org.apache.oozie.command.wf
Class SignalCommand

java.lang.Object
  extended by org.apache.oozie.command.Command<T,WorkflowStore>
      extended by org.apache.oozie.command.wf.WorkflowCommand<Void>
          extended by org.apache.oozie.command.wf.SignalCommand
All Implemented Interfaces:
Callable<Void>, XCallable<Void>
Direct Known Subclasses:
StartCommand

public class SignalCommand
extends WorkflowCommand<Void>


Field Summary
protected static String INSTR_SUCCEEDED_JOBS_COUNTER_NAME
           
 
Fields inherited from class org.apache.oozie.command.Command
dryrun, instrumentation, LOCK_FAILURE_REQUEUE_INTERVAL
 
Constructor Summary
protected SignalCommand(String name, int priority, String jobId)
           
  SignalCommand(String jobId, String actionId)
           
 
Method Summary
protected  Void call(WorkflowStore store)
          DagCallable subclasses must implement this method to perform their task.
static ELEvaluator createELEvaluatorForGroup(org.apache.hadoop.conf.Configuration conf, String group)
           
protected  Void execute(WorkflowStore store)
           
 
Methods inherited from class org.apache.oozie.command.wf.WorkflowCommand
getStoreClass
 
Methods inherited from class org.apache.oozie.command.Command
call, 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
 

Field Detail

INSTR_SUCCEEDED_JOBS_COUNTER_NAME

protected static final String INSTR_SUCCEEDED_JOBS_COUNTER_NAME
See Also:
Constant Field Values
Constructor Detail

SignalCommand

protected SignalCommand(String name,
                        int priority,
                        String jobId)

SignalCommand

public SignalCommand(String jobId,
                     String actionId)
Method Detail

call

protected Void call(WorkflowStore store)
             throws CommandException,
                    StoreException
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<Void,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:
CommandException - thrown if the command could not perform its operation.
StoreException - thrown if the workflow store could not perform an operation.

createELEvaluatorForGroup

public static ELEvaluator createELEvaluatorForGroup(org.apache.hadoop.conf.Configuration conf,
                                                    String group)

execute

protected Void execute(WorkflowStore store)
                throws CommandException,
                       StoreException
Overrides:
execute in class Command<Void,WorkflowStore>
Throws:
CommandException
StoreException


Copyright © 2012 Apache Software Foundation. All Rights Reserved.