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Add API to register collection converters 

Previously, the only way to add the collection converters to a registry
was to add *all* default converters. A new "addCollectionConverters"
public method is now available to only register them.

Issue: SPR-13618
This commit is contained in:
Stephane Nicoll 2015-10-28 15:54:52 +01:00
parent 91b3caf238
commit 0579e61a65
1 changed files with 35 additions and 27 deletions
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62
spring-core/src/main/java/org/springframework/core/convert/support/DefaultConversionService.java
View File

@ -88,6 +88,41 @@ public class DefaultConversionService extends GenericConversionService {
}
}
/**
* Add collection converters.
* @param converterRegistry the registry of converters to add to (must also be castable to ConversionService,
* e.g. being a {@link ConfigurableConversionService})
* @throws ClassCastException if the given ConverterRegistry could not be cast to a ConversionService
* @since 4.2.3
*/
public static void addCollectionConverters(ConverterRegistry converterRegistry) {
ConversionService conversionService = (ConversionService) converterRegistry;
converterRegistry.addConverter(new ArrayToCollectionConverter(conversionService));
converterRegistry.addConverter(new CollectionToArrayConverter(conversionService));
converterRegistry.addConverter(new ArrayToArrayConverter(conversionService));
converterRegistry.addConverter(new CollectionToCollectionConverter(conversionService));
converterRegistry.addConverter(new MapToMapConverter(conversionService));
converterRegistry.addConverter(new ArrayToStringConverter(conversionService));
converterRegistry.addConverter(new StringToArrayConverter(conversionService));
converterRegistry.addConverter(new ArrayToObjectConverter(conversionService));
converterRegistry.addConverter(new ObjectToArrayConverter(conversionService));
converterRegistry.addConverter(new CollectionToStringConverter(conversionService));
converterRegistry.addConverter(new StringToCollectionConverter(conversionService));
converterRegistry.addConverter(new CollectionToObjectConverter(conversionService));
converterRegistry.addConverter(new ObjectToCollectionConverter(conversionService));
if (streamAvailable) {
converterRegistry.addConverter(new StreamConverter(conversionService));
}
}
// internal helpers
private static void addScalarConverters(ConverterRegistry converterRegistry) {
@ -125,33 +160,6 @@ public class DefaultConversionService extends GenericConversionService {
converterRegistry.addConverter(UUID.class, String.class, new ObjectToStringConverter());
}
private static void addCollectionConverters(ConverterRegistry converterRegistry) {
ConversionService conversionService = (ConversionService) converterRegistry;
converterRegistry.addConverter(new ArrayToCollectionConverter(conversionService));
converterRegistry.addConverter(new CollectionToArrayConverter(conversionService));
converterRegistry.addConverter(new ArrayToArrayConverter(conversionService));
converterRegistry.addConverter(new CollectionToCollectionConverter(conversionService));
converterRegistry.addConverter(new MapToMapConverter(conversionService));
converterRegistry.addConverter(new ArrayToStringConverter(conversionService));
converterRegistry.addConverter(new StringToArrayConverter(conversionService));
converterRegistry.addConverter(new ArrayToObjectConverter(conversionService));
converterRegistry.addConverter(new ObjectToArrayConverter(conversionService));
converterRegistry.addConverter(new CollectionToStringConverter(conversionService));
converterRegistry.addConverter(new StringToCollectionConverter(conversionService));
converterRegistry.addConverter(new CollectionToObjectConverter(conversionService));
converterRegistry.addConverter(new ObjectToCollectionConverter(conversionService));
if (streamAvailable) {
converterRegistry.addConverter(new StreamConverter(conversionService));
}
}
/**
* Inner class to avoid a hard-coded dependency on Java 8's {@code java.time} package.