10 Replies Latest reply on Jan 25, 2007 11:40 AM by Manik Surtani

    who can help me? something about treecache.

    neddy li Newbie

      I want to use the Jboss's TreeCache to manage my object,but something problem:

      I have an interface class CacheEngin.java

      code:
      /*
      * Copyright (c) Rafael Steil
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms,
      * with or without modification, are permitted provided
      * that the following conditions are met:
      *
      * 1) Redistributions of source code must retain the above
      * copyright notice, this list of conditions and the
      * following disclaimer.
      * 2) Redistributions in binary form must reproduce the
      * above copyright notice, this list of conditions and
      * the following disclaimer in the documentation and/or
      * other materials provided with the distribution.
      * 3) Neither the name of "Rafael Steil" nor
      * the names of its contributors may be used to endorse
      * or promote products derived from this software without
      * specific prior written permission.
      *
      * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
      * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
      * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
      * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
      * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
      * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
      * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
      * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
      * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
      * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
      * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
      * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
      * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
      * IN CONTRACT, STRICT LIABILITY, OR TORT
      * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
      * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
      * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
      *
      * Created on Jan 13, 2005 5:58:36 PM
      * The JForum Project
      * http://www.jforum.net
      */
      package com.eplugger.plugin.cache.engine;

      import java.util.Collection;

      /**
      * @author Rafael Steil
      * @version $Id: CacheEngine.java,v 1.1 2006/10/21 08:27:56 lyw Exp $
      */
      public interface CacheEngine {
      public static final String DUMMY_FQN = "";
      public static final String NOTIFICATION = "notification";
      public static final String defaultFqn = "/default";

      /**
      * Inits the cache engine.
      */
      public void init();

      /**
      * Stops the cache engine
      */
      public void stop();

      /**
      * Adds a new object to the cache.
      * The fqn will be set as the value of {@link #DUMMY_FQN}
      *
      * @param key The key to associate with the object.
      * @param value The object to cache
      */
      public void add(String key, Object value);

      /**
      *
      * Adds a new object to the cache.
      *
      * @param fqn The fully qualified name of the cache.
      * @param key The key to associate with the object
      * @param value The object to cache
      */
      public void add(String fqn, String key, Object value);

      /**
      * Gets some object from the cache.
      *
      * @param fqn The fully qualified name associated with the key
      * @param key The key to get
      * @return The cached object, or null if no entry was found
      */
      public Object get(String fqn, String key);

      /**
      * Gets some object from the cache.
      *
      * @param key The fqn tree to get
      * @return The cached object, or null if no entry was found
      */
      public Object get(String fqn);

      /**
      * Gets all values from some given FQN.
      *
      * @param fqn
      * @return
      */
      public Collection getValues(String fqn);

      /**
      * Removes an entry from the cache.
      *
      * @param fqn The fully qualified name associated with the key
      * @param key The key to remove
      */
      public void remove(String fqn, String key);

      /**
      * Removes a complete note from the cache
      * @param key The fqn to remove
      */
      public void remove(String fqn);

      /**
      * Removes a default cache
      * @param key The fqn to remove
      */
      public void remove();

      /**
      * Removes a complete note from the cache
      * @param key The fqn to remove
      */
      public int size(String fqn);

      /**
      * Removes a default cache
      * @param key The fqn to remove
      */
      public int size();

      }


      I use TreeCache at a Class JBossTreeCacheEngine.jave
      Code:

      package com.eplugger.plugin.cache.engine;

      import java.util.Collection;

      import java.util.Map;
      import org.jboss.cache.CacheException;
      import java.util.HashMap;
      import org.jboss.cache.Fqn;
      import org.jboss.cache.TransactionManagerLookup;
      import org.jboss.cache.TreeCache;
      import junit.framework.TestCase;
      import org.jboss.cache.lock.IsolationLevel;

      /**
      * Title:
      * Description:
      * Copyright: Copyright (c) 2007
      * Company:
      * @author not attributable
      * @version 1.0
      */

      public class JBossTreeCacheEngine
      extends TestCase
      implements CacheEngine {
      public JBossTreeCacheEngine() {
      }

      TreeCache cache = null;
      Exception ex=null;
      protected void setUp() throws Exception {
      super.setUp();
      cache=new TreeCache();
      cache.setCacheMode(TreeCache.LOCAL);
      cache.setClusterProperties("treecache.xml");
      cache.setTransactionManagerLookupClass("org.jboss.cache.DummyTransactionManagerLookup");
      cache.setIsolationLevel(IsolationLevel.REPEATABLE_READ);
      cache.createService();
      cache.startService();
      ex=null;
      }

      protected void tearDown() throws Exception {
      super.tearDown();
      if(cache != null) {
      cache.stopService();
      cache.destroyService();
      cache=null;
      }
      if(ex != null)
      throw ex;
      }

      public void init() {
      try {
      this.setUp();
      }
      catch (Exception ex) {
      System.out.print("################jboss treecache unInit###########");
      ex.printStackTrace();
      }
      }

      public void stop() {
      try {
      this.tearDown();
      }
      catch (Exception ex) {
      System.out.print("################jboss treecache unstop###########");
      ex.printStackTrace();
      }

      }

      public void add(String key, Object value) {
      try {
      this.add(defaultFqn, key, value);
      }
      catch (Exception ex) {
      ex.printStackTrace();
      }
      }

      public void add(String fqn, String key, Object value) {
      try {
      this.cache.put(Fqn.fromString(fqn), key, value);
      }
      catch (Exception ex) {
      ex.printStackTrace();
      }

      }

      public Object get(String fqn, String key) {
      try {
      return cache.get(Fqn.fromString(fqn), key);
      }
      catch (Exception ex) {
      ex.printStackTrace();
      }
      return null;
      }

      public Object get(String key) {
      try {
      return cache.get(Fqn.fromString(defaultFqn), key);
      }
      catch (Exception ex) {
      ex.printStackTrace();
      }
      return null;
      }

      public Collection getValues(String fqn) {
      return cache._getData(Fqn.fromString(fqn)).values();
      }

      public void remove(String fqn, String key) {
      try {
      cache.remove(Fqn.fromString(fqn), key);
      }
      catch (Exception ex) {
      ex.printStackTrace();
      }
      }

      public void remove(String fqn) {

      try {
      this.cache.remove(Fqn.fromString(fqn));
      }
      catch (CacheException ex) {
      ex.printStackTrace();
      }
      }

      public void remove() {
      try {
      this.cache.remove(defaultFqn);
      }
      catch (CacheException ex) {
      ex.printStackTrace();
      }
      }

      public int size(String fqn) {
      Map map = (Map) cache._getData(Fqn.fromString(fqn));
      if (map == null) {
      return 0;
      }
      return map.size();

      }

      public int size() {
      return this.size(defaultFqn);
      }

      }

      the treecache.xml:

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


      <!-- ==================================================================== -->
      <!-- Defines TreeCache configuration -->
      <!-- ==================================================================== -->

      jboss:service=Naming
      jboss:service=TransactionManager
      <!-- Configure the TransactionManager -->
      org.jboss.cache.DummyTransactionManagerLookup
      <!--
      Node locking scheme :
      PESSIMISTIC (default)
      OPTIMISTIC
      -->
      PESSIMISTIC
      <!--
      Node locking isolation level :
      SERIALIZABLE
      REPEATABLE_READ (default)
      READ_COMMITTED
      READ_UNCOMMITTED
      NONE
      (ignored if NodeLockingScheme is OPTIMISTIC)
      -->
      REPEATABLE_READ
      <!-- Valid modes are LOCAL
      REPL_ASYNC
      REPL_SYNC
      INVALIDATION_ASYNC
      INVALIDATION_SYNC
      -->
      LOCAL
      <!-- Whether each interceptor should have an mbean
      registered to capture and display its statistics. -->
      true
      <!-- Name of cluster. Needs to be the same for all clusters, in order
      to find each other -->
      JBoss-Cache-Cluster


      <!-- UDP: if you have a multihomed machine,
      set the bind_addr attribute to the appropriate NIC IP address
      -->
      <!-- 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="45566" 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 shun="true" up_thread="true" down_thread="true" />
      <VERIFY_SUSPECT timeout="1500" up_thread="false" down_thread="false" />
      <pbcast.NAKACK gc_lag="50" max_xmit_size="8192" retransmit_timeout="600,1200,2400,4800" 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="false" down_thread="false" />



      <!-- Buddy Replication config -->


      <!-- Enables buddy replication. This is the ONLY-->
      true
      <!-- These are the default values anyway -->
      org.jboss.cache.buddyreplication.NextMemberBuddyLocator
      <!-- numBuddies is the number of backup nodes each each node will *try* to select a buddy on a different physical host. If it will fall back to colocated nodes. -->

      numBuddies = 1
      ignoreColocatedBuddies = true

      <!--
      A way to specify a preferred replication group. the same pool name (falling back to other buddies if not available).
      This allows backup buddies are picked, so for example, nodes may be hinted topick buddies or power supply for added fault tolerance.
      -->
      myBuddyPoolReplicationGroup
      <!-- Communication timeout for inter-buddy group from groups, defaults to 1000. -->
      2000
      <!-- Whether data is removed from old owners when-->
      true
      <!-- Whether backup nodes can respond to data gravitation defaults to true. -->
      true
      <!-- Whether all cache misses result in a data gravitation enable data gravitation on a per-invocation-->
      false



      <!-- 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
      -->
      5000
      <!-- Number of milliseconds to wait until all responses for a
      synchronous call have been received.
      -->
      10000
      <!-- Max number of milliseconds to wait for a lock acquisition -->
      15000
      <!-- Name of the eviction policy class. -->
      org.jboss.cache.eviction.LRUPolicy
      <!-- Specific eviction policy configurations. This is LRU -->


      5
      <!-- Cache wide default -->

      5000
      1000
      <!-- Maximum time an object is kept in cache regardless of idle time -->
      120


      5000
      1000


      5
      4



      <!-- New 1.3.x cache loader config block -->


      <!-- if passivation is true, only the first cache loader is used; the rest are ignored -->
      false
      /a/b, /allTempObjects, /some/specific/fqn
      false
      <!-- we can now have multiple cache loaders, which get chained -->

      org.jboss.cache.loader.FileCacheLoader
      <!-- same as the old CacheLoaderConfig attribute -->

      location=c:\\tmp\\myFileStore

      <!-- whether the cache loader writes are asynchronous -->
      false
      <!-- only one cache loader in the chain may set fetchPersistentState to true.
      An exception is thrown if more than one cache loader sets this to true. -->
      true
      <!-- determines whether this cache loader ignores writes - defaults to false. -->
      false
      <!-- if set to true, purges the contents of this cache loader when the cache starts up.
      Defaults to false. -->
      false




      <!-- Configure Marshalling -->
      true
      true





      but when I run this object Throw an Exception at the Tomcat4.1 control like under:

      *********************** ClearCache 2007-01-16 09:29:48
      java.lang.RuntimeException: java.lang.NoSuchMethodError: org.jboss.cache.marshall.JBCMethodCall.getArgs()[Ljava/lang/Object;
      at org.jboss.cache.TreeCache.invokeMethod(TreeCache.java:5526)
      at org.jboss.cache.TreeCache.remove(TreeCache.java:3700)
      at org.jboss.cache.TreeCache.remove(TreeCache.java:3688)
      at com.eplugger.plugin.cache.engine.JBossTreeCacheEngine.remove(JBossTreeCacheEngine.java:139)
      at com.eplugger.plugin.cache.ChannelCacheManager.clearCache(ChannelCacheManager.java:518)
      at com.eplugger.plugin.cache.ChannelCacheThread.run(ChannelCacheThread.java:37)
      at java.lang.Thread.run(Thread.java:534)
      Caused by: java.lang.NoSuchMethodError: org.jboss.cache.marshall.JBCMethodCall.getArgs()[Ljava/lang/Object;
      at org.jboss.cache.interceptors.CacheMgmtInterceptor.invoke(CacheMgmtInterceptor.java:123)
      at org.jboss.cache.TreeCache.invokeMethod(TreeCache.java:5520)
      ... 6 more


      who can tell me what is wrong? and how can I do ? or what can I do? I use JDK 1.4.2_06 and mysql 4.1.3 and tomcat4.1

        • 1. Re: who can help me? something about treecache.
          Manik Surtani Master

          What version of JBoss Cache are you using?

          • 2. Re: who can help me? something about treecache.
            neddy li Newbie

            thank you! My JbossCache version is 1.4.0sp1,now I can run my object but
            no Exception,but has some new problem is I can't get the cache's size use the default Fqn,

            "expression" cache.getKeys(Fqn.fromString(fqn)) = <Can't assign org.jboss.cache.Fqn to java.lang.String>

            can you tell me what's wrong?

            • 3. Re: who can help me? something about treecache.
              Manik Surtani Master

              I don't understand what you're trying to do here. Fqn.fromString() is meant to convert a String to an Fqn.

              E.g., Fqn.fromString("/a/b/c");

              • 4. Re: who can help me? something about treecache.
                neddy li Newbie

                the defaultFqn="defalut" your means is I should new Fqn(default),or
                I can define the defaultFqn ="/default" and than I can use Fqn.fromString(defaultFqn) or Right?

                • 5. Re: who can help me? something about treecache.
                  Manik Surtani Master

                  If that is what you want to do, yes. I still don't understand what it is you are trying to do though. :-)

                  • 6. Re: who can help me? something about treecache.
                    neddy li Newbie

                    OK, so please see my treecache.xml:


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



                    jboss:service=Naming
                    jboss:service=TransactionManager
                    JBoss-Cache-Cluster


                    <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"/>



                    <!--
                    Valid modes are LOCAL
                    REPL_ASYNC
                    REPL_SYNC
                    INVALIDATION_ASYNC
                    INVALIDATION_SYNC
                    -->
                    LOCAL

                    <!--
                    Node locking scheme :
                    PESSIMISTIC (default)
                    OPTIMISTIC
                    -->
                    PESSIMISTIC

                    REPEATABLE_READ

                    org.jboss.cache.DummyTransactionManagerLookup

                    <!-- Whether each interceptor should have an mbean
                    registered to capture and display its statistics. -->
                    true

                    <!-- Buddy Replication config -->


                    <!-- Enables buddy replication. This is the ONLY-->
                    true
                    <!-- These are the default values anyway -->
                    org.jboss.cache.buddyreplication.NextMemberBuddyLocator
                    <!-- numBuddies is the number of backup nodes each each node will *try* to select a buddy on a different physical host. If it will fall back to colocated nodes. -->

                    numBuddies = 1
                    ignoreColocatedBuddies = true

                    <!--
                    A way to specify a preferred replication group. the same pool name (falling back to other buddies if not available).
                    This allows backup buddies are picked, so for example, nodes may be hinted topick buddies or power supply for added fault tolerance.
                    -->
                    myBuddyPoolReplicationGroup
                    <!-- Communication timeout for inter-buddy group from groups, defaults to 1000. -->
                    2000
                    <!-- Whether data is removed from old owners when-->
                    true
                    <!-- Whether backup nodes can respond to data gravitation defaults to true. -->
                    true
                    <!-- Whether all cache misses result in a data gravitation enable data gravitation on a per-invocation-->
                    false



                    <!-- 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
                    -->
                    5000
                    <!-- Number of milliseconds to wait until all responses for a
                    synchronous call have been received.
                    -->
                    10000
                    <!-- Max number of milliseconds to wait for a lock acquisition -->
                    15000


                    <!--


                    5

                    5000
                    1000



                    5000


                    10000


                    10000
                    8
                    10




                    -->

                    org.jboss.cache.eviction.LRUPolicy





                    false
                    /
                    true

                    org.jboss.cache.loader.FileCacheLoader

                    location=c:\\temp\\myFileStore

                    true
                    false
                    false
                    false

                    <!--

                    org.jboss.cache.loader.JDBCCacheLoader

                    cache.jdbc.table.name=jbosscache
                    cache.jdbc.table.create=true
                    cache.jdbc.table.drop=true
                    cache.jdbc.table.primarykey=jbosscache_pk
                    cache.jdbc.fqn.column=fqn
                    cache.jdbc.fqn.type=varchar(255)
                    cache.jdbc.node.column=node
                    cache.jdbc.node.type=longblob
                    cache.jdbc.parent.column=parent
                    cache.jdbc.driver=com.mysql.jdbc.Driver
                    cache.jdbc.url=jdbc:mysql://localhost:3306/jbossdb
                    cache.jdbc.user=root
                    cache.jdbc.password=

                    true
                    false
                    false

                    -->





                    now I put it in the folder which called "resources"

                    so when I start the service I use
                    tree.setClusterProperties("resources/treecache.xml");
                    but how I to know the xml file already be read;can you tell me?

                    • 7. Re: who can help me? something about treecache.
                      neddy li Newbie

                      OK, so sorry please see this treecache.xml:

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



                      jboss:service=Naming
                      jboss:service=TransactionManager
                      JBoss-Cache-Cluster


                      <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"/>




                      <!--
                      Valid modes are LOCAL
                      REPL_ASYNC
                      REPL_SYNC
                      INVALIDATION_ASYNC
                      INVALIDATION_SYNC
                      -->
                      LOCAL
                      <!--
                      Node locking scheme :
                      PESSIMISTIC (default)
                      OPTIMISTIC
                      -->
                      PESSIMISTIC

                      REPEATABLE_READ

                      org.jboss.cache.DummyTransactionManagerLookup

                      <!-- Whether each interceptor should have an mbean
                      registered to capture and display its statistics. -->
                      true

                      <!-- Buddy Replication config -->


                      <!-- Enables buddy replication. This is the ONLY-->
                      true
                      <!-- These are the default values anyway -->
                      org.jboss.cache.buddyreplication.NextMemberBuddyLocator
                      <!-- numBuddies is the number of backup nodes each each node will *try* to select a buddy on a different physical host. If it will fall back to colocated nodes. -->

                      numBuddies = 1
                      ignoreColocatedBuddies = true

                      <!--
                      A way to specify a preferred replication group. the same pool name (falling back to other buddies if not available).
                      This allows backup buddies are picked, so for example, nodes may be hinted topick buddies or power supply for added fault tolerance.
                      -->
                      myBuddyPoolReplicationGroup
                      <!-- Communication timeout for inter-buddy group from groups, defaults to 1000. -->
                      2000
                      <!-- Whether data is removed from old owners when-->
                      true
                      <!-- Whether backup nodes can respond to data gravitation defaults to true. -->
                      true
                      <!-- Whether all cache misses result in a data gravitation enable data gravitation on a per-invocation-->
                      false



                      <!-- 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
                      -->
                      5000
                      <!-- Number of milliseconds to wait until all responses for a
                      synchronous call have been received.
                      -->
                      10000
                      <!-- Max number of milliseconds to wait for a lock acquisition -->
                      15000

                      <!--


                      5

                      5000
                      1000



                      5000


                      10000


                      10000
                      8
                      10




                      -->

                      org.jboss.cache.eviction.LRUPolicy





                      false
                      /
                      true

                      org.jboss.cache.loader.FileCacheLoader

                      location=c:\\temp\\myFileStore

                      true
                      false
                      false
                      false

                      <!--

                      org.jboss.cache.loader.JDBCCacheLoader

                      cache.jdbc.table.name=jbosscache
                      cache.jdbc.table.create=true
                      cache.jdbc.table.drop=true
                      cache.jdbc.table.primarykey=jbosscache_pk
                      cache.jdbc.fqn.column=fqn
                      cache.jdbc.fqn.type=varchar(255)
                      cache.jdbc.node.column=node
                      cache.jdbc.node.type=longblob
                      cache.jdbc.parent.column=parent
                      cache.jdbc.driver=com.mysql.jdbc.Driver
                      cache.jdbc.url=jdbc:mysql://localhost:3306/jbossdb
                      cache.jdbc.user=root
                      cache.jdbc.password=

                      true
                      false
                      false

                      -->





                      now I put it in the folder which called "resources"

                      so when I start the service I use
                      tree.setClusterProperties("resources/treecache.xml");
                      but how I to know the xml file already be read;can you tell me?

                      • 8. Re: who can help me? something about treecache.
                        Manik Surtani Master

                        is the directory above resources in your classpath?

                        • 9. Re: who can help me? something about treecache.
                          neddy li Newbie

                          yet, the path is class/resources/treecache.xml,

                          so can you give me a simple comfig but not the ect/META-INF/tree-service.xml, of course, if you can write some notes or tell me for what? and whether or no thank you for your help!

                          • 10. Re: who can help me? something about treecache.
                            Manik Surtani Master

                            There are lots of other configs shipped with the distro. I suggest using one of those and customising accordingly.