org.springframework.batch.core.job.flow.support.state
Class DecisionState

java.lang.Object
  extended by org.springframework.batch.core.job.flow.support.state.AbstractState
      extended by org.springframework.batch.core.job.flow.support.state.DecisionState
All Implemented Interfaces:
State

public class DecisionState
extends AbstractState

State that requires a decider to make the status decision.

Since:
2.0
Author:
Dave Syer

Constructor Summary
DecisionState(JobExecutionDecider decider, String name)
           
 
Method Summary
 FlowExecutionStatus handle(FlowExecutor executor)
          Handle some business or processing logic and return a status that can be used to drive a flow to the next State.
 boolean isEndState()
          Inquire as to whether a State is an end state.
 
Methods inherited from class org.springframework.batch.core.job.flow.support.state.AbstractState
getName, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

DecisionState

public DecisionState(JobExecutionDecider decider,
                     String name)
Parameters:
name -
Method Detail

handle

public FlowExecutionStatus handle(FlowExecutor executor)
                           throws Exception
Description copied from interface: State
Handle some business or processing logic and return a status that can be used to drive a flow to the next State. The status can be any string, but special meaning is assigned to the static constants in FlowExecution. The context can be used by implementations to do whatever they need to do. The same context will be passed to all State instances, so implementations should be careful that the context is thread safe, or used in a thread safe manner.

Specified by:
handle in interface State
Specified by:
handle in class AbstractState
Parameters:
executor - the context passed in by the caller
Returns:
a status for the execution
Throws:
Exception - if anything goes wrong

isEndState

public boolean isEndState()
Description copied from interface: State
Inquire as to whether a State is an end state. Implementations should return false if processing can continue, even if that would require a restart.

Returns:
true if this State is the end of processing


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