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hibernate-orm
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HHH-14305 Memory optimisations for EntityMetamodel

This commit is contained in:
Sanne Grinovero 2020-11-01 21:53:35 +00:00
parent fe5ba822e7
commit 7aca99f30d
1 changed files with 12 additions and 7 deletions
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19
hibernate-core/src/main/java/org/hibernate/tuple/entity/EntityMetamodel.java
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@ -30,6 +30,7 @@ import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.internal.CoreMessageLogger;
import org.hibernate.internal.util.ReflectHelper;
import org.hibernate.internal.util.collections.ArrayHelper;
import org.hibernate.internal.util.collections.CollectionHelper;
import org.hibernate.mapping.Component;
import org.hibernate.mapping.PersistentClass;
import org.hibernate.mapping.Property;
@ -118,8 +119,8 @@ public class EntityMetamodel implements Serializable {
private final boolean explicitPolymorphism;
private final boolean inherited;
private final boolean hasSubclasses;
private final Set subclassEntityNames = new HashSet();
private final Map entityNameByInheritenceClassMap = new HashMap();
private final Set subclassEntityNames;
private final Map<Class,String> entityNameByInheritenceClassMap;
private final EntityMode entityMode;
private final EntityTuplizer entityTuplizer;
@ -397,19 +398,23 @@ public class EntityMetamodel implements Serializable {
hasMutableProperties = foundMutable;
iter = persistentClass.getSubclassIterator();
final Set<String> subclassEntityNamesLocal = new HashSet<>();
while ( iter.hasNext() ) {
subclassEntityNames.add( ( (PersistentClass) iter.next() ).getEntityName() );
subclassEntityNamesLocal.add( ( (PersistentClass) iter.next() ).getEntityName() );
}
subclassEntityNames.add( name );
subclassEntityNamesLocal.add( name );
subclassEntityNames = CollectionHelper.toSmallSet( subclassEntityNamesLocal );
HashMap<Class, String> entityNameByInheritenceClassMapLocal = new HashMap<Class, String>();
if ( persistentClass.hasPojoRepresentation() ) {
entityNameByInheritenceClassMap.put( persistentClass.getMappedClass(), persistentClass.getEntityName() );
entityNameByInheritenceClassMapLocal.put( persistentClass.getMappedClass(), persistentClass.getEntityName() );
iter = persistentClass.getSubclassIterator();
while ( iter.hasNext() ) {
final PersistentClass pc = ( PersistentClass ) iter.next();
entityNameByInheritenceClassMap.put( pc.getMappedClass(), pc.getEntityName() );
entityNameByInheritenceClassMapLocal.put( pc.getMappedClass(), pc.getEntityName() );
}
}
entityNameByInheritenceClassMap = CollectionHelper.toSmallMap( entityNameByInheritenceClassMapLocal );
entityMode = persistentClass.hasPojoRepresentation() ? EntityMode.POJO : EntityMode.MAP;
final EntityTuplizerFactory entityTuplizerFactory = sessionFactoryOptions.getEntityTuplizerFactory();
@ -963,7 +968,7 @@ public class EntityMetamodel implements Serializable {
* @return The mapped entity-name, or null if no such mapping was found.
*/
public String findEntityNameByEntityClass(Class inheritenceClass) {
return ( String ) entityNameByInheritenceClassMap.get( inheritenceClass );
return entityNameByInheritenceClassMap.get( inheritenceClass );
}
@Override