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JaVers - object auditing and diff framework for Java
package org.javers.core.json;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonElement;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import org.javers.core.metamodel.type.ValueType;
/**
* Convenient abstract implementation of {@link JsonTypeAdapter}.
* Extend it if you need to represent your {@link ValueType} as a single String.
*
*
* For a concrete adapter implementation example see {@link org.javers.java8support.LocalDateTimeTypeAdapter}.
*
* @author bartosz walacik
*/
public abstract class BasicStringTypeAdapter extends JsonTypeAdapterTemplate {
/**
* Example serialization for LocalDateTime:
*
* public String serialize(LocalDateTime sourceValue) {
* return ISO_DATE_TIME_FORMATTER.print(sourceValue);
* }
*
* @param sourceValue not null
*/
public abstract String serialize(T sourceValue);
/**
* Example deserialization for LocalDateTime:
*
* public LocalDateTime deserialize(String serializedValue) {
* return ISO_DATE_TIME_FORMATTER.parseLocalDateTime(serializedValue);
* }
*
*
* @param serializedValue not null
*/
public abstract T deserialize(String serializedValue);
@Override
public T fromJson(JsonElement json, JsonDeserializationContext jsonDeserializationContext ) {
return deserialize(json.getAsJsonPrimitive().getAsString());
}
@Override
public JsonElement toJson(T sourceValue, JsonSerializationContext jsonSerializationContext) {
return new JsonPrimitive(serialize(sourceValue));
}
}