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org.apache.oozie.command.wf
Class SignalCommand

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