Chapter 9. Appendix
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## Chapter 9. Appendix

## 9.1. Example POJO

The example POJO classes used for are: `Person,` `Student,` and `Address`. Below are their defintion (note that neither class implements `Serializable` ).

    public class Person {
       String name=null;
       int age=0;
       Map hobbies=null;
       Address address=null;
       Set skills;
       List languages;

       public String getName() { return name; }
       public void setName(String name) { this.name=name; }

       public int getAge() { return age; }
       public void setAge(int age) { this.age = age; }

       public Map getHobbies() { return hobbies; }
       public void setHobbies(Map hobbies) { this.hobbies = hobbies; }

       public Address getAddress() { return address; }
       public void setAddress(Address address) { this.address = address; }

       public Set getSkills() { return skills; }
       public void setSkills(Set skills) { this.skills = skills; }

       public List getLanguages() { return languages; }
       public void setLanguages(List languages) { this.languages = languages; }
    }

    public class Student extends Person {
       String year=null;

       public String getYear() { return year; }
       public void setYear(String year) { this.year=year; }
    }

    public class Address {
       String street=null;
       String city=null;
       int zip=0;

       public String getStreet() { return street; }
       public void setStreet(String street) { this.street=street; }
       ...
    }

## 9.2. Sample configuration xml

Below is a sample xml configuration for PojoCache. Today, it uses the same configuration option as that of TreeCache super-class except the MBean service class (if you are deploying it under JBoss).

    <?xml version="1.0" encoding="UTF-8" ?>

    <server>
    <mbean code="org.jboss.cache.aop.PojoCache" name="jboss.cache:service=PojoCache">
    <depends>jboss:service=TransactionManager</depends>

    <!--         Configure the TransactionManager -->
    <attribute name="TransactionManagerLookupClass">org.jboss.cache.DummyTransactionManagerLookup</attribute>

    <!--             Isolation level : SERIALIZABLE
                                REPEATABLE_READ (default)
                                READ_COMMITTED
                                READ_UNCOMMITTED
                                NONE
    -->
    <attribute name="IsolationLevel">REPEATABLE_READ</attribute>

    <!--              Valid modes are LOCAL, REPL_ASYNC and REPL_SYNC -->
    <attribute name="CacheMode">REPL_SYNC</attribute>

    <!--         Just used for async repl: use a replication queue -->
    <attribute name="UseReplQueue">false</attribute>

    <!--             Replication interval for replication queue (in ms) -->
    <attribute name="ReplQueueInterval">0</attribute>

    <!--             Max number of elements which trigger replication -->
    <attribute name="ReplQueueMaxElements">0</attribute>

    <!--  Name of cluster. Needs to be the same for all clusters, in order
               to find each other
    -->
    <attribute name="ClusterName">TreeCache-Cluster</attribute>

    <!--  JGroups protocol stack properties. Can also be a URL,
               e.g. file:/home/bela/default.xml
             <attribute name="ClusterProperties"></attribute>
    -->
    <attribute name="ClusterConfig">

    <config>
    <!--  UDP: if you have a multihomed machine,
                  set the bind_addr attribute to the appropriate NIC IP address, e.g bind_addr="192.168.0.2"
    -->
    <!--  UDP: On Windows machines, because of the media sense feature
                   being broken with multicast (even after disabling media sense)
                   set the loopback attribute to true
    -->
    <UDP mcast_addr="228.1.2.3" mcast_port="48866" ip_ttl="64" ip_mcast="true" mcast_send_buf_size="150000" mcast_recv_buf_size="80000" ucast_send_buf_size="150000" ucast_recv_buf_size="80000" loopback="false" />
    <PING timeout="2000" num_initial_members="3" up_thread="false" down_thread="false" />
    <MERGE2 min_interval="10000" max_interval="20000" />
    <FD_SOCK />
    <VERIFY_SUSPECT timeout="1500" up_thread="false" down_thread="false" />
    <pbcast.NAKACK gc_lag="50" retransmit_timeout="600,1200,2400,4800" max_xmit_size="8192" up_thread="false" down_thread="false" />
    <UNICAST timeout="600,1200,2400" window_size="100" min_threshold="10" down_thread="false" />
    <pbcast.STABLE desired_avg_gossip="20000" up_thread="false" down_thread="false" />
    <FRAG frag_size="8192" down_thread="false" up_thread="false" />
    <pbcast.GMS join_timeout="5000" join_retry_timeout="2000" shun="true" print_local_addr="true" />
    <pbcast.STATE_TRANSFER up_thread="true" down_thread="true" />
    </config>
    </attribute>

    <!--         Whether or not to fetch state on joining a cluster -->
    <attribute name="FetchStateOnStartup">true</attribute>

    <!--             The max amount of time (in milliseconds) we wait until the
                initial state (ie. the contents of the cache) are retrieved from
                existing members in a clustered environment

    -->
    <attribute name="InitialStateRetrievalTimeout">5000</attribute>

    <!--             Number of milliseconds to wait until all responses for a
                synchronous call have been received.
    -->
    <attribute name="SyncReplTimeout">15000</attribute>

    <!--  Max number of milliseconds to wait for a lock acquisition -->
    <attribute name="LockAcquisitionTimeout">10000</attribute>

    <!--  Name of the eviction policy class. -->
    <attribute name="EvictionPolicyClass" />
    </mbean>
    </server>

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