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JPA Miscellaneous

This section contains miscellaneous JPA types. The PersistenceUtil and PersistenceUnitUtil interfaces provide general utility methods: The Cache interface and the CacheRetrieveMode and CacheStoreMode enum types serve in managing the EntityManagerFactory's shared (level 2) cache: Other enum types are provided for setting of various JPA operations:
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What's next?

describing some tools and settings that are specific to ObjectDB:
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Step 5: Add a JSP Page

that have already signed (which are retrieved from the request's "guests" attribute that is set by
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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.
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Step 2: Entity Class and Persistence Unit

guests in the database. We also need to configure JPA by setting a META-INF/persistence.xml file
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Step 5: Design a BIRT Report Chart

for content assistant) and click Next. In the [Format Chart] tab you can set the chart title, background
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Step 2: Entity Class and Persistence Unit

+ ")"; } } A default JPA persistence unit (with default settings) was generated in a persistence.xml file
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Step 5: Add a JSP Page

from the request's "guests" attribute that is set by the servlet in the previous step
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Step 5: Add a JSP Page

that have already signed (which are retrieved from the request's "guests" attribute that is set by
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JDO Annotations for Fields

The way a field of a persistable class is managed by JDO can be set by the following annotations and enum types:

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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