Re: Easily Import/Export tables

From: open.pumpkin (open.pumpki..mail.com)
Date: Tue Sep 08 2009 - 10:27:15 EDT

  • Next message: open.pumpkin: "Re: Easily Import/Export tables"

    The trace :
    /.../build.xml:20: Error porting data: null
        at org.apache.cayenne.tools.DataPortTask.execute(DataPortTask.java:108)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at
    org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
        at org.apache.tools.ant.Task.perform(Task.java:348)
        at org.apache.tools.ant.Target.execute(Target.java:357)
        at org.apache.tools.ant.Target.performTasks(Target.java:385)
        at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
        at
    org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
        at org.apache.tools.ant.Main.runBuild(Main.java:758)
        at org.apache.tools.ant.Main.startAnt(Main.java:217)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
    Caused by: java.lang.NullPointerException
        at org.apache.cayenne.dba.TypesHandler.<init>(TypesHandler.java:74)
        at org.apache.cayenne.dba.TypesHandler.getHandler(TypesHandler.java:58)
        at org.apache.cayenne.dba.JdbcAdapter.<init>(JdbcAdapter.java:100)
        at
    org.apache.cayenne.dba.mysql.MySQLAdapter.<init>(MySQLAdapter.java:75)
        at
    org.apache.cayenne.dba.mysql.MySQLSniffer.createAdapter(MySQLSniffer.java:71)
        at
    org.apache.cayenne.dba.DbAdapterFactoryChain.createAdapter(DbAdapterFactoryChain.java:58)
        at org.apache.cayenne.dba.AutoAdapter.loadAdapter(AutoAdapter.java:173)
        at org.apache.cayenne.dba.AutoAdapter.getAdapter(AutoAdapter.java:155)
        at
    org.apache.cayenne.dba.AutoAdapter.getExtendedTypes(AutoAdapter.java:263)
        at org.apache.cayenne.access.DataNode.performQueries(DataNode.java:243)
        at org.apache.cayenne.access.DataPort.processDelete(DataPort.java:151)
        at org.apache.cayenne.access.DataPort.execute(DataPort.java:110)
        at org.apache.cayenne.tools.DataPortTask.execute(DataPortTask.java:104)
        ... 17 more
    --- Nested Exception ---
    java.lang.NullPointerException
        at org.apache.cayenne.dba.TypesHandler.<init>(TypesHandler.java:74)
        at org.apache.cayenne.dba.TypesHandler.getHandler(TypesHandler.java:58)
        at org.apache.cayenne.dba.JdbcAdapter.<init>(JdbcAdapter.java:100)
        at
    org.apache.cayenne.dba.mysql.MySQLAdapter.<init>(MySQLAdapter.java:75)
        at
    org.apache.cayenne.dba.mysql.MySQLSniffer.createAdapter(MySQLSniffer.java:71)
        at
    org.apache.cayenne.dba.DbAdapterFactoryChain.createAdapter(DbAdapterFactoryChain.java:58)
        at org.apache.cayenne.dba.AutoAdapter.loadAdapter(AutoAdapter.java:173)
        at org.apache.cayenne.dba.AutoAdapter.getAdapter(AutoAdapter.java:155)
        at
    org.apache.cayenne.dba.AutoAdapter.getExtendedTypes(AutoAdapter.java:263)
        at org.apache.cayenne.access.DataNode.performQueries(DataNode.java:243)
        at org.apache.cayenne.access.DataPort.processDelete(DataPort.java:151)
        at org.apache.cayenne.access.DataPort.execute(DataPort.java:110)
        at org.apache.cayenne.tools.DataPortTask.execute(DataPortTask.java:104)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at
    org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
        at org.apache.tools.ant.Task.perform(Task.java:348)
        at org.apache.tools.ant.Target.execute(Target.java:357)
        at org.apache.tools.ant.Target.performTasks(Target.java:385)
        at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
        at
    org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
        at org.apache.tools.ant.Main.runBuild(Main.java:758)
        at org.apache.tools.ant.Main.startAnt(Main.java:217)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)

    2009/9/8 Andrus Adamchik <andru..bjectstyle.org>

    >
    > On Sep 8, 2009, at 3:24 AM, open.pumpkin wrote:
    >
    > Line #20 is : srcNode="Dev_WKN_Node" destNode="Local_WKN_Node" />
    >> Connections to databases are correct (if I stop one DB, I receive a
    >> Connection refused exception). Node names are correct. But I'm not
    >> familiar
    >> with ant.
    >> Can you enlighten me?
    >>
    >
    > Try running ant with -v flag: "ant -v". It should print the stack trace.
    >
    >
    > Now some general questions :
    >> When using the ant method to export DB data, ID's are kept identical in
    >> different DB's ? Or, if they change, the foreign keys are automatically
    >> mapped with new ID's ? If not, then this method does not interest me.
    >>
    >
    > The ids are preserved.
    >
    > Andrus
    >
    >



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