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96

Delete object from collection versus delete from JPQL

Delete object from collection versus delete from JPQL
73

Dependency from enhanced classes to the objectDB library

Hello, we have a Question to the dependency from enhanced classes (required for license ... Example #2) I have the ObjectDB removed from the bundle "com.btc.ep.base.bl.impl". Now we get the error message from post #1. java.lang.NoClassDefFoundError: com/objectdb/spi/TrackableUserType at java
72

Failover from Master to Slave

to evaluate your tool I would like to know if your product has the ability to failover from a Master ... will still be able to read from the slaves but writes will not be allowed until the master is restored ... thousands of dollars in lost revenue. -RG rlgarris Richard Garris Currently automatic switching from
41

joinMap(attributeName, jt)

Method javax.persistence.criteria.From MapJoin<X,K,V> joinMap( String attributeName, JoinType jt ) Create a join to the specified Map-valued attribute using the given join type. Parameters: attributeName - name of the attribute for the target of the join jt - join type Returns: the resulting join
41

joinMap(attributeName)

Method javax.persistence.criteria.From MapJoin<X,K,V> joinMap( String attributeName ) Create an inner join to the specified Map-valued attribute. Parameters: attributeName - name of the attribute for the target of the join Returns: the resulting join Throws: IllegalArgumentException - if attribute of the given name does not exist Since: JPA 2.0
41

join(attributeName, jt)

Method javax.persistence.criteria.From Join<X,Y> join( String attributeName, JoinType jt ) Create a 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 join Throws
41

join(attributeName)

Method javax.persistence.criteria.From Join<X,Y> join( String attributeName ) Create an inner join to the specified attribute. Parameters: attributeName - name of the attribute for the target of the join Returns: the resulting join Throws: IllegalArgumentException - if attribute of the given name does not exist Since: JPA 2.0
41

joinCollection(attributeName, jt)

Method javax.persistence.criteria.From CollectionJoin<X,Y> joinCollection( String attributeName, JoinType jt ) Create a join to the specified Collection-valued attribute using the given join type. Parameters: attributeName - name of the attribute for the target of the join jt - join type Returns
41

joinCollection(attributeName)

Method javax.persistence.criteria.From CollectionJoin<X,Y> joinCollection( String attributeName ) Create an inner join to the specified Collection-valued attribute. Parameters: attributeName - name of the attribute for the target of the join Returns: the resulting join Throws
1

[ODB1] Chapter 6 - Persistent Objects

, every transient object that, at commit time, is reachable from a persistent object (using persistent ... . An embedded object cannot be shared by references from multiple objects. In addition, embedded ... or queried directly (an embedded object can only be retrieved using a reference from its containing

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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