Package e4s.db

Database access classes.

See:
Description

Interface Summary

AEP_JDBC_Connection_Intf
E4DBConnection_Intf	Interface for database access.
E4DBFilter_Intf	Interface for the database access WHERE statement as part of UPDATE and SELECT.
E4DBFilterAnd_Intf
E4DBFilterOr_Intf
E4DBModify_Intf	Interface for database writing access classes.
E4DBSelect_Intf	Interface for database reading-access classes.
E4DBUsage_Intf	Information, about referential usage of database columns in other database tables.

Class Summary

E4DBApplObjectTemporary	This temporary application object is used, when access to data from another client is required.
E4DBColumnInfo	Column information for database table columns.
E4DBColumnName	Defines a column name for a database table.
E4DBColumnType	Datatype definition for the data dictionary classes.
E4DBConnectionDefault	This is the main class that connects the application with the database, each statement will be executed in single statement transaction (SST) mode and commit/rollback is not possible.
E4DBConnectionMonitor	Internal Use only.
E4DBConnectionMonitor.E4DBConnectionMonitorVector
E4DBConnectionTransactional	This is the main class that connects the application with the database, there is no single statement transaction defined, so you must take care of transactions using commit/rollback functionality.
E4DBFilter	Baseclass for definition for a SQL-WHERE construct.
E4DBFilterAnd	Definition for an "anded" SQL-WHERE construct.
E4DBFilterOr	Definition for an LOGICAL_CONNEX_OR SQL-WHERE construct.
E4DBFilterSimple	Smallest filter entity, holds a value and a field name.
E4DBIndexInfo	Information about a table's index.
E4DBIntegrity	Database integrity check functionality.
E4DBLogging	Logging for database SQL access.
E4DBModify	This is the base class for modifying database records (insert/update/delete) where all the generated classes by the dictionary are inheritated from.
E4DBModifyCommon	Base class for UPDATE, INSERT and DELETE SQL commands.
E4DBReference	Reference from one database table to another.
E4DBResultSetMetaData	A representation of the JDBC ResultSetMetaData.
E4DBSelect	This is the base class for selecting database records (SQL-select) where all the generated classes by the dictionary are inheritated from.
E4DBSelectDistinct	Special wrapper for distinct selection.
E4DBSelectView
E4DBSettings	System parameter definition for database functionality.
E4DBStatement	E4S implementation (wrapper) to java.sql.Statement.
E4DBTableName	Defines a database table name.
E4DBTypeUsage	Holds information about usage for a E4DBType type.
E4DBXmlImportHandler

Exception Summary

E4DBException

Database specific error handling, including information about SQL statements causing the error.

Package e4s.db Description

Database access 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.