org.dominokit.jackson.ser.VoidJsonSerializer Maven / Gradle / Ivy
/*
* Copyright 2013 Nicolas Morel
*
* 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
*
* http://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.dominokit.jackson.ser;
import org.dominokit.jackson.JsonSerializationContext;
import org.dominokit.jackson.JsonSerializer;
import org.dominokit.jackson.JsonSerializerParameters;
import org.dominokit.jackson.stream.JsonWriter;
/**
* Default {@link org.dominokit.jackson.JsonSerializer} implementation for {@link java.lang.Void}.
*/
public class VoidJsonSerializer extends JsonSerializer {
private static final VoidJsonSerializer INSTANCE = new VoidJsonSerializer();
/**
* getInstance
*
* @return an instance of {@link org.dominokit.jackson.ser.VoidJsonSerializer}
*/
public static VoidJsonSerializer getInstance() {
return INSTANCE;
}
private VoidJsonSerializer() {}
/** {@inheritDoc} */
@Override
protected void serializeNullValue(
JsonWriter writer, JsonSerializationContext ctx, JsonSerializerParameters params) {
if (writer.getSerializeNulls()) {
writer.setSerializeNulls(false);
writer.nullValue();
writer.setSerializeNulls(true);
} else {
writer.nullValue();
}
}
/** {@inheritDoc} */
@Override
public void doSerialize(
JsonWriter writer,
Void value,
JsonSerializationContext ctx,
JsonSerializerParameters params) {
// we should never be here, the null value is already handled and it's the only possible value
// for Void
}
}