Linux Application Development For The Enterprise (Charles River Media Programming)

D

Daemons, 44

Data modules, 339–340

Data validation and datasets, 332

Database applications

appending, inserting, and editing datasets, 332

client dataset, 333–334, 336–338

client dataset and in-memory table, 347–352

creating, and Kylix, 273, 277, 325–326, 340–342

data modules, 339–340

data validation, 332

DataCLX components, 304

dataset provider component, 334–336, 339

dataset states, 329–330

datasets and their characteristics, 326–329

dbExpress framework, 332–333

entity beans, 499, 500–501, 512, 532–547

establishing database connections, 340–342

JDBC (Java Data Base Connectivity, 325

ODBC (Open Data Base Connectivity), 325

opening/closing datasets, 331

SQL connections, 342–344

synchronous, asynchronous, and transaction modes, 330

two-tier, 342–347

DbExpress framework, 332–333

Declare command (bash shell), 136

__declspec keyword extension, 228–230

Delete operator

C++, 204, 206

Java alternative, 247

Delphi

application structure, 157–163

arrays, 167–168

calling conventions, 175

class constructors, 178, 184–185

class destructors, 178, 185

class inheritance, 156, 179–186

classes, 177–179

compiled units, 289

compiler directives, 159

declaration of identifiers, 163–165

Delphi Project file (.dpr), 157–158

forward directive, 175

functions and procedures, 173–176

interfaces, 186–187

pointer data types, 187–188

procedure and function data types, 176–177

procedure header/signature, 174–175

procedure keyword, 174

program control constructs, 188–193

records, 169–170

reserved words, 158

sets, 167–168

string manipulation functions, 165–166

structured data types, 167–170

unit implementation section, 161–162, 178

unit initialization section, 162

unit interface section, 161

units, 158

variant data types, 170–173

virtual class method, 182–184

depmod command, 31

Derived classes, 156

Desktop

graphical, types of, 31–32, 49–50

vs. server applications, 63–64

Destructors, class, 178, 185, 199, 206

/dev directory, 54

Devices

described, 57–59

drivers, 26

IDE, 14–16

major/minor device number, 57

Df command-line program, 48

Dialogs, CLX common, 302–304

Directories

/bin/sbin directory, 53

/boot directory, 53

current, 57

described, in Linux, 57–59

/dev directory, 54

empty, 57

hierarchy in Linux, 52–55

/home directory, 53

/lib directory, 54

/mnt subdirectories, 55

naming conventions, 14

/opt directory, 54

parent, 57

/proc directory, 55

root, 52

/tmp directory, 54

/usr directory, 54

/usr/local directory, 54

/var directory, 54–55

Disk Manager, 44–45

Disks

boot process, 15–20

formatting, 51

swap space, 51

Distributed applications. See Java

Drag and drop, implementing in Kylix, 322–325

Dual boot systems, 19–20

dump command, 56

Dynamic arrays, Object Pascal, 168

Dynamic_cast operator, C++, 218–222