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org.apache.oozie.command.wf
Class ExternalIdCommand

java.lang.Object
  org.apache.oozie.command.Command<T,WorkflowStore>
      org.apache.oozie.command.wf.WorkflowCommand<String>
          org.apache.oozie.command.wf.ExternalIdCommand

All Implemented Interfaces:

Callable<String>, XCallable<String>

public class ExternalIdCommand
extends WorkflowCommand<String>

Field Summary

Fields inherited from class org.apache.oozie.command.Command

dryrun, instrumentation, LOCK_FAILURE_REQUEUE_INTERVAL

Constructor Summary

ExternalIdCommand(String id)

Method Summary

protected String

call(WorkflowStore store) DagCallable subclasses must implement this method to perform their task.

Methods inherited from class org.apache.oozie.command.wf.WorkflowCommand

getStoreClass

Methods inherited from class org.apache.oozie.command.Command

call, execute, getCreatedTime, getInstrumentation, getKey, getName, getPriority, getType, incrCommandCounter, incrJobCounter, incrJobCounter, lock, logQueueCallableFalse, queueCallable, queueCallable, queueCallable, queueCallableForException, resetLogInfoAction, resetLogInfoWorkflow, setLogInfo, setLogInfo, setLogInfo, setLogInfo, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ExternalIdCommand

public ExternalIdCommand(String id)

Method Detail

call

protected String call(WorkflowStore store)
               throws StoreException,
                      CommandException

Description copied from class: Command

DagCallable subclasses must implement this method to perform their task.

The workflow store works in transactional mode. The transaction is committed only if this method ends successfully. Otherwise the transaction is rolledback.

Specified by:

call in class Command<String,WorkflowStore>

Parameters:

store - the workflow store instance for the callable, null if the callable does not use a store.

Returns:

the return value of the callable.

Throws:

StoreException - thrown if the workflow store could not perform an operation.

CommandException - thrown if the command could not perform its operation.