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124

Path in tomcat

/, then where the .conf should be in? And the .odb? See explanations about ObjectDB home and configuration path in the manual. Notice that the database file can be at any absolute path that you specify. support ... " and then use this path. Now you can redeploy you application without deleting database files
122

Problem with distinct select, order by and equivalent alias/attribute path

so...) - shouldn't the expressions (alias and access path) theoretically be equivalent ... real sense to me switching from alias to attribute path between projection and order by part... bklink Benjamin Klink
122

$temp property not evaluated properly when used in log path

I have the following lines in my objectdb.conf file: <log path="$temp/ObjectDB/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$temp/ObjectDB/log/archive/" retain="90" /> I don't believe that the $temp property is being evaluated properly here as it creates a new directory
122

Adding multi part path index on non-embedable object member

definition is invalid, since a multi path index is limited to one entity class (and additional embeddable classes) but cannot spread over multiple entity classes. You may split a multi path index
122

Multi part paths in a composite index must have the same length

Hi, I am trying to create some index in a DB - but I get an exception when i try to commit. Exception in thread "main" [ObjectDB 2.6.0_01] javax.persistence.PersistenceException Invalid index path ... as my SafeLong class is just a simple wrapper. Multi part paths in a composite index
116

Navigation through Path to evaluate collection

Navigation through Path to evaluate collection
116

migration path from JPA / Hibernate

migration path from JPA / Hibernate
23

SELECT clause (JPQL / Criteria API)

- JPQL does not support the "SELECT *" expression (which is commonly used in SQL). Projection of Path ... FROM Country AS c Using path expressions, such as c.name, in query results is referred to as ... > results = query.getResultList(); Only singular value path expressions can be used in the SELECT
23

Server Configuration

: <server> <connection port="6136" max="0" /> <data path="$objectdb/db-files ... . The <data> element <data path="$objectdb/db-files" /> The <data> element has one attribute, path, which specifies the location of ObjectDB databases that the server manages. The $objectdb
23

Index Definition

annotation directly to the indexed field. Multi Part Path Index The members attribute is also required in order to define indexes on multi part paths: @Entity @Index(members={"address.city"}) public ... to values that are stored as part of the entity. Therefore, indexes on multi part paths

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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