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Introduce CustomConversions.getRequiredValueConverter(…).

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Provide convenience method to simplify flow in calling code.

See #3170
This commit is contained in:
Mark Paluch
2025-03-12 13:55:53 +01:00
parent 5b96fb480d
commit 65257d983b
1 changed files with 29 additions and 2 deletions
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31
src/main/java/org/springframework/data/convert/CustomConversions.java
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@@ -185,9 +185,36 @@ public class CustomConversions {
*/
public boolean hasValueConverter(PersistentProperty<?> property) {
PropertyValueConversions propertyValueConversions = getPropertyValueConversions();
PropertyValueConversions pvc = getPropertyValueConversions();
return propertyValueConversions != null && propertyValueConversions.hasValueConverter(property);
return pvc != null && pvc.hasValueConverter(property);
}
/**
* Returns the required {@link PropertyValueConverter} for the given {@link PersistentProperty} or throws
* {@link IllegalStateException} if no converter is available. This is a convenience method for
* {@code getPropertyValueConversions().getValueConverter(…)} enforcing non-null constraints.
* <p>
* Prior to calling this method you should verify a converter is available using
* {@link #hasValueConverter(PersistentProperty)}.
*
* @param property {@link PersistentProperty} to evaluate; must not be {@literal null}.
* @return the required {@link PropertyValueConverter}
* @throws IllegalStateException if no converter is available.
* @since 4.0
* @see #hasValueConverter(PersistentProperty)
*/
public <DV, SV, P extends PersistentProperty<P>, VCC extends ValueConversionContext<P>> PropertyValueConverter<DV, SV, VCC> getRequiredValueConverter(
P property) {
PropertyValueConversions pvc = getPropertyValueConversions();
PropertyValueConverter<DV, SV, VCC> converter = pvc != null ? pvc.getValueConverter(property) : null;
if (converter == null) {
throw new IllegalStateException("No value converter registered for property %s".formatted(property.getName()));
}
return converter;
}
/**