hessian.caucho.comHessian Binary Web Service Protocol

home Resin Documentation home company docs app server Home Documentation Flash/JavaFX demo Flash/Comet demo Burlap caucho.com hessian binary web service protocol Documentation The Hessian binary web service protocol makes web services usable without requiring a large framework, and without learning yet another alphabet soup of protocols. Because it is a binary protocol, it is well-suited to sending binary data without any need to extend the protocol with attachments. Hessian Implementations/Download wiki Java Flash/Flex Python C++ .NET C# D Erlang PHP Ruby Objective C Introduction to Hessian The Service API Service Implementation Client Implementation Examples Documents Implementations Tests External Links Wireformat Project: Mule integration Dinamica Spring Framework RIFE Apache Cayenne Benchmarks Hessian Implementations/Download Caucho Technology has released this Hessian implementation under an open source license (the Apache license). Anyone may freely download, use, and redistribute the Hessian implementation. wiki A wiki topic for Hessian is available at http://wiki.caucho.com/Hessian . Java Hessian Download BINARY SOURCE TEST DATE hessian-4.0.60.jar hessian-4.0.60-src.jar 2019/02/02 hessian-4.0.51.jar (383k) hessian-4.0.51-src.jar (374k) 2017/03/29 hessian-4.0.7.jar (383k) hessian-4.0.7-src.jar (374k) 2010/05/21 hessian-4.0.6.jar (383k) hessian-4.0.6-src.jar (374k) 2010/04/01 hessian-4.0.3.jar (383k) hessian-4.0.3-src.jar (374k) 2009/11/24 hessian-4.0.1.jar (277k) hessian-4.0.1-src.jar (291k) 2009/07/29 hessian-3.2.1.jar (277k) hessian-3.2.1-src.jar (291k) 2008/10/20 hessian-3.2.0.jar (277k) hessian-3.2.0-src.jar (291k) 2008/08/08 hessian-3.1.6.jar (273k) hessian-3.1.6-src.jar (293k) hessian-test.jar (10k) 2008/05/05 hessian-3.1.5.jar (273k) hessian-3.1.5-src.jar (293k) hessian-test.jar (10k) 2008/02/27 hessian-3.0.20.jar (144k) hessian-3.0.20-src.jar (184k) hessian-test.jar (10k) 2006/08/01 Hessian4J - A third-party alternative Java implementation by Bruno Ranschaert and Roger Laenen. Exadel Flamingo features a port of Hessian Java to work on Android. Flash/Flex Hessian Download BINARY SOURCE DATE hessian-flash-4_0-snap.swc (43k) hessian-flex-4_0-snap.swc (237k) bam-flash-4_0-snap.swc (432k) hessian-flex-4_0-snap-src.jar (63k) 2009/12/21 Hessian/Flash documentation Hessian/Flex RIA example Hessian/Flex Server-push example Flash API documentation Python The Mustaine project has taken over the Python port of Hessian at http://code.google.com/p/mustaine Hessian (Caucho) Download VERSION DATE hessianlib.py (11k) 2007/09/04 C++ Aldratech's C++ implementation of Hessian is available at Sourceforge. .NET C# C# implementation of Hessian is available under the LGPL at Sourceforge by Dimitri Minich, Vitaliy Byelyenkiy and Andre Voltmann. D D implementation of Hessian is available at source.org by Radu Racariu. Erlang Ben Hood has written a Erlang implementation of Hessian , available at Sourceforge. PHP A PHP implementation of Hessian is available under the GPL at Sourceforge by Manolo Gomez. Ruby A Ruby Hessian client is available under the LGPL at Sourceforge by Pankaj Mishra. Christer Sandberg has implemented a Ruby Hessian client at http://rubyforge.org/projects/hessian . Objective C The Cocoa Cayenne project contains an Objective C implementation of Hessian HessianKit is an Objective C implementation of Hessian that targets Mac OS X 10.5 and the iPhone Introduction to Hessian Creating a Hessian service using Java has four steps: Create an Java interface as the public API Create a client using HessianProxyFactory Create the Service implementation class Configure the service in your servlet engine. The Service API A Hessian service's API is just a plain old Java interface. Hello, World API public interface BasicAPI { public String hello(); } The Hessian protocol eliminates external API descriptions like CORBA IDL files or WSDL. Documenting a Hessian service API is as simple as providing the JavaDoc. Because Hessian is language-independent, the Java interface classes are not required for non-Java languages. For external languages, the Java interfaces serve only to document the service methods. Service Implementation The service implementation can be a plain-old Java object (POJO) or can extend HessianServlet to make the servlet-engine configuration trivial. Hello, World Service public class BasicService extends HessianServlet implements BasicAPI { private String _greeting = "Hello, world"; public void setGreeting(String greeting) { _greeting = greeting; } public String hello() { return _greeting; } } The service implementation can also be a plain-old Java object (POJO), avoiding any dependency on HessianServlet. More details are at Hessian introduction and in the Hessian Service using Dependency Injection tutorial. Client Implementation Creating a client is as simple as creating an API interface: Hello, World Client String url = "http://hessian.caucho.com/test/test"; HessianProxyFactory factory = new HessianProxyFactory(); BasicAPI basic = (BasicAPI) factory.create(BasicAPI.class, url); System.out.println("hello(): " + basic.hello()); Examples Building Rich Internet Applications (RIAs) with Hessian Documents Hessian Documentation Hessian 1.0.1 spec Hessian 2.0 serialization draft Hessian 2.0 web service draft Taxonomy explaining Hessians relationship to CORBA, SOAP, RMI Implementations LANGUAGE IMPLEMENTATION AUTHOR Java hessian.jar Caucho Technology Python hessianlib.py Caucho Technology Tests Developers building Hessian libraries for different languages may use the following public services on www.caucho.com for testing and experimentation. The tests are also available in the hessian-test.jar download for experimentation. URL DESCRIPTION API http://hessian.caucho.com/test/test Basic sanity-checking tests BasicAPI External Links Wireformat Project: Mule integration The Wireformat Project , led by Ben Hood, has created a Hessian Mule Transport for the Mule ESB (Enterprise Service Bus) platform. Dinamica Technical article about integrating Hessian with our open source J2EE framework "Dinamica" dinamica-hessian.pdf The article explains how to return disconnected recordsets (a Dinamica feature) using a Hessian service. In the example, a customer record, all its orders and the detail records for every order are returned using a single recordset and a very simple hessian service. Former MTS/COM+/VB6 programmers will recognize this technique. Spring Framework The Spring Framework includes support for Hessian. The org.springframework.remoting.caucho JavaDoc provides an overview. RIFE RIFE aims to offer a viable solution for rapid web application development in Java without being troubled by the complex implications of J2EE. RIFE offers an alternative approach to web application development and design. It builds upon the Java platform, but offers all required tools and APIs to implement and perform all common website related tasks in a fast, intuitive and consistent manner. RIFE has a page describing its support for Hessian web services . Apache Cayenne Apache Cayenne is an ORM tool which supports Hessian for transport of database objects between a client and server. Benchmarks Java Remoting: Protocol Benchmarks - a benchmark by Daniel Gredler comparing Hessian and Burlap to ORMI, Java RMI, XML-RPC, and HTTPInvoker. Documentation Copyright © 1998-2015 Caucho Technology, Inc. All rights reserved. Resin ® is a registered trademark. Quercus tm , and Hessian tm are trademarks of Caucho Technology. 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