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HHH-8878 Avoid hot allocation in PooledLoOptimizer

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Sanne Grinovero 2014-02-26 00:35:43 +00:00 committed by Brett Meyer
parent 03fa305667
commit b644b515ef
1 changed files with 3 additions and 1 deletions
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4
hibernate-core/src/main/java/org/hibernate/id/enhanced/OptimizerFactory.java
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@ -507,6 +507,7 @@ public void injectInitialValue(long initialValue) {
public static class PooledLoOptimizer extends OptimizerSupport {
private IntegralDataTypeHolder lastSourceValue; // last value read from db source
private IntegralDataTypeHolder value; // the current generator value
private IntegralDataTypeHolder upperLimitValue; // the value at which we'll hit the db again
public PooledLoOptimizer(Class returnClass, int incrementSize) {
super( returnClass, incrementSize );
@ -518,8 +519,9 @@ public PooledLoOptimizer(Class returnClass, int incrementSize) {
@Override
public synchronized Serializable generate(AccessCallback callback) {
if ( lastSourceValue == null || ! value.lt( lastSourceValue.copy().add( incrementSize ) ) ) {
if ( lastSourceValue == null || ! value.lt( upperLimitValue ) ) {
lastSourceValue = callback.getNextValue();
upperLimitValue = lastSourceValue.copy().add( incrementSize );
value = lastSourceValue.copy();
// handle cases where initial-value is less that one (hsqldb for instance).
while ( value.lt( 1 ) ) {