package com.baeldung.jsonoptimization; import java.io.IOException; import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.databind.SerializerProvider; import com.fasterxml.jackson.databind.ser.std.StdSerializer; public class CustomerSlimSerializer extends StdSerializer { private static final long serialVersionUID = 1L; public CustomerSlimSerializer() { this(null); } public CustomerSlimSerializer(Class t) { super(t); } @Override public void serialize(CustomerSlim customer, JsonGenerator jsonGenerator, SerializerProvider serializer) throws IOException { jsonGenerator.writeStartArray(); jsonGenerator.writeNumber(customer.getId()); jsonGenerator.writeString(customer.getName()); jsonGenerator.writeString(customer.getAddress()); jsonGenerator.writeEndArray(); } }