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javax.persistence.LockModeType

.OPTIMISTIC_FORCE_INCREMENT. The lock mode type values LockModeType.READ and LockModeType.WRITE ... applications. The semantics of requesting locks of type LockModeType.OPTIMISTIC and LockModeType.OPTIMISTIC_FORCE_INCREMENT are the following. If transaction T1 calls for a lock of type LockModeType
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javax.persistence.metamodel.Bindable

, ListAttribute, MapAttribute, PluralAttribute, SetAttribute, SingularAttribute Instances of the type Bindable represent object or attribute types that can be bound into a Path. Since: JPA 2.0 Class getBindableJavaType() Return the Java type of the represented object. Return the Java type
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javax.jdo.listener.InstanceLifecycleEvent

(Object source, int type) Creates a new event object with the specified source and type. Creates a new event object with the specified source and type. Parameters: source - the instance that triggered the event type - the event type Since: JDO 2.0 InstanceLifecycleEvent(Object source, int type
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multiselect(selectionList)

the previously specified selection(s), if any. The type of the result of the query execution depends on the specification of the type of the criteria query object created as well as the argument ... -valued compound selection item. The semantics of this method are as follows: If the type of the criteria
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multiselect(selections)

the previously specified selection(s), if any. The type of the result of the query execution depends on the specification of the type of the criteria query object created as well as the arguments ... selection item. The semantics of this method are as follows: If the type of the criteria query
4

multiselect(selectionList)

the previously specified selection(s), if any. The type of the result of the query execution depends on the specification of the type of the criteria query object created as well as the argument ... array-valued compound selection item. The semantics of this method are as follows: If the type
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javax.persistence.criteria.FetchParent

join to the specified attribute using the given join type. Create a fetch join to the specified attribute using the given join type. Parameters: attributeName - name of the attribute for the target of the join jt - join type Returns: the resulting fetch join Throws: IllegalArgumentException
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javax.persistence.metamodel.Attribute

of a Java type. Since: JPA 2.0 ManagedType getDeclaringType() Return the managed type representing the type in which the attribute was declared. Return the managed type representing the type in which the attribute was declared. Returns: declaring type Since: JPA 2.0 Member getJavaMember() Return the java
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Step 2: Entity Class and Persistence Unit

name="GuestbookPU" transaction-type="RESOURCE_LOCAL"> com.objectdb.jpa.Provider
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ObjectDB 1.0 Manual

class is and which types are supported by JDO. Chapter 4 - JDO Metadata Shows how to define JDO metadata

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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