About enhancement

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Issue
14

java.lang.NullPointerException during access a field, only if the classes enhanced

We get the following exception during access a field (Set of entities) The error occurs only if the entities are enhanced.   Caused by: com.objectdb.o.InternalException: Unexpected internal exception at com.objectdb.o.JPE.h(JPE.java:168) at com.objectdb.o.ERR.f(ERR.java:66
Issue
13

ArrayIndexOutOfBoundsException with enhanced Entity

ArrayIndexOutOfBoundsException with enhanced Entity
Tutorial
13

Step 7: Run the Spring Web App

enhancement (weaving) in Tomcat it has to be run with ObjectDB as a Java agent (javaagent:objectdb.jar). When using GlassFish - on the fly enhancement (weaving) is automatically enabled
Tutorial
13

Step 1: Create a Maven Web Project

>        enhance        process-classes                java                       com.objectdb.Enhancer
Result
13

How to upgrade from ObjectDB 1.0?

). Refresh your IDE cache. Rebuild your project using the new jar file and enhance your classes using the new Enhancer. Convert old database files using the ObjectDB converter: > java -jar converter.jar
Tutorial
13

Step 1: Create a Maven Web Project

>enhance        process-classes                java                       com.objectdb.Enhancer
Tutorial
13

Step 7: Run the Spring Web App

enhancement (weaving) in Tomcat: Find the Tomcat server in the [Services window] under Servers. Right ... . Right click the server node and select Restart. When using GlassFish - on the fly enhancement (weaving
Manual
9

ObjectDB Developer's Guide [2018-08-07]

, the Enhancer, the Doctor, etc.             Describes the ObjectDB configuration and explains how to tune
Manual
9

FROM clause (JPQL / Criteria API)

The FROM clause declares query identification variables that represent iteration over objects in the database. A query identification variable is similar to a variable of a Java enhanced for loop in a program, since both are used for iteration over objects. Range Variables Range variables are query
JDO Doc
9

JDO Annotations for Classes

JDO supports two modes of persistable classes that can be set by the following annotations: Non persistable classes that should be enhanced (because of accessing persistent fields of other classes directly) can be marked with: The identity mode of persistence capable classes can be specified by using: