ERP/2.50/Developers Guide/Concepts/Utilities

Introduction

Openbravo ERP provides a set of artifacts in form of utilities classes with common usage methods. Under the package is org.openbravo.erpCommon.utility you'll find classes for operations such as: extracting messages from the database, translating a error message, Http SSL communication, messages to the user, etc.

org.openbravo.erpCommon.utility

This is a list of some common used classes (Note: It's not the complete list of this package)

• Alert: Helper class used to be able to create new instances of Alert from a Java process.
• AntExecutor: This class allows to execute ant tasks in a given build.xml file.
• ComboTableData: This class builds the queries for populating the different kind of combos in the application
• DataGrid: This class handles all the server side implementation of the AJAX data grid
• ExecuteQuery: Implements the needed methods to execute the different kinds of queries in the database.
• ExportGrid: Handles the data grid export process to different formats: csv, pdf, xls
• GenericTreeServlet: This servlet manages the AJAX requests generated by any of the GenericTree subclasses
• HttpsUtils: Helper class to handle https/ssl communication
• OBError: Class to manage the messages to the front-end, an instance of OBError class is used to display messages to the user
• TableSQLData: Generates SQL sentences on-the-fly based on the Application Dictionary definition. Mostly used in generated code (generated windows)
• Utility: Various helper methods (Note: It's not the complete list of methods in the class)
  • messageBD: Gets a message from the database based on a value (AD_Message)
  • getPreference: Gets a Preference (AD_Preference) from the current context
  • getContext: Gets the context from the user currently logged
  • translate: Translate a string to a specified language
  • translateError: Translate a database error to an specified language
• VerticalMenu: Handles the generation of the application's menu
• Zip: Helper class to compress in a zip format, files and folders

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