001package org.hl7.fhir.r4.formats; 002 003/*- 004 * #%L 005 * org.hl7.fhir.r4 006 * %% 007 * Copyright (C) 2014 - 2019 Health Level 7 008 * %% 009 * Licensed under the Apache License, Version 2.0 (the "License"); 010 * you may not use this file except in compliance with the License. 011 * You may obtain a copy of the License at 012 * 013 * http://www.apache.org/licenses/LICENSE-2.0 014 * 015 * Unless required by applicable law or agreed to in writing, software 016 * distributed under the License is distributed on an "AS IS" BASIS, 017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 018 * See the License for the specific language governing permissions and 019 * limitations under the License. 020 * #L% 021 */ 022 023 024import java.io.IOException; 025import java.math.BigDecimal; 026 027/** 028 * Facade to GSON writer, or something that imposes property ordering first 029 * 030 * @author Grahame 031 * 032 */ 033public interface JsonCreator { 034 035 void setIndent(String string); 036 037 void beginObject() throws IOException; 038 039 void endObject() throws IOException; 040 041 void nullValue() throws IOException; 042 043 void name(String name) throws IOException; 044 045 void value(String value) throws IOException; 046 047 void value(Boolean value) throws IOException; 048 049 void value(BigDecimal value) throws IOException; 050 void valueNum(String value) throws IOException; // allow full control of representation 051 052 void value(Integer value) throws IOException; 053 054 void beginArray() throws IOException; 055 056 void endArray() throws IOException; 057 058 void finish() throws IOException; 059 060 // only used by an creator that actually produces xhtml 061 void link(String href); 062}