ConcurrencyThrottleSupport (Spring Framework) - Spring Framework 1.2.9 API 文档英文版

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org.springframework.util
Class ConcurrencyThrottleSupport

java.lang.Object
  org.springframework.util.ConcurrencyThrottleSupport

All Implemented Interfaces:: Serializable

Direct Known Subclasses:: ConcurrencyThrottleInterceptor

public abstract class ConcurrencyThrottleSupport
extends Object
implements Serializable
extends Object
implements Serializable

Support class for throttling concurrent access to a specific resource.

Designed for use as a base class, with the subclass invoking the beforeAccess and afterAccess methods at appropriate points of its workflow. Note that afterAccess should usually be called in a finally block!.

This class is designed for serializability, to allow for serializing interceptors that derive from it. Note that the subclass needs to explicitly implement the Serializable marker interface if it is actually serializable.

Since:: 1.2.5
Author:: Juergen Hoeller
See Also:: setConcurrencyLimit(int), beforeAccess(), afterAccess(), ConcurrencyThrottleInterceptor, Serializable, Serialized Form

Field Summary

protected Log logger
          Transient to optimize serialization

Constructor Summary

ConcurrencyThrottleSupport()


Method Summary

protected void afterAccess()
          To be invoked after the main execution logic of concrete subclasses.

protected void beforeAccess()


int getConcurrencyLimit()
          Return the maximum number of parallel accesses allowed.

boolean isThrottleActive()
          Return whether this throttle is currently active.

void setConcurrencyLimit(int concurrencyLimit)
          Set the maximum number of parallel accesses allowed

Methods inherited from class java.lang.Object

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

Field Summary
`protected Log`	`logger` Transient to optimize serialization

Constructor Summary
`ConcurrencyThrottleSupport()`

Method Summary
`protected void`	`afterAccess()` To be invoked after the main execution logic of concrete subclasses.
`protected void`	`beforeAccess()`
`int`	`getConcurrencyLimit()` Return the maximum number of parallel accesses allowed.
`boolean`	`isThrottleActive()` Return whether this throttle is currently active.
`void`	`setConcurrencyLimit(int concurrencyLimit)` Set the maximum number of parallel accesses allowed

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

logger

protected transient Log logger

Transient to optimize serialization

Constructor Detail