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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how critical the problem for our application is. btc_es BTC EmbeddedSystems A new temporary file ... -file is enabled. In the new build (2.6.8_08) the temporary file is deleted when the database file ... today. Still, ObjectDB deletes all unused temporary files periodically (also in 2.6.8_06
Temporary disabling of indexes?
further version. Can you implement it that ObjectDB used temporary files? btc_es BTC EmbeddedSystems ... which this data is written to a temporary file. Even without speed optimizations, but with priority ... Although ObjectDB already uses temporary files for many activities (e.g. processing large query
" threshold="64mb" /> To meet memory constraints ObjectDB can use temporary files when processing large data, such as query results that contain millions of objects. The <temp> element specifies temporary file settings: The path attribute specifies a directory in which the temporary files are generated
of the <extensions> element specifies a list of file name extensions that can be used for temporary databases (usually in tests). The content of these temporary databases is deleted when using the drop URL
to the database using flush are considered temporary and are only visible to the owner EntityManager ... and flush enables moving the temporary updates from memory to the database. Note: Flushing updates
is ignored unless the database file name extension indicates that it is a temporary database. By default, the tmp and temp file name extensions represent temporary databases that can be dropped
the ObjectDB home directory, and $temp, representing the system default temporary path, can be used in
the changes in a related temporary file in the same directory as the database file. For instance, a database file named db.odb, would have a corresponding temporary file named .$db.odb$. After the transaction is completed the temporary file is marked as obsolete (and for efficiency, it is deleted
is returned, and its toString() returns a temporary negative number, because a database object ID ... .getObjectId(person); String s1 = oid.toString(); // s1 contains a temporary negative number pm ... different values. Using temporary IDs instead of allocating permanent object IDs immediately