java.lang.Object
- org.springframework.batch.core.scope.context.StepSynchronizationManager

```
public class StepSynchronizationManager
extends java.lang.Object
```
Central convenience class for framework use in managing the step scope context. Generally only to be used by implementations of Step. N.B. it is the responsibility of every Step implementation to ensure that a StepContext is available on every thread that might be involved in a step execution, including worker threads from a pool.
作者:
Dave Syer, Michael Minella, Mahmoud Ben Hassine

构造器概要
构造器
构造器说明
StepSynchronizationManager()

方法概要

所有方法静态方法具体方法
修饰符和类型	方法	说明
`static void`	`close()`	Method for unregistering the current context - should always and only be used by in conjunction with a matching `register(StepExecution)` to ensure that `getContext()` always returns the correct value.
`static StepContext`	`getContext()`	Getter for the current context if there is one, otherwise returns `null`.
`static StepContext`	`register(StepExecution stepExecution)`	Register a context with the current thread - always put a matching `close()` call in a finally block to ensure that the correct context is available in the enclosing block.
`static StepContext`	`register(StepExecution stepExecution, BatchPropertyContext propertyContext)`	Register a context with the current thread - always put a matching `close()` call in a finally block to ensure that the correct context is available in the enclosing block.
`static void`	`release()`	A convenient "deep" close operation.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - StepSynchronizationManager
```
public StepSynchronizationManager()
```
- 方法详细资料
  - getContext
```
@Nullable
public static StepContext getContext()
```
    Getter for the current context if there is one, otherwise returns null.
    返回:
    the current StepContext or null if there is none (if one has not been registered for this thread).
  - register
```
public static StepContext register(StepExecution stepExecution)
```
    Register a context with the current thread - always put a matching close() call in a finally block to ensure that the correct context is available in the enclosing block.
    参数:
    stepExecution - the step context to register
    返回:
    a new StepContext or the current one if it has the same StepExecution
  - register
```
public static StepContext register(StepExecution stepExecution,
                                   BatchPropertyContext propertyContext)
```
    Register a context with the current thread - always put a matching close() call in a finally block to ensure that the correct context is available in the enclosing block.
    参数:
    stepExecution - the step context to register
    propertyContext - an instance of BatchPropertyContext to be used by the StepSynchronizationManager.
    返回:
    a new StepContext or the current one if it has the same StepExecution
  - close
```
public static void close()
```
    Method for unregistering the current context - should always and only be used by in conjunction with a matching register(StepExecution) to ensure that getContext() always returns the correct value. Does not call StepContext.close() - that is left up to the caller because he has a reference to the context (having registered it) and only he has knowledge of when the step actually ended.
  - release
```
public static void release()
```
    A convenient "deep" close operation. Call this instead of close() if the step execution for the current context is ending. Delegates to StepContext.close() and then ensures that close() is also called in a finally block.

类 StepSynchronizationManager

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

StepSynchronizationManager

方法详细资料

getContext

register

register

close

release