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Server connection management

blocking read to listen to client requests. When the connection is closed on the client

Soft Reference Object Cache Recommendation

callback/listeners to track all objects in a manual strong reference list and upon GC detection manually

Detecting ObjectDB alive

Hi, I'm wondering how best to be able to detect if ObjectDb Server is alive? For: a) from a java process - I'm guessing you could try and grab a Persistence Manager and/or listen for a Disconnection Exception?? b) from a NodeJs runtime - I'm guessing you could either try and grab the ObjectDb

@PrePersist Implementation

Hi Please help me.I have requirement like In my project having arround 100 pojos .I have used @EntityListener and @prePersist annotaions to invoke my action class .. But problem is how can i get oldvalue and new value of current form of pojo in side my @entity Listener Action class. code snipt

Cast exception?

.Player cannot be cast to database.entity.Player, Listener: { Ext: TestServer, Type: JAVA, Lev: ZONE

How to change properties in urls2.xml?

is listening by adding a port argument to the url that is used to open the database in embedded mode

ObjectDB JDO - foreign key constraints

you may be able to listen to JDO lifecycle events and then execute cascading operations by using the relevant code. support Support

Show Sql/Jpql

queries). You may log these operations by setting a JPA lifecycle listener or callback. support

Method Invocation On All Entities

the deletion. You may define a callback or listener for JPA lifecycle events (see this manual page

connection pooling

: The port attribute specifies a TPC port on which the server is listening for new connections. Usually

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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