873<A NAME="setUser(java.lang.String)"><!-- --></A><H3>
874setUser</H3>
875<PRE>
876public void <B>setUser</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> user)</PRE>
877<DL>
878<DD><DL>
879</DL>
880</DD>
881<DD><DL>
882</DL>
883</DD>
884</DL>
885<HR>
886
887<A NAME="setURL(java.lang.String)"><!-- --></A><H3>
888setURL</H3>
889<PRE>
890public void <B>setURL</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> url)</PRE>
891<DL>
892<DD><DL>
893</DL>
894</DD>
895<DD><DL>
896</DL>
897</DD>
898</DL>
899<HR>
900
901<A NAME="setPassword(java.lang.String)"><!-- --></A><H3>
902setPassword</H3>
903<PRE>
904public void <B>setPassword</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> password)</PRE>
905<DL>
906<DD><DL>
907</DL>
908</DD>
909<DD><DL>
910</DL>
911</DD>
912</DL>
913<HR>
914
915<A NAME="setBufferSize(int)"><!-- --></A><H3>
916setBufferSize</H3>
917<PRE>
918public void <B>setBufferSize</B>(int newBufferSize)</PRE>
919<DL>
920<DD><DL>
921</DL>
922</DD>
923<DD><DL>
924</DL>
925</DD>
926</DL>
927<HR>
928
929<A NAME="getUser()"><!-- --></A><H3>
930getUser</H3>
931<PRE>
932public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getUser</B>()</PRE>
933<DL>
934<DD><DL>
935</DL>
936</DD>
937<DD><DL>
938</DL>
939</DD>
940</DL>
941<HR>
942
943<A NAME="getURL()"><!-- --></A><H3>
944getURL</H3>
945<PRE>
946public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getURL</B>()</PRE>
947<DL>
948<DD><DL>
949</DL>
950</DD>
951<DD><DL>
952</DL>
953</DD>
954</DL>
955<HR>
956
957<A NAME="getPassword()"><!-- --></A><H3>
958getPassword</H3>
959<PRE>
960public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getPassword</B>()</PRE>
961<DL>
962<DD><DL>
963</DL>
964</DD>
965<DD><DL>
966</DL>
967</DD>
968</DL>
969<HR>
970
971<A NAME="getBufferSize()"><!-- --></A><H3>
972getBufferSize</H3>
973<PRE>
974public int <B>getBufferSize</B>()</PRE>
975<DL>
976<DD><DL>
977</DL>
978</DD>
979<DD><DL>
980</DL>
981</DD>
982</DL>
983<HR>
984
985<A NAME="setDriver(java.lang.String)"><!-- --></A><H3>
986setDriver</H3>
987<PRE>
988public void <B>setDriver</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> driverClass)</PRE>
989<DL>
990<DD>Ensures that the given driver class has been loaded for sql connection
991 creation.
992<P>
993<DD><DL>
994</DL>
995</DD>
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997</DL>
998</DD>
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