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Best practise loading big data

2.000.000 MyValue objects I open the DB connection, create an entitiy manager and start to read ... expected - normally enhancement speeds up the application. At start of reading, the DB can deliver ... have rechecked: I changed the XML node to . Then I started the test
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2

How to deploy an Objectdb project with Jboss AS 7?

.0.2.GA 04:56:01,382 INFO [org.jboss.as] JBAS015899: JBoss AS 7.1.1.Final "Brontes" starting 04 ... .connector] (MSC service thread 1-6) JBAS010408: Starting JCA Subsystem (JBoss IronJacamar 1.0.9 ... INFO [org.jboss.as.naming] (MSC service thread 1-1) JBAS011802: Starting Naming Service 04:56:02,203
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Join performance in Objectdb

= 160000;                 System.out.println("Database population started.");         em ... ("Query 1 started.");         ms = System.currentTimeMillis();         TypedQuery q1 = em ... +             " milliseconds (" + result + ")");         System.out.println("Query 2 started.");         ms
JPA Doc
2

begin()

Method javax.persistence.EntityTransaction void begin() Start a resource transaction. Throws: IllegalStateException - if isActive() is true Since: JPA 1.0
JDO Doc
2

FetchPlan.maxFetchDepth

Annotation Element javax.jdo.annotations.FetchPlan int maxFetchDepth The depth of references to instantiate, starting with the root object. Returns: the maxium fetch depth Default value: 1 Since: JDO 2.1
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Getting com.objectdb.o.UserException:

) at org.apache.catalina.core.StandardContext.start(StandardContext.java:3404) at org.apache ... .startup.HostConfig.start(HostConfig.java:389) at org.apache.catalina.startup.HostConfig ... (LifecycleSupport.java:155) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1131) at org
JPA Doc
2

javax.persistence.AttributeOverrides

", column=@Column("EMP_START")), @AttributeOverride(name="endDate
JPA Doc
2

javax.persistence.Embedded

({ @AttributeOverride(name="startDate", column=@Column("EMP_START")), @AttributeOverride(name="endDate", column
JPA Doc
2

locate(x, pattern, from)

at which to start search Returns: expression corresponding to position Since: JPA 2.0
JPA Doc
2

locate(x, pattern, from)

to be searched pattern - string to be located from - position at which to start search Returns: expression corresponding to position Since: JPA 2.0