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<div class="horizontal-block" id="Overview">
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|===
1+| TomEE Philosophy
|
Apache TomEE, pronounced "Tommy", is an all-Apache Java EE 6 Web Profile
certified stack where Tomcat is top dog. Apache TomEE is assembled from
a vanilla Apache Tomcat zip file. We start with Tomcat, add our jars and zip
up the rest. The result is Tomcat with added EE features - TomEE.

Its core values are:

- Be Tomcat
- Be certified
- Be small

|===

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|===
1+| TomEE Links
|

- TomEE Website: link:http://tomee.apache.org[http://tomee.apache.org]
- TomEE Examples: link:http://tomee.apache.org/examples-trunk/index.html[http://tomee.apache.org/examples-trunk/index.html]

|===


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|===
| TomEE ClassLoading
|
[source]
----
   bootstrap ($JAVA_HOME/jre/lib/ext)
      \|
    system (bin/boostrap.jar:bin/tomcat-juli.jar)
      \|
    common (lib/*.jar)
    /    \
webapp1 webapp2
----

Classloading configuration (properties):

- `openejb.classloader.forced-load=<comma separated list of class name prefixes>`: classes to load from the webapp first
whatever is in the container
- `openejb.classloader.forced-skip=<idem>`: classes to load from the container
whatever is in the application

|===

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|===
2+| TomEE Basic Operation
| Start and wait Ctrl+C      | ./bin/catalina.sh run
| Start and forget           | ./bin/catalina.sh start
| Stop                       | ./bin/catalina.sh stop
| Deploy manually a webapp   | copy war over webapps/
| Redeploy manually a webapp | delete exploded war then deploy
|===

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|===
1+| TomEE Distributions
|

- TomEE Web Profile: JavaEE 6 Web profile sever (certified)
- TomEE JAX-RS: previous one + JAX-RS (certified)
- TomEE+: previous one + JAXWS + JMS + Connectors

|===

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|===
2+| TomEE Directory Layout
| bin             | contains script to manage (start/stop/...) TomEE
| conf            | server global configuration
| endorsed        | override JVM API because too old for JavaEE
| lib             | server libraries
| logs            | logs directory (using default configuration)
| temp            | default tmp directory
| webapps         | default folder which aims to contain webapps
| work            | folder used by Tomcat to store "work" binaries (compiled jsp...)
|===


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