Package com.sleepycat.je

Foundation for creating environments, databases and transactions; provides cursor based data access.

See:
Description

Interface Summary

ForeignKeyNullifier	The interface implemented for setting foreign key references to null.
SecondaryKeyCreator	Implemented to create secondary keys for a SecondaryDatabase.

Class Summary

CheckpointConfig	Specifies the attributes of an application invoked checkpoint operation.
Cursor	A database cursor.
CursorConfig	Specify the attributes of database cursor.
Database	A database handle.
DatabaseConfig	Specify the attributes of a database.
DatabaseEntry	Encodes database key and data items as a byte array.
DatabaseStats	Statistics for a single database.
Environment	A database environment.
EnvironmentConfig	Specifies the attributes of an environment.
EnvironmentMutableConfig	Specifies the environment attributes that may be changed after the environment has been opened.
EnvironmentStats	System wide statistics for a single environment.
ForeignKeyDeleteAction	The action taken when a referenced record in the foreign key database is deleted.
JEVersion	Berkeley DB Java Edition version information.
JoinConfig	The configuration properties of a JoinCursor.
JoinCursor	A specialized join cursor for use in performing equality or natural joins on secondary indices.
LockMode	Locking modes for database operations.
LockStats	Lock statistics for a single environment.
OperationStatus	Status values from database operations.
SecondaryConfig	The configuration properties of a SecondaryDatabase extend those of a primary Database.
SecondaryCursor	A database cursor for a secondary database.
SecondaryDatabase	A secondary database handle.
StatsConfig	Specifies the attributes of a statistics retrieval operation.
Transaction	An environment transaction.
TransactionConfig	Specifies the attributes of a database environment transaction.
TransactionStats	Transaction statistics for a single environment.
VerifyConfig	Specifies the attributes of a verification operation.

Exception Summary

DatabaseException	The root of all database exceptions.
DatabaseNotFoundException	Thrown when an operation requires a database and that database does not exist.
DeadlockException	Thrown when a transaction is selected to resolve a deadlock.
LockNotGrantedException	Thrown when a lock is not granted for a transaction configured for no-wait (non-blocking) operation.
RunRecoveryException	Thrown when the database environment needs to be recovered.

Package com.sleepycat.je Description

Foundation for creating environments, databases and transactions; provides cursor based data access.

Package Specification

This package constitutes the base public API for Berkeley DB, Java Edition. The classes here are used to create database objects, and insert and retrieve data.

This package provides a key/data pair model of a database record. Databases and database cursors are the key objects used to access data. An alternative collections based API is available through com.sleepycat.collections.

The Environment class embodies the database environment and is the starting point for the application. Databases and transaction objects are created through the Environment class.

Data can be inserted and retrieved directly through the Database object, or through a Cursor obtained from the Database. A database record consist of a key/data pair, where key and data are each individually represented by a DatabaseEntry object. Classes in com.sleepycat.bind provide optional support for mapping a Java object to a DatabaseEntry.

Configuration classes are used to specify the attributes of particular operations. For example the attributes of a database environment are specified in the EnvironmentConfig class. An instance of that class is required for Environment construction. Likewise, the attributes of a database are described in DatabaseConfig, which is a parameter to the Environment.openDatabase() method.

See Also:

[Getting Started Guide]