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getOptimistic()

Method javax.jdo.Transaction boolean getOptimistic() Optimistic transactions do not hold data store locks until commit time. Returns: the value of the Optimistic property. Since: JDO 1.0
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getNontransactionalWrite()

Method javax.jdo.Transaction boolean getNontransactionalWrite() If true, allows persistent instances to be written without a transaction active. Returns: the value of the nontransactionalWrite property Since: JDO 1.0
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getNontransactionalRead()

Method javax.jdo.Transaction boolean getNontransactionalRead() If true, allows persistent instances to be read without a transaction active. Returns: the value of the nontransactionalRead property Since: JDO 1.0
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[ODB1] Chapter 6 - Persistent Objects

(...) method. When a transient object becomes persistent during an active transaction, its content is automatically stored in the database when the transaction is committed (unless it is being deleted before commit). An attempt to call makePersistent(...) when there is no active transaction throws
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Constants.PROPERTY_TRANSACTION_ISOLATION_LEVEL_SNAPSHOT

Static Field javax.jdo.Constants String PROPERTY_TRANSACTION_ISOLATION_LEVEL_SNAPSHOT "javax.jdo.option.TransactionIsolationLevel.snapshot" Since: JDO 2.2 See Also: PersistenceManagerFactory.supportedOptions()
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Constants.PROPERTY_TRANSACTION_ISOLATION_LEVEL_SERIALIZABLE

Static Field javax.jdo.Constants String PROPERTY_TRANSACTION_ISOLATION_LEVEL_SERIALIZABLE "javax.jdo.option.TransactionIsolationLevel.serializable" Since: JDO 2.2 See Also: PersistenceManagerFactory.supportedOptions()
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Constants.PROPERTY_TRANSACTION_ISOLATION_LEVEL_REPEATABLE_READ

Static Field javax.jdo.Constants String PROPERTY_TRANSACTION_ISOLATION_LEVEL_REPEATABLE_READ "javax.jdo.option.TransactionIsolationLevel.repeatable-read" Since: JDO 2.2 See Also: PersistenceManagerFactory.supportedOptions()
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Constants.PROPERTY_TRANSACTION_ISOLATION_LEVEL_READ_UNCOMMITTED

Static Field javax.jdo.Constants String PROPERTY_TRANSACTION_ISOLATION_LEVEL_READ_UNCOMMITTED "javax.jdo.option.TransactionIsolationLevel.read-uncommitted" Since: JDO 2.2 See Also: PersistenceManagerFactory.supportedOptions()
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Constants.OPTION_TRANSACTIONAL_TRANSIENT

Static Field javax.jdo.Constants String OPTION_TRANSACTIONAL_TRANSIENT "javax.jdo.option.TransientTransactional" Since: JDO 2.1 See Also: PersistenceManagerFactory.supportedOptions()
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PersistenceModifier.TRANSACTIONAL

Enum Constant javax.jdo.annotations.PersistenceModifier TRANSACTIONAL Since: JDO 2.1

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.

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