io.cdap.cdap.internal.dataset

Class DatasetRuntimeContext

java.lang.Object

io.cdap.cdap.internal.dataset.DatasetRuntimeContext

All Implemented Interfaces:

AutoCloseable

public abstract class DatasetRuntimeContext
extends Object
implements AutoCloseable

The internal context object used by the Dataset framework to track Dataset methods.

Constructor Summary

Constructors

Constructor and Description
DatasetRuntimeContext()

Method Summary

Modifier and Type	Method and Description
abstract void	close()
static DatasetRuntimeContext	getContext() Return the current DatasetRuntimeContext.
abstract void	onMethodEntry(boolean constructor, Class<? extends Annotation> annotation) Method to call when a dataset method is invoked.
abstract void	onMethodExit() Method to call when a dataset method is about to return.
static org.apache.twill.common.Cancellable	setContext(DatasetRuntimeContext context) Sets the current DatasetRuntimeContext.

Methods inherited from class java.lang.Object

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

Constructor Detail

DatasetRuntimeContext

public DatasetRuntimeContext()

Method Detail

getContext

public static DatasetRuntimeContext getContext()

Return the current DatasetRuntimeContext.

setContext

public static org.apache.twill.common.Cancellable setContext(DatasetRuntimeContext context)

Sets the current DatasetRuntimeContext. This method can only be initiated from system class.

onMethodEntry

public abstract void onMethodEntry(boolean constructor,
                                   @Nullable
                                   Class<? extends Annotation> annotation)

Method to call when a dataset method is invoked.

Parameters:

constructor - true if the call comes from constructor

annotation - one of the ReadOnly, WriteOnly or ReadWrite annotation on the method. Use null for method that is not annotated,

onMethodExit

public abstract void onMethodExit()

Method to call when a dataset method is about to return.

close

public abstract void close()

Specified by:

close in interface AutoCloseable