org.springframework.data.convert.ValueConverterRegistry Maven / Gradle / Ivy
/*
* Copyright 2022-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https//www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.convert;
import org.springframework.data.mapping.PersistentProperty;
import org.springframework.lang.Nullable;
/**
* A registry of {@link PersistentProperty property-specific} {@link PropertyValueConverter value converters}
* to convert only specific properties/values of an object.
*
* @author Christoph Strobl
* @see PropertyValueConverter
* @since 2.7
*/
public interface ValueConverterRegistry> {
/**
* Register the {@link PropertyValueConverter} for the {@link PersistentProperty property} of the given type.
*
* @param type the target type. Must not be {@literal null}.
* @param path the property name. Must not be {@literal null}.
* @param converter the converter to register. Must not be {@literal null}.
*/
void registerConverter(Class type, String path,
PropertyValueConverter> converter);
/**
* Obtain the {@link PropertyValueConverter} registered for the given type, path combination or {@literal null}
* if none defined.
*
* @param type the target type. Must not be {@literal null}.
* @param path the property name. Must not be {@literal null}.
* @param domain-specific type.
* @param store-specific type.
* @return {@literal null} if no converter present for the given type/path combination.
*/
@Nullable
PropertyValueConverter> getConverter(Class type, String path);
/**
* Check if a converter is registered for the given type, path combination.
*
* @param type the target type. Must not be {@literal null}.
* @param path the property name. Must not be {@literal null}.
* @return {@literal false} if no converter is present for the given type/path combination.
*/
default boolean containsConverterFor(Class type, String path) {
return getConverter(type, path) != null;
}
/**
* Check if converters are registered.
*/
boolean isEmpty();
/**
* Obtain a simple {@link ValueConverterRegistry}.
*
* @param {@link PersistentProperty} type.
* @return new instance of {@link ValueConverterRegistry}.
*/
static
> ValueConverterRegistry
simple() {
return new SimplePropertyValueConverterRegistry<>();
}
}