Fast Object Database for Java - with JPA/JDO support

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Step 4: Create an ObjectDB Data Set

Queries against the database are represented in BIRT as data sets. To create the data set: Open the [New Data Set] dialog box by right clicking the Data Sets node in the [Data Explorer] window and selecting New Data Set. Select the data source that was created in the previous step (e.g. ObjectDB
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Step 3: Create an ObjectDB Data Source

. The next step is using this data source to create a data set for the BIRT report. ... Connections to the database are represented in BIRT as data sources. To create an ObjectDB data source: Open the [New Data Source] dialog box by right clicking the Data Sources node in the [Data
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Database Management Settings

The configuration element specifies back end (database engine) settings ... and page size settings: The initial attribute specifies an initial size of every new database file ... may corrupt the database. The element specifies the recovery file settings: The enabled
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UPDATE SET Queries in JPA/JPQL

an alternative way for updating entity objects. Unlike SELECT queries, which are used to retrieve data from the database, UPDATE queries do not retrieve data from the database, but when executed, update ... size of all the countries by 10%: UPDATE Country SET population = population * 11 / 10 UPDATE
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General Settings and Logging

The configuration element specifies ObjectDB settings that are relevant ... data, such as query results that contain millions of objects. The element specifies temporary file settings: The path attribute specifies a directory in which the temporary files are generated
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What is the Java Data Objects (JDO)?

The Java Data Objects (JDO) is another standard for accessing persistent data in databases, using plain old Java objects (POJO) to represent the object model. Unlike Java Persistence API (JPA), which is designated to be used with relational databases, JDO is designated to be used
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Entity Management Settings

The configuration element specifies front end settings that are relevant on the client ... specifies enhancement related settings: The agent attribute (whose value is "true" or "false ... ="weak" level2="0mb" /> The element specifies settings of the two cache mechanisms
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Setting and Tuning of JPA Queries

The Query and TypedQuery interfaces define various setting and tuning methods that may affect query ... or at the level of a specific query, by overriding the default EntityManager setting: // Enable ... . JPA 2 adds support for pessimistic locking. The setLockMode method sets a lock mode
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Step 6: Set the Spring XML

-file-list> The settings above routes web requests with .html suffix to the Spring dispatcher servlet. Additional spring configuration is set in another XML file (whose name is derived from ... /"/> The settings above guides Spring to support annotations (for components
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Step 6: Set the Spring XML

The settings above routes web requests with .html suffix to the Spring dispatcher servlet. Additional spring configuration is set in another XML file ... /"/> The settings above guides Spring to support annotations (for components

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

Need Help?

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