antville/helma
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Made generateSQLID synchronized and remember last generated ID in

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DbMapping
This commit is contained in:
hns 2001-02-21 14:31:46 +00:00
parent 06fd698c41
commit 4ca07eedc4
2 changed files with 5 additions and 2 deletions
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1
src/helma/objectmodel/DbMapping.java
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@ -44,6 +44,7 @@ public class DbMapping {
private String idgen; private String idgen;
// id generator for dbs that don't support sequences // id generator for dbs that don't support sequences
private String sqlidgen; private String sqlidgen;
public long lastID;
Schema schema = null; Schema schema = null;

6
src/helma/objectmodel/db/NodeManager.java
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@ -478,7 +478,7 @@ public final class NodeManager {
/** /**
* Generates an ID for the table by finding out the maximum current value * Generates an ID for the table by finding out the maximum current value
*/ */
public String generateSQLID (DbMapping map) throws Exception { public synchronized String generateSQLID (DbMapping map) throws Exception {
Transactor tx = (Transactor) Thread.currentThread (); Transactor tx = (Transactor) Thread.currentThread ();
// tx.timer.beginEvent ("generateID "+map); // tx.timer.beginEvent ("generateID "+map);
@ -491,7 +491,9 @@ public final class NodeManager {
qds = new QueryDataSet (con, q); qds = new QueryDataSet (con, q);
qds.fetchRecords (); qds.fetchRecords ();
long currMax = qds.getRecord (0).getValue (1).asLong (); long currMax = qds.getRecord (0).getValue (1).asLong ();
retval = Long.toString (currMax+1); currMax = Math.max (currMax+1, map.lastID+1);
map.lastID = currMax;
retval = Long.toString (currMax);
} finally { } finally {
// tx.timer.endEvent ("generateID "+map); // tx.timer.endEvent ("generateID "+map);
if (qds != null) { if (qds != null) {