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• com.jcorporate.expresso.services.controller.dbmaint: Javadoc index of package com.jcorporate.expresso.services.controller.dbmaint.


Package Samples:

• com.jcorporate.expresso.services.controller.dbmaint: This package contains Controller objects to perform basic administration functions within Expresso, including security maintenance, testing, and default error handling.  

Classes:

• Add: Displays a form for a new DBObject record. This state does not actually perform the adding of the dbobject to the database, instead it creates a blank form that is pre-populated with the default values of the given DBObject. The actual class that does the updating is AddUpdate
• ViewBlob: This state allows for viewing of BLOB data types. It supports standard blob types by sending a mime type of application/x-unknown, and is supports MediaDbObjects be setting MIME type, file name, and size to that of the file that was originally uploaded to the database table.
• SearchList: Processes the data passed via a standard form from SEARCH. This class requires a match on all specified fields of a DBObject for a successful outcome. SEARCHsearch can be extended to enabling a more restrictive search on only one or two fields e.g. a foreign key field
• DynamicCmd: Base class for all command classes. This class provides the execute() method which all subclasses need to override. IT does some basic functionality that all the DBMaint states need, such as load the given DBObject as specified.
• Search: allows the user to search for a record. This class requires a match on all supplied fields of a DBObject. Search can be extended to allow a search on one or more fields e.g. a foreign key field
• UpdateBase: Base Class for posting add, delete and updating operations. This functionality was previously carried out in the DBMaint.doPost(). Now extended by ADDsave, UPDATEsave and UPDATEdelete method.
• Update: Provides a standard form for user to update all fields (except primary key). Extend this class if only updating one or several but not all fields.
• UpdateDelete: Lets user delete a record. Processes the data passed via standard form by UPDATE, after the user has pressed the delete button.
• UpdateUpdate: Lets user update a record. Processes the data passed via standard form by UPDATE after the user has pressed the save button
• AddUpdate: Processes date entered via standard form presented by Add. Adds a record to a table and requires all fields to be present
• GetBase: Base class for search/add & update operations that were previously carried out in DBMaint.doGet().
• ListBase: Base class for the DBMaint commands that display lists of records, such as Search and List.
• List: list all records in a DBObject.
• Lookup

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