Package e4s.db.dict

Data Dictionary base classes.

See:
Description

Interface Summary

E4DBTable_Intf

Part of the datadictionary: interface for database table objects.

Class Summary

E4DBColumn	Part of the datadictionary: holds column information for database tables.
E4DBColumnsVec	Part of the datadictionary: Represents an vector of E4DBColumn elements.
E4DBDatabase	Part of the datadictionary: holds information of all the database tables.
E4DBDict	Part of the datadictionary: holds information of the database and types definition.
E4DBDictChangeLog	Track data dictionary changes in .xml files
E4DBDictChangeLog.E4DBChangeLogModification
E4DBGeneratedClass	Base class for generated object that holds package information.
E4DBJavaGeneratorPrintStream	Output to generate Java Source File.
E4DBReferenceVec
E4DBSelectDict	This class enables direct reading database access, based on the datadictionary definitions.
E4DBTable	Part of the datadictionary: holds database table information and functionality for modifing tables.
E4DBTreeNodeDictionary	Part of the datadictionary: internal used to display dictionary stuff as tree nodes.
E4DBType	Part of the datadictionary: information for a user defined datatype.
E4DBTypes	Part of the datadictionary: information for all user defined datatypes.
E4DBValidatorInterfaces
E4DBValidatorPackageName	Validation procedure for package names.
E4DBView	Part of the datadictionary: holds database view information.
E4DBXmlDictionaryHandler	Part of the datadictionary: internal used to read the dictionary XML meta file.

Package e4s.db.dict Description

Data Dictionary base classes. The e4s includes a data dictionary which enables to define tables in the target database but more important to generate Java source files for accessing the tables. The target database can be any JDBC compatible database. The modules collected in this package contain data dictionary functionality for storing and retrieving data dictionary meta information. Core of this classes are:

dbDict	Stands for the main datadictionary and holds informations for database objects (dbDatabase) and type declarations (dbTypes)
	dbDatabase	At the time beeing, holds only information for database tables (dbTable).
		dbTable	Holds information about a particular database table, basically consisting of dbColumn elements.
			dbColumn	Holds information about a particular column (field) definition.
	dbTypes	Holds basically a collection of dbType elements.
		dbType	Holds information about generated type declaration (e.g. e4sString, e4sLong).

See related function modules in package e4s.application.sysmodule.dict for implementation details.