文档介绍：作者:sonymusic
email: sonymusic@
日期:2001-5-17 11:33:47
//文件:
/**
* Housekeeping thread. Runs in the background with low CPU overhead.
* Connections are checked for warnings and closure and are periodically
* restarted.
* This thread is a catchall for corrupted
* connections and prevents the buildup of open cursors. (Open cursors
* result when the application fails to close a Statement).
* This method acts as fault tolerance for bad connection/statement programming.
*/
public void run() {
boolean forever = true;
Statement stmt=null;
String currCatalog=null;
while(forever) {
// Make sure the log file is the one this instance opened
// If not, clean it up!
try {
BufferedReader in = new BufferedReader(new
FileReader(logFileString + "pid"));
String curr_pid = ();
if((pid)) {
//("They match = " + curr_pid);
}
else {
//("No match = " + curr_pid);
();
// Close all connections silently - they are definitely dead.
for(int i=0; i < currConnections; i++) {
try {
connPool[i].close();
}
catch (SQLException e1) {} // ignore
}
// Returning from the run() method kills the thread
return;
}
();
}
catch (IOException e1) {
("Can't read the file for pid info: " +
logFileString + "pid");
}
// Get any Warning