Package io.netty.util

Class Signal

java.lang.Object

java.lang.Throwable

java.lang.Error

io.netty.util.Signal

All Implemented Interfaces:

Constant<Signal>, Serializable, Comparable<Signal>

public final class Signal
extends Error
implements Constant<Signal>

A special Error which is used to signal some state or request by throwing it. Signal has an empty stack trace and has no cause to save the instantiation overhead.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	Signal.SignalConstant

Field Summary

Fields

Modifier and Type	Field	Description
private final Signal.SignalConstant	constant
private static final ConstantPool<Signal>	pool
private static final long	serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Signal(int id, String name)	Creates a new Signal with the specified name.

Method Summary

Modifier and Type	Method	Description
int	compareTo(Signal other)
boolean	equals(Object obj)
void	expect(Signal signal)	Check if the given Signal is the same as this instance.
Throwable	fillInStackTrace()
int	hashCode()
int	id()	Returns the unique number assigned to this Constant.
Throwable	initCause(Throwable cause)
String	name()	Returns the name of this Constant.
String	toString()
static Signal	valueOf(Class<?> firstNameComponent, String secondNameComponent)	Shortcut of valueOf(firstNameComponent.getName() + "#" + secondNameComponent).
static Signal	valueOf(String name)	Returns the Signal of the specified name.

Methods inherited from class java.lang.Throwable

addSuppressed, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, printStackTrace, printStackTrace, printStackTrace, setStackTrace

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

pool

private static final ConstantPool<Signal> pool

constant

private final Signal.SignalConstant constant

Constructor Details

Signal

private Signal(int id,
 String name)

Creates a new Signal with the specified name.

Method Details

valueOf

public static Signal valueOf(String name)

Returns the Signal of the specified name.

valueOf

public static Signal valueOf(Class<?> firstNameComponent,
 String secondNameComponent)

Shortcut of valueOf(firstNameComponent.getName() + "#" + secondNameComponent).

expect

public void expect(Signal signal)

Check if the given Signal is the same as this instance. If not an IllegalStateException will be thrown.

initCause

public Throwable initCause(Throwable cause)

Overrides:

initCause in class Throwable

fillInStackTrace

public Throwable fillInStackTrace()

Overrides:

fillInStackTrace in class Throwable

id

public int id()

Description copied from interface: Constant

Returns the unique number assigned to this Constant.

Specified by:

id in interface Constant<Signal>

name

public String name()

Description copied from interface: Constant

Returns the name of this Constant.

Specified by:

name in interface Constant<Signal>

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(Signal other)

Specified by:

compareTo in interface Comparable<Signal>

toString

public String toString()

Overrides:

toString in class Throwable