Java tutorial
/* * Copyright 2016 CloudBans (https://cloudbans.xyz) * * 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 xyz.cloudbans.entities.jackson.serializer; import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.databind.JsonSerializer; import com.fasterxml.jackson.databind.SerializerProvider; import xyz.cloudbans.entities.data.Server; import java.io.IOException; import java.util.Collection; public class ServerIdsSerializer extends JsonSerializer<Collection<Server>> { @Override public void serialize(Collection<Server> servers, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException { jsonGenerator.writeStartArray(); for (Server server : servers) jsonGenerator.writeString(server.getId().toString()); jsonGenerator.writeEndArray(); } }