org.springframework.xd.dirt.job.dsl

Class JobSpecificationVisitor<T>

java.lang.Object

org.springframework.xd.dirt.job.dsl.JobSpecificationVisitor<T>

Type Parameters:

T - the type of the context objects flowing across the visit

public abstract class JobSpecificationVisitor<T>
extends java.lang.Object

very basic visitor pattern for a JobSpecVisitor. Provide a concrete implementation to participate in the visit.

Constructor Summary

Constructors

Constructor and Description
JobSpecificationVisitor()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	accept(JobSpecification jobSpec) Called to start a visit of a specific JobSpec.
void	postJobSpecWalk(T context, JobSpecification jobSpec) Override to provide code that will run just after the visit completes.
T	preJobSpecWalk() Override to provide code that will run just before the visit starts.
abstract T	walk(T context, Flow jobSeries) Visit a sequence of jobs (flow).
abstract T	walk(T context, JobDefinition jobDefinition)
T	walk(T context, JobNode jn)
abstract T	walk(T context, JobReference jobReference)
abstract T	walk(T context, Split jobSeries)

Methods inherited from class java.lang.Object

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

Constructor Detail

JobSpecificationVisitor

public JobSpecificationVisitor()

Method Detail

accept

protected void accept(JobSpecification jobSpec)

Called to start a visit of a specific JobSpec.

walk

public final T walk(T context,
     JobNode jn)

preJobSpecWalk

public T preJobSpecWalk()

Override to provide code that will run just before the visit starts.

Returns:

optionally return some context that will be passed to the first real visit operation

postJobSpecWalk

public void postJobSpecWalk(T context,
                   JobSpecification jobSpec)

Override to provide code that will run just after the visit completes.

Parameters:

context - the final context computed by the last of the main visit operations

jobSpec - the job specification being visited

walk

public abstract T walk(T context,
     Flow jobSeries)

Visit a sequence of jobs (flow).

Parameters:

context - any context this visitor is passing during visits

jobSeries - a JobNode representing a series of jobs run in sequence

Returns:

any context to pass along to the next visit calls

walk

public abstract T walk(T context,
     JobDefinition jobDefinition)

walk

public abstract T walk(T context,
     JobReference jobReference)

walk

public abstract T walk(T context,
     Split jobSeries)