Chapter 8 Building Web Services

Reverse Engineering Web Services

You reverse engineer web services from a database to a PDM, when you want to reuse these web services in the PDM. Once reverse engineered, you can modify and generate them in the database.

You can only reverse engineer web services from Sybase ASA, ASE, and IQ.

You can reverse engineer web services from these databases into a new or an existing PDM using an ODBC data source or script file via the the Database Reverse Engineering dialog box.

For information about using the Database Reverse Engineering dialog box, see the "Reverse Engineering a Database into a PDM" chapter.

The following list shows how web service objects in these databases are treated in PowerDesigner:

• Database HTTP web services with a common local path are grouped as PowerDesigner web operations of an HTTP web service with the specified local path:

  Software	Web service name	Type	Web operation name
  Database	Customers/Name	HTML	—
  PowerDesigner	Customers	HTML	Name

• Database HTTP web services without a common local path are grouped as PowerDesigner web operations of an HTTP web service named raw, xml or html:

  Software	Web service name	Type	Web operation name
  Database	Customers	HTML	—
  PowerDesigner	html	HTML	Customers

• Database SOAP web services with a prefix name are considered as PowerDesigner web operations of a DISH web service with the prefix name:

  Software	Web service name	Type	Web operation name
  Database	DishPrefix/Name	SOAP	—
  PowerDesigner	Customers (with DishPrefix as prefix)	DISH	Name

• Database SOAP web services without a prefix name are considered as PowerDesigner web operations of a DISH web service without a prefix name:

  Software	Web service name	Type	Web operation name
  Database	Customers	SOAP	—
  PowerDesigner	WEBSERVICE_1	DISH	Customers

• Database DISH web services with or without a prefix name are considered identically in PowerDesigner:

  Software	Web service name	Type	Web operation name
  Database	Customers	DISH	—
  PowerDesigner	Customers (with or without DishPrefix as prefix)	DISH	—

Copyright (C) 2006. Sybase Inc. All rights reserved.