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HHH-14305 Memory optimisations for AbstractEntityPersister#uniqueKeyLoaders

This commit is contained in:
Sanne Grinovero 2020-10-29 17:35:17 +00:00
parent d6108fa1e4
commit bc0f3d94fe
1 changed files with 7 additions and 3 deletions
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10
hibernate-core/src/main/java/org/hibernate/persister/entity/AbstractEntityPersister.java
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@ -250,12 +250,12 @@ public abstract class AbstractEntityPersister
private volatile Set<String> affectingFetchProfileNames;
private final Map uniqueKeyLoaders = new HashMap();
private final LockModeEnumMap<LockingStrategy> lockers = new LockModeEnumMap<>();
private final EntityLoaderLazyCollection loaders = new EntityLoaderLazyCollection();
private volatile Map<String,EntityLoader> uniqueKeyLoaders;
// SQL strings
private String sqlVersionSelectString;
private String sqlSnapshotSelectString;
@ -2433,7 +2433,8 @@ public abstract class AbstractEntityPersister
&& propertyName.indexOf( '.' ) < 0; //ugly little workaround for fact that createUniqueKeyLoaders() does not handle component properties
if ( useStaticLoader ) {
return (EntityLoader) uniqueKeyLoaders.get( propertyName );
final Map<String, EntityLoader> uniqueKeyLoaders = this.uniqueKeyLoaders;
return uniqueKeyLoaders == null ? null : uniqueKeyLoaders.get( propertyName );
}
else {
return createUniqueKeyLoader(
@ -2453,6 +2454,9 @@ public abstract class AbstractEntityPersister
String[] propertyNames = getPropertyNames();
for ( int i = 0; i < entityMetamodel.getPropertySpan(); i++ ) {
if ( propertyUniqueness[i] ) {
if ( uniqueKeyLoaders == null ) {
this.uniqueKeyLoaders = new HashMap<>();
}
//don't need filters for the static loaders
uniqueKeyLoaders.put(
propertyNames[i],