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ORACLE DATA SHEET ORACLE BERKELEY DB JAVA EDITION OVERVIEW Oracle Berkeley DB Java Edition is a high performance, transactional database in pure Java. Using Berkeley DB Java Edition you can persistent objects using the Java Collections API, as annotated graphs or as Key/Value pairs in a fast, local database. • Pure Java database • Fast, indexed, Btree storage • ACID transactions Oracle Berkeley DB Java Edition is an easy-to-use, scalable and efficient pure Java database. • Highly concurrent design • Runs in-memory or on disk Persistence • Zero oversight administration Berkeley DB Java Edition provides all the features of an object-to-relational • Supports Java EE JTA, JCA, mapping solution and a transactional database without the overhead. Most, if not JMX, and JConsole • Simple persistent object graph Direct Persistence Layer (DPL) annotation API • Work with large persistent datasets using the java.util.collections API all, Java applications need to store some amount of object data. Sometimes that data must be accessible by other software infrastructure. In these cases simply map the object data into SQL using an ORM such as EJB and let the relational database process and persist the information. Other times this design pattern (Java – ORM – RDBMS) is used when the advantage of an intermediary format and the analytical • Easy Key/Value API power of a query language is never realized. If you do not need the overhead of • Replication for high SQL processing, why use an Enterprise Java Beans (EJB)? Berkeley DB Java availability, fault-tolerance, fail-over, read-scalability, etc. • Scales to hundreds of gigabytes of data Edition accomplishes the goal of transactional Java object storage without translating objects into SQL thus dramatically improving your application’s performance without sacrificing any functionality. • Designed to scale up as you add cores, CPUs and even systems • Support for Android Platform and Dalvik JVM • A single JAR file (~0.5-2KB in size depending on configuration) Berkeley DB Java Edition stores and optimizes access to your Java objects, it provides concurrent transactional data storage, and data is indexed for fast retrieval just as you would expect from any database. The difference is that it does all this in a small, efficient, and easyto-manage package. Scale Out and Manage Failure Using Replication Berkeley DB provides a single-master, multireplica highly available database replication. Transactional data is delivered to all replica nodes with flexible consistency policies per transaction. In the event the master replica node fails a PAXOS-based automated fail-over election process minimizes downtime. This allows for read

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ORACLE DATA SHEET BERKELEY DB JAVA EDITION scalability, fail-over, hot-standby and other distributed configurations, giving you enterprise grade features in a small, embedded package. A SCALABLE, FAST AND Performance TRANSACTIONAL JAVA Berkeley DB Java Edition’s unique log- PERSISTENCE SOLUTION based database structure and concurrent Btree design brings performance into USE CASES: parity with that of optimized ANSI C • Caching • Application data repository solutions while remaining pure Java. • POJO persistence Berkeley DB Java Edition scales across • Queuing/Buffering multi-core and...

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