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From "open.pumpkin" <open.pump...@gmail.com>
Subject Re: Easily Import/Export tables
Date Tue, 08 Sep 2009 14:27:15 GMT
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 <andrus@objectstyle.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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