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join(set)

Method javax.persistence.criteria.From SetJoin<X,Y> join( SetAttribute<?,Y> set ) Create an inner join to the specified Set-valued attribute. Parameters: set - target of the join Returns: the resulting join Since: JPA 2.0
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join(set, jt)

Method javax.persistence.criteria.From SetJoin<X,Y> join( SetAttribute<?,Y> set, JoinType jt ) Create a join to the specified Set-valued attribute using the given join type. Parameters: set - target of the join jt - join type Returns: the resulting join Since: JPA 2.0
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PluralAttribute.CollectionType.SET

Enum Constant javax.persistence.metamodel.PluralAttribute.CollectionType SET Set-valued attribute Since: JPA 2.0
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JPA Persistable Types

The term persistable types refers to data types that can be used for storing data in the database ... , Mapped superclasses, Embeddable classes. Simple Java data types: Primitive types, Wrappers, String ... persistent fields would cause data duplication in the database. Entity Classes An entity class
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JPA Entity Fields

provider (such as Hibernate) or to change default field settings. For example: @Entity public class ... . Cascade and fetch settings are explained in chapter 3. A persistent field whose type is embeddable ... Fields Inverse (or mapped by) fields contain data that is not stored as part of the entity in
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Server Configuration

system permissions have to be set on the data directory, its subdirectories and database files, to enable ... The <server> configuration element specifies settings for running an ObjectDB Server. The server ... : <server> <connection port="6136" max="0" /> <data path="$objectdb/db-files
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Best practise loading big data

is the main data provider within our solution. In the past we often discovered performance problems when it came to transactions with lots of entities. We have a scenario in which we need efficient data ... we access the data block by block - in each block step by step and in each step value by value
3

Step 6: Design a BIRT Report Table

. Set the column number to 2, number of details to 1, select the data set (e.g. Points by X) in the third field and click OK. Fill the table with data by dragging the x and y columns from the data set in the [Data Explorer] window (under the data set node) and dropping them on the second table row
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javax.jdo.PersistenceManagerFactory

setConnectionDriverName(String driverName) Set the driver name for the data store connection. Set ... connection. Since: JDO 1.0 void setConnectionFactory(Object connectionFactory) Set the data store connection factory. Set the data store connection factory. JDO implementations will support specific
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JDOPermission.SET_STATE_MANAGER

Static Field javax.jdo.spi.JDOPermission JDOPermission SET_STATE_MANAGER An instance of JDOPermission to be used for setStateManager permission checking. Since: JDO 1.0

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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