Package it.tidalwave.role.spi

Class DefaultContextManager

java.lang.Object

it.tidalwave.role.spi.DefaultContextManager

All Implemented Interfaces:

ContextManager

public class DefaultContextManager
extends java.lang.Object
implements ContextManager

Author:

Fabrizio Giudici

Nested Class Summary

Nested classes/interfaces inherited from interface it.tidalwave.role.ContextManager

ContextManager.Binder, ContextManager.Locator, ContextManager.RunnableWithException<E extends java.lang.Throwable>, ContextManager.SupplierWithException<T,E extends java.lang.Throwable>

Constructor Summary

Constructors

Constructor	Description
DefaultContextManager()

Method Summary

Modifier and Type	Method	Description
void	addGlobalContext(java.lang.Object context)	Adds a global context.
void	addLocalContext(java.lang.Object context)	Adds a local context.
<T> T	findContextOfType(java.lang.Class<T> contextType)	Finds a current context instance of the given type.
java.util.List<java.lang.Object>	getContexts()	Returns the list of current contexts, ordered by their priority.
void	removeGlobalContext(java.lang.Object context)	Removes a global context.
void	removeLocalContext(java.lang.Object context)	Removes a local context.
<T,E extends java.lang.Throwable> T	runEWithContexts(ContextManager.SupplierWithException<T,E> supplier, java.lang.Object... contexts)	Calls a task with some local contexts.

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.tidalwave.role.ContextManager

binder, runEWithContexts, runWithContext, runWithContext, runWithContexts, runWithContexts, runWithContexts, runWithContexts

Constructor Detail

DefaultContextManager

public DefaultContextManager()

Method Detail

getContexts

@Nonnull
public java.util.List<java.lang.Object> getContexts()

Returns the list of current contexts, ordered by their priority.

Specified by:

getContexts in interface ContextManager

Returns:

the list of current contexts

findContextOfType

@Nonnull
public <T> T findContextOfType(@Nonnull
                               java.lang.Class<T> contextType)
                        throws NotFoundException

Finds a current context instance of the given type.

Specified by:

findContextOfType in interface ContextManager

Type Parameters:

T - the static context type

Parameters:

contextType - the dynamic context type

Returns:

the requested context

Throws:

NotFoundException - if no context of that type is found

addGlobalContext

public void addGlobalContext(@Nonnull
                             java.lang.Object context)

Adds a global context.

Specified by:

addGlobalContext in interface ContextManager

Parameters:

context - the new context

removeGlobalContext

public void removeGlobalContext(@Nonnull
                                java.lang.Object context)

Removes a global context.

Specified by:

removeGlobalContext in interface ContextManager

Parameters:

context - the context

addLocalContext

public void addLocalContext(@Nonnull
                            java.lang.Object context)

Adds a local context.

Specified by:

addLocalContext in interface ContextManager

Parameters:

context - the new context

removeLocalContext

public void removeLocalContext(@Nonnull
                               java.lang.Object context)

Removes a local context.

Specified by:

removeLocalContext in interface ContextManager

Parameters:

context - the context

runEWithContexts

@Nonnull
public <T,E extends java.lang.Throwable> T runEWithContexts(@Nonnull
                                                                  ContextManager.SupplierWithException<T,E> supplier,
                                                                  @Nonnull
                                                                  java.lang.Object... contexts)
                                                           throws E extends java.lang.Throwable

Calls a task with some local contexts. This method fits functional interfaces.

Specified by:

runEWithContexts in interface ContextManager

Type Parameters:

T - the type of the returned value

E - the type of the thrown exception

Parameters:

supplier - the task to call

contexts - the contexts

Returns:

the value returned by the supplier

Throws:

E - the original exception thrown by task

E extends java.lang.Throwable