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Java Source Code / Java Documentation » Web Framework » rife 1.6.1 » com.uwyn.rife.continuations.basic

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Class Diagram

Java Document (Java Doc)

java.lang .Object

com.uwyn.rife.continuations.basic .BasicContinuableRunner

All known Subclasses:   com.uwyn.rife.continuations .ContinuableRunnerTest,
BasicContinuableRunner
public class BasicContinuableRunner (Code)
Basic implementation of a 'continuable runner' that will execute the continuable objects and correctly handle the continuations-related exceptions that are triggered.
This runner is probably only applicable to the most simple of use-cases, but by reading its source it should be relatively easy to adapt of extend it for purposes that don't fall inside its scope.
author:
   Geert Bevin (gbevin[remove] at uwyn dot com)
version:
   $Revision: 3850 $
since:
   1.6

Constructor Summary
public BasicContinuableRunner(ContinuationConfigInstrument configInstrument)
     Create a new runner instance.
public BasicContinuableRunner(ContinuationConfigInstrument configInstrument, ClassLoader classloader)
     Create a new runner instance with a custom classloader.

Method Summary
public String answer(String continuationId, Object callAnswer)
     Resumes the execution of a call continuation.
public void beforeExecuteEntryMethodHook(ContinuableObject object)
     Hook method that will be executed right before executing the entry method of a continuable object, when the default implementation of BasicContinuableRunner.executeContinuable is used.
public BasicContinuableRunner callTargetRetriever(CallTargetRetriever callTargetRetriever)
     Sets the call target retriever that will be used when a call continuation is triggered.
public BasicContinuableRunner cloneContinuations(boolean cloneContinuations)
     Configures the runner to clone continuations or not.
public void executeContinuable(ContinuableObject object)
     Executes the continuable object by looking up the entrance method and invoking it.
public CallTargetRetriever getCallTargetRetriever()
     Retrieves the call target retriever that will be used when a call continuation is triggered.
public ClassLoader getClassLoader()
     Retrieves the classloader that is used by this runner.
public boolean getCloneContinuations()
     Indicates whether continuations should be cloned when they are resumed.
public ContinuationConfigInstrument getConfigInstrumentation()
     Retrieves the instrumentation configuration that is used by this runner.
public ContinuableObject getCurrentContinuable()
     Retrieves the continuable that is active for the executing thread.
public ContinuationManager getManager()
     Retrieves the manager that is used by the continuation runner.
public String resume(String continuationId)
     Resumes the execution of a paused continuation.
public String run(String continuationId)
     Executes a continuation whether it's paused or not.
public void setCallTargetRetriever(CallTargetRetriever callTargetRetriever)
     Sets the call target retriever that will be used when a call continuation is triggered.
public void setCloneContinuations(boolean cloneContinuations)
     Configures the runner to clone continuations or not.
public String start(String className)
     Starts the execution of a new instance of the provided class.

Constructor Detail
BasicContinuableRunner
public BasicContinuableRunner(ContinuationConfigInstrument configInstrument)(Code)
Create a new runner instance.
Parameters:
  configInstrument - the instance of the instrumentationconfiguration that will be used for the transformation
since:
   1.6

BasicContinuableRunner
public BasicContinuableRunner(ContinuationConfigInstrument configInstrument, ClassLoader classloader)(Code)
Create a new runner instance with a custom classloader.
Parameters:
  configInstrument - the instance of the instrumentationconfiguration that will be used for the transformation
Parameters:
  classloader - the classloader that will be used to load thecontinuable classes, this is for example an instance ofBasicContinuableClassLoader
since:
   1.6

Method Detail
answer
public String answer(String continuationId, Object callAnswer) throws Throwable(Code)
Resumes the execution of a call continuation.
Parameters:
  continuationId - the ID of the continuation that will be resumed
Parameters:
  callAnswer - the call answer object the ID of the resulting paused continuation; or
null if no continuation was paused or if the provided IDcouldn't be found
throws:
  Throwable - when an error occurs
since:
   1.6.1

beforeExecuteEntryMethodHook
public void beforeExecuteEntryMethodHook(ContinuableObject object)(Code)
Hook method that will be executed right before executing the entry method of a continuable object, when the default implementation of BasicContinuableRunner.executeContinuable is used.
This can for example be used to inject a continuable support object in case the main continuable class only implements the marker interface without having any of the support methods (see ContinuationConfigInstrument.getContinuableSupportClassName ).
Parameters:
  object - the continuable object that will be executed
See Also:   BasicContinuableRunner.executeContinuable
since:
   1.6

callTargetRetriever
public BasicContinuableRunner callTargetRetriever(CallTargetRetriever callTargetRetriever)(Code)
Sets the call target retriever that will be used when a call continuation is triggered.
Parameters:
  callTargetRetriever - the call target retriever that will be used this runner instance
See Also:   BasicContinuableRunner.setCallTargetRetriever
See Also:   BasicContinuableRunner.getCallTargetRetriever
since:
   1.6

cloneContinuations
public BasicContinuableRunner cloneContinuations(boolean cloneContinuations)(Code)
Configures the runner to clone continuations or not.
Parameters:
  cloneContinuations - true if continuations should becloned when they are resumed; or
false if they should not be cloned this runner instance
See Also:   BasicContinuableRunner.setCloneContinuations
See Also:   BasicContinuableRunner.getCloneContinuations
since:
   1.6

executeContinuable
public void executeContinuable(ContinuableObject object) throws Throwable(Code)
Executes the continuable object by looking up the entrance method and invoking it.
This method can be overridden in case the default behavior isn't approriate.
Parameters:
  object - the continuatioble that will be executed
throws:
  Throwable - when an unexpected error occurs
since:
   1.6.1

getCallTargetRetriever
public CallTargetRetriever getCallTargetRetriever()(Code)
Retrieves the call target retriever that will be used when a call continuation is triggered. this runner's call target retriever
See Also:   BasicContinuableRunner.callTargetRetriever
See Also:   BasicContinuableRunner.setCallTargetRetriever
since:
   1.6

getClassLoader
public ClassLoader getClassLoader()(Code)
Retrieves the classloader that is used by this runner. this runner's classloader
since:
   1.6

getCloneContinuations
public boolean getCloneContinuations()(Code)
Indicates whether continuations should be cloned when they are resumed. true if continuations should be cloned when they areresumed; or
false if they should not be cloned
See Also:   BasicContinuableRunner.cloneContinuations
See Also:   BasicContinuableRunner.setCloneContinuations
since:
   1.6

getConfigInstrumentation
public ContinuationConfigInstrument getConfigInstrumentation()(Code)
Retrieves the instrumentation configuration that is used by this runner. this runner's instrumentation configuration
since:
   1.6

getCurrentContinuable
public ContinuableObject getCurrentContinuable()(Code)
Retrieves the continuable that is active for the executing thread. this thread's continuable; or
null if there's no current continuable
since:
   1.6

getManager
public ContinuationManager getManager()(Code)
Retrieves the manager that is used by the continuation runner. this runner's continuation manager
since:
   1.6

resume
public String resume(String continuationId) throws Throwable(Code)
Resumes the execution of a paused continuation.
Parameters:
  continuationId - the ID of the continuation that will be resumed the ID of the resulting paused continuation; or
null if no continuation was paused or if the provided IDcouldn't be found
throws:
  Throwable - when an error occurs
since:
   1.6

run
public String run(String continuationId) throws Throwable(Code)
Executes a continuation whether it's paused or not. This is supposed to only be used for answer continuations.
Parameters:
  continuationId - the ID of the existing continuation context thatwill be executed the ID of the resulting paused continuation; or
null if no continuation was paused or if the provided IDcouldn't be found
throws:
  Throwable - when an error occurs
since:
   1.6

setCallTargetRetriever
public void setCallTargetRetriever(CallTargetRetriever callTargetRetriever)(Code)
Sets the call target retriever that will be used when a call continuation is triggered.
Parameters:
  callTargetRetriever - the call target retriever that will be used
See Also:   BasicContinuableRunner.callTargetRetriever
See Also:   BasicContinuableRunner.getCallTargetRetriever
since:
   1.6

setCloneContinuations
public void setCloneContinuations(boolean cloneContinuations)(Code)
Configures the runner to clone continuations or not.
Parameters:
  cloneContinuations - true if continuations should becloned when they are resumed; or
false if they should not be cloned
See Also:   BasicContinuableRunner.cloneContinuations
See Also:   BasicContinuableRunner.getCloneContinuations
since:
   1.6

start
public String start(String className) throws Throwable(Code)
Starts the execution of a new instance of the provided class.
Parameters:
  className - the name of the class that will be executed the ID of the resulting paused continuation; or
null if no continuation was paused
throws:
  Throwable - when an error occurs
since:
   1.6

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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