Module it.tidalwave.util

Package it.tidalwave.util.spi

Class ContextSnapshot

java.lang.Object

it.tidalwave.util.spi.ContextSnapshot

public class ContextSnapshot
extends Object

A facility that takes a snapshot of the contexts that are current at creation time and make them available later.

Author:

Fabrizio Giudici

Constructor Summary

Constructors

Constructor	Description
ContextSnapshot(Object owner)	Creates a new instance and samples the currently available contexts.

Method Summary

Modifier and Type	Method	Description
List<Object>	getContexts()	Returns the previously sampled contexts.
<V, T extends Throwable> V	runWithContexts(Task<V,T> task)	Runs a Task associated with the sampled contexts.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

ContextSnapshot

public ContextSnapshot(@Nonnull
 Object owner)

Creates a new instance and samples the currently available contexts.

Parameters:

owner - the owner

Method Details

getContexts

@Nonnull
public List<Object> getContexts()

Returns the previously sampled contexts.

Returns:

the contexts

runWithContexts

public <V,
T extends Throwable> V runWithContexts(@Nonnull
 Task<V,T> task)
                                           throws T

Runs a Task associated with the sampled contexts.

Type Parameters:

V - the type of the result value

T - the type of the exception

Parameters:

task - the task

Returns:

the value produced by the task

Throws:

T - the exception(s) thrown by the task

toString

@Nonnull
public String toString()

Overrides:

toString in class Object