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Don't make deep copy of property with AttributeConverter if Java type is known to be immutable

Description

Due to HHH-10111, if a property has an AttributeConverter, it's MutabilityPlan is a MutableMutabilityPlan, which results in doing deep copies of those properties.

It would be more efficient to not do a deep copy if the property Java type is known to be immutable.

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Scott MarlowNovember 20, 2015 at 9:33 PM

Thanks Gail!

Former userNovember 20, 2015 at 8:19 PM

Fixed in master and 5.0 branches.

This jira covers the case where Hibernate "knows" that the Java type of attribute with an AttributeConverter is immutable, for example:

{{// Hibernate knows that Integer is immutable;
@Converter(converter=ValueTypeConverter.class
Integer aValue;}}

will cover the case where an application can explicitly indicate that the Java type of attribute with an AttributeConverter is immutable, for example:

{{// Hibernate has no way of knowing if ValueType is immutable
@Converter(converter=ValueTypeConverter.class
ValueType aValue;}}

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Created November 20, 2015 at 4:55 AM
Updated December 2, 2015 at 5:52 PM
Resolved November 20, 2015 at 8:19 PM