Delphi Client / Server Suite 2.0
Client/Server Database Architecture (cont.)
Delphi Client / Server Suite 2.0 provides over 15 database
visualization controls so that applications can take on an appealing
and functional design. These controls are easy to use and because
they are object oriented, completely extensible and customizable.
Database controls such as Edits, Memos, and Database Grids can
perform sophisticated Client / Server operations without
requiring code. In addition, all database controls will take
on the extended field attributes defined in the Scaleable Database
Dictionary so that consistent user interface and data validation
can be applied across applications.
Delphi Client / Server Suite 2.0 has over 15 Database
GUI Controls
New to Delphi Client / Server Suite 2.0 are the Multi-Object Grid,
an enhanced DataGrid with codeless lookup functionality, and enhanced
database list and combo boxes. These controls offer the flexibility
to convey information to the user in a way that corresponds to
the business need and application requirements.
The multi-object grid allows the developer to place other database
controls into a single row of this grid. CheckBoxes, Edits and
so forth can be stacked or visually placed where you like, and
with full replication. The flexibility and simplicity of conveying
information in this way adds to the presentation of information
and productivity of users.
Delphi Client / Server Suite 2.0's new Multi-Object
Grid allows the developer to design a custom window of information
Applications like Executive Information Systems and Decision Support
Systems require consistent data for accurate reporting of daily
operations. The new DataGrid in Delphi Client / Server Suite
2.0 allows for codeless lookups between tables which ensures data
validation and consistency. Drop down lists can now be used to
supply information from one table to store in another. The developer
can now create a data entry model that provides for consistent
data entry.
Delphi Client / Server Suite 2.0's new codeless lookups
in the enhanced datagrid.
The DataGrid has also been enhanced to be independent of the Dataset.
This provides the flexibility to use different grids to look
at the same table, query or stored procedure in different ways.
The developer can apply column attributes such as position, fonts,
colors, headers, width, etc. to highlight important information
and to convey different messages about the data.
The DataListBox and the DataComboBox seamlessly link information
between multiple Datasources whether they be queries, stored procedures
or tables. Developers can now codelessly order pick lists so
that users can find data more easily and enhance their productivity.
Client / Server applications rely on normalized, validated
and coherent data so that important business decisions can be
made accurately.
ReportSmith turns data into information that assists in making
every day business decisions. ReportSmith can directly access
the Delphi Datasets offering easy integration. This allows client/server
developers to create complex database reports against extremely
large quantities of data. ReportSmith supports columnar, crosstab,
form, or mailing label reports, offering the flexibility to view
data typically found in executive information systems and decision
support systems.
One language can control all aspects of Client / Server
applications reducing the learning curve of your developers.
By sharing the Delphi data connection from within ReportSmith,
developers are able to control the content, sort order, and grouping
of a report with code.
ReportSmith offers high volume Client / Server
reporting
Delphi Client / Server Suite 2.0 also includes QuickReport, an
integrated set of Delphi components that rapidly creates columnar,
masterdetail, and label reports. While Report Smith is
optimized for large volumes of data that are typically found in
corporate client/server applications, QuickReport is optimized
for smaller volumes of data and simpler reporting styles.
QuickReport integrates data reporting into Delphi Client
/ Server Suite 2.0 applications.
QuickReport is comprised of eleven components that intuitively
allow the developer to create report bands, attach to Delphi datasets,
and then finally lay out report fields. Printing, Previewing,
and Page Orientation are invoked with simple object methods making
it easy to incorporate reports into your client / server applications.
QuickReport also makes it possible to preview reports in your
application so that you can see the information as it would appear
on paper. This allows you to look at the information in new ways.
The Database Component Architecture in Delphi Client / Server
Suite 2.0 is an object oriented implementation of the Borland
Database Engine. Each object has a modular and tight component
API that manages a single aspect of Client / Server
database applications. In comparison to a single object/window
that manages all aspects of the application, Delphi's componentization
offers a degree of isolation between the database and the GUI
with the benefits of a shorter learning curve and easier maintenance.
Delphi's Component Architecture eases code maintenance.
- Session and Database components maintain information to manage
transactions and changes to the database server for each connection.
- Datasets (e.g. query, stored procedure and table) allow the
developer to control the communication between Delphi and the
Borland Database Engine by providing over 15 events with which
to interact.
- Datasources manage the interaction of the data record with
all the GUI data controls.
- Over 15 data visualization (GUI) controls manage the presentation
of data.
This discrete object model provides control of database operations.
The programmer can apply scope to business rules and manage every
aspect of the Client / Server application. Business
rules can be applied at the GUI, the Data Record, the Table, the
Database, the Database Server or any combination of the above
to provide the most modular and flexible application.
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