Fast Object Database for Java - with JPA/JDO support

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Performance tuning, best practices

are: path="$temp" threshold="64mb" /> path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> path="$objectdb/log/archive
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Connection is closed Caused by: java.io.EOFException

with jdk1.6.0_17 My conf is close to the default path="$temp/ObjectDB" threshold="64mb" /> path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> path="$objectdb/log/archive/" retain="90
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each 1-2 days objects on some objectdb level lock/block each other

of these settings): path="$temp ... ="true" password="true" /> path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> path="$objectdb/log/archive/" retain="90" />
2

significant performance decrease

path="$temp" threshold="64mb" /> path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> path="$objectdb/log/archive/" retain="90" />
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locks on pure query activities

> path="$temp" threshold="64mb" /> path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> path="$objectdb/log/archive/" retain="90" />
2

Replication Issue

                        path="$temp" threshold ... " user="true" password="true" />                 path="$objectdb/log/" max="8mb" stdout="false" stderr="false" />                 path="$objectdb/log/archive/" retain="90
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javax.persistence.TupleElement

javax.persistence Interface TupleElement Subinterfaces: CollectionJoin, CompoundSelection, Case, Coalesce, In, SimpleCase, Expression, From, Join, ListJoin, MapJoin, ParameterExpression, Path, PluralJoin, Predicate, Root, Selection, SetJoin, Subquery The TupleElement interface defines an element
2

Unable to stop server after starting in SSL mode

../objectdb.conf stop objectdb.conf (SSL mode - masked): path ... " user="true" password="true" /> path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> path="$objectdb/log/archive/" retain="90" />
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javax.persistence.criteria.Selection

javax.persistence.criteria Interface Selection Superinterfaces: TupleElement Subinterfaces: CollectionJoin, CompoundSelection, Case, Coalesce, In, SimpleCase, Expression, From, Join, ListJoin, MapJoin, ParameterExpression, Path, PluralJoin, Predicate, Root, SetJoin, Subquery The Selection
2

javax.persistence.metamodel.Bindable

javax.persistence.metamodel Interface Bindable Subinterfaces: CollectionAttribute, EntityType, 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

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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