Fast Object Database for Java - with JPA/JDO support

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javax.persistence.TypedQuery

/JPQL queries in Chapter 4 of the ObjectDB/JPA manual. int executeUpdate() Execute an update or delete statement. Execute an update or delete statement. Returns: the number of entities updated or deleted ... for a Java Persistence query language UPDATE or DELETE statement QueryTimeoutException - if the query
4

javax.persistence.OrderColumn

is responsible for updating the ordering upon flushing to the database to reflect any insertion, deletion ... when updating the association or element collection. The order column value for the first element is 0 ... ) Whether the database column is nullable. Default value: true Since: JPA 2.0 boolean updatable (Optional
4

javax.persistence.Query

Chapter 4 of the ObjectDB/JPA manual. int executeUpdate() Execute an update or delete statement. Execute an update or delete statement. Returns: the number of entities updated or deleted Throws ... Persistence query language UPDATE or DELETE statement QueryTimeoutException - if the query execution
3

javax.persistence.CacheStoreMode

/update entity data into cache when read from database and when committed into database. Insert/update entity data into cache when read from database and when committed into database. Forces refresh of cache for items read from database. Since: JPA 2.0 CacheStoreMode USE Insert/update entity data
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javax.persistence.Column

getDescription() { return description; } Example 3: @Column(name="ORDER_COST", updatable=false, precision ... specified at the table level. Default value: false Since: JPA 1.0 boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. (Optional
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javax.persistence.MapKeyJoinColumn

2.0 boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. (Optional) Whether the column is included in SQL UPDATE statements
3

javax.jdo.annotations.Key

ForeignKeyAction updateAction Update action to apply to the foreign key for the key. Update action to apply to the foreign key for the key. Returns: update action to apply to the foreign key for the key Default
3

javax.jdo.annotations.Value

updateAction Update action to apply to any foreign key for the value. Update action to apply to any foreign key for the value. Returns: update action to apply to any foreign key for the value Default value
3

javax.jdo.annotations.Element

value: "" Since: JDO 2.1 ForeignKeyAction updateAction Update action to apply to any foreign key for the element Update action to apply to any foreign key for the element Returns: update action
3

javax.jdo.annotations.ForeignKey

The update action of this foreign key. The update action of this foreign key. Returns: the update action

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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