Java Data Objects (JDO) - Specifications

JDO Final Specifications

+ @import url("./style/maven-theme.css");

JDO Final Specifications

The following specifications for JDO are available

The JDO 2.0 Specification (Final)

Java Data Objects (JDO) - JDO State Transitions

JDO State Transition

+ @import url("./style/maven-theme.css");

JDO State Transition

JDO manages the lifecycle of an object, from creation (Transient) through to persistence in the datastore (Hollow, Persistent Clean) and all of the various states between these. The transition between these states are achieved by using methods on the Persistence Manager such as makePersistent(), makeTransient(), deletePersistent(), and by commiting the changes made by these operations, or by rolling them back.

The various lifecycle states supported by JDO are shown below. Modified: db/jdo/site/docs/style/maven-base.css URL: http://svn.apache.org/viewvc/db/jdo/site/docs/style/maven-base.css?rev=592579&r1=592578&r2=592579&view=diff ============================================================================== --- db/jdo/site/docs/style/maven-base.css (original) +++ db/jdo/site/docs/style/maven-base.css Tue Nov 6 15:08:15 2007 @@ -32,20 +32,21 @@ } #organizationLogo img, #projectLogo img, #projectLogo span{ margin: 8px; + padding: 4px 10px 4px 30px; } #projectLogo span{ border: 1px solid; - padding: 4px 10px 4px 10px; + padding: 4px 10px 4px 30px; background-color: #eee; cursor: pointer; } -.xleft, #organizationLogo img{ - padding: 10px 10px 10px 0px; - float:none; +.xleft { + float:right; + padding: 10px 10px 10px 10px; } -.xright, #projectLogo img, #projectLogo span{ - float:none; - padding: 4px 20px 4px 40px; +.xright { + float:left; + padding: 10px 10px 10px 10px; text-shadow: #7CFC00; } #banner { Modified: db/jdo/site/docs/svn.html URL: http://svn.apache.org/viewvc/db/jdo/site/docs/svn.html?rev=592579&r1=592578&r2=592579&view=diff ============================================================================== --- db/jdo/site/docs/svn.html (original) +++ db/jdo/site/docs/svn.html Tue Nov 6 15:08:15 2007 @@ -1,7 +1,7 @@ Java Data Objects (JDO) - Source Code

Source Code Version Control

Apache JDO uses Subversion to manage its source code. + @import url("./style/maven-theme.css");

Source Code Version Control

Apache JDO uses Subversion to manage its source code. If you're new to Subversion, you can check out the online book about Subversion. Note that we are currently using Subversion 1.1.x (there are separate Modified: db/jdo/site/docs/tck.html URL: http://svn.apache.org/viewvc/db/jdo/site/docs/tck.html?rev=592579&r1=592578&r2=592579&view=diff ============================================================================== --- db/jdo/site/docs/tck.html (original) +++ db/jdo/site/docs/tck.html Tue Nov 6 15:08:15 2007 @@ -1,7 +1,7 @@ Java Data Objects (JDO) - TCK

About the Technology Compatibility Kit

+ @import url("./style/maven-theme.css");

About the Technology Compatibility Kit

In order to demonstrate compliance with the Java Data Objects specification, an implementation must pass all of the tests in the Technology Compatibility Kit (TCK). Modified: db/jdo/site/docs/team-list.html URL: http://svn.apache.org/viewvc/db/jdo/site/docs/team-list.html?rev=592579&r1=592578&r2=592579&view=diff ============================================================================== --- db/jdo/site/docs/team-list.html (original) +++ db/jdo/site/docs/team-list.html Tue Nov 6 15:08:15 2007 @@ -1,7 +1,7 @@ Java Data Objects (JDO) - Project Team

General

JDO Implementation

JDO Usage

Community

Development
RoadMap / TODO
Source Code
Coding Standards
Issue Tracking
Dependencies

The Apache JDO Team
+ @import url("./style/maven-theme.css");
General
Home
Why JDO?
JDO v JPA
JDO v JPA : API
JDO v JPA : ORM
Downloads
License

JDO Implementation
Specifications
TCK

JDO Usage
Implementations
API Javadoc
Types of Classes
Types of Fields
MetaDat a
Bytecode Enhancement
JDOHelper
PersistenceManagerFactory
PersistenceManager
Transactions
Object States
Object Retrieval
Extents
Guides
References
Exceptions
Glossary

Community
Get Involved
Project Team
Mailing Lists
FAQ
Wiki

Development
RoadMap / TODO
Source Code
Coding Standards
Issue Tracking
Dependencies

The Apache JDO Team
The people listed below have made significant contributions to JDO by working long and hard to make quality software for the rest of the world to use. Modified: db/jdo/site/docs/transactions.html URL: http://svn.apache.org/viewvc/db/jdo/site/docs/transactions.html?rev=592579&r1=592578&r2=592579&view=diff ============================================================================== --- db/jdo/site/docs/transactions.html (original) +++ db/jdo/site/docs/transactions.html Tue Nov 6 15:08:15 2007 @@ -1,7 +1,7 @@ Java Data Objects (JDO) - Transactions
General
Home
Why JDO?
JDO v JPA
JDO v JPA : API
JDO v JPA : ORM
Downloads
License

JDO Implementation
Specifications
TCK

JDO Usage
Implementations
API Javadoc
Types of Classes
Types of Fields
MetaData
Bytecode Enhancement
JDOHelper
PersistenceManagerFactory
PersistenceManager
Transactions
Object States
Object Retrieval
Extents
Guides
References
Exceptions
Glossary

Community
Get Involved
Project Team
Mailing Lists
FAQ
Wiki

Development
RoadMap / TODO
Source Code
Coding Standards
Issue Tracking
Dependencies

Transactions
+ @import url("./style/maven-theme.css");
General
Home
Why JDO?
JDO v JPA
JDO v JPA : API
JDO v JPA : ORM
Downloads
License

JDO Implementation
Specifications
TCK

JDO Usage
Implementations
API Javadoc
Types of Classes
Types of Fields
MetaData
Bytecode Enhancement
JDOHelper
PersistenceManagerFactory
PersistenceManager
Transactions
Object States
Object Retrieval
Extents
Guides
References
Exceptions
Glossary

Community
Get Involved
Project Team
Mailing Lists
FAQ
Wiki

Development
RoadMap / TODO
Source Code
Coding Standards
Issue Tracking
Dependencies

Transactions
When managing the persistence of objects using a PersistenceManager it is normal to handle all datastore operations in a transaction. For this reason each PersistenceManager has its own transaction. Consequently a typical JDO persistence method Modified: db/jdo/site/docs/why_jdo.html URL: http://svn.apache.org/viewvc/db/jdo/site/docs/why_jdo.html?rev=592579&r1=592578&r2=592579&view=diff ============================================================================== --- db/jdo/site/docs/why_jdo.html (original) +++ db/jdo/site/docs/why_jdo.html Tue Nov 6 15:08:15 2007 @@ -1,7 +1,7 @@ Java Data Objects (JDO) - Why JDO ?
General
Home
Why JDO?
JDO v JPA
JDO v JPA : API
JDO v JPA : ORM
Downloads
License

JDO Implementation
Specifications
TCK

JDO Usage
Implementations
API Javadoc
Types of Classes
Types of Fields
MetaData
Bytecode Enhancement
JDOHelper
PersistenceManagerFactory
PersistenceManager
Transactions
Object States
Object Retrieval
Extents
Guides
References
Exceptions
Glossary

Community
Get Involved
Project Team
Mailing Lists
FAQ
Wiki

Development
RoadMap / TODO
Source Code
Coding Standards
Issue Tracking
Dependencies

Why JDO ?
+ @import url("./style/maven-theme.css");
General
Home
Why JDO?
JDO v JPA
JDO v JPA : API
JDO v JPA : ORM
Downloads
License

JDO Implementation
Specifications
TCK

JDO Usage
Implementations
API Javadoc
Types of Classes
Types of Fields
MetaData
Bytecode Enhancement
JDOHelper
PersistenceManagerFactory
PersistenceManager
Transactions
Object States
Object Retrieval
Extents
Guides
References
Exceptions
Glossary

Community
Get Involved
Project Team
Mailing Lists
FAQ
Wiki

Development
RoadMap / TODO
Source Code
Coding Standards
Issue Tracking
Dependencies

Why JDO ?
The majority of applications need to persist (or store) data during their lifecycle. There are many ways of doing this with an application written in Java.
Modified: db/jdo/site/xdocs/site.jsl URL: http://svn.apache.org/viewvc/db/jdo/site/xdocs/site.jsl?rev=592579&r1=592578&r2=592579&view=diff ============================================================================== --- db/jdo/site/xdocs/site.jsl (original) +++ db/jdo/site/xdocs/site.jsl Tue Nov 6 15:08:15 2007 @@ -117,8 +117,8 @@ - - + + Modified: db/jdo/site/xdocs/style/maven-base.css URL: http://svn.apache.org/viewvc/db/jdo/site/xdocs/style/maven-base.css?rev=592579&r1=592578&r2=592579&view=diff ============================================================================== --- db/jdo/site/xdocs/style/maven-base.css (original) +++ db/jdo/site/xdocs/style/maven-base.css Tue Nov 6 15:08:15 2007 @@ -32,20 +32,21 @@ } #organizationLogo img, #projectLogo img, #projectLogo span{ margin: 8px; + padding: 4px 10px 4px 30px; } #projectLogo span{ border: 1px solid; - padding: 4px 10px 4px 10px; + padding: 4px 10px 4px 30px; background-color: #eee; cursor: pointer; } -.xleft, #organizationLogo img{ - padding: 10px 10px 10px 0px; - float:none; +.xleft { + float:right; + padding: 10px 10px 10px 10px; } -.xright, #projectLogo img, #projectLogo span{ - float:none; - padding: 4px 20px 4px 40px; +.xright { + float:left; + padding: 10px 10px 10px 10px; text-shadow: #7CFC00; } #banner {